Berlin 2024 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 15: Poster I
CPP 15.42: Poster
Montag, 18. März 2024, 18:00–20:00, Poster C
Core-shell nanoparticles for wet-coated surface-enhanced raman scattering (SERS) application — •Jungui Zhou1, Yingjian Guo1,2, Suo Tu2, Anuradha Bhogra1, Sarathlal Koyiloth Vayalil1, Daniel Söderberg5, Peter Müller-Buschbaum2,3, Peng Zhang4, and Stephan V. Roth1,5 — 1Deutsches Elektronen-Synchrotron, Hamburg, Germany — 2Technical University of Munich, Garching, Germany — 3Heinz Maier-Leibnitz Zentrum, Garching, Germany — 4Sun Yat-sen University, Guangzhou, China — 5KTH Royal Institute of Technology, Stockholm, Sweden
Plasmonic nanoparticles (NPs) are extensively used in various applications, in particular, SERS, which has been widely used in viral molecular detection. Virus Raman detection is mainly focused on the detection of viral nucleic acid and bases, but the detection of viral proteins is rare. In addition, there is limited knowledge about the interaction between virus proteins and core-shell NPs. Thus, understanding the relationship between the behaviour of viruses and the Raman signal can lead to the development of advanced NPs for virus detection. Here, spraying water-based cellulose nanofiber (CNF) and core-shell NPs solutions is used for the fabrication of sensors. In-situ small-angle grazing incidence X-ray scattering (GISAXS) technique is used to investigate the self-assembly of CNF and NPs during deposition. After the fabrication of sensors, some measurements will be taken, such as Raman, AFM and XPS et al. Moreover, the relationship between NPs, sensor performance, and virus behaviour is explored and constructed to lay solid foundations for the fabrication of sensors for virus detection.
Keywords: SERS; Cellulose nanofiber; Core-shell NPs; GISAXS