壳聚糖修饰氧化锌纳米颗粒对管状莎草制品的抑菌效果

IF 1.4 Q4 NANOSCIENCE & NANOTECHNOLOGY

Journal of Nanostructures Pub Date : 2020-04-01 DOI:10.22052/JNS.2020.02.020

P. Pholnak, Jidapa Khongbun, Kullanan Suksom, M. Lertworapreecha, S. Suwanboon, C. Sirisathitkul

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引用次数: 2

摘要

将氧化锌的抗真菌性能应用于实际工艺品中，在当地产品的防晒和防真菌增值方面显示出良好的效果。研究了氧化锌(ZnO)对管状莎草篮上曲霉生长的抑制作用。采用x射线衍射(XRD)、傅里叶变换红外(FTIR)分光光度法和热重分析(TGA)对壳聚糖封盖剂合成的ZnO纳米颗粒进行了分析。壳聚糖的加入使ZnO的晶粒尺寸与电镜图像一致，ZnO的表面积与壳聚糖的加入量有关。ZnO在200 ~ 400 nm范围内具有较大的紫外吸光度。在少量使用壳聚糖的情况下，在密切接触中易于聚集的小晶体增强了管状莎草篮的抗真菌活性。壳聚糖修饰的氧化锌对真菌的抑制作用与真菌菌丝的胁迫反应和过氧化氢的生成有关。

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Antifungal Efficacy of Chitosan-Modified Zinc Oxide Nanoparticles on Tube Sedge Products

The antifungal properties of ZnO were implemented in the real handicraft and showed promising results for the value addition of local products by sun-screen and fungi protections. The inhibition of Aspergillus sp. growth on tube sedge basketry by zinc oxide (ZnO) was demonstrated. ZnO nanoparticles synthesized with chitosan capping agents were analyzed by X-ray diffractometry (XRD), Fourier transform infrared (FTIR) spectrophotometry and thermogravimetric analysis (TGA). The crystallite size consistent with electron microscope images and surface area of ZnO were dependent on the amounts of chitosan. ZnO exhibited a large ultraviolet (UV) absorbance in an entire 200-400 nm range when large crystallites agglomerated into bulky aggregates. In the case of small amounts of chitosan used, small crystallites tending to agglomerate in close contacts enhanced antifungal activity on pieces of tube sedge basketry. The fungi inhibition by this chitosan-modified ZnO was attributed to the stress response in fungal hyphae and generation of hydrogen peroxide.

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来源期刊

Journal of Nanostructures NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

7 weeks

期刊介绍： Journal of Nanostructures is a medium for global academics to exchange and disseminate their knowledge as well as the latest discoveries and advances in the science and engineering of nanostructured materials. Topics covered in the journal include, but are not limited to the following: Nanosystems for solar cell, energy, catalytic and environmental applications Quantum dots, nanocrystalline materials, nanoparticles, nanocomposites Characterization of nanostructures and size dependent properties Fullerenes, carbon nanotubes and graphene Self-assembly and molecular organization Super hydrophobic surface and material Synthesis of nanostructured materials Nanobiotechnology and nanomedicine Functionalization of nanostructures Nanomagnetics Nanosensors.