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New Engineering Center Hopes to Transform Sensor Technology

May 3, 2006

The MIRTHE (Mid-Infrared Technologies for Health and the Environment) project's work will range from fundamental science to applied technology. Researchers will collaborate with industry to turn technology into commercial products, and with educational outreach partners to improve science and engineering education.


BALTIMORE (AScribe Newswire) -- Fourteen researchers are part of a new national engineering research center that they say will revolutionize sensor technology, yielding devices that have a unique ability to detect minute amounts of chemicals in the atmosphere, whether they are emitted from factories or exhaled in human breath.

Funded by the National Science Foundation and based at Princeton University, the center's goal is to produce devices that are so low in cost and so easy to use that they will transform the way doctors care for patients, local agencies monitor air quality, governments guard against attacks and scientists understand the evolution of greenhouse gases. Dubbed MIRTHE (for Mid-Infrared Technologies for Health and the Environment), the project will combine the work of about 40 faculty members, 30 graduate students and 30 undergraduates from Princeton, Johns Hopkins, UMBC, Rice University, Texas A&M University and City College of New York.

Funding for the center, which is expected to include industrial support in addition to the NSF funding, could exceed $40 million over 10 years. NSF funding began May 1, with $2.97 million allotted for the project's first year.

At Johns Hopkins, researchers from the university's Krieger School of Arts and Sciences, Whiting School of Engineering, School of Medicine and Bloomberg School of Public Health are working on projects ranging from sensors that allow doctors to diagnose and monitor diseases based on the chemical composition of a patient's breath to a wireless network that can measure the chemical, biological and physical attributes of soil in situ.

"The breath of patients with kidney and liver diseases emit certain chemical biomarkers, including ammonia," said Terence H. Risby of the Bloomberg School of Public Health. "It is our goal to build and evaluate a breath ammonia monitor that will improve treatment for kidney and liver disease. The collection of exhaled breath has several major potential advantages in patient care, as it is non-invasive and entirely safe for both patients and medical personnel. In fact, one long-term goal of this project is the development of an ammonia breath monitor suitable and safe to use by patients for home dialysis."

Katalin Szlavecz, a geologist and associate research professor at the Krieger School, said that the goal of her project -- developing a wireless sensor network that can continuously send data to laboratory computers from various settings in woodlands and fields -- is to better understand how various processes in the soil contribute to greenhouse gas emissions.

"The sensors will continuously collect environmental data at a scale that was not previously possible," Szalvecz said. "With these tools, we will obtain unprecedented data, improving our ability to better estimate the contribution of soil processes to greenhouse emission."

Other MIRTHE participants will explore sensors that monitor air quality and detect the presence of chemical weapons.

The center's investigators also are collaborating with dozens of industrial partners to turn technology into commercial products, and are working with several educational outreach partners who will use the research as a vehicle for improving science and engineering education. The work will run the gamut from fundamental science to applied technology.

"The sensors we are creating are like iPods compared to the table-top-sized computers of the past," said Claire Gmachl, associate professor of electrical engineering at Princeton University, and the center's director. "Today's state-of-the-art sensors are very sensitive, but require an expert to operate and are bulky and expensive. MIRTHE's version is to make sensors with the same, or better, level of sensitivity at a fraction of the size and cost."

In addition, MIRTHE researchers hope to educate a new generation to carry the center's knowledge to leaders in industry, government and academia. The center's participants also plan to allow students (college and K-12) to participate in hands-on science and engineering projects.
 


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