HOME >> BIOLOGY >> NEWS
Scientists find new way to manipulate DNA

ANN ARBOR, Mich.---Polymers, large molecules comprised of chains of repeating structures, are used in everything from the coatings on walls of ships and pipes to reduce flow drag to gene therapy.

But long polymer chains are subject to breakage, called scission, and a new study by the University of Michigan shows that as it turns out, much of what scientists previously thought about why polymers break when subjected to strong flows, such as waves crashing against a ship's bow, was wrong.

This is important for a few reasons, said Michael Solomon, associate professor in the Department of Chemical Engineering, Macromolecular Science and Engineering Program. Broken polymers don't function as intended, and if scientists don't know what causes them to break, they can't keep them from breaking, nor can they design them to break in specific places.

For the past 40 years, scientists have not understood exactly which forces caused scission, said Solomon, who is the co-author on a paper published last week in the Proceedings of the National Academy of Sciences. The paper, "Universal scaling for polymer chain scission in turbulence," defines which flow forces and at what levels those forces cause polymers to break in turbulence.

"This paper understands how they are breaking in a new way that resolves some issues that have been present for 40 years," Solomon said.

The experiments that yielded the prevailing scission theories, Solomon said, did not take into account turbulence in the flow that occurred during the experiments, and how that turbulence attributed to polymers breaking. Those experiments measured only laminar or smooth flow, which is turbulent free.

Yet, during their own experiments, the U-M team discovered that flow turbulence did indeed exist and that it was impacting the polymer quite a bit. Through experiments that accounted for turbulent flow, Solomon and co-authors Steven Ceccio, with appointmen
'"/>

Contact: Laura Bailey
baileylm@umich.edu
734-647-7087
University of Michigan
15-Nov-2006


Page: 1 2

Related biology news :

1. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
2. Scientists prove that disputed Korean stem cell line comes from an unfertilized egg and not cloning
3. Scientists move closer to bio-engineered bladders
4. Scientists find stem cell switch
5. Scientists discover new way to study nanostructures
6. Scientists a step closer to understanding how anaesthetics work in the brain
7. Scientists to make news at Computational Biology Conference
8. Accident-prone? Scientists link brain function to knee injuries
9. Scientists take next step in understanding potential target for ovarian cancer treatment
10. Scientists find brown fat master switch
11. Scientists identify 2 distinct Parkinsons networks

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/14/2019)... ... 2019 , ... Highmark Health’s VITAL Innovation Platform has been named the winner ... is one of the top honors in the awards. Winners were announced at an ... a community event on May 10 that also raises funds for Carnegie Science Center ...
(Date:3/11/2019)... ... March 11, 2019 , ... A new report published by the Family Equality ... generations; 77% of those aged 18 to 35 already have or are considering having ... 55 and older.(1) Among all LGBTQ prospective parents, 41% are considering assisted reproductive technology ...
(Date:3/9/2019)... British Columbia (PRWEB) , ... March 07, 2019 ... ... specializing in manufacturing neurological and cellular stress research tools today announced the publication ... antibody for Parkinson’s Disease treatment. The antibody, still at a pre-clinical stage of ...
Breaking Biology News(10 mins):
(Date:3/14/2019)... ... March 14, 2019 , ... ON NOVEMBER 27, 2018, ... the Eye Machine Canada Inc., had been given approval to begin a clinical ... Macular Degeneration (AMD). , The previous month, the medical devices bureau of Health ...
(Date:3/12/2019)... N.J. and LIÈGE, Belgium (PRWEB) , ... March ... ... complete solutions for sample preparation and epigenetics research, has launched its third generation ... features of the second generation instrument with a user-friendly interface, automated processing, ...
(Date:3/5/2019)... ... March 05, 2019 , ... San Fransisko, or Sisko for short, is a ... years old to pursue a career in dressage. According to Deborah, dressage came ... that she’d ever worked with. Unfortunately, Sisko suffered an injury while playing in ...
(Date:2/26/2019)... WHITEHOUSE, N.J. (PRWEB) , ... February 26, 2019 ... ... University in 2012 when Visikol Co-Founder Dr. Thomas Villani developed the Visikol® tissue ... a company and has since transitioned from a products focused company to primarily ...
Breaking Biology Technology:
Cached News: