HOME >> BIOLOGY >> NEWS
UCLA engineers develop revolutionary nanotech water desalination membrane

Researchers at the UCLA Henry Samueli School of Engineering and Applied Science today announced they have developed a new reverse osmosis (RO) membrane that promises to reduce the cost of seawater desalination and wastewater reclamation.

Reverse osmosis desalination uses extremely high pressure to force saline or polluted waters through the pores of a semi-permeable membrane. Water molecules under pressure pass through these pores, but salt ions and other impurities cannot, resulting in highly purified water.

The new membrane, developed by civil and environmental engineering assistant professor Eric Hoek and his research team, uses a uniquely cross-linked matrix of polymers and engineered nanoparticles designed to draw in water ions but repel nearly all contaminants. These new membranes are structured at the nanoscale (the width of human hair is approximately 100,000 nanometers) to create molecular tunnels through which water flows more easily than contaminants.

Unlike the current class of commercial RO membranes, which simply filter water through a dense polymer film, Hoek's membrane contains specially synthesized nanoparticles dispersed throughout the polymer -- known as a nanocomposite material.

"The nanoparticles are designed to attract water and are highly porous, soaking up water like a sponge, while repelling dissolved salts and other impurities," Hoek said. "The water-loving nanoparticles embedded in our membrane also repel organics and bacteria, which tend to clog up conventional membranes over time."

With these improvements, less energy is needed to pump water through the membranes. Because they repel particles that might ordinarily stick to the surface, the new membranes foul more slowly than conventional ones. The result is a water purification process that is just as effective as current methods but more energy efficient and potentially much less expensive. Initial tests suggest the new
'"/>

Contact: Melissa Abraham
mabraham@support.ucla.edu
310-206-0540
University of California - Los Angeles
6-Nov-2006


Page: 1 2 3

Related biology news :

1. Boston Univeristy bioengineers devise dimmer swith to regulate gene expression in mammal cells
2. Worlds top engineers in San Antonio for system of systems conference
3. New medications, cancer diagnosis goals of UH engineers with $1M in grants
4. EO Lawrence Award goes to 8 scientists and engineers
5. Carnegie Mellon engineers devise new process to improve energy efficiency of ethanol production
6. Pittsburgh-based team engineers muscle, bone cell differentiation with aid of ink-jet printer
7. NJIT women scientists and engineers use new information technologies to tackle isolation on campus
8. MIT engineers probe spiders polymer art
9. Yale biomedical engineers receive prestigious Early Career Awards
10. Physicians and engineers pool resources to prevent stroke
11. Pitt trains budding engineers to think green

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


(Date:3/20/2017)... 20, 2017 At this year,s CeBIT Chancellor Dr. ... manufacturer DERMALOG. The Chancellor came to the DERMALOG stand together with the ... year,s CeBIT partner country. At the largest German biometrics company the two ... face and iris recognition as well as DERMALOGĀ“s multi-biometrics system.   ... ...
(Date:3/13/2017)... , March 13, 2017 Future of security: Biometric ... ... DERMALOGs Face Matching enables to match face pictures ... the basis to identify individuals. (PRNewsFoto/Dermalog Identification Systems) ... DERMALOG,s "Face Matching" is the fastest software for biometric Face ...
(Date:3/7/2017)... Brandwatch , the leading social intelligence company, today announces that ... uncover insights to support its reporting, help direct future campaigns, and ... youth charity will be using Brandwatch Analytics social listening and analytics ... of the topics and issues that are a priority for its ... "Until recently ...
Breaking Biology News(10 mins):
(Date:3/23/2017)... 2017 NetworkNewsWire Editorial Coverage  ... Cancer remains one ... on health care systems, in terms of costs and resources. ... does the development of innovative and efficient therapies that demonstrate ... many types of cancer treatments, a growing number of patients ...
(Date:3/22/2017)... TARRYTOWN, N.Y. , March 22, 2017 Regeneron ... among the Regeneron Genetics Center (RGC), U.K. Biobank and GSK ... in the U.K. Biobank resource. The initiative will enable researchers ... of new medicines for a wide range of serious and ... ...
(Date:3/22/2017)... , March 22, 2017 Oramed Pharmaceuticals ... www.oramed.com ), a clinical-stage ... drug delivery systems, announced today that Dr. ... deliver a presentation titled, "Oral Insulin for Diabetes ... Cambridge Healthtech Institute,s Oligonucleotide and Peptide Therapeutics (OPT) Boston Conference ...
(Date:3/22/2017)... --  Boston Biomedical , an industry leader in the ... stemness pathways, today announced its Board of Directors has ... Officer, effective April 24, 2017. Ms. ... FACP, who has led Boston Biomedical since he founded ... Biomedical has grown from a "garage startup" without technology ...
Breaking Biology Technology:
Cached News: