Abstract
Antifogging and antibacterial properties are both essential in biomedical examination and diagnostics to ensure clear visibility and prevent potential bacterial infections. However, it is extremely challenging to integrate both functions on one surface. Herein, this study presents a rapidly assembled polyelectrolyte complex (PEC) coating, which can be applied to different transparent substrates through a facile combination of anionic polystyrene sulfonic acid (PSS) and cationic surfactant cetyltrimethylammonium bromide (CTAB). Unlike traditional superhydrophilic anti-fogging mechanisms, this coating leverages the hygroscopic properties of polyelectrolyte complex groups, ensuring effective anti-fogging performances across a wide temperature range. Additionally, the incorporation of quaternary ammonium compounds (QACs) within the PEC complex confers strong bactericidal properties to the coating. The resultant coating exhibits excellent surface adhesion and robust resistance to water immersion, and low cytotoxicity. With its dual antifogging and antibacterial properties, this coating shows significant promise for diverse applications in medical diagnostic and detection lens equipment.
Published Version
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