Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Nanotechnological innovations can improve water

Abstract:
Research teams are trying different approaches within the nanotechnological field to improve water membrane technologies. One of these is to improve water purification by using nature's own water-transporting channels, aquaporins. However, constructing suitable membranes for industrial processes is a challenge.

Nanotechnological innovations can improve water

Italy | Posted on May 13th, 2011

Membranes for water purification are used in many applications and different types of membranes are being developed at the moment. No membrane can filter and purify water entirely, but improvements using novel kinds of membranes are made.

In the European Commission-funded project MEMBAQ (Incorporation of Aquaporins in Membranes for Industrial Applications) researchers are taking advantage of a unique structure nature has already created, when they are developing a nanotechnological invention. They are inspired by the cell membranes' water-transporting channels made up of proteins called aquaporins. Only pure H2O molecules are let through. Different kinds of water filtration membranes have been incorporated with these aquaporins, in the pursuit of a revolutionary nanobiotechnological water membrane technology that can remove particles and pathogens from the water much more efficiently, compared to other membranes on the market.

The main challenge at the moment is to make membranes applicable to industrial processes. However, the scientists have come a long way by supporting the aquaporins with a flexible and tissue-like hydrogel layer and then stabilizing this layer with a perforated Teflon film, capable of holding hydrogel and aquaporin droplets. The project's aim is to develop membranes capable of, for example, recycle wastewater into drinking water and desalinate water. In addition, this technology could serve customers working on semiconductors, since they use a lot of ultra pure water, and might make this industry greener by reducing the energy needed during the water purification process. If everything goes according to plans, the customers will be offered a membrane that is five to ten times more efficient than membranes currently available on the market.

Another way of improving water purification through a nanotechnological approach has been developed by researchers at Stanford University. They have electrified a cotton membrane, coated with silver nanowires and nanotubes, to kill pathogens. This electrical mechanism is used instead of size exclusion. The bigger pores let the water flow through about 80,000 times faster than bacteria-trapping membranes allow and also make it possible to avoid clogging of the membranes. Multiple filter stages are needed, since one electrified membrane only kills 98 percent of the pathogens. The researchers have shown that the electricity required to run current through the membrane could be as low as a fifth of a filtration pump's energy need, when a comparable water amount is let through.

The market for different membranes that can purify water is growing and customers might soon have the possibility to pick a membrane that better suit their needs.

####

For more information, please click here

Contacts:
Elisabeth Schmid
Phone: +39 0272002572
Fax: +39 0272002540
E-mail:

Copyright © youris.com

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Instant-start computers possible with new breakthrough December 19th, 2014

Aculon Hires New Business Development Director December 19th, 2014

Iranian Scientists Use Nanotechnology to Increase Power, Energy of Supercapacitors December 18th, 2014

Govt.-Legislation/Regulation/Funding/Policy

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Zenosense, Inc. - Hospital Collaboration - 400 Person Lung Cancer Detection Trial December 17th, 2014

SUNY Poly NanoCollege Faculty Member Selected as American Physical Society Fellow: SUNY Poly Associate Professor of Nanoscience Dr. Vincent LaBella Recognized for Significant Technological Innovations that Enable Interactive Learning December 17th, 2014

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

Discoveries

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Instant-start computers possible with new breakthrough December 19th, 2014

Creation of 'Rocker' protein opens way for new smart molecules in medicine, other fields December 18th, 2014

Iranian Scientists Use Nanotechnology to Increase Power, Energy of Supercapacitors December 18th, 2014

Announcements

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Instant-start computers possible with new breakthrough December 19th, 2014

Aculon Hires New Business Development Director December 19th, 2014

Iranian Scientists Use Nanotechnology to Increase Power, Energy of Supercapacitors December 18th, 2014

Water

Unraveling the light of fireflies December 17th, 2014

Biomimetic dew harvesters: Understanding how a desert beetle harvests water from dew could improve drinking water collection in dew condensers December 8th, 2014

Iranian Scientists Refine Wastewater of Nuclear Power Plants Using Nanoparticles December 1st, 2014

Iranian Experts Clean Uranium-Contaminated Water by Nano-Particles November 23rd, 2014

Research partnerships

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Unraveling the light of fireflies December 17th, 2014

Scientists trace nanoparticles from plants to caterpillars: Rice University study examines how nanoparticles behave in food chain December 16th, 2014

FEI and Oregon Health & Science University Install a Complete Correlative Microscopy Workflow in Newly Built Collaborative Science Facility December 16th, 2014

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE