Aseefhali Bankapur

TL;DR: The richness of the measured spectrum illustrates that Raman studies of live cells in suspension are more informative than conventional micro-Raman studies where the cells are chemically bound to a glass cover slip.

TL;DR: The efficacy of a combined laser-induced breakdown spectroscopy (LIBS)–Raman system for the rapid identification and classification of post-consumer plastics is demonstrated and the potential limitations of any of these techniques for sample identification can be overcome by the complementarity of these two techniques.

TL;DR: There is significant enhancement in Raman peak intensities corresponding to SS and C-S stretching modes that are induced by oxidative stress, consistent with the formation of mixed disulphides between protein SH groups and low-molecular-mass thiols such as glutathione during oxidative damage to cells.

TL;DR: It is proposed that the interaction of Ag NPs with the cell surface induces damage brought about by alteration of intracellular pH caused by the blockage of the cell membrane transport.

TL;DR: The micro-Raman spectroscopic study reveals that hMSCs treated with silver nanoparticles undergo oxidative stress at doping levels in excess of 2 µg/ml, with results of a statistical analysis of Raman spectra suggesting that the induced stress becomes more dominant at nanoparticle concentration levels above 3 µG/ml.