Abstract

Biomedical or Biological Micro-Electro-Mechanical- Systems (BioMEMS) have in recent years become increasingly prevalent and have found widespread use in a wide variety of applications such as diagnostics, therapeutics and tissue engineering. This paper reviews the interdisciplinary work performed in our group in recent years to develop micro-integrated devices to characterize biological entities. We present the use of electrical and mechanically based phenomena to perform characterization and various functions needed for integrated biochips. One sub-system takes advantage of the dielectrophoretic effect to sort and concentrate bacterial cells and viruses within a micro-fluidic biochip. Another sub-system measures impedance changes produced by the metabolic activity of bacterial cells to determine their viability. A third sub-system is used to detect the mass of viruses as they bind to micro-mechanical sensors. The last sub-system described has been used to detect the charge on DNA molecules as it translocates through nanopore channels. These devices with an electronic or mechanical signal output can be very useful in producing practical systems for rapid detection and characterization of cells for a wide variety of applications in the food safety and health diagnostics industries. The paper will also briefly discuss future prospects of BioMEMS and its possible impact and on bionanotechnology.

Original languageEnglish (US)
Article number54
Pages (from-to)340-353
Number of pages14
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5593
DOIs
StatePublished - Dec 1 2004
EventNanosensing Materials and Devices - Philadelphia, PA, United States
Duration: Oct 25 2004Oct 28 2004

Keywords

  • Biomems
  • Bionanotechnology
  • DNA
  • Dielectrophoresis
  • Integrated biochips
  • Lab-on-a-chip
  • Micromechanical sensors
  • Microorganisms
  • Nanopore

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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