Optimization for rapid synthesis of silver nanoparticles and its effect on phytopathogenic fungi

被引：273
作者：
Krishnaraj, C. [1 ]
Ramachandran, R. [1 ]
Mohan, K. [1 ]
Kalaichelvan, P. T. [1 ]
机构：
[1] Univ Madras, Ctr Adv Studies Bot, Madras 600025, Tamil Nadu, India
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2012年 / 93卷
关键词：
Acalypha indica; Silver nanoparticles; Phytopathogenic fungi; ESCHERICHIA-COLI; BIOSYNTHESIS; MODEL; IONS;
D O I：
10.1016/j.saa.2012.03.002
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
In this present study, silver nanoparticles were synthesized by green chemistry approach using Acalypha indica leaf extract as reducing agents. The reaction medium employed in the synthesis process was optimized to attain better yield, controlled size and stability. Further, the biosynthesized silver nanoparticles were conformed through UV-vis spectrum, XRD and HR-TEM analyses. Different concentration of silver nanoparticles were tested to know the inhibitory effect of fungal plant pathogens namely Alternaria alternata, Sclerotinia sclerotiorum, Macrophomina phaseolina, Rhizoctonia solani, Botrytis cinerea and Curvularia lunata. Interestingly, 15 mg concentration of silver nanoparticles showed excellent inhibitory activity against all the tested pathogens. Thus, the obtained results clearly suggest that silver nanoparticles may have important applications in controlling various plant diseases caused by fungi. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：95 / 99
页数：5
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