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学科主题: Biotechnology & Applied Microbiology ; Microbiology
题名: Morphological alterations in erythrocytes treated with silver nanoparticles biomineralized by marine sediment-derived Bacillus sp VITSSN01
作者: Revathy, T ; Saranya, R ; Jayasri, MA ; Saurav, K ; Suthindhiran, K
通讯作者: ksuthindhiran@vit.ac.in
关键词: Marine microorganisms ; Bacillus sp VITSSN01 ; Silver nanoparticles ; Hemolytic activity ; Antimicrobial activity
刊名: ANNALS OF MICROBIOLOGY
发表日期: 2014
卷: 64, 期:3, 页:1291-1299
收录类别: sci
部门归属: [Revathy, Theerthagiri ; Saranya, Rajamani ; Jayasri, Mangalam Achuthanandan ; Suthindhiran, Krish] VIT Univ, Sch Biosci & Technol, Marine Biotechnol & Biomed Lab, Vellore, Tamil Nadu, India ; [Saurav, Kumar] South China Sea Inst Oceanol CAS, Ctr Marine Microbiol, Key Lab Marine Bioresources Sustainable Utilizat, Res Network Appl Microbiol,Guangdong Key Lab Mat, Guangzhou 5100031, Guangdong, Peoples R China
项目归属: LMB
摘要: Biomineralization-inspired preparation of nanoparticles by marine microorganisms is in the limelight of modern nanotechnology. In recent years, the use of marine microorganisms for the synthesis of nanoparticles has been gaining importance due to the simplicity and eco-friendliness of the approach. Here we describe the synthesis of silver nanoparticles using halotolerant Bacillus sp. isolated from the southern coastal waters of India. Our selective and enriched isolation technique resulted in the isolation of a silver nitrate-resistant novel marine Bacillus sp. isolated from sediments collected at Ennore Port, Chennai, India. The strain was characterized by the polyphasic taxonomic approach, and phenotypic and phylogenetic analysis identified the strain as Bacillus sp. VITSSN01. The resistant strain was further assayed for the synthesis of silver nanoparticles and its biological activity evaluated. Nanoparticles were synthesized under optimized nutritional and cultural conditions with shaking and the production continuously monitored. The nanoparticles thus produced were then characterized by atomic force microscopy, X-ray diffraction, Fourier transform-infrared spectrophotometer and transmission electron microscopy. The mean particle size was 46 nm. Hemotological toxicity of nanoparticles is very severe form and less studied. We therefore checked the synthesized silver nanoparticles for toxicity against erythrocytes and found that the silver nanoparticles exhibited moderate hemolytic activity against human erythrocytes, with a half maximal effective concentration (EC50) value of 60 mu g/ml. Microscopic studies of the treated erythrocytes showed slight structural perturbations. The results of our study strongly suggest that marine microorganisms could be a potential source for the rapid and eco-friendly synthesis of nanoparticles.
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10393
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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Revathy, T; Saranya, R; Jayasri, MA; Saurav, K; Suthindhiran, K.Morphological alterations in erythrocytes treated with silver nanoparticles biomineralized by marine sediment-derived Bacillus sp VITSSN01,ANNALS OF MICROBIOLOGY,2014,64(3):1291-1299
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