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U of T researchers create microchip that can detect type and severity of cancer
Date:9/28/2009

TORONTO, ON UofT researchers have used nanomaterials to develop a microchip sensitive enough to quickly determine the type and severity of a patient's cancer so that the disease can be detected earlier for more effective treatment.

Their groundbreaking work, reported Sept. 27 in Nature Nanotechnology heralds an era when sophisticated molecular diagnostics will become commonplace.

"This remarkable innovation is an indication that the age of nanomedicine is dawning," says Professor David Naylor, president of the University of Toronto and a professor of medicine. "Thanks to the breadth of expertise here at U of T, cross-disciplinary collaborations of this nature make such landmark advances possible."

The researchers' new device can easily sense the signature biomarkers that indicate the presence of cancer at the cellular level, even though these biomolecules genes that indicate aggressive or benign forms of the disease and differentiate subtypes of the cancer are generally present only at low levels in biological samples. Analysis can be completed in 30 minutes, a vast improvement over the existing diagnostic procedures that generally take days.

"Today, it takes a room filled with computers to evaluate a clinically relevant sample of cancer biomarkers and the results aren't quickly available," says Shana Kelley, a professor in the Leslie Dan Faculty of Pharmacy and the Faculty of Medicine, who was a lead investigator on the project and a co-author on the publication.

"Our team was able to measure biomolecules on an electronic chip the size of your fingertip and analyse the sample within half an hour. The instrumentation required for this analysis can be contained within a unit the size of a BlackBerry."

Kelley, along with engineering professor Ted Sargent a fellow lead investigator and U of T's Canada Research Chair in Nanotechnology and an interdisciplinary team from Princess Margaret Hospital and
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Contact: April Kemick
april.kemick@utoronto.ca
416-978-0100
University of Toronto
Source:Eurekalert

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