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Published on: August 18, 2012
All-oxide Raman-active traps for light and matter: probing redox homeostasis model reactions in aqueous environment
1INSTM and Chemistry for Technologies Lab, University of Brescia, via Branze 38, 25123, Brescia, ITALY.
Abstract:
Core-shell colloidal crystals can act as very efficient traps for light and analytes. Here it is shown that Raman-active probes can be achieved using SiO2-TiO2 core-shell beads. These systems are successfully tested in monitoring of glutathione redox cycle at physiological concentration in aqueous environment, without need of any interfering enhancers. These materials represent a promising alternative to conventional, metal-based SERS probes for investigating chemical and biochemical reactions under real working conditions.
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