The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Jul. 07, 2017
Ut-battelle, Llc, Oak Ridge, TN (US);
U.s. Geological Survey, Reston, VA (US);
Ji Won Moon, Oak Ridge, TN (US);
Tommy Joe Phelps, Knoxville, TN (US);
Ronald Oremland, Brisbane, CA (US);
David E. Graham, Knoxville, TN (US);
Ilia N. Ivanov, Knoxville, TN (US);
Christopher B. Jacobs, Knoxville, TN (US);
Gyoung Gug Jang, Knoxville, TN (US);
Michelle K. Kidder, Clinton, TN (US);
Pooran C. Joshi, Knoxville, TN (US);
Beth L. Armstrong, Clinton, TN (US);
UT-Battelle, LLC, Oak Ridge, TN (US);
U.S. Geological Survey, Reston, VA (US);
Abstract
A method for producing metal chalcogenide nanoparticles, the method comprising: (i) producing hydrogen chalcogenide-containing vapor from a microbial source, wherein said microbial source comprises: (a) chalcogen-reducing microbes capable of producing hydrogen chalcogenide vapor from a chalcogen-containing source; (b) a culture medium suitable for sustaining said chalcogen-reducing microbes; (c) at least one chalcogen-containing compound that can be converted to hydrogen chalcogenide vapor by said chalcogen-reducing microbes; and (d) at least one nutritive compound that provides donatable electrons to said chalcogen-reducing microbes during consumption of the nutritive compound by said chalcogen-reducing microbes; and (ii) directing said hydrogen chalcogenide-containing vapor into a metal-containing solution comprising a metal salt dissolved in a solvent to produce metal chalcogenide nanoparticles in said solution, wherein said chalcogen is sulfur or selenium, and said chalcogenide is sulfide or selenide, respectively. The invention is also directed to metal chalcogenide nanoparticle compositions produced as above and having distinctive properties.