Ultra-Small Silver Nanoparticles: A Sustainable Green Synthesis Approach for Antibacterial Activity

被引:14
|
作者
Emanuel Castaneda-Aude, Javier [1 ,2 ]
Ruben Morones-Ramirez, Jose [1 ,2 ]
Alejandro De Haro-Del Rio, David [1 ]
Leon-Buitimea, Angel [1 ,2 ]
Diaz Barriga-Castro, Enrique [3 ]
Enrique Escarcega-Gonzalez, Carlos [1 ,2 ]
机构
[1] Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Pedro Alba S-N, San Nicolas De Los Garza 66455, Nuevo Leon, Mexico
[2] Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Ctr Invest Biotecnol & Nanotecnol, Parque Invest & Innovac Tecnol, Apodaca 66629, Nuevo Leon, Mexico
[3] Ctr Invest Quim Aplicada, Enr Reyna H 140,San Jose Cerritos, Saltillo 25294, Coahuila, Mexico
来源
ANTIBIOTICS-BASEL | 2023年 / 12卷 / 03期
关键词
ultra-small nanoparticles; clinical multidrug-resistant bacteria; silver nanoparticles; green synthesis; organic waste; ANTIMICROBIAL ACTIVITY; PEEL EXTRACT; GOLD; WASTE;
D O I
10.3390/antibiotics12030574
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
The present study centers on the synthesis of ultra-small silver nanoparticles (AgNPs) with antibacterial properties using citrus peel residues (orange, lemon, and grapefruit) as reducing and stabilizing agents, and on assessing their antibacterial activity against multidrug-resistant clinical Staphylococcus aureus. The synthesized AgNPs were analyzed by various techniques, including UV-Vis spectroscopy, SAED, TEM, XRD, FTIR, and Raman. The results demonstrate the formation of ultra-small, monodisperse, quasi-spherical AgNPs with an average particle size of 2.42 nm for AgNPs produced with mixed extracts. XRD analysis indicated that the AgNPs have a crystal size of 9.71 to 16.23 nm. The AgNPs exhibited potent inhibitory activity against resistant S. aureus, with a minimum inhibitory concentration (MIC) of 15.625 to 62.50 ppm. The findings suggest that the ultra-small nanometer size of the AgNPs could be attributed to the synthesis method that employs ambient conditions and the presence of polyphenolic compounds from citrus peel. Consequently, AgNPs obtained through sustainable green synthesis hold significant potential in combating clinical multi-resistant bacterial strains that are challenging to treat and eradicate. This approach also contributes to the revaluation of citrus residues in the region, which is an ongoing environmental issue today.
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页数:17
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