Eco-friendly and biodegradable cellulose hydrogels produced from low cost okara: towards non-toxic flexible electronics

被引:0
作者
Xi Cui
Jaslyn J. L. Lee
Wei Ning Chen
机构
[1] Nanyang Technological University,Interdisciplinary Graduate School
[2] Nanyang Technological University,Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute
[3] Nanyang Technological University,School of Chemical and Biomedical Engineering
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Scientific Reports | / 9卷
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摘要
With increasing resource shortage and environmental pollution, it is preferable to utilize materials which are sustainable and biodegradable. Side-streams products generated from the food processing industry is one potential avenue that can be used in a wide range of applications. In this study, the food by-product okara was effectively reused for the extraction of cellulose. Then, the okara cellulose was further employed to fabricate cellulose hydrogels with favorable mechanical properties, biodegrablability, and non-cytotoxicity. The results showed that it could be biodegraded in soil within 28 days, and showed no cytotoxicity on NIH3T3 cells. As a proof of concept, a demostration of wearable and biocompatible strain sensor was achieved, which allowed a good and stable detection of human body movement behaviors. The okara-based hydrogels could provide an alternative platform for further physical and/or chemical modification towards tissue engineering, medical supplies, or smart biomimetic soft materials.
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