Synthesis and Excellent Antibacterial Activity of Ag_2O-Loaded Carboxymethyl Starch Nanocomposites
文献类型：CNKI期刊论文
| 作者 | WAN Lina; YU Liangmin; HOU Jin; ZHAO Xia
|
| 发表日期 | 2023-06-06 |
| 出处 | Journal of Ocean University of China
 |
| 关键词 | antibacterial activity silver oxide nanoparticles carboxymethyl starch |
| 英文摘要 | Carboxymethyl starch/silver oxide nanocomposites(CMS-Ag_2O NCs) were successfully fabricated by modifying carboxymethyl starch(CMS) with Ag_2O obtained from an aqueous AgNO_3 solution as silver source. Ag_2O nanoparticles(NPs) formed on the surface of CMS by ion exchange. Based on SEM images, the diameters of Ag_2O NPs were determined to be between 50 and 100 nm. From the XRD spectra of CMS-Ag_2O NCs, the new diffraction peaks appeared at 33.88° and 38.08°, which were attributed to the Ag_2O NPs. According to the XPS analysis, Ag 3d_(5/2) and Ag 3d_(3/2) peaks in CMS-Ag_2O NCs were fitted into two main peaks centered at 367.6 eV and 373.6 eV, which were attributed to Ag+. The antibacterial efficiencies of CMS-Ag_2O NCs against Escherichia coli, Staphylococcus aureus, Pseudoalteromonas tetraodonis, Micrococcus luteus, and Shewanella putrefaciens were determined to be 99.6%, 99.7%, 99.4%, 99.5%, and 99.6%, respectively. The antibacterial efficiencies of CMS-Ag_2O NCs against the bacterial species were all greater than 99%. Therefore, these results indicated that CMS-Ag_2O NCs was highly effective as a bactericidal agent against multiple bacterial species. CMS-Ag_2O NCs can be further applied to antifouling coating. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National Key Research and Development Project (No. 2019YFC0312103) ; the Open Fund of Shandong Key Laboratory of Corrosion Science (No. KLCS201905) |
| 卷 | v.22期:03页:146-152 |
| 语种 | 英文; |
| 分类号 | TB332 |
| ISSN号 | 1672-5182 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187098]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofMarineChemistryTheoryandTechnology,MinistryofEducation,CollegeofChemistryandChemicalEngineering,OceanUniversityofChina 2.ShandongKeyLaboratoryofCorrosionScience,InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | WAN Lina,YU Liangmin,HOU Jin,et al. Synthesis and Excellent Antibacterial Activity of Ag_2O-Loaded Carboxymethyl Starch Nanocomposites. 2023. |
入库方式： OAI收割
来源：海洋研究所
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