Abstract
Control promotion and prevention of platelet adhesion are important for various biomedical applications. In the past, surface topography and chemical modifications have been commonly utilized for tailoring the promotion and prevention of platelet adhesion. Recently, lotus-leaf-inspired superhydrophobicity has appeared as an efficient avenue to prevent platelet adhesion. However, such extreme water repellent interfaces fail to perform upon prolonged and continuous exposure to aqueous phase. In this communication, the strategic use of a catalyst-free 1,4-conjugate addition reaction between amine and acrylate allowed us to investigate the impact of two distinct underwater oil-wettability on platelet adhesion activity. While underwater superoleophobicity inhibited platelet-adhesion, a highly aggregated fibrous network of adhered platelets was observed on underwater superoleophilic coating. Further, this biocompatible and haemocompatible underwater superoleophobic multilayer coating was deposited on a commercially available catheter tube to examine its potential towards the prevention of platelet attachment.
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