HOME >> BIOLOGY >> NEWS
Ten Years of Progress For Superfund Basic Research Program

are not easily degraded in nature. They're called PAHs or poly- aromatic hydrocarbons.

"They're a big concern," said Kinkle. "They're often potent carcinogens. They bind to the DNA which can affect gene regulation."

Both bacterial strains were originally isolated from Superfund sites, specifically polluted soils located at coal gasification plants in Illinois. However, Kinkle says a great deal of work is needed to find the best way to use these microbes in the field where they will have to compete with other naturally occurring organisms.

Environmental engineering professor Paul Bishop is using other Sphingomonas strains to degrade another common pollutant, azo dyes. "The dyes themselves are not particularly harmful," said Bishop, "but when they're ingested, they're broken down by the bacteria inside you into carcinogenic materials."

Again, the main problem is that azo dyes are not readily degraded in nature. Bishop has designed bioreactors in his laboratory which use thin biofilms of Sphingomonas and other microbes to break down the dyes. He believes his novel two-step reactor will be much more effective than previous designs which required two separate reactors. It alternates between anaerobic (no oxygen) and aerobic (with oxygen) degradation to chew up the dyes more completely.

Bishop's group has also designed tiny probes which can measure the concentration of oxygen, hydrogen sulfide and other compounds in the biofilms. This is important, because some of these compounds can speed up degradation while others will kill off the organisms needed to degrade the azo dyes. "We can now probe the black box of the biofilm," said Loper, noting the significance of Bishop's work.

Analytical chemist Joe Caruso, Dean of the College of Arts and Sciences, is working on a separate project which should make it easier for government regulators to identify the most dangerous pollutants. Caruso is developing ultra-trace methods to detect metal pollutants including t
'"/>

Contact: Chris Curran
chris.curran@uc.edu
513-556-1806
University of Cincinnati
24-Feb-1997


Page: 1 2 3 4

Related biology news :

1. Years of research, thought lead geologist to propose new supercontinent Columbia
2. Fossilized Emu Eggshells Give Clues To 65,000 Years Of Vegetation And Climate Changes In Australia
3. Earliest Modern Tree Lived 360-345 Million Years Ago
4. For First Time In 40 Years National Jewish Researchers Report Chronic Beryllium Disease Caused By Extremely Low Levels Of Exposure
5. TB Is Still Rife Fifty Years After The Study Which Found A Cure
6. Possible Human Ancestors In Spain 780,000 Years Ago
7. Long Lava Flows May Have Taken Years, Causing Global Cooling And Extinctions
8. Fossil Evidence Of Worms Over One Billion Years Old Reported In Science
9. 14,000 Years Of Atmospheric Lead Emissions Recorded In Swiss Peat Bog As Published In Science Magazine
10. Native Fish Found In U.S. Lake Ontario For First Time In 50 Years
11. Long-Term Study Looks At HIV Positive Men With Few Signs Of Disease Progression, 10-18 Years After Seroconversion

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/23/2017)... and ITHACA, N.Y. , June 23, ... University, a leader in dairy research, today announced a ... to help reduce the chances that the global milk ... of this dairy project, Cornell University has become the ... the Food Supply Chain, a food safety initiative that ...
(Date:5/23/2017)...  Hunova, the first robotic gym for the rehabilitation and functional motor ... Genoa, Italy . The first 30 robots will be ... USA . The technology was developed and patented at the ... spin-off Movendo Technology thanks to a 10 million euro investment from entrepreneur ... ...
(Date:5/16/2017)... , May 16, 2017   Bridge ... health organizations, and MD EMR Systems , ... development partner for GE, have established a partnership ... Portal product and the GE Centricity™ products, including ... EMR. These new integrations will ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... The Blavatnik Family ... and six Finalists of the 2017 Blavatnik Regional Awards for Young Scientists. ... and administered by the New York Academy of Sciences to honor the excellence ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... States multicenter, prospective clinical study that demonstrates the accuracy of the FebriDx® ... identifying clinically significant acute bacterial and viral respiratory tract infections by testing ...
(Date:10/12/2017)... ... , ... AMRI, a global contract research, development and manufacturing ... and quality of life, will now be offering its impurity solutions as a ... requirements for all new drug products, including the finalization of ICH M7 earlier ...
(Date:10/11/2017)... ... October 11, 2017 , ... At its national board meeting ... I. Sheikh, the co-founder, CEO and chief research scientist of Minnesota-based Advanced Space ... membership in ARCS Alumni Hall of Fame . ASTER Labs is a ...
Breaking Biology Technology:
Cached News: