Navigation Links
Researchers develop better membranes for water treatment, drug delivery
Date:11/29/2007

CHAMPAIGN, Ill. Researchers at the University of Illinois have developed a new generation of biomimetic membranes for water treatment and drug delivery. The highly permeable and selective membranes are based on the incorporation of the functional water channel protein Aquaporin Z into a novel A-B-A triblock copolymer.

The experimental membranes, currently in the form of vesicles, show significantly higher water transport than existing reverse-osmosis membranes used in water purification and desalination. The researchers describe their membranes in a paper accepted for publication in the Proceedings of the National Academy of Sciences. The paper is to be published in PNAS Online Early Edition this week.

We took a close look at how kidneys so efficiently transport water through a membrane with aquaporins, and then we found a way to duplicate that in a synthetic system, said Manish Kumar, a graduate research assistant at the U. of I., and the papers lead author.

Unlike most biological membranes, polymer membranes are very stable and can withstand considerable pressure essential requirements for water purification and desalination processes. Placing aquaporins in materials that we can use outside the body opens doors to industrial and municipal applications, Kumar said.

To make their protein-polymer membranes, the researchers begin with a polymer that self-assembles into hollow spheres called vesicles. While the polymer is assembling, the researchers add Aquaporin Z a protein found in Escherichia coli bacteria.

Aquaporin Z makes a hole in the membrane that only water can go through, so its both fast and selective, said membrane specialist Mark Clark, a professor of civil and environmental engineering and one of the papers co-authors.

By varying the amount of Aquaporin Z, we can vary the membranes permeability, Kumar said, which could be very useful for drug-delivery applications.

With their high permeability and high selectivity, the
'/>"/>

Contact: James E. Kloeppel
kloeppel@uiuc.edu
217-244-1073
University of Illinois at Urbana-Champaign
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/17/2015)... , June 17, 2015  Crossmatch™, a leading ... that its U.are.U ® 4500 fingerprint readers ... Eateries, Inc., a San Jose, ... to increase security, improve accountability and reduce fraud ... instant, non-repudiable identity confirmation for employee sign in ...
(Date:6/16/2015)... Fingerprint Cards has received an order ... company,s portfolio from one of its module partners in ... place during the third quarter 2015. The sensors will be ... Jörgen Lantto, CEO of FPC, comments: " This ... interest from smartphone OEMs in integrating touch fingerprint sensors in ...
(Date:6/15/2015)... A new report [ 1 ] ... consumers using mobile banking applications want their mobile devices to ... instead of having to prove who they are with passwords ...   -   The Fusion of Financial Services, Mobile and ... channel used by Gen X and Gen Y to access ...
Breaking Biology News(10 mins):Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3FPC Receives Order for Touch Fingerprint Sensors of 375 MSEK 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 3One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 4
... Tide" event that occurred off the coast of El ... some 200 sea turtles, according to test results released ... organizations. , Responding to requests from the Salvadoran government ... WCS veterinary pathologist Dr. Julie White journeyed to the ...
... McKusick-Nathans Institute of Genetic Medicine at Johns Hopkins have ... what many have termed "junk" DNA and identified regions ... that these control regions from different species don't have ... will be published online at Science Express March 23. ...
... at the McKusick-Nathans Institute of Genetic Medicine at Johns ... of analyzing what many have termed "junk" DNA and ... have found that these control regions from different species ... The study will be published online at Science Express ...
Cached Biology News:Red Tide causes sea turtle die-off in El Salvador 2Infused spleen cells found not to impact islet recovery and reversal of type 1 diabetes in mice 2Infused spleen cells found not to impact islet recovery and reversal of type 1 diabetes in mice 3Junk DNA may not be so junky after all 2Junk DNA may not be so junky after all 3
(Date:7/6/2015)... ... July 06, 2015 , ... A ... new insights into how virulent fungi adapt through genetic modifications to fight back ... battle leaves them temporarily weakened. These insights may provide clues to new ways ...
(Date:7/6/2015)... June 29, 2015 ... the addition of the "Biotechnology for the ... Biotechnology for the Non-Biotechnologist, ideal for non-Scientists and ... techniques and potential of biotechnology. Ideal ... basic theory, principles, techniques, and potential of biotechnology ...
(Date:7/3/2015)... (PRWEB) , ... July 03, ... ... company providing industry-leading products for use in applications such as animal waste ... wastewater treatment plants and restaurant kitchen settings, announced today that it will ...
(Date:7/3/2015)... 3, 2015 Forskere ... Innovation in Science", som finner sted i ... på nett, på  http://www.openinnovationinscience.at , og søknadsperioden ... De to største utfordringene innen helsevitenskapen ... nye forskningsspørsmål og kompleksiteten av nåværende forskningsresultater, ...
Breaking Biology Technology:Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 2Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 3Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 4DryLet to Highlight Benefits of Patented ManureMagic™ at North American Manure Expo in Chambersburg, PA July 14-15, 2015 2Lansering av verdens første Open Innovation-program for utdanning av forskere 2Lansering av verdens første Open Innovation-program for utdanning av forskere 3
... Pioneer in High Throughput SNP Discovery Brings ... Oct. 14 BioNanomatrix, Inc., a developer,of ... and biomedical research, today announced the appointment ... Ph.D., to its Scientific,Advisory Board (SAB). Dr. ...
... offers unique opportunities to advance the life sciences ... biological materials with unprecedented resolution. The ability to ... of genomics, proteomics and cell adhesion, and may ... screening and disease detection, even when sample volumes ...
... of Late Stent Thrombosis Reported in CUSTOM I, II, and III ... ... PARK, Calif., Oct. 13 ,XTENT, Inc. (Nasdaq: XTNT ) today announced ... that reinforces the,efficacy of the Custom NX(R) drug eluting stent (DES) system ...
Cached Biology Technology:BioNanomatrix Announces Appointment of Dr. Pui-Yan Kwok to Its Scientific Advisory Board 2Researchers write protein nanoarrays using a fountain pen and electric fields 2Researchers write protein nanoarrays using a fountain pen and electric fields 3Custom NX(R) Drug Eluting Stent System Continues to Demonstrate Favorable Outcomes in Challenging Patient Populations at One, Two and Three Years 2Custom NX(R) Drug Eluting Stent System Continues to Demonstrate Favorable Outcomes in Challenging Patient Populations at One, Two and Three Years 3
... Cell Identification Kit. ALDEFLUORs ... substrate for the enzyme ... is highly expressed in ... making ALDH an extremely ...
... System is the cost-effective solution for entry ... to common research imaging tasks, MetaVue enables ... simple image analysis. Compatibility with MetaMorphs ... that MetaVue has the power to drive ...
Sterile, Cell culture tested...
... many modifications to the original formulas in efforts ... play an important role in tissue,culture. A salt ... osmotic balance in the medium and to provide ... is as valuable today as when it was ...
Biology Products: