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Updated: Jul 24, 2026
Environmentally-controlled Microtensile Testing of Mechanically-adaptive Polymer Nanocomposites for ex vivo Characterization
Published on: August 20, 2013
Mussel-Inspired Adhesive and Tough Composite Hydrogel Based on Polydopamine-Modified Nanocellulose for Strain and
Hong Du1,2, Kangyao Zhao2, Zhengbai Cheng3
1Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
Abstract:
Adhesive composite hydrogels have received increasing attention in the fields of wearable sensors, electronic skin, and bioelectronic interfaces. However, combining good adhesiveness and high strength in a single composite hydrogel remains challenging. To address this issue, a polydopamine (PDA)-modified nanocellulose (PCNF)/polyacrylamide (PAM) composite hydrogel was developed, which exhibits good adhesiveness (40 kPa), good durability (1500 rpm), excellent frost resistance (-42 °C), and good sensitivity (GF = 1.6). The composite hydrogel exhibits self-healing and conductive properties, making it suitable for sensing and Morse code applications. The obtained composite hydrogels have potential applications in various wearable devices, wireless human computer interfaces, human activity monitoring, and remote encrypted transmissions.
