Evidence of the production of silver nanoparticles via pretreatment of Phoma sp.3.2883 with silver nitrate
Evidence of the production of silver nanoparticles via pretreatment of Phoma sp.3.2883 with silver nitrate
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DOI：
10.1046/j.1472-765x.2003.01348.x
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发表时间：
2003-01-01
影响因子：
2.4
通讯作者：
Ma, XX
中科院分区：
文献类型：
--
作者：
Chen, JC;Lin, ZH;Ma, XX
目的：目的是证明银颗粒的大小由丝状真菌茎点霉sp.3.2883通过吸附和积累，并确认，这银是在一个还原states.Methods和结果：菌丝体冷冻干燥，然后振荡培养在硝酸银溶液。通过原子吸收光谱仪（AAS）分析发现，每克干菌丝体产生高达13.4 mg的银。在透射电镜下观察和测量了吸附在菌丝体上的银颗粒，其大小估计为71.06 ± 3.46 nm。结论：Phoma sp3.2883冷冻菌丝体具有生产纳米银的潜力，研究的意义和影响：纳米银可以作为重要的催化剂应用于石油工业，也可以作为药物应用于人类医学领域。真菌Phoma sp3.2883是一种潜在的生物吸附剂，可用于生产这些银纳米颗粒，也可用于废物解毒和银回收计划。
Aims: The objective was to demonstrate the size of silver particles produced by the filamentous fungus Phoma sp.3.2883 via adsorption and accumulation, and to confirm that this silver was in a reduced state.Methods and Results: Mycelium was freeze-dried and then shake-cultured in a silver nitrate solution. It was found that up to 13.4 mg of silver was produced per gram of dry mycelium via atomic absorption spectrometer (AAS) analysis. The silver particles adsorbed on the mycelium were observed and measured under transmission electron microscope and their estimated size was 71.06 +/- 3.46 nm. Further examination of the particles via X-ray photoelectron spectroscope confirmed that the adsorbed silver particle had been reduced.Conclusion: The frozen mycelium of Phoma sp3.2883 has the potential for use in silver nanoparticle production.Significance and Impact of the Study: Silver nanoparticles could be used in the oil industry as an important catalyst and in the field of human medicine as a bactericide. The fungus Phoma sp3.2883 is a potential biosorbent that could be used for the production of these silver nanoparticles, and may also be useful in waste detoxification and in silver recovery programmes.