Mercury capture into biogenic amorphous selenium nanospheres produced by mercury resistant Shewanella putrefaciens 200

Shenghua Jiang; Cuong Tu Ho; Ji-Hoon Lee; Hieu Van Duong; Seunghee Han; Hor-Gil Hur

doi:10.1016/j.chemosphere.2011.12.083

Mercury capture into biogenic amorphous selenium nanospheres produced by mercury resistant Shewanella putrefaciens 200

Chemosphere. 2012 May;87(6):621-4. doi: 10.1016/j.chemosphere.2011.12.083. Epub 2012 Mar 2.

Authors

Shenghua Jiang¹, Cuong Tu Ho, Ji-Hoon Lee, Hieu Van Duong, Seunghee Han, Hor-Gil Hur

Affiliation

¹ School of Environmental Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan Gwagiro, Buk-gu, Gwangju 500-712, Republic of Korea.

PMID: 22386108
DOI: 10.1016/j.chemosphere.2011.12.083

Abstract

Shewanella putrefaciens 200, resistant to high concentration of Hg(II), was selected for co-removal of mercury and selenium from aqueous medium. Biogenic Hg(0) reduced from Hg(II) by S. putrefaciens 200 was captured into extracellular amorphous selenium nanospheres, resulting in the formation of stable HgSe nanoparticles. This bacterial reduction could be a new strategy for mercury removal from aquatic environments without secondary pollution of mercury methylation or Hg(0) volatilization.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biodegradation, Environmental
Hazardous Substances / metabolism*
Mercury / chemistry*
Mercury / metabolism
Nanospheres / chemistry*
Selenium / chemistry*
Selenium / metabolism
Shewanella putrefaciens / metabolism*

Substances

Hazardous Substances
Mercury
Selenium