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:
(Date:5/18/2015)... Fingerprint Cards (FPC) has received an ... and FPC1035 from one if its module partners. Deliveries are ... 2015 and the sensors will be used by smartphone manufacturers ... 2015 hereby amount to 740 MSEK to date. In addition ... and a number of smaller orders not separately communicated amounting ...
(Date:5/11/2015)... May 11, 2015  Synaptics Incorporated (NASDAQ: ... solutions, today announced the appointment of Wajid ... Financial Officer, reporting to Rick Bergman , ... Chief Financial Officer, Kathleen Bayless , who ... Mr. Ali brings extensive financial management expertise ...
(Date:5/10/2015)... , May 11, 2015 Fingerprint Cards ... FPC1025 and FPC1155 from the distributor World Peace Industrial Group ... distributors in Asia . Deliveries are planned ... be used by smartphone manufacturers in China ... the communicated revenue guidance of + 1 000 MSEK for 2015. ...
Breaking Biology News(10 mins):Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2Synaptics Appoints Wajid Ali as Senior Vice President and Chief Financial Officer 2Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 235 Million 2
(Date:5/25/2015)... May 25, 2015 The 2015 ... Industry is a professional and in-depth study on ... Chloride Market with a focus on the ... chloride market research are Linde Industrial Gas, Basf, ... Chemical, Shandong Xinlong Group, Longsheng Group, Juhua Group, ...
(Date:5/22/2015)... According to a new market research report ... Agarose & Polyacrylamide Gel, Capillary Electrophoresis, Isoelectric Focusing, Isotachophoresis, ... End User - Global Forecast to 2020", published by ... $1.98 Billion by 2020 with a CAGR of 5.3% ... Browse 226 ma rket data T ...
(Date:5/22/2015)... , May 22, 2015 Baylor Research ... the Translational Genomics Research Institute (TGen) in ... will focus on accelerating early detection and treatments for patients ... of both institutions will lead to new clinical trials and ... – bridging the gap from bench to bedside across ...
(Date:5/21/2015)... Specialty Pharmacy Times has completed its ... BPA Worldwide as a business publication member. As ... for Specialty Pharmacy Times based on business/distribution, demographics ... member of BPA Worldwide, Specialty Pharmacy Times shows ... the most reliable, unequaled data,” said Chris Hennessy, ...
Breaking Biology Technology:Global Hydrogen Chloride Industry 2015 Trends and Analysis Available in a New Report at DeepResearchReports.com 2Global Hydrogen Chloride Industry 2015 Trends and Analysis Available in a New Report at DeepResearchReports.com 3Electrophoresis Market Worth $1.98 Billion by 2020 2Electrophoresis Market Worth $1.98 Billion by 2020 3Electrophoresis Market Worth $1.98 Billion by 2020 4Precision Medicine Collaboration to Increase Options for Cancer Patients 2Precision Medicine Collaboration to Increase Options for Cancer Patients 3Precision Medicine Collaboration to Increase Options for Cancer Patients 4Specialty Pharmacy Times Joins BPA Worldwide 2
Cached News: