壳聚糖-铜复合物中硫纳米粒子的制备及其体外对 Pratylenchus pratensis 杀线虫活性的研究

IF 2 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Pure and Applied Chemistry Pub Date : 2024-05-15 DOI:10.1515/pac-2023-1208

Duy Du Bui, Hong Nhung Nguyen, Phuoc Tho Tran, Nghiem Anh Tuan Le, Quoc Hien Nguyen, D. Phan

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引用次数: 0

摘要

通过在 CS-Cu2+ 复合物的酸性介质中水解硫代硫酸钠（Na2S2O3），制备了壳聚糖-铜（CS-Cu2+）复合物溶液中的硫纳米粒子（SNPs）。SNP 的尺寸与 Cu2+/-NH2 摩尔比成反比，当 Cu2+/-NH2 摩尔比从 0/1 增加到 1/1 时，SNP 的尺寸从 35 nm 减小到 22 nm。紫外可见光谱（UV-Vis）、傅立叶变换红外光谱（FTIR）和 X 射线衍射光谱（XRD）对 SNPs/CS-Cu2+ 复合物进行了表征。通过处理 CS-Cu2+ 复合物和 SNPs/CS-Cu2+ 复合物（Cu2+/-NH2 摩尔比为 0.5/1），研究了其体外对 Pratylenchus pratensis 的杀线虫活性。结果表明，SNPs/CS-Cu2+ 复合物的杀线虫活性高于 CS-Cu2+ 复合物，尤其是处理 48 h 后的 50 %致死剂量（LC50）分别为 77 mg/L 和 89 mg/L。结果表明，制备的 SNPs/CS-Cu2+ 复合物可用作植物的杀线虫剂。

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Preparation of sulfur nanoparticles in chitosan-copper complex and investigation of its nematicidal activity against Pratylenchus pratensis in vitro

Sulfur nanoparticles (SNPs) in chitosan-copper (CS-Cu2+) complex solution were prepared by hydrolysis of sodium thiosulfate (Na2S2O3) in an acidic medium of CS-Cu2+ complex. The size of SNPs was inversely proportional to the Cu2+/−NH2 molar ratio, decreasing from 35 to 22 nm corresponding to the Cu2+/−NH2 molar ratio increasing from 0/1 to 1/1. The SNPs/CS-Cu2+ complex was characterized by Ultraviolet-Visible spectroscopy (UV–Vis), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) spectroscopy. The nematicidal activity against Pratylenchus pratensis in vitro was investigated by treating the CS-Cu2+ complex and SNPs/CS-Cu2+ complex with Cu2+/−NH2 molar ratio of 0.5/1. Results showed that the nematicidal activity of the SNPs/CS-Cu2+ complex was higher than that of the CS-Cu2+ complex, particularly the 50 % lethal dose (LC50) after 48 h of treatment was 77 and 89 mg/L, respectively. The results demonstrated that the prepared SNPs/CS-Cu2+ complex can be used as a nematicide for plants.

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来源期刊

Pure and Applied Chemistry 化学-化学综合

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

3-8 weeks

期刊介绍： Pure and Applied Chemistry is the official monthly Journal of IUPAC, with responsibility for publishing works arising from those international scientific events and projects that are sponsored and undertaken by the Union. The policy is to publish highly topical and credible works at the forefront of all aspects of pure and applied chemistry, and the attendant goal is to promote widespread acceptance of the Journal as an authoritative and indispensable holding in academic and institutional libraries.