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Related Experiment Video

Updated: Mar 14, 2026

Fabricating Cotton Analytical Devices
05:40

Fabricating Cotton Analytical Devices

Published on: August 30, 2016

7.2K

Fabricating Cotton Analytical Devices.

Shang-Chi Lin1, Min-Yen Hsu2, Chen-Meng Kuan1

  • 1Institute of Nanoengineering and Microsystems, National Tsing Hua University.

Journal of Visualized Experiments : Jove
|September 30, 2016
PubMed
Summary
This summary is machine-generated.

Researchers developed a low-cost, user-friendly cotton-based urinalysis device for rapid, multi-test diagnostics. This affordable analytical tool provides timely clinical information for early medical intervention.

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Area of Science:

  • Biomedical Engineering
  • Analytical Chemistry
  • Materials Science

Background:

  • Developing user-friendly, rapid, and affordable analytical devices is crucial for timely medical diagnostics.
  • Existing diagnostic tools may not be suitable for resource-limited settings or require scarce samples.
  • The need for point-of-care diagnostic tools that provide actionable clinical information is increasing.

Purpose of the Study:

  • To develop an inexpensive, user-friendly, and rapid cotton-based analytical device for urinalysis.
  • To demonstrate the feasibility of using cotton's natural properties for lateral flow-based assays.
  • To enable multiple urinalysis tests (nitrite, total protein, urobilinogen) without cross-contamination.

Main Methods:

  • Fabrication of a lateral flow-based analytical device utilizing cotton as the primary material.
  • Leveraging the natural absorptive properties and cellulose fiber structure of cotton for fluidic control.
  • Integrating test pads with specific chemical reagents for colorimetric detection of analytes.
  • Optimizing the arrangement of cotton and test pad materials to ensure efficient flow and stable colorimetric results.

Main Results:

  • Successful development of a cotton-based analytical device for urinalysis.
  • Demonstrated rapid, multi-test capability (nitrite, total protein, urobilinogen) with no cross-contamination.
  • Achieved persistent adherence of colorimetric results to the test pad due to material properties.
  • The device is inexpensive, easily fabricated, and user-friendly.

Conclusions:

  • The cotton-based analytical device offers a robust, low-cost solution for point-of-care urinalysis.
  • This technology has significant potential for early medical intervention and diagnostics in various settings.
  • The device's design leverages material properties for efficient and reliable diagnostic testing.