Facile Fabrication of Povidone Iodine‐Embedded Polytetrafluoroethylene Superhydrophobic Films with Improved Antiadhesive and Bactericidal Properties in Bacterial Environments. Issue 9 (10th June 2021)

• Record Type: Journal Article
• Authors: Niu, Xueming; Wan, Shuqian; Rong, Xiaona; Lin, Mian; Mehwish, Nabila; Wei, Kun; Lee, Bae Hoon
• Is Part Of: Macromolecular materials and engineering. Volume 306:Issue 9(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-06-10
• Subjects: antibacterial films -- controlled release -- iodine‐embedded films -- superhydrophobic films; Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1002/mame.202100193
• Languages: English
• ISSNs: 1438-7492

Abstract

Abstract: It remains a challenge to maintain the antiadhesion properties of superhydrophobic films after exposure to bacterial environments. In this work, superhydrophobic bactericidal polymer films via the simple incorporation of polyvinylpyrrolidone‐iodine (PVP‐I) or iodine into polytetrafluoroethylene (PTFE) are fabricated to improve their antiadhesive and antibacterial capability. Superhydrophobic iodine‐embedded films, polytetrafluoroethylene/polyvinylpyrrolidone‐iodine and polytetrafluoroethylene‐iodine (PTFE/PVP‐I and PTFE‐I), show excellent antiadhesive and bactericidal performances even post exposure to bacterial solutions as compared to iodine‐free counterparts by controlling the release of iodine. Especially, superhydrophobic PTFE/PVP‐I films display a more sustained iodine release profile and significant antibacterial properties against gram‐positive ( S. aureus, methicillin‐resistant S. aureus (MRSA)) and gram‐negative ( E. coli ) bacteria. Such a facile combination of antiseptic agents and superhydrophobic surface could be widely used for antiseptic biomedical applications. Abstract : The superhydrophobic surface (polytetrafluoroethylene, PTFE) loses its antiadhesion properties under bacterial environments. In this work, superhydrophobic polyvinylpyrrolidone‐iodine (PVP‐I) embedded films (PTFE/PVP‐I) are fabricated via the simple mixing of PTFE and PVP‐I. The films display excellent antiadhesive and bactericidal properties upon the dynamic exposure to bacterial environments.