Friday
April 28
11:00 - 11:50am
Kelley 1005
Dr. Shalini Prasad
Assistant Professor
Electrical & Computer Engineering/Bioengineering
Portland
State University
Chip Detectives: Miniature Biosensors
The widespread use of micro and
nanofabrication technologies has resulted in the development of chips the size
of a postage stamp, capable of rapidly processing biological samples as small
as a single cell. The goal is to create fully automated systems that are on
chips, easy to use—and general, universal, and inexpensive. This talk
will first provide a general overview of the current biosensing technology by
applying the principles of optical and electrical detection. It will then focus
on the efforts of the Biomedical Microdevices and Nanotechnology laboratory at Portland State University
where the goal is to develop a wide range of biosensors and bio-detectors for
myriad applications, ranging from health care to environmental monitoring. A
wide range of sensing platforms will be presented-the use of basic silicon
micro electrode array technology for developing biological cell based sensors,
use of nanostructured material for electrical detection of biomolecules,
application of optical micro cavities as sensor platforms and the use of
multilayered light emitting devices as biochemical sensors. The long term goal
is to develop “system on a chip” devices suitable for
implementation in the ambient atmosphere. The multi-disciplinary nature of the
research will be highlighted; the integration of concepts of life sciences,
physical sciences with engineering towards the development of functional
platforms will be elucidated.
Biography:
Shalini Prasad received her
Bachelor’s degree in Electronics and Communication Engineering from University of Madras in 2000. She obtained her PhD in Electrical
Engineering from University
of California Riverside
in 2004. Her research interests are multi-disciplinary and are in the emerging
fields of Bio-Micro Electrical Mechanical Systems (Bio-MEMS) and
nanotechnology. Her current research interests are directed towards developing
scalable micro/nano platforms as sensors and detectors. Her work has been
reported in number of peer reviewed journals and popular press. She is the
recipient of the Association for Lab Automation Awards and Whitaker Award for
Bio-MEMS research.
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