Volume 226, Issue 8 2400471
Research Article

Fabrication and Characterization of Multi-Stimuli-Responsive Hydrogels with Robust Mechanical Properties, Good Self-Healing, and Substrate Adhesiveness Using a Traditional Chemical Crosslinker and Initiator-Free Approach

Mulenga Kalulu

Mulenga Kalulu

School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu, 211189 P. R. China

Department of Chemistry, The University of Zambia, Lusaka, 10101 Zambia

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Olayinka Oderinde

Olayinka Oderinde

Department of Chemistry, Faculty of Natural and Applied Sciences, Lead City University, Ibadan, 200255 Nigeria

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Christopher Mwanza

Christopher Mwanza

School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu, 211189 P. R. China

Department of Chemistry, The University of Zambia, Lusaka, 10101 Zambia

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Shephrah O. Ogungbesan

Shephrah O. Ogungbesan

School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu, 211189 P. R. China

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Muzammal Hussain

Muzammal Hussain

School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu, 211189 P. R. China

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Guodong Fu

Corresponding Author

Guodong Fu

School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu, 211189 P. R. China

E-mail: [email protected]

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First published: 22 February 2025
Citations: 1

Abstract

Hydrogels are essential in various applications, including biomedical fields, robotics, sensors, and wearable technologies. Traditional fabrication methods often involve chemical crosslinkers and initiators, which can introduce toxicity and limit practical use. This study presents an innovative approach to creating multifunctional, multi-stimuli-responsive hydrogels without using these traditional components. By polymerizing AMPS, DMAA, and MAA monomers using environmentally friendly AlCl3·6H2O as a crosslinker via UV polymerization, the study produces hydrogels exhibiting good mechanical properties such as tensile strength (3.02 ± 0.12 MPa), toughness (20.01 ± 1.8 J m−3), superior stretchability (2182.4 ± 114% elongation), and good compression resistance in addition to possessing self-healing capabilities, ionic conductivity, and responsiveness to temperature, pH, and ionic strength. This innovative technique represents a significant advancement toward developing sustainable hydrogels suitable for diverse biomedical, robotic, and sensor, technology applications.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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