A Near‐Infrared Photothermal‐Responsive Underwater Adhesive with Tough Adhesion and Antibacterial Properties

Author:

Yan Yonggan1,Wei Luxing2,Shao Jinlong1,Qiu Xiaoyong3,Zhang Xiaolai3,Cui Xin4,Huang Jun2ORCID,Ge Shaohua1

Affiliation:

1. Department of Periodontology & Tissue Engineering and Regeneration School and Hospital of Stomatology Cheeloo College of Medicine Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases Shandong University Jinan Shandong 250012 China

2. Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education School of Mechanical Engineering Shandong University Jinan Shandong 250061 China

3. Key Laboratory of Colloid and Interface Chemistry of Ministry of Education School of Chemistry and Chemical Engineering Shandong University Jinan Shandong 250100 China

4. Advanced Interdisciplinary Technology Research Center National Innovation Institute of Defense Technology Beijing 100071 China

Abstract

AbstractDeveloping tunable underwater adhesives that possess tough adhesion in service and easy detachment when required remains challenging. Herein, a strategy is proposed to design a near infrared (NIR) photothermal‐responsive underwater adhesive by incorporating MXene (Ti3C2Tx)‐based nanoparticles within isocyanate‐modified polydimethylsiloxane (PDMS) polymer chains. The developed adhesive exhibits long‐term and tough adhesion with an underwater adhesion strength reaching 5.478 MPa. Such strong adhesion is mainly attributed to the covalent bonds and hydrogen bonds at the adhesive‐substrate interface. By making use of the photothermal‐response of MXene‐based nanoparticles and the thermal response of PDMS‐based chains, the adhesive possesses photothermal‐responsive performance, exhibiting sharply diminished adhesion under NIR irradiation. Such NIR‐triggered tunable adhesion allows for easy and active detachment of the adhesive when needed. Moreover, the underwater adhesive exhibits photothermal antibacterial property, making it highly desirable for underwater applications. This work enhances the understanding of photothermal‐responsive underwater adhesion, enabling the design of tunable underwater adhesives for biomedical and engineering applications.

Funder

National Natural Science Foundation of China

Key Technology Research and Development Program of Shandong Province

Natural Science Foundation of Shandong Province

Publisher

Wiley

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