Bioengineering

Biotechnology

'Aging limits artery repair' in older patients

Posted in Bioengineering on Fri June 06, 2008
'Aging limits artery repair' in older patients

Aging patients may be less able to repair blood vessels and arteries after acute injury, anti-aging physicians suggest. ... Continue Reading

Pittsburgh powder performs finger 'miracle'

A remarkable medical occurrence in the USA has sparked hopes that regenerative technology can be taken to new levels. ... Continue Reading

Fantastic Voyage: A New Nanoscale View Of The Biological World

Posted in Bioengineering on Mon October 09, 2006

Echoing the journey through the human body in Fantastic Voyage, doctors might soon be able to track individual donor cells after a transplant, or to find where and how much of a cancer treatment drug there is within a cell. New technology described in a study published today in the open access journal Journal of Biology makes it possible to image and quantify molecules within individual mammalian or bacterial cells. Claude Lechene and colleagues describe the development of multi-isotope imaging mass spectrometry (MIMS), which has applications in all fields of biology and biomedical research. ... Continue Reading

Engineering electrically conducting tissue for the heart

Posted in Bioengineering on Tue August 29, 2006

Patients with complete heart block, or disrupted electrical conduction in their hearts, are at risk for life-threatening rhythm disturbances and heart failure. The condition is currently treated by implanting a pacemaker in the patient's chest or abdomen, but these devices often fail over time, particularly in infants and small children who must undergo many re-operations. Researchers at Children's Hospital Boston have now taken preliminary steps toward using a patient's own cells instead of a pacemaker, marking the first time tissue-engineering methods have been used to create electrically conductive tissue for the heart. Results appear in the July issue of the American Journal of Pathology. ... Continue Reading

Your Upgrade Is Ready

Posted in Bioengineering, Nanotechnology on Mon May 08, 2006

Evolution has done its best, but there's a limit to how many plug-and-play neural implants, supercharged blood cells, strong-as-steel bone replacements and mind-controlled PCs you can expect from randomly colliding natural forces. Wanna be Superman? Better call the engineers. ... Continue Reading

Molecule Targets And Kills Tumor Cells, Starves Blood Supply

Posted in Bioengineering on Wed March 29, 2006

A man-made chemical compound called ARC causes tumor cells to die but leaves normal cells unharmed, researchers at the University of Illinois at Chicago report in a study highlighted in the March 15 issue of Cancer Research. ARC also proved to have strong anti-angiogenic properties, showing promise as an inhibitor of new blood vessel formation in tumors. ... Continue Reading

Bioengineers Create Stable Networks Of Blood Vessels

Posted in Bioengineering on Sat March 04, 2006

Yale biomedical engineers have created an implantable system that can form and stabilize a functional network of fine blood vessels critical for supporting tissues in the body, according to a report in the Proceedings of the National Academy of Sciences. ... Continue Reading

Dartmouth, GlycoFi Researchers Make Leap In Protein Bioengineering

Posted in Bioengineering on Wed January 25, 2006

Investigators at Dartmouth's Thayer School of Engineering, the Dartmouth Medical School, and the biotechnology firm GlycoFi, Inc., report a breakthrough in using yeast to produce antibodies with human sugar structures. Antibodies are proteins with sugars attached to them, and they are emerging as a major class of drugs in the treatment of cancer. In the global effort to increase the potency of antibodies, the interdisciplinary work by the Dartmouth/GlycoFi team, published in the February issue of Nature Biotechnology, represents a major advance. The work shows that antibodies with increased cancer-killing ability can be produced by controlling the sugar structures that are attached to them. ... Continue Reading

Live cells jetted with electric fields

Posted in Bioengineering on Tue January 24, 2006

A team of biophysicists in the UK has used a form of ink-jet printing to create "jets" of living cells for the first time. Suwan Jayasinghe of University College London and colleagues at Kings College London say their technique, which does not destroy the cells, could be used to grow biological tissue or even human organs. The technique involves jetting biological cells from a needle at fields of up to 30 kilovolts. ... Continue Reading

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