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首页> 外文期刊>ACS applied materials & interfaces >Mechanically Robust, Self-Healing, Polymer Blends and Polymer/Small Molecule Blend Materials with High Antibacterial Activity
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Mechanically Robust, Self-Healing, Polymer Blends and Polymer/Small Molecule Blend Materials with High Antibacterial Activity

机译：机械稳健，自愈，聚合物共混物和聚合物/小分子混合材料，具有高抗菌活性

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摘要

There is a growing demand for antibacterial materials around the world in recent years because they can be used for preventing pathogen infection, which is one of the major threats to human health. However, the mechanical damage of the antibacterial materials may weaken their protective effect since bacteria can invade through the cracks of the material. Therefore, antibacterial materials with self-healing ability, in which the mechanical damage can be spontaneously healed, exhibit better reliability and a longer lifespan. In this article, we prepared a series of low-cost antibacterial polymer blends and polymer/small molecule blend materials with excellent self-healing ability and high mechanical strength by a one-pot reaction under mild conditions. These materials were facilely obtained by blending a tiny amount of commercialized cationic antibacterial chemicals, poly(ethylene imine) (PEI) or cetyltrimethylammonium bromide (CTAB), into a self-healing, mechanically robust polymer, poly(ether-thioureas) (PETU). It can be found that they can effectively kill Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive) on their surface. Meanwhile, the distinguished advantages of PETU, including self-healing property, excellent mechanical robustness, recyclability, and transparency, were perfectively maintained. Furthermore, it was shown that their cytotoxicity was satisfactory and their hemolytic activity was insignificant. The above advantages of the blend materials suggested their potential applications in health care, food industry, and environmental hygiene.
机译：近年来，世界各地的抗菌材料需求不断增长，因为它们可用于预防病原体感染，这是对人类健康的主要威胁之一。然而，由于细菌可以通过材料的裂缝侵入，因此抗菌材料的机械损伤可能会削弱它们的保护效果。因此，具有自我愈合能力的抗菌材料，其中机械损坏可以自发地愈合，表现出更好的可靠性和更长的寿命。在本文中，我们制备了一系列低成本的抗菌聚合物共混物和聚合物/小分子混合物材料，其在温和条件下通过单罐反应具有优异的自愈能力和高机械强度。通过将微量商业化的阳离子抗菌化学品，聚（乙烯亚胺）（PEI）（PEI）或甲烷基三甲基溴化铵（CTAB）混合到自愈合，机械稳健的聚合物，聚（醚硫脲）（Petu）中，通过将这些材料进行易于获得。 。可以发现它们可以有效地在其表面上杀死大肠杆菌（革兰氏阴性）和金黄色葡萄球菌（革兰氏阳性）。同时，PETU的杰出优势，包括自我愈合性，优异的机械稳健性，可再循环性和透明度，是完美的。此外，显示其细胞毒性令人满意，它们的溶血活性是微不足道的。融合材料的上述优点表明它们在医疗保健，食品工业和环境卫生方面的潜在应用。

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