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Synthesis of multi-branched gold nanoparticles by reduction of tetrachloroauric acid with Tris base, and their application to SERS and cellular imaging
| Content Provider | Semantic Scholar |
|---|---|
| Author | Luo, Zhihui Chen, Kun Han, Heyou Zou, Mingqiang |
| Copyright Year | 2011 |
| Abstract | AbstractWe show that tris base (TB), a widely used buffer substance, can act as a reducing agent to synthesize multi-branched gold nanoparticles (mb-AuNPs) from tetrachloroauric acid in a one-step process. The method is simple, fast, and inexpensive and produces mb-AuNPs that are virtually monodisperse, have a size of about 90 nm and typically >6 branches. Their UV-vis absorption peaks can be fine-tuned from the visible to the near-infrared (NIR) region by controlling the concentration of TB. The mb-AuNPs represent an efficient substrate for surface-enhanced Raman scattering (SERS), with an enhancement factor of 1.2 × 105. They were applied as substrates for SERS-based imaging of kidney cells. FigureMulti-branched gold nanoparticles were prepared using tris base as a novel reducing agent that works in the absence of seeds and surfactants. The resulting ss-Au NPs are SERS-active and also were applied to cell imaging. |
| Starting Page | 55 |
| Ending Page | 61 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s00604-011-0649-5 |
| Volume Number | 175 |
| Alternate Webpage(s) | http://hyhan.hzau.edu.cn/wp-content/uploads/2014/04/39-MICROCHIMICA-ACTA.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s00604-011-0649-5 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
