Prof. Michael J. Sailor
Department of Chemistry & Biochemistry, UC San Diego
Materials Science and Engineering, Department of Bioengineering, Department of Nanoengineering
April 19, 2016 | 12:00 to 01:00 | 490 Cory Hall
Host: Kris Pister
There is increasing emphasis on electronic and micromechanical devices that incorporate graceful or catastrophic degradation into their designs. Whereas complete disintegration might be a convenience for disposable devices designated for use in the field (such as air or water quality monitors, wireless communications, etc.), it is considered a necessity for many of the emerging sensing and drug delivery devices intended for use in humans. Although bulk silicon is too stable to exhibit any significant degradation in the environment or in the body, nanoscale silicon is readily degradable. This presentation will discuss the chemistry and photochemistry of nanostructured porous silicon, with emphasis on the application of micron-size or smaller particles as non-toxic chemical sensor probes for various in vitro and in vivo imaging and drug delivery tasks. Reactions to trigger or control the programmed degradation of porous silicon will be discussed.
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