Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 2, Issue 1, Pages 1-6Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am9006148
Keywords
thread; paper; diagnostics; 3D microfluidics; low-cost sensors
Funding
- Monash University and the Department of Chemical Engineering
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This paper describes a new and simple concept for fabricating low-cost, low-volume, easy-to-use microfluidic devices using threads. A thread can transport liquid via capillary wicking without the need of a barrier; as it is stainable, it is also a desirable material for displaying colorimetric results. When used in sewing, threads have 3D passageways in sewed materials. The wicking property and flexibility of thread make it particularly suitable to fabricate 3D microfluidic devices. Threads can also be used with other materials (e.g., paper) to make microfluidic devices for rapid qualitative or semiquantitative analysis. These thread-based and thread-paper-based devices have potential applications in human health diagnostics, environmental monitoring, and food safety analysis, and are particularly appropriate for the developing world or remote areas, because of their relatively low fabrication costs.
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