Regensburg 2025 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 38: Interfaces and Thin Films II

CPP 38.1: Hauptvortrag

Donnerstag, 20. März 2025, 16:15–16:45, H38

Adsorption and Interaction of Amino Acids on Titanium Oxide Photocatalyst — Miguel Blanco-Garcia¹, Mona Kohantorabi¹, Benedikt Socher², Ulrike Protzer³, Stephan V. Roth², Cristiana Di Valentin⁴, Andreas Stierle¹, and •Heshmat Noei¹ — ¹Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany — ²Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany — ³Institute of Virology, Technical University of Munich/Helmholtz Munich, 81675 Munich, Germany — ⁴Department of Materials Science, University of Milano-Bicocca, Via R. Cozzi 55, I-20125, Milano, Italy

We investigated the adsorption behavior of amino acids and SARS-CoV-2 virus on rutile (110) and anatase (101) TiO2 surfaces through a combined experimental and theoretical approach and explored the molecular configurations and bonding mechanisms involved in interaction of cysteine and SARS-CoV-2 with TiO2. Clarification of the interaction of the virus with the surface of semiconducting oxides will aid in obtaining a deeper understanding of the chemical processes involved in photo-inactivation of microorganisms which is important for developing advanced photocatalytic materials for environmental and biomedical applications. [1] M. Kohantorabi, et al., ACS Appl. Mater. Interfaces 16, 28 (2024) 37275. [2] M. Kohantorabi, et al., ACS Appl. Mater. Interfaces 15, 6 (2023) 8770.

Keywords: photocatalysis; self cleaning; Spectroscopy; Amino acid; Oxide Surfaces