Martedì 11 giugno 2024 - Ore 14:30 – Aula 33
Asia Botto, Doctoral School in Chemistry and Material Science DCCI-UNIPI
Discussione Tesi DSCM
Precision proteomics of pancreatic ductal adenocarcinoma
Supervisori: Prof. Liam A. McDonnell e Prof. Ilaria Bonaduce
Martedì 18 giugno 2024 - Ore 14:30 - Aula 33
Prof.ssa Nicoletta Liguori
ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology
Seminario
Plants and algae provide a natural example of how solar energy can be converted into chemical energy in the presence of oxygen while avoiding photodamage. It has now been established that plants and algae prevent photooxidation by activating a rapidly inducible and reversible photoprotective mechanism at the level of their light-harvesting complexes. However, the precise activation process of this photoprotective mechanism remains unknown. We will here introduce our current understanding of how light-harvesting is regulated in plants and algae and, more generally, in oxygenic photosynthetic organisms. We will then highlight the tools, especially in the field of ultrafast spectroscopy, developed by our group aimed at unraveling the molecular mechanisms governing the activation of photoprotection in photosynthetic organisms. Understanding both the mechanism and the rate at which plants can activate or deactivate photoprotection will provide answers to long-standing open questions in the fields of biophysics and physical chemistry. This knowledge will also be instrumental in inspiring new studies focused on maximizing plant productivity through the optimization of photoprotective responses—a recent, groundbreaking avenue of research.
Martedì 18 giugno 2024 - Ore 10:00 – Aula 34
Andrea Taddeucci, Doctoral School in Chemistry and Material Science DCCI-UNIPI
Discussione Tesi DSCM
Spatially resolved electronic circular dichroism of chiral π-conjugated materials in thin film
Supervisori: Prof. Lorenzo Di Bari e Prof. Giuliano Siligardi
Giovedì 20 giugno 2024 - Ore 15:00 - Aula 22
Dott. Marco Mendolicchio
Scuola Normale Superiore
Seminario
Lunedì 24 giugno 2024 - Ore 14:30 - Aula 22
Prof. Krzysztof Kuciński
Faculty of Chemistry, Adam Mickiewicz University, Poznan (Poland)
Seminario
One major focus over the past 15 years has been shifting from expensive noble metal catalysts to more affordable alternatives, such as coordinating 3d metals and main-group catalysis. Thorough process optimization has even allowed for the complete elimination of catalysts, especially in the synthesis of organoboron compounds. Silylation of organic and organometalloidal compounds provides a strategic method for producing valuable siloxanes and silyl-protected intermediates, including silyl ethers and 1-alkynylsilanes. While derivatives with acidic protons, like alcohols, phenols, and silanols, can be readily silylated, halosilanes are typically used for this purpose. However, these reagents present high moisture sensitivity, requiring stoichiometric base and the formation of corrosive byproducts, sparking interest in more sustainable alternatives. Furthermore, using halosilanes can result in chemoselectivity issues, particularly in synthesizing unsymmetrical siloxanes. In response, we have recently developed a range of methods based on dehydrogenative and dealkynative coupling using 3d metal-catalysis or main-group compounds. These methods enable the direct synthesis of Si-X (O, N, C) bonds. Applications in organoboron and organosulfur compounds will also be discussed.
Martedì 2 luglio 2024 - Ore 15:00 - Aula 22
Dott. Filippo Giovanni Fabozzi
Department of Chemistry & Center for the Science of Materials Berlin, Humboldt-Universität zu Berlin (Germany)
Seminario
Scanning Probe Microscopies, such as Scanning Tunneling Microscopy (STM), are crucial tools for visualizing phenomena on flat surfaces due to their exceptional lateral resolution. Despite their capabilities, fully understanding and controlling nanoscale processes remains a significant challenge in surface science. In this context, STM at the solid-liquid interface not only enables imaging of 2D nanoarchitectures with molecular precision but also initiates and controls chemical and physical processes in the second dimension. We demonstrate how rational molecular design and activation methods influence the supramolecular organization of building blocks, facilitating the creation of novel π-conjugated 2D polymers. Additionally, we show how the electric field applied by the STM tip can precisely control conformational changes in molecular 2D crystal structures, enabling nanoscale control of molecular Moiré Patterns. Lastly, we introduce a strategy combining self-assembly with light irradiation to control photochemical reactions of non-symmetric stilbene derivatives. This interdisciplinary approach highlights STM's pivotal role in understanding and manipulating fundamental surface phenomena, advancing the field of nanoscience and nanotechnology.
03|05 July, 2024 - Pisa
Dipartimento di Chimica e Chimica Industriale
International Conference
CFF is a yearly international conference, which has reached its 8th edition, on the frontiers of Chemical Research. The idea of CFF is to convey every year several outstanding scientists from different sectors of chemistry. Every edition of CFF is organized by the 2nd-year PhD students of the Doctoral School in Chemistry and Materials Science (DSCM) of the University of Pisa.
Venerdì 26 luglio 2024 - Ore 14:30 - Aula 24
Mohan Ananthakrishnan, Doctoral School in Chemistry and Material Science DCCI-UNIPI
Discussione Tesi DSCM
Novel magnetoplasmonic strategies: magneto-optical study onco-doped semiconductor nanocrystals and noble metal nanohybrids
Supervisore: Prof. Francesco Pineider
Martedì 30 luglio 2024 - Ore 10:30 - Aula 24
Maria Antonietta Carpentieri, Doctoral School in Chemistry and Material Science DCCI-UNIPI
Discussione Tesi DSCM
Development of didactic sequences for introducing the UV-Vis Spectroscopy at high school level and first introductory undergraduate courses
Supervisore: Prof. Valentina Domenici
Giovedì 5 settembre 2024 - Ore 15:00 - Aula 24
Prof. Marcio Peres de Araujo - Federal University of Paraná, Brazil
Seminario
Prof. Marcio Peres de Araujo will present the work from his research group on ruthenium triphosphine complexes for catalysis (decomposition of formic acid) and ruthenium-cymene complexes containing P-N-P or N-N ligands for medicinal chemistry applications. Chemical and electrochemical reactivity of such complexes will be discussed.