Recent Advances of Microcapsule-based Intelligent Coatings: From Bioinspired Designs, Material Selections, to Potential Applications.
Journal:
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
Published Date:
Jul 28, 2025
Abstract
Coating technology is widely used in diverse fields such as energy, healthcare, and aerospace because of the advantages of simple fabrication, low cost, stability, and customized functions. However, conventional coatings fall short in meeting the emerging demands due to their single functionality and non-responsiveness. Inspired by natural prototypes, microcapsule-based intelligent coatings (MICs) that exhibit remarkable responsiveness to external stimuli have been developed and used in various fields such as corrosion protection and anti-fouling. Comprehensively understanding the responsive mechanisms and optimization strategies of MICs can maximize their adaptability and flexibility, which are highly desired for their precise preparation and actual applications. Therefore, this review focuses on recent progress of MICs, varying from bioinspired designs, material selections, stimulus responses, and diverse applications, providing more inspiration to design advanced MICs. First, biological prototypes used in the fabrication of MICs are briefly introduced. Then, the material selections and stimulus responses of MICs, as well as their advantages and disadvantages are emphasized. Later, applications are focused according to their functions, including anti-corrosion, anti-fouling, self-lubricating, and temperature regulation. Finally, the scientific challenges and prospects in designing MICs, focusing on the requirements of developing new structures using machine learning and achieving new applications, are highlighted.
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