Amyloid Proteins Adhesive for Slippery Liquid-Infused Porous Surfaces

Biomimetic slippery liquid-infused porous surfaces (SLIPS) have emerged as a promising solution to solve the limitations of superhydrophobic surfaces, such as inadequate durability in corrosion protection and a propensity for frosting. However, the challenge of ensuring strong, lasting adhesion on diverse materials to enhance the durability of the lubricant layer remains. The research addresses this by leveraging amyloid phase-transitioned lysozyme (PTL) as an adhesive interlayer, conferring stable attachment of SLIPS across a variety of substrates, including metals, inorganics, and polymers. The silica-textured interface robustly secures the lubricant with a notably low sliding angle of 1.15 degrees. PTL-mediated adhesion fortifies the silicone oil attachment to the substrate, ensuring the retention of its repellent efficacy amidst mechanical stressors like ultrasonication, water scrubbing, and centrifugation. The integration of robust adhesion, cross-substrate compatibility, and durability under stress affords the PTL-modified SLIPS exceptional anti-fouling, anti-icing, and anti-corrosion properties, marking it as a leading solution for advanced protective applications. The utilization of amyloid phase-transitioned lysozyme (PTL) as an adhesive interlayer enhances the biosafety, transparency, and stability of SLIPS on diverse substrates. The incorporation of strong adhesion, compatibility across substrates, and resilience to stress endows PTL-modified SLIPS with outstanding anti-fouling, anti-icing, and anti-corrosion properties, positioning it as a top-tier solution for advanced protective applications. image