Systematic green synthesis of silver oxide nanoparticles for antimicrobial activity

被引:90
作者
Mani, M. [1 ]
Harikrishnan, R. [2 ]
Purushothaman, P. [2 ]
Pavithra, S. [1 ]
Rajkumar, P. [3 ]
Kumaresan, S. [1 ]
Al Farraj, Dunia A. [4 ]
Elshikh, Mohamed Soliman [4 ]
Balasubramanian, Balamuralikrishnan [5 ]
Kaviyarasu, K. [6 ,7 ]
机构
[1] Arignar Anna Govt Arts Coll, PG & Res Dept Phys, Spectrophys Res Lab, Cheyyar 604407, Tamil Nadu, India
[2] Arignar Anna Govt Arts Coll, PG & Res Dept Phys, Cheyyar 604407, Tamil Nadu, India
[3] King Nandhivarman Coll Arts & Sci, PG & Res Dept Phys, Thellar 604406, Tamil Nadu, India
[4] King Saud Univ, Coll Sci, Dept Bot & Microbiol, POB 22452, Riyadh 11495, Saudi Arabia
[5] Sejong Univ, Coll Life Sci, Dept Food Sci & Technol, Seoul 05006, South Korea
[6] Univ South Africa UNISA, Coll Grad Studies, Nanotechnol Labs, UNESCO UNISA Africa Chair Nanosci, POB 392, Pretoria, South Africa
[7] iThemba Labs Natl Res Fdn NRF, Mat Res Grp MRG, Nanosci African Network NANOAFNET, 1 Old Faure Rd,POB 722, ZA-7129 Somerset West, Western Cape Pr, South Africa
关键词
Cleome gynandra (CG); Electron microscopy; Dynamic light scattering; Silver nitrate nanoparticles; Nanostructured silver particles; Antibacterial activity; CLEOME-GYNANDRA L; A549; ACTIVITY; ANTIBACTERIAL; EXTRACT; CONSTITUENTS; PERFORMANCE; ANTIOXIDANT; LEAF;
D O I
10.1016/j.envres.2021.111627
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In this present research, we succeeded in synthesizing nanostructured silver particles (NS-AgPs) using bio active agent present in the leaf extracts of Cleome gynandra (CG) under green synthesis. While adding silver nitrate (AgNO3) solution in green extracts of CG leaf containing bio compound, the mixture turns from yellow to reddish brown, as a consequence of existence of nanostructured silver particles (NS-AgPs) and later UV instrument is used to obtain the Ultraviolet visible spectroscopy (UV-vis) spectra to confirm existing nanostructured silver particles (NS-AgPs) in aqueous solutions (synthesized sample). To confirm existing functional groups in NS-AgPs, the fourier transform infrared spectroscopy (FTIR) study is carried throughout this research. The scanning and tunneling of wave like nature of electrons passing through powdered NS-AgPs sample gives Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) images respectively, which are carried out to find out the 2-dimensional size and shape distribution of NS-AgPs. Further dynamic light scattering (DLS) and zeta potential studies are used to confirm the size and good stability of NS-AgPs respectively. It is evident that NS-AgPs exhibits a strong toxic activity against microorganism and to confirm this mechanism the antibacterial (against Escherichia coli and Staphylococcus aureus) study is carried out.
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页数:9
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