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首页> 外文期刊>Journal of industrial and engineering chemistry >Development of silk fibers decorated with the in situ synthesized silver and gold nanoparticles: antimicrobial activity and creatinine adsorption capacity
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Development of silk fibers decorated with the in situ synthesized silver and gold nanoparticles: antimicrobial activity and creatinine adsorption capacity

机译：用原位合成银和金纳米颗粒装饰的丝纤维：抗菌活性和肌酐吸附能力

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摘要

In this study, to impart silk fibers with excellent coloration, UV-protection, antimicrobial activity, as well as creatinine adsorption from artificial blood, silk fibers were designed via facile fabrication approach. These diverse properties were introduced by in-situ incorporation of nanoparticles based on either silver (AgNPs) or gold (AuNPs) as well as bimetallic (Ag-AuNPs) onto silk fibers using an eco-friendly, effective one-pot process. The proteins present in the silk fibers acted as a redox-active bio-template to reduce the Ag(I) and Au(III) ions to their zero-valent state with simultaneous deposition of the generated nanoparticles onto the silk fiber surfaces. The obtained results clearly indicated that both AgNPs and AuNPs colored the silk fibers with brown and red color, respectively, thereby affirming the deposition of these metallic NPs onto and inside the surface of silk fibers as S/Ag-AuNPs. Significantly, the prepared colored silk fibers exhibited excellent antimicrobial and cytotoxicity activities against different pathogenic microbes as well as very good UV protection properties. Moreover, the results attested that the as prepared S/AgNPs and S/AuNPs fibers have good adsorption potential with maximal adsorption capacity of creatinine in artificial blood was found to be 94.2 mg/g for S/AuNPs sample, which is 1.55 times greater than that of silk fibers.
机译：在本研究中，为了赋予丝纤维优异的着色性、紫外线防护性、抗菌活性以及从人工血液中吸附肌酐，丝纤维通过简易的制造方法设计。通过采用环保、有效的一锅法将基于银（AgNPs）或金（AuNPs）以及双金属（Ag-AuNPs）的纳米颗粒原位掺入丝纤维，引入了这些不同的性质。存在于丝纤维中的蛋白质充当氧化还原活性生物模板，将Ag（I）和Au（III）离子还原至其零价状态，同时将生成的纳米颗粒沉积到丝纤维表面。所得结果清楚地表明，AgNPs和AuNPs分别将丝纤维染成棕色和红色，从而证实了这些金属NP作为S/Ag AuNPs沉积在丝纤维表面和内部。值得注意的是，制备的彩色丝绸纤维对不同的病原微生物表现出优异的抗菌和细胞毒性活性，以及非常好的紫外线防护性能。此外，结果证明，制备的S/AgNPs和S/AuNPs纤维具有良好的吸附潜力，S/AuNPs样品对人工血中肌酐的最大吸附量为94.2 mg/g，是丝纤维的1.55倍。

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