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Related Experiment Videos

Nanoporous noninvasive cellular electrical activity-based analysis devices.

Shalini Prasad1, Jorge Quijano

  • 1Department of Electrical and Computer Engineering, Portland State University, 160-11, FAB, 1900 SW 4th Avenue, Portland, OR 97201, USA. prasads@cecs.pdx.edu <prasads@cecs.pdx.edu>

Clinics in Laboratory Medicine
|April 10, 2007
PubMed
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Researchers developed nanoporous alumina membranes for long-term cell integration, enabling novel biosensing and drug delivery platforms with potential for in vivo therapeutic applications.

Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Cell Biology

Background:

  • Microtechnology and nanotechnology are advancing biomedical applications, shifting from in vitro diagnostics to in vivo therapeutics and sensing.
  • Integrating cells with inorganic materials is key for developing new sensing platforms.
  • Nanoporous silicon-based microenvironments offer potential for long-term cell maintenance.

Purpose of the Study:

  • To create biocompatible nanoporous alumina membranes for cell integration.
  • To develop a platform for in situ recording of cellular electrical activity in response to microenvironment changes.
  • To demonstrate the viability, proliferation, and functionality of cells within these microenvironments.

Main Methods:

  • Fabrication of nanoporous, biocompatible alumina membranes.

Related Experiment Videos

  • Integration of these membranes into silicon-based microdevices.
  • Culturing and studying cell interactions with the nanoporous alumina substrates.
  • Assessing cell viability, proliferation, and functionality.

    • Main Results:

    • Successful long-term maintenance of cells in nanoporous silicon-based microenvironments.
    • Demonstrated fidelity of the system in terms of cell viability, proliferation, and functionality.
    • Validated the use of microfabricated nanoporous membranes for in vitro cell-based assays (sensing, drug delivery).

    Conclusions:

    • Nanoporous alumina membranes provide a viable platform for long-term cell integration.
    • The developed system is suitable for in situ monitoring of cellular electrical activity.
    • These membranes show promise for both in vitro applications and potential in vivo therapeutic immunoisolation.