Enzyme mediated extracellular synthesis of CdS nanoparticles by the fungus, Fusarium oxysporum
Enzyme mediated extracellular synthesis of CdS nanoparticles by the fungus, Fusarium oxysporum
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DOI：
10.1021/ja027296o
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发表时间：
2002-10-16
影响因子：
15
通讯作者：
Sastry, M
中科院分区：
文献类型：
--
作者：
Ahmad, A;Mukherjee, P;Sastry, M
通过CdSO4水溶液与尖孢镰刀菌（Fusarium oxysporum）的反应，证明了Q态CdS纳米颗粒的生物合成。纳米颗粒的形成是通过真菌释放硫酸还原酶，将硫酸根离子转化为硫化物离子，硫化物离子随后与水溶液中的Cd2+离子反应以产生高度稳定的CdS纳米颗粒。使用真菌阐明酶途径开辟了一个令人兴奋的可能性，开发一个合理的，生物合成策略的纳米材料在一系列的化学成分，这是目前不可能的。
The biosynthesis of Q-state CdS nanoparticles by reaction of aqueous CdSO4solution with the fungus,Fusarium oxysporum, is demonstrated. Nanoparticle formation proceeds by release of sulfate reductase enzymes by the fungus, conversion of sulfate ions to sulfide ions that subsequently react with aqueous Cd2+ions to yield highly stable CdS nanoparticles. Elucidation of an enzymatic pathway using fungi opens up the exciting possibility of developing a rational, biosynthesis strategy for nanomaterials over a range of chemical compositions which is currently not possible.