2013
DOI: 10.1016/j.colsurfa.2013.01.036
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Systematic preparation of colloidal silver nanoparticles for effective SERS substrates

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Cited by 12 publications
(5 citation statements)
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“…Preparation and characteristics of silver nanoparticles as the most effective SERS substrates have been previously described in detail. 18 Briefly, 30 mL of 2 × 10 −3 M NaBH 4 solution at ice temperature was prepared and a AgNO 3 solution (8 × 10 −3 M) at ambient temperature was added dropwise via a dispenser to the prepared NaBH 4 solution with stirring at 1500 rpm. As reduction in the solution proceeded, its color turned yellow, and afterward, the solution became turbid with precipitates.…”
Section: ■ Introductionmentioning
confidence: 99%
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“…Preparation and characteristics of silver nanoparticles as the most effective SERS substrates have been previously described in detail. 18 Briefly, 30 mL of 2 × 10 −3 M NaBH 4 solution at ice temperature was prepared and a AgNO 3 solution (8 × 10 −3 M) at ambient temperature was added dropwise via a dispenser to the prepared NaBH 4 solution with stirring at 1500 rpm. As reduction in the solution proceeded, its color turned yellow, and afterward, the solution became turbid with precipitates.…”
Section: ■ Introductionmentioning
confidence: 99%
“…This so-called surface-enhanced Raman scattering (SERS) spectroscopy has become one of the most reliable tools for probing the structures of molecules adsorbed on metal surfaces. The SERS enhancement has generally been known to arise from local electromagnetic field enhancement by the laser around the roughened metal surface due to surface plasmon resonance and/or chemical enhancements such as charge transfer between the metal and the adsorbed molecules. , Recently, surfaces composed of two or three aggregated Ag nanoparticles, approximately 31 nm in size, have been found to be the most effective SERS substrate to investigate the adsorption behavior of molecules and the SERS mechanism . However, the shapes and sizes of various metal nanoparticles as effective SERS substrates are still under study.…”
Section: Introductionmentioning
confidence: 99%
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“…22 Briefly, 30 mL of 2 × 10 −3 M NaBH 4 solution at ice temperature was prepared with stirring at 1500 rpm and 8 × 10 −3 M AgNO 3 solution at ambient temperature was added drop by drop with a dispenser. As reduction in solution proceeds, its color turned yellow and afterwards the solution became turbid with precipitates.…”
Section: Methodsmentioning
confidence: 99%
“…The vivid colors of colloidal Au, Ag, and Cu metal particles are caused by their surface plasmon modes, so these are widely used as SERS substrates . Silver colloidal nanoparticles are highly active, and Ag salts are much less expensive than Au ones, which is an important consideration when designing any teaching experiment.…”
mentioning
confidence: 99%