Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

Govt.-Legislation/Regulation/Funding/Policy

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Researchers develop microbubble scrubber to destroy dangerous biofilms September 19th, 2018

Researchers managed to prevent the disappearing of quantum information September 14th, 2018

New photonic chip promises more robust quantum computers September 14th, 2018

Discoveries

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

NUS researchers invent new test kit for quick, accurate and low-cost screening of diseases: Test results are denoted by a color change and could be further analyzed by a smartphone app, making it attractive as a point-of-care diagnostic device September 19th, 2018

Announcements

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

Water

Silver nanoparticles are toxic for aquatic organisms: A research team at the UPV/EHU-University of the Basque Country has analysed how zebrafish are affected in the long term by exposure to silver particles September 19th, 2018

Halas wins American Chemical Society Award in Colloid Chemistry: Rice University nanophotonics pioneer honored for colloid research September 18th, 2018

S, N co-doped carbon nanotube-encapsulated CoS2@Co: Efficient and stable catalysts for water splitting September 10th, 2018

Producing hydrogen from splitting water without splitting hairs: New model explains interactions between small copper clusters used as low-cost catalysts in the production of hydrogen by breaking down water molecules August 31st, 2018

Research partnerships

Leti Announces EU Project to Develop Powerful, Inexpensive Sensors with Photonic Integrated Circuits: REDFINCH Members Initially Targeting Applications for Gas Detection and Analysis For Refineries & Petrochemical Industry and Protein Analysis for Dairy Industry September 19th, 2018

Researchers develop microbubble scrubber to destroy dangerous biofilms September 19th, 2018

Leti & EFI Aim to Dramatically Improve Reliability & Speed of Low-Cost Electronic Devices for Autos: Project Will Extend Model Predictive Control Technique to Microcontrollers, Digital Signal Processors and Other Devices that Lack Powerful Computation Capabilities September 18th, 2018

Tiny camera lens may help link quantum computers to network September 14th, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project