Sascha Abramson has been investigating new methods to ensure that polymer medical implants in the human body don’t fail. Abramson looked at degradable polymers, ones the body can ultimately absorb, to gain a deeper understanding of how and why their structures change – crucial parts of a puzzle that must be solved for polymers to perform predictably and successfully in medical implants.
Her research was conducted as a postdoctoral associate at Rutgers’ New Jersey Center for Biomaterials in the laboratory of Joachim Kohn, Board of Governors Professor of Chemistry and Chemical Biology, at Rutgers, The State University of New Jersey. Kohn and Abramson co-authored a paper on her findings presented in New Orleans today at the 225th American Chemical Society (ACS) national meeting.
Abramson points out that polymers or plastics are different from other materials that have solid, liquid and gaseous phases. Some polymers exhibit two solid states – a rubbery state and a glassy state. “There is a transition in polymers where they go from a hard, glassy state to a rubbery state. They leave their glassy state when they cross a threshold temperature we call the glass transition temperature,” said Abramson.
Bill Haduch | EurekAlert!
NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures
17.11.2017 | National Institute of Standards and Technology (NIST)
High speed video recording precisely measures blood cell velocity
15.11.2017 | ITMO University
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
20.11.2017 | Earth Sciences
20.11.2017 | Physics and Astronomy
17.11.2017 | Physics and Astronomy