Wykłady i seminaria
2025
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24 czerwca 2025
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Selected Topics of Vision Research in Latvia
- Dr. Sergejs Fomins Assistant Professor & Guest Researcher, University of Latvia
- ICTER seminar, IChF aula and online
- Zobacz więcej
Selected Topics of Vision Research in Latvia
- Data: 24 czerwca 2025, 16:00
- Prelegent: Dr. Sergejs Fomins Assistant Professor & Guest Researcher, University of Latvia
- Instytucja: ICTER seminar, IChF aula and online
- Miejsce:
Aula and online.
Register for a webinar: https://zoom.us/webinar/register/WN_795gp_cfS6KPhfKjBffIhw#/registration
- Abstrakt:
How do we see color - and what happens when we can’t? Join us for an eye-opening seminar as Dr. Sergejs Fomins presents research from Latvia on human visual perception.
Topics will include:- New insights into colour vision deficiencies
- Advances in pseudoisochromatic test plates and chromatic adaptation
- Research on AR/VR applications and EEG studies
- Innovations in diagnostic tools and vision-enhancing technologies
About the speaker:
Dr. Fomins bridges science and innovation. As a researcher at the University of Latvia and Co-founder of Optic A and MATX, he develops smart imaging tools for both human vision and astronomy. His work blends engineering, optics, and neuroscience.
Whether you're into tech or the future of eye diagnostics - this seminar will spark your curiosity.
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20 czerwca 2025
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Seeing Small and Aiming Big: The Development and Clinical Impact of Optical Coherence Tomography
- Prof. David Huang
- IChF Aula, ul. Kasprzaka 44/52
- Zobacz więcej
Seeing Small and Aiming Big: The Development and Clinical Impact of Optical Coherence Tomography
- Data: 20 czerwca 2025, 10:00
- Prelegent: Prof. David Huang
- Instytucja: IChF Aula, ul. Kasprzaka 44/52
- Miejsce:
IChF Aula, ul. Kasprzaka 44/52
Join online: https://zoom.us/j/93796947480
- Osoba kontaktowa:
Marzena Łazarczyk
POB Group Coordinator
Research Project Manager and Laboratory Coordinator
- Abstrakt:
We’re honored to host Prof. David Huang, one of the pioneering minds behind Optical Coherence Tomography (OCT) — a groundbreaking imaging technology that has transformed eye and heart care globally.
In this special seminar, Prof. Huang will offer a rare inventor’s perspective:- The physics behind OCT, simply explained
- The “aha!” moment that started it all
- How OCT moved from lab to clinic, impacting millions
- What’s next—like 3D imaging and “oculomics” for brain and heart diagnostics
Prof. Huang’s contributions earned him the Lasker Award, the National Medal of Technology and Innovation, and induction into the National Inventors Hall of Fame. This is a unique chance to hear from a visionary who shaped modern ophthalmology.
Join us to explore how seeing the tiniest structures in the eye is opening big doors in medicine.
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12 czerwca 2025
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Topology as a Tool for Molecular Discovery: CO2-philicity, Ligand Design, and Beyond
- Prof. Konstantinos D. Vogiatzis, University of Tennessee, Knoxville, USA
- IChF Aula
Dream Chemistry Lectures- Zobacz więcej
Topology as a Tool for Molecular Discovery: CO2-philicity, Ligand Design, and Beyond
- Data: 12 czerwca 2025, 10:00
- Prelegent: Prof. Konstantinos D. Vogiatzis, University of Tennessee, Knoxville, USA
- Instytucja: IChF Aula
- Abstrakt:
Artificial intelligence (AI) and machine learning (ML) have become important tools for chemists, enabling the analysis of vast chemical datasets. A key to harnessing these methods lies in translating molecular information into computationally useful representations, which are critical for training robust ML models. [1] We introduce a novel molecular fingerprinting method based on persistent homology, a concept from topological data analysis that captures essential topological features of molecular structures across multiple spatial resolutions. [2] This approach provides a unique perspective on molecular geometry, enhancing both the accuracy and interpretability of computational models. In this talk, I will outline the theoretical foundations of persistent homology and its adaptation for molecular applications. I will also highlight recent advancements that improve its accuracy and portability. Representative applications related to the discovery of novel CO2-philic molecules for carbon capture, [2] the design of ligands for catalyst optimization [3] and actinide capture, [4], polymer informatics, where topological fingerprints facilitate materials discovery, [5] and drug design [6] will be provided. This framework exemplifies the synergy between topology and AI, offering new avenues for chemical discovery and advancing our understanding of molecular systems.
[1] Jones, G. M.; Story, B.; Maroulas, V.; Vogiatzis, K. D., “Molecular Representations for Machine Learning”, ACS In Focus Series, 2023.
[2] Townsend, J.; Micucci, C. P.; Hymel, J. H.; Maroulas, V.; Vogiatzis, K. D., Nat. Commun., 2020, 11, 3230.
[3] Jones, G. M.; Smith, B. A.; Kirkland, J. K.; Vogiatzis, K. D., Inorg. Chem. Front., 2023, 10, 1062.
[4] Laub, J.; Vogiatzis, K. D., Digit. Discov., 2025, 4, 1100.
[5] Queen, O.; McCarver, G. A.; Thatigotla, S.; Abolins, B. P.; Brown, C. L.; Maroulas, V.; Vogiatzis, K. D., npj Comput. Mater., 2023, 9, 90.
[6] Campbell, J. W., Vogiatzis, K. D., Submitted.
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11 czerwca 2025
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PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 11 czerwca 2025, from 2:00 PM to approx. 3:00 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Joanna Koprowska, M. Sc.
‘From legislation to forensic laboratory - the problem of drug-facilitated crimes, and how to solve it?’
Morel Ntanhaning, M. Sc.
‘Unlocking the potential of ion transfer voltammetry-based electronics tongues for Date Rape Drugs detection in real samples’
This session will be chaired jointly by the PhD students Piotr Jaworucki and Natalia Szczepańska.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
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10 czerwca 2025
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Investigation of Optogenetic Signal Enhancement via TRP Proteins
- Milena Gumkowska (Mućka)
- ICTER and the Department of Physical Chemistry of Biological Systems seminar, IChF aula and online
- Zobacz więcej
Investigation of Optogenetic Signal Enhancement via TRP Proteins
- Data: 10 czerwca 2025, 16:00
- Prelegent: Milena Gumkowska (Mućka)
- Instytucja: ICTER and the Department of Physical Chemistry of Biological Systems seminar, IChF aula and online
- Miejsce:
IChF aula and online
Register in advance for this webinar:
Zoom link
Meeting ID: 917 9443 7885
Passcode: 754621
- Abstrakt:
Vision is a crucial sense that enables individuals to perceive and navigate their surrounding. However, along with changes in the environment, lifestyle, and other factors, eye-related diseases expand tremendously among the modern population. Although extensive research, there remains no method to fully reverse the already caused damage. The proposed strategy utilizes optogenetic technique to deliver the therapeutic cargo (potentially through the introduction of a light-sensitive channel) with the use of viral vectors to precisely targeted cells; however, this alone may not be sufficient to achieve a functional effect. Therefore, the broader objective is to identify an appropriate response amplifier capable of converting remaining retinal cells into synthetic photoreceptors, thereby enhancing the vision restoration.
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9 czerwca 2025
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Principles of drug development and target discovery
- Kenji Shoji, Biology Director at Oncodesing Precision Medicine
- special seminar hosted by Team 19, IChF Aula
- Zobacz więcej
Principles of drug development and target discovery
- Data: 9 czerwca 2025, 12:00
- Prelegent: Kenji Shoji, Biology Director at Oncodesing Precision Medicine
- Instytucja: special seminar hosted by Team 19, IChF Aula
- Abstrakt:
Kenji Shoji is a translational medicine leader with a PhD in Physiology and over 19 years of experience in oncology R&D across academia and industry. His expertise spans from early-stage drug development to clinical trials, with a focus on innovative approaches in cancer research. As a postdoctoral researcher (2012-2015) at IRSET-INSERM U1085 (Rennes, France), he specialized in preclinical candidate characterization for cancer research. At Galapagos NV (2016-2022), he led a team in target discovery using AI, developed a flow cytometry platform, and introduced cutting-edge technologies like single-cell analysis and spatial transcriptomics. Currently (since 2022), as Biology Director at Oncodesing Precision Medicine, he oversees novel target validation, clinical biomarker selection, and preclinical package consolidation. He also leads the ONCOSNIPE project, a clinical study on various carcinomas aimed at discovering novel oncology targets.
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6 czerwca 2025
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The onset potential
- Prof. Marcin Opałło
- Friday Morning Electrochemistry seminar, online and conference room
- Zobacz więcej
The onset potential
- Data: 6 czerwca 2025, 9:15
- Prelegent: Prof. Marcin Opałło
- Instytucja: Friday Morning Electrochemistry seminar, online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
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3 czerwca 2025
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Designing enzymes de novo
- Prof. Donald Hilvert, ETH Zurich, Switzerland
- IChF Aula
Dream Chemistry Lectures- Zobacz więcej
Designing enzymes de novo
- Data: 3 czerwca 2025, 2:00 PM
- Prelegent: Prof. Donald Hilvert, ETH Zurich, Switzerland
- Instytucja: IChF Aula
- Miejsce:
IChF Aula
- Abstrakt:
Abstract: Biocatalysis is emerging as a key enabling technology for the development of a greener and more efficient chemical industry. Because natural enzymes are seldom suitable for direct use in chemical processes, however, protein engineering is typically required to optimize their properties for practical applications. For many desirable chemical transformations, natural enzymes may not even exist. Recent advances on the computational design of atomically accurate protein structures, combined with high-throughput evolutionary optimization, are providing a potential roadmap for reliably creating new-to-nature biocatalysts in response to diverse societal demands. In this lecture, the strategies, opportunities, and challenges facing this emerging field will be surveyed.
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3 czerwca 2025
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Protein degraders: New insights and twists of molecular mechanism and drug design
- Prof Alessio Ciulli, University of Dundee
- ICTER and the Department of Physical Chemistry of Biological Systems seminar, IChF aula and online
- Zobacz więcej
Protein degraders: New insights and twists of molecular mechanism and drug design
- Data: 3 czerwca 2025, 16:00
- Prelegent: Prof Alessio Ciulli, University of Dundee
- Instytucja: ICTER and the Department of Physical Chemistry of Biological Systems seminar, IChF aula and online
- Miejsce:
IChF aula and online
Register in advance for this webinar:
Zoom link
Meeting ID: 917 9443 7885
Passcode: 754621
- Abstrakt:
Our laboratory at the Centre for Targeted Protein Degradation (CeTPD) reveals molecular information on protein interactions and ubiquitination complexes and mechanisms to design novel molecular therapeutics and concept. Protein degrader, also known as PROTACs (PROteolysis-TArgeting Chimeras) and molecular glues, recruit a target protein to a ubiquitin E3 ligase for targeted protein degradation. Formation of a stable ternary complex between the degrader, the E3 ligase and the target is a critical step that leads to productive tagging of the target protein by ubiquitination, and subsequent proteasomal degradation. Our research has illuminated fundamental structural and biophysical insights into molecular recognition and mechanism of action of protein degraders, that have guided the design and optimization of novel small molecules for hard-to-target proteins, including Brd9, SMARCA2, KRAS and LRRK2. In my lecture, I will illustrate key lessons from these fundamental work and drug discovery campaigns. I will then outline recent studies involving creative design and mechanistic insights, that have ushered development of exciting new concepts, such as trivalent PROTACs, dynamics combinatorial PROTACs, and intramolecular bivalent glues.
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2 czerwca 2025
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N,N’,N”-triarylisocyanurates and related octupoles as two-photon absorbing octupolar chromophores
- Prof. Frédéric Paul, Université de Rennes I
- IChF Aula
Excellent Chemistry Lectures- Zobacz więcej
N,N’,N”-triarylisocyanurates and related octupoles as two-photon absorbing octupolar chromophores
- Data: 2 czerwca 2025, 15:00
- Prelegent: Prof. Frédéric Paul, Université de Rennes I
- Instytucja: IChF Aula
- Abstrakt:
Since the seminal publication of Zyss et al. octupolar molecules with three-fold rotational symmetry (D3h or D3) have attracted sustained interest in the field of nonlinear optics due to their potentially large second- or third-order nonlinearities, making them often good two-photon absorbers,1-2 as is the case for N,N’,N”-isocyanurates (or 1,3,5-triazine-2,4,6-triones).3a-b We have previously shown that this is even more true when metal centers are incorporated as organometallic endgroups into their structure, but at the expense of their luminescence.4a-b In this presentation, we will now stick to organic derivatives and show, after recalling some of our initial results,3a how various structural variations can affect the photophysical properties of interest of these derivatives. We will also show through selected examples how this knowledge can be used for designing more efficient two-photon dyes or photosensitizers based on this old family of molecules. Comparison with closely related octupoles will also be made to show the specificities of these compounds.
References: 1 Zyss, J. Ledoux, I. Chem. Rev. 94 (1994) 77. 2 Kim, H. M.; Cho, B. R. Chem. Commun. 2009, 153. 3a Argouarch, G. Veillard, R. Roisnel, T. Amar, A. Meghezzi, H. Boucekkine, A. Hugues, V. Mongin, O. Blanchard-Desce, M. Paul, F. Chem. Eur. J. 2012, 18, 11811. 3b Y. Gautier, G. Argouarch, F. Malvolti, B. Blondeau, N. Richy, A. Amar, A. Boucekkine, K. Nawara, K. Chlebowicz, G. Orzanowska, K. Matczyszyn, M. Dudek, M. Samoc, M. Blanchard-Desce, O. Mongin, J. Waluk and F. Paul, ChemPlusChem, 2020, 85, 411. 4a Trujillo, A. Veillard, R. Argouarch, G. Roisnel, T. Singh, A. Ledoux, I. Paul, F. Dalton Trans. 41 (2012), 7454. 4b G. Grelaud, M. P. Cifuentes, F. Paul sand M. G. Humphrey, J. Organomet. Chem., 2014, 751, 181.
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30 maja 2025
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Biopolymer nanoparticles obtained by agri-food waste valorization
- Prof. Jaroslav Katona, University of Novi Sad, Serbia
- Joint Friday Morning Electrochemistry seminar and Living Materials tutorial seminar, conference room
- Zobacz więcej
Biopolymer nanoparticles obtained by agri-food waste valorization
- Data: 30 maja 2025, 9:30
- Prelegent: Prof. Jaroslav Katona, University of Novi Sad, Serbia
- Instytucja: Joint Friday Morning Electrochemistry seminar and Living Materials tutorial seminar, conference room
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29 maja 2025
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Functional colloids
- Prof. Jaroslav Katona, University of Novi Sad, Serbia
- Excellent Chemistry Lecture, Cluster 1, IChF Aula
Excellent Chemistry Lectures- Zobacz więcej
Functional colloids
- Data: 29 maja 2025, 10:00
- Prelegent: Prof. Jaroslav Katona, University of Novi Sad, Serbia
- Instytucja: Excellent Chemistry Lecture, Cluster 1, IChF Aula
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28 maja 2025
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PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 28 maja 2025, from 2:00 PM to approx. 3:30 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Natalia Szczepańska, M. Sc.
‘Inorganic thin coatings: Synthesis and deposition of transition metal
nanoparticles and dichalcogenides’
Piotr Blaut, M. Sc.
‘Engineering of a multi-cell line platform for drug testing: Development
of a perfused capillary network for advanced tumor microenvironment models’
Tomasz Gryber, M. Sc.
‘Proton transfer from deprotonated 8-oxoguanine to adenine: A
theoretical study’
This session will be chaired jointly by the PhD students K. Skała, M.
Ficek, and B. Fabjanowicz.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
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27 maja 2025
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Generative AI for molecule discovery
- Prof. Ewa Szczurek, University of Warsaw, co-director of the Institute of AI for Health at Helmholtz Munich
- IChF Aula
Dream Chemistry Lectures- Zobacz więcej
Generative AI for molecule discovery
- Data: 27 maja 2025, 11:30
- Prelegent: Prof. Ewa Szczurek, University of Warsaw, co-director of the Institute of AI for Health at Helmholtz Munich
- Instytucja: IChF Aula
- Abstrakt:
Prof. Ewa Szczurek is the co-director of the Institute of AI for Health at Helmholtz Munich, Germany (from Feb 2024), and leads joint labs at Helmholtz Munich and at the Faculty of Mathematics, Informatics and Mechanics of the University of Warsaw, Poland. She was a visiting associate professor at Northwestern University in the United States (2023) and a visiting fellow at the Center for Interdisciplinary Research, Bielefeld, Germany (2016). She holds Master degrees in computer science from the University of Warsaw, Poland and Uppsala University, Sweden. She obtained her doctoral degree from the Max Planck Institute for Molecular Genetics in Berlin (2011), followed by a postdoctoral fellowship in Switzerland at ETH Zurich. Prof. Szczurek was a recipient of the distinction, scientific and didactic awards from the Rector of the University of Warsaw, as well as ETH Zurich and IMPRS fellowships for her postdoctoral and doctoral research. She acts as a program committee member for the ISMB and RECOMB-CCB conferences, area chair for NeurIPS, as well as associate editor for Genome Biology. Her research focuses on artificial intelligence, in particular probabilistic graphical models and deep generative models, and their applications in computational medicine. Her specific applications include oncology, pulmonology and the AI-driven design of antimicrobial peptides, a work for which she was recently awarded the ERC Consolidator grant.
Generative AI emerged as a promising technique to revolutionize drug discovery. The key challenge for applications of generative AI for molecule design is to equip the methods with controllability mechanisms, an area our lab has been recently focusing. Here, I will describe two approaches for AI-driven antimicrobial peptide design, namely a conditional variational autoencoder-based model, called HydrAMP, and a controlled diffusion model OmegAMP. I will also introduce our transformer-based joint generative and predictive model for molecule generation, Hyformer. Finally, I will go through Prospero, our recent active-learning and generative AI-based method for protein optimization. I will summarize promises and challenges that remain to be addressed in the field.
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27 maja 2025
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Why go commerce?
- Dr Konrad Hennig, Cofounder and Member of Board of BioForum Association of Biotechnology Companies
- ICTER & IChF Vision Seminar, IChF Aula and online
- Zobacz więcej
Why go commerce?
- Data: 27 maja 2025, 16:00
- Prelegent: Dr Konrad Hennig, Cofounder and Member of Board of BioForum Association of Biotechnology Companies
- Instytucja: ICTER & IChF Vision Seminar, IChF Aula and online
- Miejsce:
IChF aula and online
Zoom link (registration required)
Meeting ID: 917 9443 7885
Passcode: 754621
- Abstrakt:
Why go commerce when science can be that beautiful? Are money worth the risk? Hopefully there are several parts of ecosystem that stops pharma heroes from drowning. Learn about Incubation and Acceleration Programs, Venture Building Companies, Business Angels and VC Funds. Last but not least, BioForum Association, which helps biotech professionals to find right partners for their ventures.
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23 maja 2025
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Development of and electrochemical method for antioxidant properties assessing based on the CUPRAC test
- Morel Ntanhaning
- Friday Morning Electrochemistry seminar, online and conference room
- Zobacz więcej
Development of and electrochemical method for antioxidant properties assessing based on the CUPRAC test
- Data: 23 maja 2025, 9:15
- Prelegent: Morel Ntanhaning
- Instytucja: Friday Morning Electrochemistry seminar, online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
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21 maja 2025
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PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 21 maja 2025, from 2:00 PM to approx. 3:00 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Maciej Ficek, M. Sc.
‘Effective programming and GPU programming’
Piotr Jaworucki, M. Sc.
‘The characterization of esters from the oxidation of α-pinene and
β-pinene by liquid chromatography coupled to high-resolution mass
spectrometry’
This session will be chaired jointly by the PhD students Jacek Sobków
and Tadeusz Rymarz.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
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16 maja 2025
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SECM study of hydrogen photogeneration at polarized interface between two immiscible electrolyte solutions
- Ariba Aziz (Team 6)
- Friday Morning Electrochemistry seminar, online and conference room
- Zobacz więcej
SECM study of hydrogen photogeneration at polarized interface between two immiscible electrolyte solutions
- Data: 16 maja 2025, 9:15
- Prelegent: Ariba Aziz (Team 6)
- Instytucja: Friday Morning Electrochemistry seminar, online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
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14 maja 2025
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PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 14 maja 2025, from 2:00 PM to approx. 3:00 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Tadeusz Rymarz, M. Sc.
‘Simulations and experiments towards data-driven control of biomass gasification process ’
Bartosz Fabjanowicz, M. Sc.
‘Challenges facing ultrashort pulse generation in the ultraviolet range’
This session will be chaired jointly by the PhD students Antoni Lis and Wiktoria Zacheja.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
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13 maja 2025
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In vivo optical imaging of photoreceptors’ response to light stimulation
- Sławomir Tomczewski (ICTER)
- ICTER seminar, IChF aula and online
- Zobacz więcej
In vivo optical imaging of photoreceptors’ response to light stimulation
- Data: 13 maja 2025, 16:00
- Prelegent: Sławomir Tomczewski (ICTER)
- Instytucja: ICTER seminar, IChF aula and online
- Miejsce:
IChF aula and online
Zoom link (registration required)
Meeting ID: 917 9443 7885
Passcode: 754621
- Abstrakt:
In ophthalmic research and practice, psychophysical and electrophysiological methods are used to obtain information on visual function. Psychophysical tests are subjective as they rely on the answers from the subject detecting and visually processing the light stimulus. Visual electrophysiology tests measuring changes in electric potentials originating from retinal neurons are objective but also difficult to conduct due to the requirement for the installation of special electrodes on the subject. This talk will focus on optoretinography, a new, objective, non-contact optical method for measuring photoreceptors’ activity.
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7 maja 2025
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Joint IPHT-IChF Doctoral Webinar
- online
- Zobacz więcej
Joint IPHT-IChF Doctoral Webinar
- Data: 7 maja 2025, 13:30
- Instytucja: online
- Miejsce:
ZOOM link: https://zoom.us/j/5054340400
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
Joint IPHT—IChF Doctoral Webinar
May 7, 2025
13:30 Introduction
Session 1 (Chair: Francesco Bello)
13:35-13:55 Dennis Kirsch (IPHT, Jena): "Operating ultrafast thulium-doped fibre oscillators by the Mamyshev mechanism"
13:55-14:15 Jacek Sobków (IChF, Warsaw): "Quest for the perfect ultrafast fiber laser power amplifier"
14:15-14:35 Xinyue Wang (IPHT, Jena): "Structure–property analysis of micelles via correlated nanomechanical and spectroscopic methods"
14:35-14:45 ---break---
Session 2 (Chair: Tomasz Piros)
14:45-15:05 Karolina Skała (IChF, Warsaw): "Are atomically precise gold nanoclusters SERS platforms?"
15:05-15:25 Yisak Tsegazab Gerase (IPHT, Jena): "Amphiphiles in organic electronics"
15:25-15:55 Wiktoria Zacheja (IChF, Warsaw): "Impact of the localized surface plasmon resonance in gold nanorods on molecular photoswitching”
15:55 Closing remarks
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5 maja 2025
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The Grignard reaction : why so challenging to model?
- Prof. Odile Eisenstein - a member of the French Academy of Sciences
- IChF, UW and PAN lecture, IChF Aula
- Zobacz więcej
The Grignard reaction : why so challenging to model?
- Data: 5 maja 2025, 11:00
- Prelegent: Prof. Odile Eisenstein - a member of the French Academy of Sciences
- Instytucja: IChF, UW and PAN lecture, IChF Aula
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25 kwietnia 2025
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Friday Morning Electrochemistry seminar
- Piyush Sindhu Sharma (Team 18)
- online and conference room
- Zobacz więcej
Friday Morning Electrochemistry seminar
- Data: 25 kwietnia 2025, 9:15
- Prelegent: Piyush Sindhu Sharma (Team 18)
- Instytucja: online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
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24 kwietnia 2025
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Dreaming Simulating Reactive Electrochemical Interfaces on the Mesoscale
- Jun Huang (Institute of Energy Technologies, Forschungszentrum Jülich GmbH, Germany, Faculty of Georesources and Materials Engineering, RWTH Aachen University, Germany)
- IChF Aula
Dream Chemistry Lectures- Zobacz więcej
Dreaming Simulating Reactive Electrochemical Interfaces on the Mesoscale
- Data: 24 kwietnia 2025
- Prelegent: Jun Huang (Institute of Energy Technologies, Forschungszentrum Jülich GmbH, Germany, Faculty of Georesources and Materials Engineering, RWTH Aachen University, Germany)
- Instytucja: IChF Aula
- Abstrakt:
Simulating electron transfer at reactive solid-liquid interfaces under constant electrochemical potentials of the constituents (electrons, ions, solvent etc.) is crucial to understanding the formation, functional and failure of electrochemical devices, while it is largely still a dream to fulfill. Albeit being sufficiently accurate in decreasing breaking and formation of chemical bond at solid surfaces, existing methods based on Kohn-Sham density functional theory (DFT) are unsatisfactory in system consistency, namely, simulating the open solid-liquid interface under grand-canonical conditions, as well as in scaling up the simulation due to its high computational cost. Herein, to improve the system consistency and computational efficiency, we develop density-potential functional theoretic (DPFT) schemes out of Kohn-Sham DFT, drawing upon ideas of orbital-free DFT, frozen density embedding theory, and tight-binding DFT. The DPFT transforms an all-atom, Kohn-Sham DFT description of the nonreactive electrolyte solution into a coarse-grained, field-based description, while retaining a Kohn-Sham DFT description for the reactive subsystem. In the absence of surface reactions, the solid electrode can be described using orbital-free DFT, reducing the computational cost further. On the conceptual level, the physical meaning of potential in DPFT is examined. Recent applications of DPFT to simulate EDLs with mesoscopic roughness and EDLs at supported nanoparticles will be introduced.
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23 kwietnia 2025
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PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 23 kwietnia 2025, from 2:00 PM to approx. 3:00 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Antoni Lis, M. Sc.
‘Unexpected Bottlenecks in Nuclear Export: A Study of Kinetics and
Diffusion’
Tomasz Piros, M. Sc.
‘Hybridization of nucleic acids depending on the number and position of
mismatched base pairs’
This session will be chaired jointly by the PhD students Małgorzata
Przerwa and Maede Pajouhande.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
16 kwietnia 2025
-
Spectroscopic light of nanoconfined water flow
- Prof. Mischa Bonn, Max Planck Institute for Polymer Research, Mainz
- Excellent Chemistry Lecture, Cluster 2, IChF Aula
Excellent Chemistry Lectures- Zobacz więcej
Spectroscopic light of nanoconfined water flow
- Data: 16 kwietnia 2025, 10:00
- Prelegent: Prof. Mischa Bonn, Max Planck Institute for Polymer Research, Mainz
- Instytucja: Excellent Chemistry Lecture, Cluster 2, IChF Aula
- Osoba kontaktowa:
Sylwester Gawinkowski
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16 kwietnia 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 16 kwietnia 2025, from 2:00 PM to approx. 3:00 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Małgorzata Przerwa, M. Sc.
‘Self-propelling optically heated Janus particles’
Maede Pajouhande, M. Sc.
‘Development of a high-throughput combinatorial microfluidics-assisted
3D bioprinter’
This session will be chaired jointly by the PhD students Patrycja Hejduk
and Momina Islam.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
15 kwietnia 2025
-
Rabies virus infection of the mouse retina
- Anna Galińska
- ICTER seminar, IChF Aula and online
- Zobacz więcej
Rabies virus infection of the mouse retina
- Data: 15 kwietnia 2025, 16:00
- Prelegent: Anna Galińska
- Instytucja: ICTER seminar, IChF Aula and online
- Miejsce:
Aula and online
Zoom link (registration required)
Meeting ID: 917 9443 7885
Passcode: 754621
-
11 kwietnia 2025
-
Microbial Cells, Enzymes and Nanozymes as Bioanalytical Tools
- Nataliya Stasyuk (Team 6)
- Friday Morning Electrochemistry seminar, online and conference room
- Zobacz więcej
Microbial Cells, Enzymes and Nanozymes as Bioanalytical Tools
- Data: 11 kwietnia 2025, 9:15
- Prelegent: Nataliya Stasyuk (Team 6)
- Instytucja: Friday Morning Electrochemistry seminar, online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
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9 kwietnia 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 9 kwietnia 2025, from 2:00 PM to approx. 3:30 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Patrycja Hejduk, M. Sc.
