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Flexible and Disposable Sensing Platforms Based on Newspaper

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posted on 05.12.2016, 00:00 by MinHo Yang, Soon Woo Jeong, Sung Jin Chang, Kyung Hoon Kim, Minjeong Jang, Chi Hyun Kim, Nam Ho Bae, Gap Seop Sim, Taejoon Kang, Seok Jae Lee, Bong Gill Choi, Kyoung G. Lee
The flexible sensing platform is a key component for the development of smart portable devices targeting healthcare, environmental monitoring, point-of-care diagnostics, and personal electronics. Herein, we demonstrate a simple, scalable, and cost-effective strategy for fabrication of a sensing electrode based on a waste newspaper with conformal coating of parylene C (P-paper). Thin polymeric layers over cellulose fibers allow the P-paper to possess improved mechanical and chemical stability, which results in high-performance flexible sensing platforms for the detection of pathogenic E. coli O157:H7 based on DNA hybridization. Moreover, P-paper electrodes have the potential to serve as disposable, flexible sensing platforms for point-of-care testing biosensors.