Nickel and platinum group metal nanoparticle production by Desulfovibrio alaskensis G20
Nickel and platinum group metal nanoparticle production by Desulfovibrio alaskensis G20
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DOI：
10.1016/j.nbt.2015.02.002
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发表时间：
2015-12-25
影响因子：
5.4
通讯作者：
Horsfall, L. E.
中科院分区：
文献类型：
--
作者：
Capeness, M. J.;Edmundson, M. C.;Horsfall, L. E.
阿拉斯加脱硫弧菌G20是一种厌氧硫酸盐还原菌。虽然脱硫弧菌物种先前已被证明可以将钯和铂还原到零状态，在此过程中形成纳米颗粒;阿拉斯加人能够形成这些纳米颗粒。金属纳米颗粒具有使其成为许多工业和医疗应用的理想选择的特性，例如它们的尺寸和形状使它们比相同金属的块状形式具有更高的催化活性。特别是铂族金属的纳米颗粒因其催化能力而受到高度追捧，本文中我们报道了通过D. alaskensis和溶剂化镍离子向纳米颗粒形式的生物转化。
Desulfovibrio alaskensis G20 is an anaerobic sulfate reducing bacteria. While Desulfovibrio species have previously been shown to reduce palladium and platinum to the zero-state, forming nanoparticles in the process; there have been no reports that D. alaskensis is able to form these nanoparticles. Metal nanoparticles have properties that make them ideal for use in many industrial and medical applications, such as their size and shape giving them higher catalytic activity than the bulk form of the same metal. Nanoparticles of the platinum group metals in particular are highly sought after for their catalytic ability and herein we report the formation of both palladium and platinum nanoparticles by D. alaskensis and the biotransformation of solvated nickel ions to nanoparticle form.