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| 酵母菌还原制备纳米金颗粒 |
| Biological Synthesis of Gold Nanoparticles by Saccharomyces |
| Received:July 04, 2015 |
| DOI： |
| 中文关键词: 纳米金 酵母菌 还原 生物合成 贵金属 |
| 英文关键词: gold nanoparticles saccharomyces reduction biological synthesis precious metal |
| 基金项目:国家自然科学基金(51304047)、教育部博士点新教师基金(20130042120040)、辽宁省博士启动基金(20131037)。 |
| Author Name | Affiliation | E-mail | | CHEN Guobao | School of Metallurgy, Northeastern University, Shenyang 110819, China | chengb@smm.neu.edu.cn | | YANG Hongying | School of Metallurgy, Northeastern University, Shenyang 110819, China | | | GOU Dehai | School of Metallurgy, Northeastern University, Shenyang 110819, China | | | TONG Linlin | School of Metallurgy, Northeastern University, Shenyang 110819, China | |
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| 中文摘要: |
| 纳米金颗粒因其独特的光学、电学和催化性质而被广泛应用于生物传感器、肿瘤治疗、重金属分析、化工催化等领域。生物制备方法具有良好的生物相容性、反应条件温和、绿色且可持续发展等优点。本文利用酵母菌制备了纳米金颗粒，采用UV-Vis研究了反应条件，FESEM、EDS及TEM表征了材料的形貌和成分，并通过FT-IR探究酵母菌还原金颗粒的机制。结果表明，当反应时间为60 min、贵金属前驱体浓度为1.0 g/L时，酵母菌还原所得的金纳米颗粒粒径约为8.69 nm且大小比较均一。红外分析结果表明酵母菌在还原贵金属前驱体时，多羟基化合物、蛋白质类物质等起还原作用。 |
| 英文摘要: |
| Gold nanoparticles have been widely applied in many fields, such as biological sensors, tumour treatments, analysis of heavy metals and catalytic reactions, due to their unique optional, electronic and catalytic properties. The biological synthesis method has many advantages, such as biocompatibility of products, mild reaction conditions, more green and sustainable. Gold nanoparticles were prepared by saccharomyces in this paper. The UV-Vis was used to study the reaction conditions, FESEM, EDS and TEM have been employed to determine the shape and content of gold nanoparticles. FT-IR was used to analysis the change of saccharomyces before and after reduction. It shows that when the reaction time was 60 min, the concentration of precursor was 1.0 g/L, the obtained gold particles were uniform, and their mean size was 8.69 nm. It is inferred that multiple-hydroxyl compound, proteins were involved in the reduction reaction from FT-IR results. |
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