화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.92, 1-17, December, 2020
Super-hydrophobicity: Mechanism, fabrication and its application in medical implants to prevent biomaterial associated infections
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In this report, the insights for mimicking the natural phenomenon found in lotus leaves i.e. super- hydrophobic surface are compiled. Recently, there are reports that critically evaluated the application of this nature inspired property to many artificial substrates like metals, plastics, fabrics, paper, etc. From the summarized reports, it is evident that the two important prerequisites for fabricating super- hydrophobic surfaces are necessary nano/micron scale topographical roughness and subsequent modification by the low surface energy compounds. Detailed description about the water repellent nature, rolling-off properties of the water droplet with the nano/micro engineered surfaces in terms of Wenzel and Cassie-Baxter models are explored. Extending this application in the biotechnological field as implants is an innovative thought since employing the non-wettable character in the implants surface can eliminate many drawbacks. More thoughts and insights have been focused on developing super-hydrophobicity over bio-materials to reduce bacterial biofilm formation to overcome the drawback of biomaterial associated infections. The possible mechanisms behind the biofilm formation and how the super-hydrophobic surface can effectively mitigate the bacterial adhesion are also covered in detail.
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