HOME >> BIOLOGY >> NEWS
In nature, proteins sweep up nanoparticles

BERKELEY, CA Heres a pollution-control tip from nature: Deep inside a flooded mine in Wisconsin, scientists from several institutions including the U.S. Department of Energys Lawrence Berkeley National Laboratory (Berkeley Lab) have discovered a world in which bacteria emit proteins that sweep up metal nanoparticles into immobile clumps. Their finding may lead to innovative ways to remediate subsurface metal toxins.

The research, which appears in the June 15, 2007 issue of the journal Science, reveals that the proteins travel far from the microbes that produce them, and then amass metal nanoparticles into piles that are too large to be swept away by underground currents. Precisely how and why the bacteria undertake this bit of housecleaning remains a mystery, but it suggests that proteins could play a key role in bioremediation strategies designed to trap harmful metals such as arsenic, lead, uranium, and plutonium.

We have found, in the environment, that cells release proteins and polypeptides which promote the aggregation of nanoparticulate metals, says John Moreau, lead author of the study and a former PhD student in UC Berkeleys Department of Earth and Planetary Sciences. The intriguing discovery that biomolecules may shape nanoparticles into larger aggregates, which reduces the nanoparticles mobility, could have significant implications for bioremediation.

Moreau conducted the research under the guidance of Jill Banfield, a principal investigator in the Geochemistry Department of Berkeley Labs Earth Sciences Division, and a UC Berkeley professor in the Department of Earth and Planetary Sciences and in the Department of Environmental Science, Policy and Management. Other scientists involved in the research include Michael Martin and Benjamin Gilbert of Berkeley Lab, and Peter Weber and Ian Hutcheon of Lawrence Livermore National Laboratory.

The research team analyzed a biofilm rich in zinc sulfide that was collected fr
'"/>

Contact: Dan Krotz
dakrotz@lbl.gov
510-486-4019
DOE/Lawrence Berkeley National Laboratory
14-Jun-2007


Page: 1 2 3 4

Related biology news :

1. Phenotype is influenced by nature, nurture and noise
2. UCF research links proteins, stem cells and potential Alzheimers treatment
3. Teamwork between 2 key proteins necessary for normal development and regulation of red blood cells
4. Unlocking proteins from their cellular shell
5. Call for EU to launch major project to map out all our proteins
6. MIT IDs link between brain tumor proteins
7. Protein pulling -- Learning how proteins fold by pulling them apart
8. Measuring the unseeable: Penn researchers probe proteins dark energy
9. New use for a cell toxin found to inhibit survival proteins in cancer cells
10. Pairing nanoparticles with proteins
11. Targeting key proteins of carcinogenesis

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


(Date:7/18/2020)... , ... July 17, 2020 , ... Commercial launch readiness ... pharma’s ability to discover a COVID cure or vaccine, the global economic downturn will ... price pressure is not going away and capturing full value from every product launch ...
(Date:7/2/2020)... ... July 02, 2020 , ... ... B.V. (MBS) has announced a publication detailing the use of its revolutionary ... polymerase chain reaction (RT-PCR) in 16 minutes. The article, titled "Ultra-fast one-step ...
(Date:6/25/2020)... ... June 24, 2020 , ... ... software and software-driven clinical data services that accelerate drug development, is collaborating with ... an XPO1 inhibitor, in hospitalized patients with severe COVID-19. This is the first ...
Breaking Biology News(10 mins):
(Date:7/18/2020)... , ... July 16, 2020 , ... ... to aid in the early detection and prevention of high-burden diseases, and Centric ... US-based hospitals and healthcare organizations to utilize existing data in order to identify ...
(Date:7/10/2020)... ... July 09, 2020 , ... ... that Massachusetts Institute of Technology (MIT) has expanded the company’s exclusive license ... to move into the point-of-care diagnostic market, focusing initially on the SARS-CoV-2 ...
(Date:7/7/2020)... ... July 06, 2020 , ... R3 International is now offering stem ... 200 million stem cells. Depending on the patient's condition, treatment may be offered IV, ... die having some form of Alzheimers dementia, and the incidence continues to increase as ...
(Date:7/1/2020)... ... June 29, 2020 , ... ... competitively procured purchasing contracts to its membership, recently named BioFit Engineered Products ... with the opportunity to purchase ergonomic seating, cafeteria tables, book trucks and carts ...
Breaking Biology Technology:
Cached News: