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| Fast and Controllable Synthesis of Three-dimensional Gold-nanoflowers and Their Analytical Applications |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:dopamine gold nanoflowers(AuNFs) morphology |
| Author | Institution |
| 杜雨晴，许佳丽，王健，黄承志 |
1.发光与实时分析教育部重点实验室，西南大学药学院;2.西南大学化学化工学院 |
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| Abstract: |
| A simple，controllable and feasible method to prepare gold nanoflowers(AuNFs) with a highly complex three-dimensional structure was developed by using dopamine(DA) as reducing agent and capping agent to react with gold chloride acid(HAuCl4) in 70 ℃ within 10 min.It was found that the freshness and concentration of dopamine solution were the key factors in controlling the morphology of AuNFs，while the concentration of 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) could be used to adjust the size of AuNFs，and the introduction of the common surfactants such as Triton X-100，Tween-80，CTAB could also affect the morphology of AuNFs.Because of the complex three-dimensional structure，AuNFs may have strong electric field at edges and corners，which makes AuNFs have potential applications in catalysis，photothermal therapy. |
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