Photochemical deposition of SERS active silver nanoparticles on silica gel and their application as catalysts for the reduction of aromatic nitro compounds

Phytosynthesis of eco-friendly silver nanoparticles and biological applications A novel concept in nanobiotechnology

“…However, in plants, the involvement of such constituents in NPs synthesis needs experimental proof. Isolated quercetin (natural plant pigment) has been used for AgNPs synthesis (Egorova and Revina, 2000;Kundu et al, 2004). Shankar et al (2003) reported that terpenoids in geranium leaf may be responsible for the synthesis of AgNPs.…”

Synthesis of Stable Dispersions of Water-Soluble and Sers-Active Silver Nanoparticles Using Pam

“…The mixture was kept at room temperature until no color change was observed, indicating that the reduction reaction had completed in the system. Following the synthesis methodology, Ag NPs were also prepared by various concentrations of silver acetate (1 Â 10 À3 M, 1 Â 10 À2 M, 2 Â 10 À2 M), the molar ratio of PAM to silver acetate (1:1, 20:1), and pH value (6,8,12) using the same method described above. The dependence of particle size on concentration of silver acetate, the molar ratio of PAM to silver acetate and pH value has also been studied in detail.…”

Surface-Enhanced Raman Spectroscopy

“…In addition, surface preparation and modification techniques (26)(27)(28)77) have also allowed for analyte selectivity. As such, investigators have applied SERS to many analytical systems in recent years, including anthrax detection (29,77), chemical warfare-stimulant detection (17), in vitro (6,30,79) and in vivo (78) glucose sensing, environmental monitoring (18), the monitoring of heterogeneous catalytic reactions (19), and explosive-agent detection (20). The need for new SERS-based sensing, detecting, and monitoring platforms has also driven new instrumental techniques such as the integration of SERS active substrates into fiber-optic assemblies (18).…”