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Flexible Implantable LED for Prostate Cancer Detection, Other Biosensing Applications

September 26th, 2011 Gavin Corley Diagnostics, Oncology

A research team from the Korean Advanced Institute of Science and Technology has developed a new type of flexible, bio-compatible LED for bio sensing applications. The device, which is described in detail in the journal Nano Energy, is made up of gallium nitride (GaN) on a flexible liquid crystal polymer substrate and is coated with a water resistant and bio-compatible material.

According to the researchers, the use of highly efficient GaN LEDs has distinct advantages for implanted biosensing applications where a long device life is required.  However, up until now it had been difficult to manufacture these LEDs in a flexible bio-compatible package.

In their paper the researchers also demonstrated the use of their device as part of a larger bio-sensor module for sensing prostate specific antigen (PSA). The module comprised a light source made up of the flexible GaN LED, an electroluminescence detector, and a reaction chip with biomolecules immobilized on the glass surface. The module demonstrated very high sensitivity to PSA concentrations on the reaction chip which the researchers believe could be used for implanted prostate cancer detection.

Announcement: Cancer detection from an implantable, flexible LED

Full article in Nano Energy: Water-resistant flexible GaN LED on a liquid crystal polymer substrate for implantable biomedical applications

Gavin Corley

Gavin holds a first-class Bachelor’s degree in Electronic Engineering degree from the University of Limerick and a Ph.D. in Biomedical Engineering from the National University of Ireland, Galway. He is currently a post-doctoral research and project leader at the NUI Galway where he has spent the last 2 years leading the product development and commercialization of two novel technologies for the management of varicose veins and chronic venous leg ulcers. He has published several research papers in the fields of anatomy, physiology and medical physics and is the lead author of one patent application to date. In his free time Gavin has been known to swim, cycle and hum a tune or two.

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