Navigation Links
Polymer characterization 'tweezers' turn Nobel theory into benchtop tool
Date:10/19/2011

(UC Santa Barbara ) Researchers at UC Santa Barbara have developed a new and highly efficient way to characterize the structure of polymers at the nanoscale effectively designing a routine analytical tool that could be used by industries that rely on polymer science to innovate new products, from drug delivery gels to renewable bio-materials.

Professor Omar Saleh and graduate student Andrew Dittmore of the UCSB Materials department have successfully measured the structure and other critical parameters of a long, string-like polymer molecule polyethylene glycol, or PEG by stretching it with an instrument called magnetic tweezers.

"We attach one end of the PEG molecule to a surface, and the other to a tiny magnetic bead, then pull on the bead by applying a magnetic field," explained Saleh. "The significance is that we're able to perform the elastic measurements force vs. length measurement to see aspects of polymer structure that are hard to see in any other way, and we can do it within minutes on a benchtop apparatus."

Their research to characterize this particular polymer will lay the groundwork for developing a screening tool that could be used by a number of industries, according to Saleh's research team.

"Our measurements of PEG can be used as a baseline for comparison to other polymers, including biomolecules such as DNA, RNA and proteins, which display more complex physics," said Dittmore. "We chose to study PEG because it is an inert polymer that is biocompatible, soluble in water, and used for many technological purposes. The protocols we developed will be useful for future work with a variety of polymers, greatly expanding the versatility of the magnetic tweezers technique."

PEG is one of the most frequently used polymers in creams, cosmetics, adhesives and medicines, but its application goes beyond everyday household products. As a coating, PEG can shield against an unwanted immune response to give
'/>"/>

Contact: Melissa Van De Werfhorst
melissa@engineering.ucsb.edu
805-893-4301
University of California - Santa Barbara
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. New polymer coatings prevent corrosion, even when scratched
2. Novel polymer could improve protein-based drugs
3. A step toward better brain implants using conducting polymer nanotubes
4. How RNA polymerase II gets the go-ahead for gene transcription
5. Multifunctional polymer neutralizes both biological and chemical weapons
6. To improve lung cancer diagnosis, good medicine is a polymer pill
7. Polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico test
8. Pitt researcher says simple polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico tests
9. UM scientists demonstrate role of RNA polymerase in gene transcription
10. Polymer passage takes time
11. Nature Nanotechnology paper shows enzyme-controlled movement of DNA polymer through a nanopore
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Polymer characterization 'tweezers' turn Nobel theory into benchtop tool
(Date:7/9/2014)... Sexual selection refers to species, selection for traits that ... of natural selection enhances opportunities to mate, the tail ... at the University of California, Riverside have now found ... a placenta are linked. Describing the life histories ... family Poeciliidae, the researchers found that species with placentas ...
(Date:7/9/2014)... (TCGA) Research Network have identified novel mutations in ... most common subtype of lung cancer. Knowledge of ... possible therapeutic targets for this disease and potentially ... mutations because many potent cancer drugs that target ... funded and managed by the National Cancer Institute ...
(Date:7/9/2014)... With grilling season upon us, many backyard cooks are ... fatty hot dogs. But low fat can sometimes mean ... addressing the texture problem in low-fat wieners that are ... study was published in ACS, Journal of Agricultural ... colleagues note that hot-dog consumers have come to expect ...
Breaking Biology News(10 mins):Biologists link sexual selection and placenta formation 2Biologists link sexual selection and placenta formation 3Biologists link sexual selection and placenta formation 4Study identifies novel genomic changes in the most common type of lung cancer 2Study identifies novel genomic changes in the most common type of lung cancer 3
... those hoping to start or extend a family should ... Current clinical guidelines already recommend that women who are ... based on the knowledge that cholesterol is essential for ... the risk of congenital anomalies in children of pregnant ...
... pollution are decreasing the growth of trees in the northern ... in Global Change Biology . Tree growth, measured ... and this is set to increase to a 17% reduction ... four times greater now than prior to the Industrial Revolution ...
... momentum of,September,s impressive showing at the ePassports EAC Conformity ... advances its role as the,world,s ePassport leader by being ... advanced second-generation ePassports based on the,Extended Access Control (EAC) ... ePassports represent the beginning of an evolution that,will improve ...
Cached Biology News:Statin warning for pregnant women 2Surface-level ozone pollution set to reduce tree growth 10 percent by 2100 2The Finnish Population Register Centre to Deploy Entrust EAC ePassport CA Solution 2The Finnish Population Register Centre to Deploy Entrust EAC ePassport CA Solution 3The Finnish Population Register Centre to Deploy Entrust EAC ePassport CA Solution 4
(Date:1/14/2014)... UK (PRWEB) January 13, 2014 Bob ... with more than 20 years in the industry, has ... photonics . Hainsey will serve as the society’s Science ... Dr. Hainsey join SPIE as our Technology Strategist, further ...
(Date:1/14/2014)... During the 1600’s through the 1800’s doctors contributed ... In this time period, doctors did not know that they ... the death of vulnerable patients. In the same way, medical ... be unwittingly transmitting herpes viruses to their patients. The CBCD ...
(Date:1/14/2014)... 14, 2014 BioMedomics, Inc. , a ... diagnostic platforms and novel disease specific POC tests, announced today ... netting a total of $690,000. The investment is from private ... company. This group of private investors has significant successful experience ...
(Date:1/14/2014)... Panama (PRWEB) January 14, 2014 ... received the county’s first clinical trial approval for ... cord-derived mesenchymal stem cells (MSC) from the Comité ... Board (IRB). , Rheumatoid Arthritis (RA) is an ...
Breaking Biology Technology:Photonics R&D Leader Bob Hainsey Joins SPIE Technical Staff 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 3BioMedomics, Inc. Closes $690K Round of Financing 2Panama’s First Umbilical Cord Stem Cell Clinical Trial for Rheumatoid Arthritis Approved by Comité Nacional de Bioética de la Investigación Institutional Review Board 2Panama’s First Umbilical Cord Stem Cell Clinical Trial for Rheumatoid Arthritis Approved by Comité Nacional de Bioética de la Investigación Institutional Review Board 3
... Sept. 8 /PRNewswire-FirstCall/,-- Concuity, a healthcare division ... a leading,provider of contract management and revenue ... today announced that Valley Baptist Health,System has ... more,accurately calculate payments from managed care and ...
... (Nasdaq: CTICD ; and MTA: CTIC) announced ... Listing Qualifications Staff of The NASDAQ Stock,Market LLC ... with the,$50,000,000 minimum market value of listed securities ... the Company does not,comply with NASDAQ Marketplace Rule ...
... Just as test pilots push planes to explore ... Standards and Technology (NIST) are probing the newest ... the nanoscale. Better nanoscale measurements are critical for ... and nanomanufacturing industries. , This new microscope technology ...
Cached Biology Technology:Valley Baptist Health System Selects Concuity's ClearContracts to More Accurately Calculate Payments from Managed Care and Government Payers 2Valley Baptist Health System Selects Concuity's ClearContracts to More Accurately Calculate Payments from Managed Care and Government Payers 3Valley Baptist Health System Selects Concuity's ClearContracts to More Accurately Calculate Payments from Managed Care and Government Payers 4CTI Receives NASDAQ Letter 2CTI Receives NASDAQ Letter 3NIST studies how new helium ion microscope measures up 2
... SYBR Green II RNA gel stain ... has bright fluorescence when bound to RNA and ... use with either formaldehyde/agarose or polyacrylamide gels using ... stains 50 minigels. A 1 mL unit size ...
Sirtuin 7 (SIRT7) Rabbit anti-Human Polyclonal Antibody Immunogen: Synthetic peptide - KLH conjugated Family: Other Recommended Storage: Long term: -20C; Short term: +4C...
... RSH-4000 is the only microplate sealer with ... long walkaway times with a variety of ... Fully automated with integrated stacker and 240-plate ... EX for use in small workcells , ...
... Reagents for the differentiation of mouse embryonic ... bodies exist in the midbrain, where they ... the ventral tegmental area, and the retrorubral ... to extensive forebrain dopamine innervation ( e.g.projections ...
Biology Products: