In Situ Synthesis of Silver Nanoparticles on the Polyelectrolyte-Coated Sericin/PVA Film for Enhanced Antibacterial Application.
In Situ Synthesis of Silver Nanoparticles on the Polyelectrolyte-Coated Sericin/PVA Film for Enhanced Antibacterial Application.
复制标题
聚电解质涂覆丝胶/PVA 薄膜上原位合成银纳米颗粒以增强抗菌应用
DOI：
10.3390/ma10080967
复制
发表时间：
2017-08-18
期刊：
影响因子：
--
通讯作者：
Wang Y
中科院分区：
文献类型：
--
作者：
Cai R;Tao G;He H;Guo P;Yang M;Ding C;Zuo H;Wang L;Zhao P;Wang Y
为了开发丝胶（SS）作为一种潜在的抗菌生物材料，采用层层组装技术和紫外线辅助AgNPs合成方法，开发了一种新型聚电解质多层（PEMs）涂层丝胶/聚乙烯醇（SS/PVA）薄膜，并用纳米银（AgNPs）修饰。通过银离子与质子交换膜之间的静电引力，银离子被质子交换膜富集，然后在紫外线照射的辅助下原位还原为银纳米颗粒。 PEM促进了AgNPs的高密度生长，并由于3D基质的形成而保护了合成的AgNPs，从而赋予SS/PVA薄膜高效且持久的抗菌活性。采用扫描电子显微镜、能量色散光谱、X射线衍射、傅里叶转移红外光谱、水接触角、力学性能和热重分析分别对SS/PVA、PEMs-SS/PVA和AgNPs-PEMs-SS/PVA薄膜进行了表征。 AgNPs-PEMs-SS/PVA薄膜具有良好的机械性能、亲水性、吸水性，对大肠杆菌、金黄色葡萄球菌、铜绿假单胞菌具有优异持久的抗菌活性，并且具有良好的稳定性和可降解性。本研究开发了一种简单的方法来设计和制备 AgNPs-PEMs-SS/PVA 薄膜，用于潜在的抗菌应用。
To develop silk sericin (SS) as a potential antibacterial biomaterial, a novel composite of polyelectrolyte multilayers (PEMs) coated sericin/poly(vinyl alcohol) (SS/PVA) film modified with silver nanoparticles (AgNPs) has been developed using a layer-by-layer assembly technique and ultraviolet-assisted AgNPs synthesis method. Ag ions were enriched by PEMs via the electrostatic attraction between Ag ions and PEMs, and then reduced to AgNPs in situ with the assistance of ultraviolet irradiation. PEMs facilitated the high-density growth of AgNPs and protected the synthesized AgNPs due to the formation of a 3D matrix, and thus endowed SS/PVA film with highly effective and durable antibacterial activity. Scanning electron microscopy, energy dispersive spectroscopy, X-ray diffractometry, Fourier transfer infrared spectroscopy, water contact angle, mechanical property and thermogravimetric analysis were applied to characterize SS/PVA, PEMs-SS/PVA and AgNPs-PEMs-SS/PVA films, respectively. AgNPs-PEMs-SS/PVA film has exhibited good mechanical performance, hydrophilicity, water absorption capability as well as excellent and durable antibacterial activity against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa and good stability and degradability. This study has developed a simple method to design and prepare AgNPs-PEMs-SS/PVA film for potential antibacterial application.
登录
查看更多内容
影响因子：
3.9
作者：
Hu, Rong;Li, Guozhu;Zhang, Xiangwen
通讯作者：
Zhang, Xiangwen
DOI：
10.1016/j.ijbiomac.2007.05.005
发表时间：
2007-08-01
影响因子：
8.2
作者：
Ki, Chang Seok;Kim, Jong Wook;Park, Young Hwan
通讯作者：
Park, Young Hwan
影响因子：
5.6
作者：
Dorjnamjin D;Ariunaa M;Shim YK
通讯作者：
Shim YK
影响因子：
10.2
作者：
Lara HH;Garza-Treviño EN;Ixtepan-Turrent L;Singh DK
通讯作者：
Singh DK
影响因子：
3.5
作者：
Karumuri, Anil K.;Oswal, Dhawal P.;Mukhopadhyay, Sharmila M.
通讯作者：
Mukhopadhyay, Sharmila M.