Affiliation:
1. College of Chemical and Biological Engineering Zhejiang University Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology Hangzhou 310027 China
2. Wuhan Second Ship Design and Research Institute Wuhan 430205 China
3. Zhejiang Provincial Innovation Center of Advanced Chemicals Technology Quzhou Research Institute Zhejiang University Quzhou 324000 China
Abstract
AbstractThe formation process of biofouling is actually a 4D process with both spatial and temporal dimensions. However, most traditional antifouling coatings, including slippery liquid‐infused porous surface (SLIPS), are limited to performing antifouling process in the 2D coating plane. Herein, inspired by the defensive behavior of sea anemones’ wielding toxic tentacles, a “4D SLIPS” (FSLIPS) is constructed with biomimetic cilia via a magnetic field self‐assembly method for antifouling. The bionic cilia move in 3D space driven by an external magnetic field, thereby preventing the attachment of microorganisms. The FSLIPS releases the gaseous antifoulant (nitric oxide) at 1D time in response to light, thereby achieving a controllable biocide effect on microorganisms. The FSLIPS regulates the movement of cilia via the external magnetic field, and controls the release of NO overtime via the light response, so as to adjust the antifouling modes on demand during the day or night. The light/magnetic response mechanism endow the FSLIPS with the ability to adjust the antifouling effect in the 4D dimension of 1D time and 3D space, effectively realizing the intelligence, multi‐dimensionality and precision of the antifouling process.
Funder
National Natural Science Foundation of China