Original Paper

Biotechnology Letters

, Volume 28, Issue 14, pp 1135-1139

First online:

Biological Synthesis of Semiconductor Zinc Sulfide Nanoparticles by Immobilized Rhodobacter sphaeroides

  • Hong-Juan BaiAffiliated withCollege of Life Science and Technology, Shanxi UniversityDepartment of Environmental and Safety engineering, North University of China
  • , Zhao-Ming ZhangAffiliated withCollege of Life Science and Technology, Shanxi University Email author 
  • , Jun GongAffiliated withCollege of Life Science and Technology, Shanxi University

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A novel, clean biological transformation reaction by immobilized Rhodobacter sphaeroides has been developed for the synthesis of zinc sulfide (ZnS) nanoparticles with an average diameter of 8 nm. The nanoparticles were examined by X-ray diffraction, transmission electron microscopy, energy dispersive analyses of X-rays, UV–vis optical absorption and photoluminescence spectra. The average diameter of ZnS nanoparticles varied according to the culture time.

Key words

Biological synthesis Nanoparticles Rhodobacter sphaeroides Zinc sulfide