Navigation Links
Researchers engineer new polymers to change their stiffness and strength when exposed to liquids
Date:3/6/2008

CLEVELAND -- An interdisciplinary team of researchers from the departments of macromolecular science and engineering and biomedical engineering at the Case School of Engineering and the Louis Stokes Cleveland Department of Veterans Affairs Medical Center has published ground-breaking work on a new type of polymer that displays chemoresponsive mechanic adaptability -- meaning the polymer can change from hard to soft plastic and vice versa in seconds when exposed to liquid -- in the March 7, 2008, issue of Science, one of the world's most prestigious scholarly journals covering all aspects of science.

Jeffrey R. Capadona, associate investigator at the VA's Advanced Platform Technology (APT) Center, graduate student Kadhiravan Shanmuganathan, and Case Western Reserve University professors and APT investigators Dustin Tyler (biomedical engineering), Stuart Rowan (macromolecular science) and Christoph Weder (macromolecular science) have unveiled a radically new approach for developing polymer nanocomposites which alter their mechanical properties when exposed to certain chemical stimuli.

"We can engineer these new polymers to change their mechanical properties -- in particular stiffness and strength -- in a programmed fashion when exposed to a specific chemical," says Weder, one of the senior authors of the paper.

"The materials on which we reported in Science were designed to change from a hard plastic -- think of a CD case -- to a soft rubber when brought in contact with water," adds Rowan, who has been Weder's partner on the project for almost six years.

"Our new materials were tailored to respond specifically to water and to exhibit minimal swelling, so they don't soak up water like a sponge," saud Shanmuganathan.

In their new approach, the team used a biomimetic approach -- or mimicking biology -- copying nature's design found in the skin of sea cucumbers.

"These creatures can reversibly and quickly change the stiffness of the
'/>"/>

Contact: Laura M. Massie
laura.massie@case.edu
216-368-4442
Case Western Reserve University
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Researchers improve ability to write and store information on electronic devices
2. Long-awaited international ethical guidelines for biobank researchers
3. CU researchers shed light on light-emitting nanodevice
4. Stevens researchers provide new information about mass spectrometry
5. Researchers measure carbon nanotube interaction
6. Researchers underscore limitations of genetic ancestry tests
7. ASU researchers improve memory devices using nanotech
8. UD researchers race ahead with latest spintronics achievement
9. Researchers outline structure of largest nonvirus particle ever crystallized
10. Ames Laboratory researchers solve fuel-cell membrane structure conundrum
11. Researchers use magnetism to target cells to animal arteries
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers engineer new polymers to change their stiffness and strength when exposed to liquids
(Date:12/24/2014)... , Dec. 24, 2014  Vermillion, Inc. (Nasdaq: ... gynecologic disease, announced today that the Company closed ... Oracle Investment Management, Jack W. Schuler , ... proceeds were $10.5 million, before offering expenses.  The ...
(Date:12/24/2014)... GMO corn cases filed across the United States, ... of being consolidated in a Kansas federal court for pretrial ... 162 Corn Litigation, MDL No. 2591 in the U.S. District ... Syngenta GMO corn multidistrict litigation (MDL) has been handed over ...
(Date:12/24/2014)... 23, 2014 On Friday, December 19, ... Omnibus and Continuing Resolution Appropriations Act of 2015, which ... to receive funding through the Congressionally Directed Medical Research ... The Hydrocephalus Association (HA), working in conjunction with its ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 Nashville Fertility Center ... treasurer for the American Society for Reproductive Medicine (ASRM), a ... reproductive medicine. In his new role as treasurer, Dr. ... will have a voice in furthering the mission of ASRM. ...
Breaking Biology Technology:Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2Rare Brain Condition Now Eligible for Department of Defense Research Dollars 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3
... PDE10 Collaboration with Amgen- ... Call at 9:00 A.M. EDT-, MONTVALE, N.J., March ... announced that it has realigned,its operations, reallocated its resources ... with Amgen. The Company will,focus its near-term and mid- ...
... for Healthcare Industry by ... Identifying Eight Herpesviruses Simultaneously, HELSINKI, Finland, March ... the new Prove-it(TM) Herpes,test for the fast and ... than three hours to complete and enables,simultaneous identification ...
... Nile Therapeutics,Inc. (OTC Bulletin Board: NILT), today announced that ... for 2007 after the market,closes on Thursday, March 13, ... webcast to discuss these financial results and provide an,update ... ET, 1:30 p.m. PT,that afternoon., Interested investors may ...
Cached Biology Technology:Memory Pharmaceuticals Refocuses to Advance Development and Clinical Programs 2Memory Pharmaceuticals Refocuses to Advance Development and Clinical Programs 3Memory Pharmaceuticals Refocuses to Advance Development and Clinical Programs 4Memory Pharmaceuticals Refocuses to Advance Development and Clinical Programs 5Mobidiag Releases First Microarray Based Rapid Test for Herpesvirus Identification 2Nile Therapeutics to Announce 2007 Fourth Quarter and Full Year Financial Results on Thursday, March 13, 2008 2
(Date:1/22/2015)... 13, 2015  Today, FreeWavz ( www.FreeWavz.com ), the ... campaign on Fundable, https://www.fundable.com/freewavz . FreeWavz will ... capacity to meet customer demand. Logo ... http://photos.prnewswire.com/prnh/20150113/168790 Invented by Dr. ...
(Date:1/22/2015)... N.C. , Jan. 16, 2015  A man-made form ... memory and other mental capabilities in adults with mild ... pilot study led by researchers at Wake Forest Baptist ... adults diagnosed with amnesic mild cognitive impairment (MCI) or ...
(Date:1/22/2015)... Issued by Small Cap IR. In 2011, Nilson Report,s annual ... merchants on the leading payment cards rose to $135.3 billion ... prepaid cards reached 6.54 billion.  Eight million credit card users ... 2012, and credit and debit card fraud resulted in $11.27 ...
Breaking Biology News(10 mins):FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2
... waste occupying our landfills has grown at an alarming rate ... toxicity of components used in consumer electronics. Researchers ... minimize environmental hazards associated with a material likely to play ... in the future. The results of their most recent studies ...
... colorful wings, the future of Monarch butterflies may not be ... down again this year, says a Texas A&M University researcher. ... the Center for Mathematics and Science Education and a long-time ... donors and Mexico,s Michoacan state show that Monarch numbers will ...
... poll* of more than 10,000 citizens from ten European countries, ... among all issues that threaten the marine environment. A new ... concern is not misplaced and is supported by scientific evidence. ... market have a production volume higher than one tonne per ...
Cached Biology News:UF researchers look for ways to make an emerging technology safe for environment 2Monarch butterflies down again this year as decline continues, says Texas A&M expert 2Chemical pollution in Europe's seas: The monitoring must catch up with the science 2
... histochemically detect specific senescence ... in cultured cells and ... marker is only present ... found in presenescent/quiescent/immortal cells. ...
TAR DNA binding protein...
... Star strains are high-performance ... improved protein yield in ... (Figure 1). Because the ... mRNA more rapidly than ...
...
Biology Products: