Search results for "Substrats de nanoparticules"

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Study of the dynamics of biomolecules by high speed atomic force microscopy and surface enhanced Raman spectroscopy

2015

This thesis focuses on the coupling of High–Speed Atomic Force Microscopy (HS-AFM) and Surface Enhanced Raman Spectroscopy (SERS) for biomolecule analysis. We have designed a fabrication protocol to manufacture “SERS-active” substrates. The efficacy of gold, silver and gold-silver bimetallic crystalline nanoparticle substrates were evaluated. We have investigated the impact of optical and morphological features of the substrates on Raman signal intensity by analyzing well-known samples such as bipyridine ethylene and methylene blue molecules. We took an interest in three distinct biological problematics with HS-AFM and SERS analyses. First, we have detected the chemical signature of cytochr…

Tip–Enhanced Raman Spectroscopy (TERS)Surface Enhanced Raman Spectroscopy (SERS)CellsProteinsDetergent resistant membrane domains (DRMs)ProtéinesSpectroscopie Raman exaltée de surface (SERS)Nanoparticle substratesNoroviruses (NoVs)Substrats de nanoparticulesHigh–Speed Atomic Force Microscopy (HS-AFM)Microscopie à force atomique haute-vitesse (HS-AFM)Diffusion Raman exaltée par effet de pointe (TERS)Détergent résistant membrane domaines (DRMs)Plasmons de Surface Localisé (LSP)Cellules[PHYS.PHYS] Physics [physics]/Physics [physics]Localized Surface Plasmons (LSP)
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