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Latest Biological interface engineering Stories

2012-04-30 20:03:15

Biomedical engineers at Tufts University's School of Engineering have demonstrated the first all-polymeric bone scaffold material that is fully biodegradable and capable of providing significant mechanical support during repair. The new technology uses micron-sized silk fibers to reinforce a silk matrix, much as steel rebar reinforces concrete. It could improve the way bones and other tissues are repaired following accident or disease. The discovery is reported in the Proceedings of the...

2012-04-23 13:31:39

A lot of people were skeptical when two young California-based researchers set out more than a decade ago to create a completely human-derived alternative to the synthetic blood vessels commonly used in dialysis patients. Since then, they've done that and more. "There were a lot of doubts in the field that you could make a blood vessel, which is something that needs to resist pressure constantly, 24-7, without any synthetic materials in it," explains Nicolas L'Heureux, a co-founder and the...

2012-02-14 14:24:44

The biological scaffold that gives structure to a heart valve after its cellular material has been removed can be freeze-dried and stored for later use as a tissue-engineered replacement valve to treat a failing heart, as described in an article in Tissue Engineering, Part C: Methods, a peer-reviewed journal from Mary Ann Liebert, Inc. (http://www.liebertpub.com). The article is available free online at http://www.liebertpub.com/ten Shangping Wang and colleagues from Leibniz University,...

2012-02-10 16:08:19

Researchers at Northwestern University have developed a new method for creating scaffolds for tissue engineering applications, providing an alternative that is more flexible and less time-intensive than current technology. A paper describing the results, "Low-Pressure Foaming: A Novel Method for the Fabrication of Porous Scaffolds for Tissue Engineering," was featured in the February issue of the journal Tissue Engineering. Through tissue engineering, researchers seek to regenerate...

2012-02-10 14:08:23

Scientists at the University of California, San Diego have developed a new method for making scaffolds for culturing tissue in three-dimensional arrangements that mimic those in the body. This advance, published online in the journal Advanced Materials, allows the production of tissue culture scaffolds containing multiple structurally and chemically distinct layers using common laboratory reagents and materials. According to the UC San Diego researchers, this process is more affordable and...

2011-11-17 03:18:12

Scientists are reporting development and successful initial testing of the first practical "smart" material that may supply the missing link in efforts to use in medicine a form of light that can penetrate four inches into the human body. Their report on the new polymer or plastic-like material, which has potential for use in diagnosing diseases and engineer new human tissues in the lab, appears in ACS' journal Macromolecules. Adah Almutairi and colleagues explain that near-infrared (NIR)...

2011-10-03 22:51:28

Previously inaccessible target sites may be reached for diagnosis and treatment using this material Scientists at the University of California, San Diego have developed what they believe to be the first polymeric material that is sensitive to biologically benign levels of near infrared (NRI) irradiation, enabling the material to disassemble in a highly controlled fashion. The study represents a significant milestone in the area of light-sensitive material for non-invasive medical and...

2011-09-22 06:18:21

(Ivanhoe Newswire) -- New research shows lasers may aid in neuron regeneration. The discovery has the potential to help diseases such as Alzheimer's and Parkinson's. In the study, investigators used lasers to build tiny, intricate scaffolds that can be used as delivery vehicles to drop cells off at damaged locations. They showed their ability to effectively harness the growth of neuronal cells. Repairing neural tissue -- such as peripheral nerves, spinal cord and the brain -- has long been...

2011-09-20 11:11:23

Lasers have been used to fabricate tiny scaffolds to be used as delivery vehicles to drop cells off at damaged locations and help treat diseases such as Alzheimer's and Parkinson's. Owing to the versatility and accuracy of lasers, the structures have shown significant potential for facilitating the growth of cells and could be designed specifically to meet the individual needs of a variety of cells. In their study published today, Tuesday 20 September, in IOP Publishing's journal...


Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.