1.
Appl Spectrosc
; 58(1): 33-40, 2004 Jan.
Artigo
em Inglês
| MEDLINE
| ID: mdl-14727718
RESUMO
Treatment of bacteria with silver yields intense and highly specific surface-enhanced Raman spectroscopy (SERS) spectra from various cellular chemical components located in the vicinity of the silver colloids. In particular, we demonstrate an extreme sensitivity to flavin components associated with the cell envelope and to their state of oxidation. Different spectra, possibly associated with DNA, carboxylates, and perhaps phosphates, are obtained from the soluble interior fraction of the cell.
Assuntos
Flavinas/análise , Bactérias Gram-Negativas/química , Bactérias Gram-Positivas/química , Prata/química , Análise Espectral Raman/métodos , Frações Subcelulares/química , Ressonância de Plasmônio de Superfície/métodos , Membrana Celular/química , Oxirredução , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
2.
Opt Lett
; 13(10): 934-6, 1988 Oct 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19746084
RESUMO
We suggest and demonstrate a novel method for studying the thickness of thin liquid layers. The method is based on ray-deflection analysis of a beam reflected from the edge of the layer and on studying the topography of the layer.
