Light on silicon better than copper?

DURHAM, N.C. — Step aside copper and make way for a better carrier of information — light.
As good as the metal has been in zipping information from one circuit to another on silicon inside computers and other electronic devices, optical sig…

Growing Human Skin in Laboratory Can Prematurely Age Cells

Children who receive laboratory-expanded sheets of their own skin to cover severe burns are saved from certain death, but their new skin can have the cellular age of an 80 year old, according to a study at Duke University Medical Center. The process of growing small patches of human skin into larger sheets, called tissue engineering, makes cells divide so many times that the skin becomes prematurely aged at a cellular level.

New Microprobe Shines Light Below Organ Wall Surfaces

Photonics and ultrasound engineering researchers from Duke University and The George Washington University have collaborated to design an optical scanner miniaturized enough to be inserted into the body, where its light beams could someday detect abnormalities hidden in the walls of the colon, bladder or esophagus. The experimental device, called an “electrostatic micromachine scanning mirror for optical coherence tomography,” is described in an article published in the April 15, 2003, issue of the research journal Optics Letters.

Antiepileptic Drug Useful for Weight Loss in Obese Adults

Researchers at Duke University Medical Center have concluded, in a preliminary study published today, that the drug zonisamide (trade name Zonegran), an anticonvulsant used to treat some types of epileptic seizures, has appetite-reducing effects that could eventually offer hope to thousands of people as an effective therapy for weight loss.

Antiepileptic Drug Useful for Weight Loss in Obese Adults

Researchers at Duke University Medical Center have concluded, in a preliminary study published today, that the drug zonisamide (trade name Zonegran), an anticonvulsant used to treat some types of epileptic seizures, has appetite-reducing effects that could eventually offer hope to thousands of people as an effective therapy for weight loss.