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Self‐Cleaning and Antibacterial Zeolitic Imidazolate Framework Coatings
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2018-04-26 , DOI: 10.1002/admi.201800167 Weizhen Miao 1 , Jing Wang 1 , Jindun Liu 1 , Yatao Zhang 1
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2018-04-26 , DOI: 10.1002/admi.201800167 Weizhen Miao 1 , Jing Wang 1 , Jindun Liu 1 , Yatao Zhang 1
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Superhydrophobic surface with self‐cleaning function like lotus leaf can inhibit bacterial adhesion to some extent; however, it cannot completely avoid bacterial contamination because it could not kill them. In this work, a facile modified sol–gel method to prepare self‐cleaning and antibacterial coating is proposed. Zeolitic imidazolate framework‐8 (ZIF‐8) nanoparticles with good hydrophobic and antibacterial properties are mixed with polyvinylidene fluoride (PVDF) colloidal particle suspension, then, the PVDF/ZIF‐8 nanocomposite is modified with 1H, 1H, 2H, 2H‐perfluorooctyltriethoxysilane (POTS) to prepare PVDF/ZIF‐8/POTS (PZP) coating solution. The resultant PZP nanocomposite coatings have a high contact angle (>160°) and a low sliding angle (<7°). Meanwhile, it is found that the dirt particles accumulated on the surface can be easily washed off by rolling water droplets, demonstrating its superb self‐cleaning function. Notably, the PZP nanocomposite coating shows excellent antibacterial activity against Gram‐negative Escherichia coli. These ZIF‐8‐based nanocomposite coatings with superb self‐cleaning function and high antibacterial activity denote their great potential in a wider range of practical applications.
中文翻译：
自洁和抗菌的沸石咪唑盐骨架涂料
具有自清洁功能的超疏水表面（如荷叶）可在一定程度上抑制细菌粘附；但是，它不能完全避免细菌污染，因为它无法杀死它们。在这项工作中，提出了一种用于制备自清洁和抗菌涂层的简便的改良溶胶-凝胶法。将具有良好疏水和抗菌特性的沸石咪唑盐骨架8（ZIF-8）纳米颗粒与聚偏二氟乙烯（PVDF）胶体颗粒悬浮液混合，然后用1H，1H，2H，2H-全氟辛基三乙氧基硅烷对PVDF / ZIF-8纳米复合材料进行改性（POTS）以制备PVDF / ZIF-8 / POTS（PZP）涂料溶液。所得的PZP纳米复合涂层具有高接触角（> 160°）和低滑动角（<7°）。同时，结果发现，积聚在表面的污垢颗粒可以通过滚动的水滴轻松洗掉，这表明它具有出色的自清洁功能。值得注意的是，PZP纳米复合涂料对革兰氏阴性菌显示出优异的抗菌活性。大肠杆菌。这些具有出色的自清洁功能和高抗菌活性的ZIF-8基纳米复合涂料表明它们在更广泛的实际应用中具有巨大的潜力。
更新日期：2018-04-26
中文翻译：
自洁和抗菌的沸石咪唑盐骨架涂料
具有自清洁功能的超疏水表面（如荷叶）可在一定程度上抑制细菌粘附；但是，它不能完全避免细菌污染，因为它无法杀死它们。在这项工作中，提出了一种用于制备自清洁和抗菌涂层的简便的改良溶胶-凝胶法。将具有良好疏水和抗菌特性的沸石咪唑盐骨架8（ZIF-8）纳米颗粒与聚偏二氟乙烯（PVDF）胶体颗粒悬浮液混合，然后用1H，1H，2H，2H-全氟辛基三乙氧基硅烷对PVDF / ZIF-8纳米复合材料进行改性（POTS）以制备PVDF / ZIF-8 / POTS（PZP）涂料溶液。所得的PZP纳米复合涂层具有高接触角（> 160°）和低滑动角（<7°）。同时，结果发现，积聚在表面的污垢颗粒可以通过滚动的水滴轻松洗掉，这表明它具有出色的自清洁功能。值得注意的是，PZP纳米复合涂料对革兰氏阴性菌显示出优异的抗菌活性。大肠杆菌。这些具有出色的自清洁功能和高抗菌活性的ZIF-8基纳米复合涂料表明它们在更广泛的实际应用中具有巨大的潜力。
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