Edward Honein has joined the Laboratory of Nanobiotechnology at EPFL from the American University of Beirut. Under the guidance of Professor Ardemis Boghossian, Honein’s summer project aims to develop a nanotube-based biosensor.
Biosensors are devices that can detect biological molecules (“analytes”) in blood, air or water. They are increasingly being used in the fields of biological research, medical diagnostics, drug development and even security. In spite of ongoing advancements, there is still a demand for enhanced portable bio sensing devices that are convenient to use for Doctors as well as patients. The development of such devices would provide methods for continuous, real-time monitoring of biomarker levels, which is essential for a number of diseases such as diabetes.
Edward Honein’s summer project plays a major role exactly in this situation: He is specifically designing an optical, microfluidic biosensor that can detect single biomolecules in a scalable, high-throughput method.
The biosensor itself is made up of carbon nano tubes, which are rolled-up sheets of graphene. Nanotubes have lengths up to several centimeters and diameters as small as 1 nanometer. Their unique physical properties have paved the way for a whole new world of technologies. One of these properties is emitting light in the near-infrared spectrum (700 to 2500 nm wavelength) when excited with a laser.
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Source: AZO NANO