Journal
CHEMISTRY OF MATERIALS
Volume 26, Issue 5, Pages 1794-1798Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm403109k
Keywords
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Funding
- 973 Projects [2010CB933903, 2014CB744501]
- NSFC [61271056, 21205036, 61301039]
- Hunan Provincial Natural Science Foundation of China [12JJ4049, 13JJ4091]
- Scientific Research Fund of Hunan Provincial Education Department [13A003]
- NSF-Center for Research Excellence in Science and Technology [NSF HRD-0932421]
- Direct For Education and Human Resources
- Division Of Human Resource Development [0932421] Funding Source: National Science Foundation
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Although gold nanorods (GNRs) have been prepared with a wide range of methods for their uses as novel diagnostic and therapeutic agents, the synthesis of monodispersed GNRs with high yields and size tunability still requires further improvements. We report on a simple one-pot method for preparing highly monodispersed GNRs using phenols (e.g., hydroquinone, 1,2,3-trihydroxybenzene, and 1,2,4-trihydroxybenzene) as the reducing agent and NaBH4 as the initiating reactant. Fine-tuning of the LSPR peak position of phenols-reduced GNRs from 550 to 1150 nm is accomplished by regulating the silver ion concentrations. The size of GNRs produced via phenols reduction can also be controlled by changing the NaBH4 concentration. By systematically optimizing the concentrations of the reagents involved in the one-pot synthesis of GNRs, the yield (in many cases exceeding 90%) is significantly higher than that prepared with the commonly used reductant (e.g., ascorbic acid). The improved efficiency and controllability cut down the cost and time involved in GNRs production.
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