Journal
ADVANCED MATERIALS TECHNOLOGIES
Volume 2, Issue 7, Pages -Publisher
WILEY
DOI: 10.1002/admt.201700021
Keywords
plant growth; rapid fabrication; room temperature fabrication; soft electronics; wearable sensors
Categories
Funding
- Hong Kong, Macao and Taiwan scientific and technological cooperation projects [2015DFT30150]
- National Natural Science Foundation of China [31571918]
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Rapid fabrication of flexible and stretchable sensors is essential for the emerging applications of wearable devices. In this study, a chitosan-based water ink realizes fabrication of flexible and stretchable stain sensor by simply writing the ink and leaving it to dry for approximate to 15 min at room temperature. It is found that chitosan is an excellent binding material. The fabricated sensor shows an excellent gauge factor of 64 within strain 1%-8%, and can be stretched up to 60%. More importantly, the sensor can be directly written on the subject, and sensors written on plants show that plants can response to mechanical injuries within a few minutes. These results show that this method reduces the energy and time consumption in the fabrication procedure, realizes direct fabrication of sensors on subjects for wearable monitoring, and meets the requirements for personalized and on-site applications. So, this chitosan-based ink provides an attractive strategy for the fabrication and application of wearable devices.
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