丝状蓝细菌从硝酸银（I）络合物生物合成银纳米颗粒。
Biosynthesis of silver nanoparticles by filamentous cyanobacteria from a silver(I) nitrate complex.
作者信息
Lengke Maggy F, Fleet Michael E, Southam Gordon
机构信息
Department of Earth Sciences, University of Western Ontario, London, Ontario N6A 5B7, Canada.
出版信息
Langmuir. 2007 Feb 27;23(5):2694-9. doi: 10.1021/la0613124.
The biosynthesis of silver nanoparticles has been successfully conducted using Plectonema boryanum UTEX 485, a filamentous cyanobacterium, reacted with aqueous AgNO3 solutions (approximately 560 mg/L Ag) at 25-100 degrees C for up to 28 days. The interaction of cyanobacteria with aqueous AgNO3 promoted the precipitation of spherical silver nanoparticles and octahedral (111) silver platelets (of up to 200 nm) in solutions. The mechanisms of silver nanoparticles via cyanobacteria could involve metabolic processes from the utilization of nitrate at 25 degrees C and also organics released from the dead cyanobacteria at 25-100 degrees C.
利用丝状蓝细菌鞘丝藻UTEX 485，在25至100摄氏度下与硝酸银水溶液（约560 mg/L银）反应长达28天，已成功实现银纳米颗粒的生物合成。蓝细菌与硝酸银水溶液的相互作用促进了溶液中球形银纳米颗粒和八面体（111）银片（最大可达200纳米）的沉淀。通过蓝细菌生成银纳米颗粒的机制可能涉及25摄氏度下硝酸盐利用的代谢过程，以及25至100摄氏度下死蓝细菌释放的有机物。
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