All-Oxide Raman-Active Traps for Light and Matter: Probing Redox Homeostasis Model Reactions in Aqueous Environment

被引：46
作者：
Alessandri, Ivano [1 ,2 ]
Depero, L. E. [1 ,2 ]
机构：
[1] Univ Brescia, INSTM, I-25123 Brescia, Italy
[2] Univ Brescia, Chem Technol Lab, I-25123 Brescia, Italy
来源：
SMALL | 2014年 / 10卷 / 07期
关键词：
glutathione; (metal-free) SERS; core-shell materials; GLUTATHIONE; SCATTERING; GROWTH; SIZE; SERS;
D O I：
10.1002/smll.201303166
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码：1294 / 1298
页数：5
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