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Title: Microbially-mediated method for synthesis of non-oxide semiconductor nanoparticles

The invention is directed to a method for producing non-oxide semiconductor nanoparticles, the method comprising: (a) subjecting a combination of reaction components to conditions conducive to microbially-mediated formation of non-oxide semiconductor nanoparticles, wherein said combination of reaction components comprises i) anaerobic microbes, ii) a culture medium suitable for sustaining said anaerobic microbes, iii) a metal component comprising at least one type of metal ion, iv) a non-metal component containing at least one non-metal selected from the group consisting of S, Se, Te, and As, and v) one or more electron donors that provide donatable electrons to said anaerobic microbes during consumption of the electron donor by said anaerobic microbes; and (b) isolating said non-oxide semiconductor nanoparticles, which contain at least one of said metal ions and at least one of said non-metals. The invention is also directed to non-oxide semiconductor nanoparticle compositions produced as above and having distinctive properties.
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Issue Date:
OSTI Identifier:
UT-Battelle, LLC (Oak Ridge, TN); University of Tennessee Research Foundation (Knoxville, TN) ORNL
Patent Number(s):
Application Number:
Contract Number:
Research Org:
ORNL (Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States))
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

Mixed oxide nanoparticles and method of making
patent, September 2002

Fermentative process for making inorganic nanoparticles
patent, June 2006

Mixed oxide nanoparticles and apparatus for making same
patent-application, December 2002

Fermentative process for making inorganic nanoparticles
patent-application, January 2006

Biological production method of photoconductive arsenic-sulfide (As-S) nanotube and strain used for the same
patent-application, June 2009

Microbial-mediated method for metal oxide nanoparticle formation
patent-application, July 2010

Microbially-mediated method for synthesis of non-oxide semiconductor nanoparticles
patent-application, August 2010

Microbially-mediated method for synthesis of non-oxide semiconductor nanoparticles
patent-application, December 2010

Microbial synthesis of semiconductor lead sulfide nanoparticles using immobilized Rhodobacter sphaeroides
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