title: Biosynthesis and structural characteristics of selenium nanoparticles by Pseudomonas alcaliphila.
abstract: In this paper, we report that selenium (Se) nanoparticles were first biosynthesized by Pseudomonas alcaliphila with a simple and eco-friendly biological method. The structural characteristics of Se nanoparticles were examined. The results showed that spherical particles appeared with diameters ranging from 50 to 500 nm during incubation and Se nanorods were present after incubating in an aqueous reaction solution for 24h. However, the formation of Se nanorods was interrupted when 5% (w/v) poly(vinyl pyrrolidone) (PVP) was added in the aqueous reaction solution, obtaining stable spherical Se nanoparticles with a diameter of about 200 nm.
authors.affiliation: College of Life Science, Sichuan University, Chengdu, PR China.
authors.forename: Wenjie
authors.initials: W
authors.lastname: Zhang
authors.forename: Zhijuan
authors.initials: Z
authors.lastname: Chen
authors.forename: Hao
authors.initials: H
authors.lastname: Liu
authors.forename: Liang
authors.initials: L
authors.lastname: Zhang
authors.forename: Ping
authors.initials: P
authors.lastname: Gao
authors.forename: Daping
authors.initials: D
authors.lastname: Li
mesh_terms: D053758:Nanoparticles / Q000737:chemistry*; D011205:Povidone / Q000737:chemistry; D011549:Pseudomonas / Q000378:metabolism*; D012643:Selenium / Q000737:chemistry*
chemical_list: D011205:Povidone; D012643:Selenium