Rapid Self-healing Bio-based Hydrogels for Monitoring Human Motion

DOI: 10.14416/j.ind.tech.2023.04.003


  • Nattakan Jaroenthai Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University
  • Pornnapa Kasemsiri Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University


Conductive hydrogel, Strain sensor, Biopolymer


Conductive hydrogels are widely used as strain sensor in medical application for detecting human motion and personal health care monitoring. This research aims to develop a conductive hydrogel based on gluten/guar gum (GG) crosslinked by borax and tannic acid (TA). The effect of TA content (0-5 wt%) on the conductivity and self-healing ability of hydrogels was investigated. The presence of TA at 1.25-5 wt% in the hydrogel showed rapid and strong self-healing. The self-healing time decreased from 20 s to 3 s when TA content increased. The conductivity of hydrogels was observed in the range of 0.022-0.027 S/m. The human skin adhesion test revealed that the hydrogel containing 2.5 wt% TA could adhere to the skin and left no residue when the sample was removed. It can be suggested that the 2.5 wt% TA was a suitable content for hydrogel preparation. The hydrogel containing 2.5 wt% TA integrated smart functions such as self-healing and self-adhere which performed reproducibility and the stability of the signals during monitoring of human limbs movement. According to the results, the hydrogel containing borax and 2.5 wt% TA could be applied as a strain sensor for monitoring human health.


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C. Choi, J.M. Lee, S.H. Kim, S.J. Kim, J. Di and R.H. Baughman, Twistable and stretchable sandwich structured fiber for wearable sensors and supercapacitors, Nano Letters, 2016, 16, 7677-7684.

T.Q. Trung, S. Ramasundaram, B. Hwang and N. Lee, An all-elastomeric transparent and stretchable temperature sensor for body-attachable wearable electronics, Advanced Materials, 2016, 28(3), 502-509.

A. Atrei, M. Fiorani, A. Bellingeri, G. Protano and I. Corsi, Remediation of acid mine drainage-affected stream waters by means of eco-friendly magnetic hydrogels crosslinked with functionalized magnetite nanoparticles, Environmental Nanotechnology, Monitoring and Management, 2019, 12,100263.

J.R. Biesiekierski, What is gluten?, Journal of Gastroenterology and Hepatology, 2017, 32(S1), 78-81.

X. Han, W. Lu, W. Yu, H. Xu, S. Bi and H. Cai, Conductive and adhesive gluten ionic skin for eco-friendly strain sensor, Journal of Materials Science, 2021, 56, 3970-3980.

A. Ounkaew, P. Kasemsiri, N. Srichiangsa, K. Jetsrisuparb, J.T.N. Knijnenburg, M. Okhawilai, S. Hiziroglu and S.Theerakulpisut, Multifunctional gluten/guar gum copolymer with self-adhesion, self-healing, and remolding properties as smart strain sensor and self-powered device, Express Polymer Letters, 2022, 16(6), 607-623.

W. Ge, S. Cao, F. Shen, Y. Wang, J. Ren and X. Wang, Rapid self-healing, stretchable, moldable, antioxidant and antibacterial tannic acid-cellulose nanofibril composite hydrogels, Carbohydrate Polymers, 2019, 224, 115147.

L. Zhao, Z. Ren, X. Liu, Q. Ling, Z. Li and H. Gu, A Multifunctional, Self-Healing, Self-Adhesive, and Conductive Sodium Alginate/Poly(vinyl alcohol) Composite Hydrogel as a Flexible Strain Sensor, ACS Applied Materials and Interfaces, 2021, 13, 11344-11355.

X. Pan, Q. Wang, D. Ning, L. Dai, K. Liu, Y. Ni, L. Chen and L. Huang, Ultraflexible self-healing guar gum-glycerol hydrogel with Injectable, Antifreeze, and Strain-Sensitive Properties, ACS Biomaterials Science and Engineering, 2018, 4, 3397-3404.

I. Taesuwan, A. Ounkaew, M. Okhawilai, S. Hiziroglu, W. Jarernboon, P. Chindaprasirt and P. Kasemsiri, Smart conductive nanocomposite hydrogel containing green synthesized nanosilver for use in an eco-friendly strain sensor, Cellulose, 2022, 29, 273-286.






บทความวิจัย (Research article)