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Electric conductive pattern element fabricated using commercial inkjet printer for paper-based analytical devices.
Yu Matsuda1, Shobu Shibayama1, Keigo Uete1
1†EcoTopia Science Institute, and ‡Department of Micro-Nano Systems Engineering, Nagoya University, Furo-Cho, Chikusa, Nagoya, 464-8603, Japan.
Analytical Chemistry
|May 9, 2015
Summary
Researchers developed inkjet-printed conductive patterns for paper-based analytical devices (PADs). This innovation enhances PAD functionality for applications like valves and heaters without compromising cost-effectiveness or portability.
Area of Science:
- Materials Science
- Analytical Chemistry
- Electrical Engineering
Background:
- Paper-based analytical devices (PADs) offer cost-effective, portable, and disposable platforms for various analyses.
- Traditional PADs have limitations in performing complex functions requiring active control or heating.
- Integrating electronic components onto PADs can significantly expand their capabilities.
Purpose of the Study:
- To introduce inkjet-printed conductive patterns as a method to enhance the functionality of paper-based analytical devices (PADs).
- To investigate the characteristics and applications of an inkjet-printed heater integrated onto paper.
- To demonstrate the feasibility of using printed heaters for functions previously challenging for PADs, such as valves, concentrators, and reaction heat sources.
Main Methods:
- Fabrication of electric conductive patterns using a commercial inkjet printer on paper.
- Integration of an inkjet-printed heater onto a paper substrate.
- Experimental investigation of the inkjet-printed heater's performance as a valve, concentrator, and heat source.
Main Results:
- Successfully fabricated inexpensive, fast, and simple electric conductive patterns using inkjet printing.
- Demonstrated the inkjet-printed heater's ability to function as a valve and concentrator by controlling fluid evaporation.
- Showcased the utility of the printed heater as a localized heat source for chemical reactions on PADs.
- Confirmed that the integration of printed electric circuits enhances PAD applications without sacrificing cost efficiency, disposability, or portability.
Conclusions:
- Inkjet-printed conductive patterns offer a versatile and cost-effective method to expand the applications of paper-based analytical devices (PADs).
- The developed inkjet-printed heater effectively performs critical functions like fluid control and localized heating, overcoming previous limitations of PADs.
- The combination of printed electronics and PADs presents significant potential for developing advanced, low-cost analytical tools.

