Synthesis, Characterization and Remedial Action of Biogenic Silver Nanoparticles and Chitosan-Silver Nanoparticles against Bacterial Pathogens

纳米颗粒 吸光度 纳米材料 银纳米粒子 核化学 水溶液 傅里叶变换红外光谱 抗菌活性 化学 材料科学 纳米技术 化学工程 色谱法 有机化学 细菌 遗传学 生物 工程类
作者
Piyush Kumar Gupta,Deepak Kumar,M. Thaveena,Soumya Pandit,Somya Sinha,R. Ranjithkumar,Walaa F. Alsanie,Vijay Kumar Thakur
出处
期刊:Journal of Renewable Materials [Computers, Materials and Continua (Tech Science Press)]
卷期号:10 (12): 3093-3105
标识
DOI:10.32604/jrm.2022.019335
摘要

Custard apple is a dry land fruit. Its leaves exhibit different pharmacological activities. In the present study, both silver (Ag) nanoparticles and chitosan-coated Ag (Chi-Ag) nanoparticles were fabricated using the aqueous leaf extract of the custard apple plant. During preliminary phytochemical analysis, various types of phytocompounds were found in the aqueous leaf extract of the same plant. Next, both nanoparticles were physiochemically characterized. FTIR analysis exhibited the fingerprint vibrational peaks of active bioactive compounds in plant extract, Ag nanoparticles, and Chi-Ag nanoparticles. UV/Visible spectral analysis revealed the highest absorbance peak at 419 nm, indicating the presence of Ag nanoparticles. XRD analysis presented the face-centered cubic (FCC) structure of both prepared nanomaterials. Further, the average crystalline size of both Ag nanoparticles and Chi-Ag nanoparticles was calculated to be 23 and 74 nm, respectively. FESEM analysis showed the spherical and cubical shapes of Ag nanoparticles and Chi-Ag nanoparticles, respectively. EDS analysis indicated a peak around 3.29 keV, conforming to the binding energies of Ag ions. The biogenic nanomaterial also showed strong antibacterial activity against all tested bacterial pathogens.
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