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首页> 外文期刊>Materials science & engineering >Antibacterial properties of modified biodegradable PHB non-woven fabric
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Antibacterial properties of modified biodegradable PHB non-woven fabric

机译：改性生物降解PHB无纺布的抗菌性能

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摘要

The antibacterial properties or poly(hydroxybutyrate) (PHB) non-woven fabric were explored in this study. The PHB was activated by plasma modification and subsequently processed with either immersion into a solution of nanoparticles or direct metallization. The wettability and surface chemistry of the PHB surface was determined. The thickness of the sputtered nanolayer on PHB fabric was characterized. It was found that plasma modification led to a formation of strongly hydrophilic surface, while the subsequent metallization by silver or gold resulted in a significantly increased water contact angle. Further, it was found that antibacterial activity may be controlled by the type of a metal and deposition method used. The immersion of plasma modified fabric into Ag nanopartide solution led to enhanced antibacterial efficiency of PHB against Escherichia coli (E. coli). Direct silver sputtering on PHB fabric was proved to be a simple method for construction of a surface with strong antibacterial potency against both Escherichia coli (E. coli) and Staphytococcus epidermidis (S. epidermidis). We demonstrated the antibacterial activity of PHB fabric modified by plasma activation and consecutive selection of a treatment method for an effective antibacterial surface construction.
机译：在这项研究中探索了抗菌性能或聚羟基丁酸酯（PHB）无纺布。通过等离子体改性活化PHB，然后通过浸入纳米颗粒溶液或直接金属化对其进行处理。测定PHB表面的润湿性和表面化学性质。表征了PHB织物上溅射的纳米层的厚度。发现等离子体改性导致形成强亲水性表面，而随后通过银或金的金属化导致水接触角显着增加。此外，发现抗菌活性可以通过金属的类型和所使用的沉积方法来控制。将等离子体改性的织物浸入Ag纳米粒子溶液中可提高PHB对大肠杆菌（E. coli）的抗菌效率。事实证明，在PHB织物上直接进行银溅射是一种简单的方法，可用于构建对大肠杆菌（E. coli）和表皮葡萄球菌（S. epidermidis）具有强抗菌力的表面。我们展示了通过等离子体活化改性的PHB织物的抗菌活性，并为有效的抗菌表面构造连续选择了一种治疗方法。

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