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"Micro-Raman Spectroscopy" introduces readers to the theory and application of Raman microscopy. Raman microscopy is used to study the chemical signature of samples with little preperation in a non-destructive manner. An easy to use technique with ever increasing technological advances, Micro-Raman has significant application for researchers in the fields of materials science, medicine, pharmaceuticals, and chemistry.

Raman spectroscopy. --- Spectroscopie Raman.

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This book explores one of the most effective physical methods for studying chemical compounds, and provides a treatment of the theory of Raman scattering by molecules and crystals, a description of molecular and crystalline vibrations and an analysis of their symmetry. It also details various effects of phonon absorption and scattering in crystals, characteristics of vibrational bands (wavenumber, bandwidth and intensity), nonlinear and anharmonic effects in vibrational spectra, and a description of Raman spectroscopic techniques. The book will appeal to students and scientists whose interests lie in the field of research of chemical, mineralogical, and biological systems.

Raman spectroscopy. --- Spectroscopie Raman

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Quite a few excellent books about vibrational spectroscopy have already been published. So why write a new one ? The last years have seen the birth of new techniques and, first of all, a wealth of new applications. Therefore, a lot of new users need an introduction to these techniques and applications, but, if they are new to vibrational spectroscopy, an introduction to the parent techniques as well. Vibrational spectroscopies can detect and analyze vibrations in molecules. Mainly two different forms are used today: Infrared and Raman spectroscopy. Vibrational spectroscopy is used by chemists to characterize their substances. If the spectra of substances are known, analytical chemists can use them to analyze a mixture of chemicals. Samples may be analyzed even with spatial resolution, on the microscopic as well as on the macroscopic scale. "Infrared and Raman Spectroscopy" is intended for researchers or lecturers in Chemistry, Physics, Materials Science and Life Sciences, who are interested in the composition and properties of their samples. It describes how vibrational spectroscopy will enable them to examine thin layers, surfaces and interfaces, and also improve their knowledge about the properties of composites. Special chapters introduce VCD, ROA, and TERS. The book can serve as a short introduction to vibrational spectroscopy too, so that students at the first graduate level will benefit from it as well.

Infrared spectroscopy. --- Raman spectroscopy. --- Spectroscopie infrarouge. --- Spectroscopie Raman. --- Chemistry, Organic. --- Analytics. --- Materials Sciences. --- Spectroscopy.

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Inclusions fluides. --- Spectroscopie Raman --- Pétrogenèse. --- Fluid inclusions --- Raman spectroscopy. --- Petrogenesis. --- Analysis.

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La spectroscopie Raman exaltée de surface (SERS) est une technique permettant des analyses rapides, sensibles et spécifiques particulièrement bien adaptée au domaine biomédical. Dans ce contexte, une perspective intéressante est l’utilisation de sondes SERS (combinaison d’un substrat nanostructuré et d’une molécule active en Raman) fonctionnalisées par diverses molécules, permettant le ciblage spécifique de macromolécules biologiques (antigènes, enzymes, ADN, récepteur membranaire, etc). Nous avons développé des sondes SERS utilisant des nanoparticules monométalliques d’or ainsi que des nanoparticules bimétalliques Au@Ag et nous avons étudié leurs performances en présence de différentes molécules actives. Les nanoparticules bimétalliques ont été encapsulées par un polymère afin de leur offrir des possibilités de fonctionnalisation ultérieures. Ces sondes SERS ont été fonctionnalisées et utilisées dans deux applications : la détection d’une enzyme sur support immunochromatographique par fonctionnalisation des sondes avec un anticorps, ainsi que la discrimination à l’aide de l’imagerie spectrale Raman de deux types de cellules cancéreuses par fonctionnalisation des sondes avec l’acide folique.

Chimie analytique --- spectroscopie Raman --- SERS --- imagerie Raman --- immunochromatographie --- cellules cancéreuses --- Physique, chimie, mathématiques & sciences de la terre > Chimie