Veeralingam, Sushmitha and Sahatiya, Parikshit and Kadu, Anand and Mattela, Venkat and Badhulika, Sushmee
(2019)
Direct, one step growth of NiSe2 on cellulose paper: A low cost, flexible, wearable with smartphone enabled multifunctional sensing platform for customized non-invasive personal healthcare monitoring.
ACS Applied Electronic Materials.
pp. 1-26.
ISSN 2637-6113
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Abstract
Monitoring of personal healthcare requires multifunctional sensors which can sense both chemical and physical stimuli. One of the possible solutions is the fabrication of low-cost, disposable “one time use” functional nanomaterials based sensors which can sense multiple health parameters and the sensor data can be wirelessly transmitted to the smartphone for further processing. This report is a first demonstration of the direct growth of NiSe2 on cellulose paper by solution processed hydrothermal method and its application for smart personal healthcare monitoring system which includes non-invasive periodontal diagnosis to monitor oral health by the use of human saliva, breath analyzer for various breath related diseases and gesture sensor for deaf, dumb and aurally challenged patients to communicate with the world. The fabricated sensor can be customized for a specific sensing with a dedicated user friendly Android application which can be accessed remotely by smartphone. Detailed sensing mechanism of each sensor is explained in terms of charge transport and electron transfer mechanisms. Furthermore, the sensing performance doesn’t fluctuate even after 500 bending cycles for both chemical and physical stimuli thus enabling low cost yet robust and reliable monitoring. Successful development of such versatile platform find wide applications in the field of smart healthcare, medical devices and Internet of Things
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