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Last updated on April 19, 2014 at 13:20 EDT

Latest Roger Narayan Stories

2011-12-13 19:13:03

Researchers from North Carolina State University, Sandia National Laboratories, and the University of California, San Diego have developed new technology that uses microneedles to allow doctors to detect real-time chemical changes in the body — and to continuously do so for an extended period of time. “We´ve loaded the hollow channels within microneedles with electrochemical sensors that can be used to detect specific molecules or pH levels,” says Dr. Roger Narayan,...

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2010-08-25 19:28:25

Researchers from North Carolina State University have developed extremely small microneedles that can be used to deliver medically-relevant nanoscale dyes called quantum dots into skin "“ an advance that opens the door to new techniques for diagnosing and treating a variety of medical conditions, including skin cancer."We were able to fabricate hollow, plastic microneedles using a laser-based rapid-prototyping approach," says Dr. Roger Narayan, one of the lead researchers, "and found...

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2010-03-22 08:39:29

A team led by researchers from North Carolina State University has published a paper that describes the use of a technique called atomic layer deposition to incorporate "biological functionality" into complex nanomaterials, which could lead to a new generation of medical and environmental health applications. For example, the researchers show how the technology can be used to develop effective, low-cost water purification devices that could be used in developing countries. "Atomic layer...

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2008-01-08 11:30:00

Painful injections and blood draws may soon be a thing of the past. New polymerization technology may cause the sting of a needle piercing the skin to disappear. For years, biomedical engineers have made attempts to develop a way to deliver drugs intravenously without pain. Until now their closest creation has been a metal microneedle which tends to break upon impact with skin. Roger Narayan and his team of researchers at the University of North Carolina and Laser Zentrum Hanover have...