‘Spherical-cap polymer particles modified with selenium nanoparticles as
drug carriers’
Momina Islam, M. Sc.
‘Application of molecular imprinting polymers in electrochemical surface
plasmon (E-SPR) based sensing’
Julia Owczarska, M. Sc.
‘Molecularly imprinted polymers for antiviral drugs determination’
This session will be chaired jointly by the PhD students Sanat Kumar
Mahankudo, Natalia Dutkiewicz, and Veranika Kuzmina.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
2 kwietnia 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 2 kwietnia 2025, from 2:00 PM to approx. 3:30 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Sanat Kumar Mahankudo, M. Sc.
'Photophysics of atomically precise gold nanoclusters'
Natalia Dutkiewicz, M. Sc.
‘Harnessing the power of porphyrin complexes for generation and temperature-controlled release of singlet oxygen’
Veranika Kuzmina, M. Sc.
‘Studies of photoreactivity using NMR and spectroscopic techniques’
This session, supervised by Prof. Rafał Szmigielski, will be chaired jointly by the PhD students Karolina Saran, Sara Moczulska, and Weronika Rybińska.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
28 marca 2025
-
Impact of the surface plasmon resonance of gold nanorods on molecular photoswitching
- Wiktoria Zacheja (Team 4)
- Friday Morning Electrochemistry seminar, online and conference room
- Zobacz więcej
Impact of the surface plasmon resonance of gold nanorods on molecular photoswitching
- Data: 28 marca 2025, 9:15
- Prelegent: Wiktoria Zacheja (Team 4)
- Instytucja: Friday Morning Electrochemistry seminar, online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
-
26 marca 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 26 marca 2025, from 2:00 PM to approx. 3:00 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Sara Moczulska, M. Sc.
‘Production of pharmaceutical and perfume intermediates by selective citral hydrogenation’
Weronika Julia Rybińska, M. Sc.
‘Selective hydrogenation of prenal (3-methyl-2-butenal) on Nickel-MOF derived catalysts’
This session will be chaired jointly by the PhD students Smith Pataraprasitpon and Huma Jamil.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
21 marca 2025
-
Synthesis of Novel Acceptors for Application in Organic Bulk Heterojunction Photovoltaic Cells
- Julia Owczarska (Team 18)
- Friday Morning Electrochemistry seminar, online and conference room
- Zobacz więcej
Synthesis of Novel Acceptors for Application in Organic Bulk Heterojunction Photovoltaic Cells
- Data: 21 marca 2025, 9:15
- Prelegent: Julia Owczarska (Team 18)
- Instytucja: Friday Morning Electrochemistry seminar, online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
-
19 marca 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 19 marca 2025, from 2:00 PM to approx. 3:30 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Smith Pataraprasitpon, M. Sc.
‘Computational Modeling of Cross-Beam Radiation–Matter Interactions’
Huma Jamil, M. Sc.
‘Fluorescence Correlation Spectroscopy for Diffusivity of Rhodamine in
Polyethylene Glycol’
Karolina Saran, M. Sc.
‘Neural tracing using AAV and modified rabies virus’
This session will be chaired jointly by the PhD students Paulina Musolf,
Marek Czarnota, and Maryia Piletskaya.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
14 marca 2025
-
Continual learning for analytical chemistry
- Emilia Witkowska-Nery (Team 12)
- Friday Morning Electrochemistry seminar, online and conference room
- Zobacz więcej
Continual learning for analytical chemistry
- Data: 14 marca 2025, 9:15
- Prelegent: Emilia Witkowska-Nery (Team 12)
- Instytucja: Friday Morning Electrochemistry seminar, online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
-
13 marca 2025
-
Deciphering the Viral Entry
- prof. dr hab. Krzysztof Pyrć (Virogenetics Research Group, Małopolskie Centrum Biotechnologii, Uniwersytet Jagielloński, Kraków, Polska)
- IChF Aula
Dream Chemistry Lectures- Zobacz więcej
Deciphering the Viral Entry
- Data: 13 marca 2025, 11:00
- Prelegent: prof. dr hab. Krzysztof Pyrć (Virogenetics Research Group, Małopolskie Centrum Biotechnologii, Uniwersytet Jagielloński, Kraków, Polska)
- Instytucja: IChF Aula
- Osoba kontaktowa:
Jan Paczesny
- Abstrakt:
The final part of the talk will be dedicated to topics related to academic career development and will be primarily aimed at students, PhD candidates, and early-career researchers.
In 2024, the Council of the Foundation for Polish Science (FNP) appointed Prof. Krzysztof Pyrć as the President of the Foundation’s Management Board. He will officially assume this position on September 1, 2025.
Attendance is mandatory for all PhD candidates.
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12 marca 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 12 marca 2025, from 2:00 PM to approx. 3:30 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Paulina Musolf, M. Sc.
‘Plasmon excitation in hybrid systems: Silver nanowires and fluorescent
dyes’
Marek Czarnota, M. Sc.
‘Polydispersity determination using NMR’
Maryia Piletskaya, M. Sc.
‘High-throughput custom systems for biomaterials screening and
biological analysis of centimetre-scale muscles’
This session will be chaired jointly by the PhD students Lucyna
Piórkowska, Tomasz Bednarek, and Jatin Yadav.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
5 marca 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 5 marca 2025, from 2:00 PM to approx. 3 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Tomasz Bednarek, M. Sc.
‘The Anderson metal-insulator transition’
Jatin Yadav, M. Sc.
‘Lead-free perovskite solar cell’
This session will be chaired jointly by the PhD students Vaishali
Shrivastav and Ariba Aziz.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
26 lutego 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 26 lutego 2025, from 2:00 PM to approx. 3 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Vaishali Shrivastav, M. Sc.
‘Fabrication and Polishing of Nanoelectrodes for Scanning
Electrochemical Microscopy (SECM) and Voltammetry’
Ariba Aziz, M. Sc.
‘Photogeneration of hydrogen at the polarized interface between two
immiscible electrolyte solutions with electron donor recycling’
This session will be chaired jointly by the PhD students Leon Jurkiewicz
and Bartosz Kamiński.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
20 lutego 2025
-
Metal-Organic Frameworks as Photocatalysts for Solar Fuels Production
- Prof. Hermenegildo Garcia, Universitat Politecnica de Valencia, Spain
- IChF Aula and online
Dream Chemistry Lectures- Zobacz więcej
Metal-Organic Frameworks as Photocatalysts for Solar Fuels Production
- Data: 20 lutego 2025
- Prelegent: Prof. Hermenegildo Garcia, Universitat Politecnica de Valencia, Spain
- Instytucja: IChF Aula and online
- Miejsce:
IChF Aula and online
Zoom link
Meeting ID: 910 3088 5169
Passcode: 453676
- Abstrakt:
Prof. Hermenegildo Garcia, Universitat Politecnica de Valencia, Spain has published over 900 research articles with current H index of 134 (GS) and has supervised over 50 PhD. He has been in the list of Highly Cited Researchers since this list started in 2014 and has received the Spanish National Research Award in 2021, the Rey Jaime I award in 2016, and the Spanish Royal Chemistry Society in 2011. He is thee recipient of the 2025 Ryland He is mer award given by the North American Chemical Society. He is elected member of the Spanish Royal Academy of Science and of the Spanish National Research Agency.
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19 lutego 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 19 lutego 2025, from 2 PM to approx. 3:00 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Leon Jurkiewicz, M. Sc.
‘Microfluidics assisted ultra-precision printing of granular hydrogels
for throughput drug screening’
Bartosz Kamiński, M. Sc.
‘Illuminating antimicrobial defense: Quantum dot hydroxyapatite
nanoparticles with light sensitivity and antimicrobial properties’
This session will be chaired jointly by the PhD students Lucyna
Piórkowska and Milena Gumkowska.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
18 lutego 2025
-
How chemistry can benefit from artificial intelligence
- Prof. Paweł Wawrzyński, NCBR IDEAS
- IChF Aula
Excellent Chemistry Lectures- Zobacz więcej
How chemistry can benefit from artificial intelligence
- Data: 18 lutego 2025, 10:00
- Prelegent: Prof. Paweł Wawrzyński, NCBR IDEAS
- Instytucja: IChF Aula
-
14 lutego 2025
-
Exploring the Electroanalytical Performance of Tailored 3D-Printable Composite Electrode
- Prof. Jacek Ryl (Gdansk University of Technology)
- Friday Morning Electrochemistry seminar, online and conference room
- Zobacz więcej
Exploring the Electroanalytical Performance of Tailored 3D-Printable Composite Electrode
- Data: 14 lutego 2025, 9:15
- Prelegent: Prof. Jacek Ryl (Gdansk University of Technology)
- Instytucja: Friday Morning Electrochemistry seminar, online and conference room
- Miejsce:
Online and conference room
Zoom link
Meeting ID: 986 5802 1858
Passcode: EvsAg/AgCl
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6 lutego 2025
-
Single-Atom Catalysis for Greener Chemical Processes
- Prof. Gianvito Vile, Politecnico di Milano, Italy
- IChF Aula
Dream Chemistry Lectures- Zobacz więcej
Single-Atom Catalysis for Greener Chemical Processes
- Data: 6 lutego 2025
- Prelegent: Prof. Gianvito Vile, Politecnico di Milano, Italy
- Instytucja: IChF Aula
- Miejsce:
IChF Aula and online
Zoom link
Meeting ID: 967 4320 7167
Passcode: 168794
- Abstrakt:
Prof. Gianvito Vile, Politecnico di Milano, Italy. He has received several awards for his research, including the ETH Medal, the Dimistris N. Chorafas Award from the Weizmann Institute of Sciences, the Felder Award from the pharmaceutical company Bracco, and the ERC Starting Grant from the European Research Council. He is the coordinator or partner of several European grants (among those, SAC_2.0, GreenDigiPharma, SACforCO2, MERGE, and SusPharma), Italian grants (PRIN, PRIN PNRR), and other industrial projects. He is also expert evaluator or panel member for several national or international scientific foundations. Gianvito has been elected Fellow of the Young Academy of Europe, a pan-European academy of 200 top young scientists and scholars from every discipline, supported by Academia Europaea.
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31 stycznia 2025
-
Scanning tunneling microscopy of monolayer organic films
- Prof. Alexandr Marchenko, Institute of Physics, National Academy of Sciences, Kyiv, Ukraine
- Seminar of the Team 7, Conference room
- Zobacz więcej
Scanning tunneling microscopy of monolayer organic films
- Data: 31 stycznia 2025, 11:00
- Prelegent: Prof. Alexandr Marchenko, Institute of Physics, National Academy of Sciences, Kyiv, Ukraine
- Instytucja: Seminar of the Team 7, Conference room
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29 stycznia 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 29 stycznia 2025, from 2:00 PM to approx. 3:00 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Behdokht Hashemi Hosseini, M. Sc.
‘Synthesis of Chitosan-Lignin Catalysts for Sono-photocatalytic
Reactions: The Role of Sonication and Isotropic Solvents’
Dominik Korol, M. Sc.
‘Not only for text and images: inkjet printing of electrodes and its
application in chemosensing’
This session will be chaired jointly by the PhD students Gunjan Tiwari
and Klaudia Staśkiewicz.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
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23 stycznia 2025
-
Imaging infections using label-free Raman spectroscopy
- Prof. Ute Neugebauer, Leibniz IPHT, Jena, Germany
- IChF Aula
Dream Chemistry Lectures- Zobacz więcej
Imaging infections using label-free Raman spectroscopy
- Data: 23 stycznia 2025, 13:00
- Prelegent: Prof. Ute Neugebauer, Leibniz IPHT, Jena, Germany
- Instytucja: IChF Aula
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22 stycznia 2025
-
PhD Seminar
- IPC PAS Auditorium
- Zobacz więcej
PhD Seminar
- Data: 22 stycznia 2025, from 2:00 PM to approx. 3:30 PM.
- Instytucja: IPC PAS Auditorium
- Miejsce:
A weekly PhD seminar will be held in the IPC PAS Auditorium on Wednesday.
- Osoba kontaktowa:
Robert Kołos
Head
Doctoral Studies, IPC PAS
- Abstrakt:
In the programme:
Gunjan Tiwari, M. Sc.
‘Co-assembly of magnetic nanoparticles and amino acid architecture using
Langmuir-Blodgett trough experiment’
Klaudia Staśkiewicz, M. Sc.
‘Characterization of bacterial biofilm growth using microfluidic devices’
Wojciech Mazurkiewicz, M. Sc.
‘An antifouling study of surface-modified carbon fiber microelectrodes
against dopamine oxidation byproducts’
This session will be chaired jointly by the PhD students Habibollah
Atigheh, Abhishek Viswanath, and Julia Maciejewska-Komorowska.
Everybody is most welcome to attend (the Thesis Supervisors in particular!)
-
21 stycznia 2025
-
A molecular view at interfaces - emulsion and catalysis
- Prof. Ellen Backus, University of Vienna
- Excellent Chemistry Lecture - Cluster 2, IChF Aula
Excellent Chemistry Lectures- Zobacz więcej
A molecular view at interfaces - emulsion and catalysis
- Data: 21 stycznia 2025, 11:00
- Prelegent: Prof. Ellen Backus, University of Vienna
- Instytucja: Excellent Chemistry Lecture - Cluster 2, IChF Aula
- Osoba kontaktowa:
dr Sylwester Gawinkowski
- Abstrakt:
Interfaces are important areas where reactions are taking place or where interactions on the molecular level determine the energetics. However, often it is difficult to obtain molecular level information from an interface, as the surrounding bulk molecules overwhelms the signal from the few interfacial molecules. In this talk we will discuss how sum frequency generation spectroscopy (SFG) can be used to obtain molecular level information of interfaces. Sum-frequency generation (SFG) spectroscopy is a technique capable of retrieving vibrational information of selectively interfacial molecules even if bulk amounts of liquid are present. Here, we will discuss two recent highlights of our work.
In the first part of the talk we will aim to understand the molecular scale interactions of a switchable emulsifier comprising poly(methacrylic acid) (PMAA) and poly(ethylene glycol) methacrylate (PEGMA). This emulsifier forms stable oil/water emulsions at pH > 10, but the emulsion becomes unstable at pH < 3 due to droplet aggregation. Using SFG, we study the PMAA/PEGMA polymer deposited on an aqueous subphase. We find that at pH 2.5, both MAA-EG H-bonds and MAA = MAA cyclic dimers contribute to droplet aggregation in the emulsion. In contrast, at pH 11.5 deprotonation and solvation of the PMAA component lead to a polymer restructuring forming a negative shell around the droplets, electrostatically stabilising the emulsion in alkaline conditions.
In the second part of the talk will follow the dynamics of water molecules at the TiO2-water interface after photoexcitation with UV light. A critical step in photocatalytic water dissociation is the hole-mediated oxidation reaction. Using femtosecond time-resolved SFG spectroscopy we could obtain molecular-level insights into the mechanism of this complex reaction under realistic conditions. Following the generation of holes at the surface immediately after photoexcitation of the catalyst with UV light, water dissociation occurs on a sub-20 ps timescale. At both pH 3 and 11, we observe the conversion of H2O into Ti-OH groups and the deprotonation of pre-existing Ti-OH groups. This study provides unique experimental insights into the early steps of the photo-induced dissociation processes at the photocatalyst-water interface.
Ellen Backus obtained her PhD in 2005 at Leiden University in the Netherlands. After a PostDoc at the University of Zurich, she moved back to the Netherlands for an independent PostDoc position at AMOLF in Amsterdam. In 2012, she joined the Molecular Spectroscopy department at the Max Planck Institute for Polymer Research as a group leader. Since 2018 she is professor for physical chemistry at the University of Vienna and leading the Ultrafast and Nonlinear Spectroscopy group. The overall research goal of her group is understanding the structure, relaxation dynamics, and reactivity of soft matter at interfaces and in bulk on the molecular scale.
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13 stycznia 2025
-
IChF Microsymposium
- 13-15.01.2025 (monday to wednesday), IChF
- Zobacz więcej
IChF Microsymposium
- Data: 13 stycznia 2025
- Instytucja: 13-15.01.2025 (monday to wednesday), IChF
- Miejsce:
Zoom link (lectures only)
Meeting ID: 923 0508 2437
Passcode: 492219