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Synthesis of highly stable and dispersed silver nanoparticles/poly(vinyl alcohol-co-ethylene glycol)/poly(3-aminophenyl boronic acid) nanocomposite: Characterization and antibacterial, hemolytic and cytotoxity studies
Journal of Industrial and Engineering Chemistry ( IF 6.1 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.jiec.2020.05.025
Titilope John Jayeoye , Ozioma Forstinus Nwabor , Thitima Rujiralai

Abstract A highly stable and dispersed aqueous nanocomposite of silver nanoparticles/poly(vinyl alcohol-co-ethylene glycol)/poly(3-aminophenyl boronic acid) (Ag/(PVA-PEG)/PABA) was synthesized. PVA and PEG was blended at the optimum volume ratio of 16:4 to obtain poly(vinyl alcohol-co-ethylene glycol) (PVA-PEG) blend. 3-Aminophenyl boronic acid served as the reductant of silver nitrate and was in situ oxidatively polymerized to obtain poly(3-aminophenyl boronic acid) (PABA). Subsequently, (PVA-PEG) blend served as matrix for PABA polymerization. The polymer blend helped to improve PABA solubility by providing platform for PABA anchoring, through covalent bonding with the free hydroxyl groups of the blend. Additionally, PABA is a highly conducting polymer, hence the synthesized nanocomposite demonstrated improved conductivity. The maximum absorption peak of Ag/(PVA-PEG)/PABA was at 422 nm, with particle sizes between 10 and 15 nm and zeta potential value of 25.8 mV. FESEM showed spherical AgNPs sprinkled on the surface of the nanocomposite while 40% Ag was presented in EDX result. The Ag/(PVA-PEG)/PABA exhibited good antibacterial potency against Bacillus cereus and Escherichia coli where the ruptured bacterial cell was observed on FESEM. Importantly, it showed reliable biocompatibility without imparting deleterious red blood cell hemolysis and non-cytotoxic to normal human cell line. Overall, these results emphasized the exciting biomedical potentials of Ag/(PVA-PEG)/PABA nanocomposite.

中文翻译:

高度稳定和分散的银纳米粒子/聚(乙烯醇-共聚乙二醇)/聚(3-氨基苯基硼酸)纳米复合材料的合成:表征和抗菌、溶血和细胞毒性研究

摘要 合成了一种高度稳定且分散的纳米银纳米复合材料/聚(乙烯醇-共聚乙二醇)/聚(3-氨基苯基硼酸)(Ag/(PVA-PEG)/PABA)。PVA 和 PEG 以 16:4 的最佳体积比混合,得到聚(乙烯醇-共聚乙二醇)(PVA-PEG)共混物。3-氨基苯基硼酸作为硝酸银的还原剂,原位氧化聚合得到聚(3-氨基苯基硼酸)(PABA)。随后,(PVA-PEG)共混物作为 PABA 聚合的基质。聚合物混合物通过与混合物的游离羟基共价键合,为 PABA 锚定提供平台,有助于提高 PABA 的溶解性。此外,PABA 是一种高导电聚合物,因此合成的纳米复合材料表现出改善的导电性。Ag/(PVA-PEG)/PABA 的最大吸收峰在 422 nm,粒径在 10 到 15 nm 之间,zeta 电位值为 25.8 mV。FESEM 显示球形 AgNPs 散布在纳米复合材料的表面,而 40% 的 Ag 在 EDX 结果中存在。Ag/(PVA-PEG)/PABA 对蜡样芽孢杆菌和大肠杆菌表现出良好的抗菌效力,在 FESEM 上观察到破裂的细菌细胞。重要的是,它表现出可靠的生物相容性,不会对正常人细胞系造成有害的红细胞溶血和无细胞毒性。总的来说,这些结果强调了 Ag/(PVA-PEG)/PABA 纳米复合材料令人兴奋的生物医学潜力。FESEM 显示球形 AgNPs 散布在纳米复合材料的表面,而 40% 的 Ag 在 EDX 结果中存在。Ag/(PVA-PEG)/PABA 对蜡样芽孢杆菌和大肠杆菌表现出良好的抗菌效力,在 FESEM 上观察到破裂的细菌细胞。重要的是,它表现出可靠的生物相容性,不会对正常人细胞系造成有害的红细胞溶血和无细胞毒性。总的来说,这些结果强调了 Ag/(PVA-PEG)/PABA 纳米复合材料令人兴奋的生物医学潜力。FESEM 显示球形 AgNPs 散布在纳米复合材料的表面,而 40% 的 Ag 在 EDX 结果中存在。Ag/(PVA-PEG)/PABA 对蜡样芽孢杆菌和大肠杆菌表现出良好的抗菌效力,在 FESEM 上观察到破裂的细菌细胞。重要的是,它表现出可靠的生物相容性,不会对正常人细胞系造成有害的红细胞溶血和无细胞毒性。总的来说,这些结果强调了 Ag/(PVA-PEG)/PABA 纳米复合材料令人兴奋的生物医学潜力。它显示出可靠的生物相容性,不会对正常人细胞系造成有害的红细胞溶血和无细胞毒性。总的来说,这些结果强调了 Ag/(PVA-PEG)/PABA 纳米复合材料令人兴奋的生物医学潜力。它显示出可靠的生物相容性,不会对正常人细胞系造成有害的红细胞溶血和无细胞毒性。总的来说,这些结果强调了 Ag/(PVA-PEG)/PABA 纳米复合材料令人兴奋的生物医学潜力。
更新日期:2020-09-01
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