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首页> 外文期刊>Journal of Applied Polymer Science >High antibacterial performance of electrospinning silk fibroin/gelatin film modified with graphene oxide-sliver nanoparticles
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High antibacterial performance of electrospinning silk fibroin/gelatin film modified with graphene oxide-sliver nanoparticles

机译：用石墨烯氧化物纳米颗粒改性电纺丝丝纤维素/明胶膜的高抗菌性能

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In this study, graphene oxide-sliver nanoparticle (GO-AgNP) composite was synthesized in situ with GO as the raw material. Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy, and scanning electron microscopy were used to characterize the composite, the spherical Ag particles with a diameter of about 36 nm were well deposited on the surface of GO nanosheets without serious agglomeration, and the antibacterial properties of the composites were also tested. Moreover, the silk fibroin (SF)/gelatin (GT) electrospun nanofiber film was prepared by electrospinning, and the structure of the SF nanofiber film was observed using a Fourier transform infrared spectrometer, X-ray diffractometer, and scanning electron microscope. The TGA curves indicated that the total weight loss rate of SF nanofibers at 400 degrees C was significantly higher than that of SF/GT composite nanofibers (74.72% for pure SF, 62.37% for SF/GT nanocomposites). Finally, the GO-AgNP composite was combined with electrospinning SF film, which resulted in the decrease in surface roughness from 393.5 +/- 123.7 nm to 109.9 +/- 24.43 nm and the decrease in contact angle from 82.48 degrees to 54.78 degrees. Besides, the GO-AgNP composites enhanced the antibacterial performance of SF film greatly, which was conducive to its application in biological tissue engineering. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47904.
机译：在该研究中，将石墨烯氧化物纳米颗粒（GO-AgNP）复合材料以原位合成，作为原料。傅里叶变换红外光谱（FTIR），透射电子显微镜和扫描电子显微镜用于表征复合材料，直径为约36nm的球形Ag颗粒在Go Nanosheets的表面上很好地沉积，而没有严重的聚集，抗菌剂还测试了复合材料的性质。此外，通过静电纺丝制备丝素蛋白（SF）/明胶（GT）电纺纳米纤维膜，使用傅里叶变换红外光谱仪，X射线衍射仪和扫描电子显微镜观察SF纳米纤维膜的结构。 TGA曲线表明，400℃下SF纳米纤维的总重量损失率明显高于SF / GT复合纳米纤维（74.72％，对于纯SF，SF / GT纳米复合材料的62.37％）。最后，将Go-AgNP复合材料与静电纺丝SF膜相结合，从393.5 +/- 123.7nm到109.9 +/- 24.43nm的表面粗糙度降低，接触角下降到82.48度至54.78度。此外，GO-AGNP复合材料大大提高了SF薄膜的抗菌性能，这有利于其在生物组织工程中的应用。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47904。

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