Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

  • Infrared Spectromicroscopy Technology Identifies Bacteria That Eat Toxic Waste

Photonics Spectra
Jan 2000
Chemical and biological mechanisms had been suggested to explain the transformation of hexavalent chromium, a toxic industrial discharge, into a less dangerous trivalent form. Now scientists at the Lawrence Berkeley National Laboratory in Berkeley, Calif., have used Fourier transform IR spectromicroscopy to identify the reduction agent as Arthrobacter oxydans. This bacterium, which inhabits basalt, could help clean waste sites.

The lab's Advanced Light Source provided the light for the study, which monitored hexavalent chromium in the presence and absence of the bacteria. The researchers noted that the synchrotron's light is 200 times brighter at a 10-µm resolution than conventional sources, allowing them to examine the samples at low concentrations and in real time.

Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!