Navigation Links
A molecular ripcord for chemical reactions
Date:4/6/2009

Researchers at Eindhoven University of Technology (TU/e) have developed an entirely new method for starting chemical reactions. For the first time they used mechanical forces to control catalytic activity one of the most fundamental concepts in chemistry. This allowed them to initiate chemical reactions with mechanical force. This discovery paves the way to developing materials capable of repairing themselves under the influence of mechanical tension. The results of their research will be published online on 6 April 2009 in the new international journal Nature Chemistry.

Molecular ripcord

The research team (Dr. Alessio Piermattei, Dr. Karthik Sivasubramanian and Dr. Rint Sijbesma) of the Institute for Complex Molecular Systems (ICMS) and the Department of Chemical Engineering and Chemistry, both at TU/e, is the first to have demonstrated that a catalyst can be switched from a dormant to an active state (see illustration) by pulling on a polymer chain, a "molecular ripcord." The researchers were able to use this catalyst to initiate a variety of chemical reactions, including polymerizations (formation of polymer chains from small molecular building blocks called monomers).

Self-repairing materials

This discovery paves the way to creating self-repairing materials that strengthen under the influence of mechanical stress. If a material were to tear, for example, this would simultaneously break the metal complex in half, thereby activating the catalyst, and the material would be instantly repaired.

This work will also lead to research into other applications in which it should be possible to turn chemical reactions on and off as desired. Potential applications include the injection molding of plastic objects, where the technique could be used to simplify processing, or microscale chemical synthesis.

How does it work; weakest link

The researchers packed a catalytically active metal ion
'/>"/>

Contact: Dr. Rint Sijbesma
r.p.sijbesma@tue.nl
31-402-473-737
Eindhoven University of Technology
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Data on WaferGens SmartChip(TM) System Presented at 16th International Molecular Medicine Tri-Conference
2. Amsterdam Molecular Therapeutics Reports Full Year Results 2008
3. Data on WaferGens SmartChip Real-Time PCR System(TM) to be Presented at 16th International Molecular Medicine Tri-Conference
4. Frost & Sullivan Names Naviscan a Leader in the Future of Molecular Breast Imaging
5. Fraunhofer USA Center for Molecular Biotechnology Receives Gates Foundation Grant for Avian Influenza Vaccine Development
6. Researchers: Molecular forklifts overcome obstacle to smart dust
7. In 2008, Ipsogen Reinforced its Leadership in Molecular Diagnosis and Monitoring of Leukemia
8. Fast molecular rearrangements hold key to plastics toughness
9. Imaging in Living Color with Siemens Molecular CT
10. Fast molecular rearrangements hold key to plastic’s toughness
11. China Medical Technologies Completes the Development of EGFR Molecular Diagnostic Kits
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A molecular ripcord for chemical reactions
(Date:7/10/2014)... Ouagadougou, Burkina Faso (PRWEB) July 10, 2014 ... Burkina Faso, today have access to an additional ... to increase access to contraception at all levels ... combining a lower-dose formulation of a widely used ... injection system. , Burkina Faso is the first ...
(Date:7/10/2014)... UK (PRWEB) July 10, 2014 ... 21st Century Medicine Forum on ‘Commercialising Longevity Research’ ... and entrepreneurs to the London Bioscience Innovation Center ... Research Foundation and Aging Analytics Ltd. The meeting ... investment in translational research for age-related disease, as ...
(Date:7/10/2014)... Terascala, the industry leader in ... a former vice president of product management for Flexera ... of marketing. Terascala’s software when combined with leading compute ... highest performance and most reliable solutions for processing big ... channel expansion and broaden its product portfolio. His leadership ...
(Date:7/10/2014)... Robert Harman, DVM, Founder and CEO of Vet-Stem, Inc., ... the relaunch of his highly informative blog, now named Stem ... What are Stem Cells ?” Dr. Harman’s purpose for ... the basics of stem cell therapy so that pet owners ... treatment when considering regenerative medicine. , A veterinarian by trade, ...
Breaking Biology Technology:Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 2Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 4Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 5Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 6DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6Terascala Expands Executive Team 2Terascala Expands Executive Team 3Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3
... - AEterna Zentaris Inc. (NASDAQ: AEZS ... on endocrine therapy and oncology, announced today that ... offering of US$10 million of units comprised of ... certain institutional investors. AEterna Zentaris received net proceeds ...
... 24 Cancer therapies and diagnostics, including new technologies, enhanced ... testing, will be at the center of Cleveland Clinic,s 7th ... Summit will bring together more than 900 leaders from throughout ... cancer care, exchange perspectives and gain actionable insights. , ...
... & Industry Milestone of 1000 + Egg Donors , ... collaboration of egg donor agencies through out the United States, ... web-based collective of egg donors - has quickly become one ... more than one thousand diverse and multi-cultural egg donor candidates. ...
Cached Biology Technology:AEterna Zentaris Receives US$10 Million from Institutional Investors 2AEterna Zentaris Receives US$10 Million from Institutional Investors 32009 Medical Innovation Summit at Cleveland Clinic to Highlight the Latest Developments in Cancer Care 22009 Medical Innovation Summit at Cleveland Clinic to Highlight the Latest Developments in Cancer Care 3First-Ever Egg Donor Web Portal Becomes One of The Largest Resources for Aspiring Parents in the U.S. 2
(Date:7/11/2014)... China Researchers from Salk Institute for Biological Studies, ... evaluated the safety and reliability of the existing ... new method, TALEN-HDAdV, which could significantly increased gene-correction ... This study published online in Cell Stell ... stem cell-based gene therapy. , The combination of ...
(Date:7/11/2014)... Researchers from Ume University, Sweden, have explored two ... the reaction sequence leading to the formation of ... been published in the scientific journal Nature ... improving present day synthetic catalysts for water oxidation, ... devices for the direct storage of solar energy ...
(Date:7/11/2014)... has demonstrated that transplantation of mesenchymal stem cells can ... mouse models of Alzheimer,s disease (AD) and improve tissue ... Few studies are reported on the therapeutic effect of ... and on the effect on oxidative injury and neurogenesis ... and her team, School of Life Sciences, Tsinghua University, ...
Breaking Biology News(10 mins):A new genome editing method brings the possibility of gene therapies closer to reality 2Molecular snapshots of oxygen formation in photosynthesis 2
... Botanists at Oregon State University have discovered that a ... at the same time it produces susceptibility to a ... has ever been observed in plants. The finding, ... of Sciences, may help scientists better understand the pathways ...
... coastal waters interfere with fish reproduction by disrupting the ... Texas at Austin Marine Science Institute has found. ... hypoxia, have increased dramatically in coastal waters throughout the ... result of increased run-off from human agricultural and industrial ...
... Saudi Arabia (August 30, 2007) Saudi Arabias King ... the Indian Institute of Technology, Bombay (IIT Bombay) ... 2, 2007, to work together to foster world-class programs that ... development in fundamental and applied chemical sciences for the benefit ...
Cached Biology News:Same gene protects from 1 disease, opens door to another 2Low oxygen in coastal waters impairs fish reproduction 2Saudi Arabia's KAUST and IIT, Bombay to Collaborate on Scientific Research 2
... Five cells (BTI-TN-5B1-4) derived from Trichoplusia ... shown to be capable of expressing ... proteins compared to other insect cells. ... features:- -Rapid doubling time as adherent cultures- Quick ...
... offers the most comprehensive, cost-effective solution ... have incorporated unprecedented quality into both ... includes proven detection chemistries and antibodies ... TechMate protocol. It also includes our ...
...
...
Biology Products: