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Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation
Published on: September 19, 2017
Towards non- and minimally instrumented, microfluidics-based diagnostic devices
Bernhard Weigl1, Gonzalo Domingo, Paul Labarre
1Diagnostic Development Group, PATH, 1455 NW Leary Way, Seattle, WA 98107, USA. bweigl@path.org
Lab on a Chip
|November 22, 2008
Summary
Disposable microfluidic devices offer a low-cost, instrument-free solution for diagnostics in resource-limited settings. This technology expands accessible health monitoring beyond current rapid assay strip tests.
Area of Science:
- Biomedical Engineering
- Point-of-Care Diagnostics
- Microfluidics
Background:
- Traditional laboratory diagnostics are often uneconomical or impractical in settings like home healthcare, developing countries, or emergency response.
- Existing disposable diagnostic technologies, such as immunochromatographic assays, have limitations in scope and application.
- There is a need for advanced, yet simple, diagnostic tools suitable for diverse and challenging healthcare environments.
Purpose of the Study:
- To review advancements in disposable, low-cost, easy-to-use microfluidic diagnostic devices.
- To explore microfluidic technologies that eliminate the need for external instruments or power sources.
- To showcase the potential of microfluidics in expanding point-of-care diagnostic capabilities.
Main Methods:
- Review of current literature and technological developments in microfluidic diagnostics.
- Presentation of microfluidic functional elements (mixers, separators, detectors).
- Demonstration of complete microfluidic devices operating without moving parts or external power.
Main Results:
- Microfluidics enables a wider range of diagnostic assays in a disposable, strip-test-like format.
- Development of microfluidic components and devices that are self-contained and require no external instrumentation.
- Successful demonstration of microfluidic systems functioning without external power or moving parts.
Conclusions:
- Disposable microfluidic devices represent a significant advancement for accessible diagnostics.
- This technology holds promise for overcoming limitations of current point-of-care testing methods.
- Further development can lead to widespread adoption of instrument-free microfluidic diagnostics in various healthcare settings.

