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Sunlight-induced biosynthesis of silver nanoparticles by animal and fungus biomass and their characterization
Alternative TitleJ. Chem. Technol. Biotechnol.
Wei, Xuetuan1,2,3; Zhou, Huacong1,2,3; Xu, Lin1; Luo, Mingfang4; Liu, Huizhou1,2
2014-02-01
Source PublicationJOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
ISSN0268-2575
Volume89Issue:2Pages:305-311
AbstractBACKGROUNDBiosynthesis of silver nanoparticles (AgNPs) is considered a green method. Sunlight could induce the synthesis of AgNPs with bacteria and plant biomass, while animal and fungus biomass have not been investigated for synthesis of AgNPs under sunlight radiation. RESULTSUnder 80 000 lx sunlight intensity and 4 mg mL(-1) of tryptone solution, the maximum AgNPs yield was obtained after 60 min, and the Ag+ (1 mmol L-1) conversion rate reached 98 2%. Transmission electron microscopy revealed that T-Ag (tryptone-mediated) were circular and oval, with an average diameter of 11.63 +/- 4.17 nm, and Y-Ag (yeast extract-mediated) displayed similar shape and size to T-Ag. X-ray diffraction confirmed that T-Ag and Y-Ag were in the form of nanocrystals. As-prepared AgNPs showed obvious antimicrobial activity against B. subtilis and E. coli. Capping with peptides helped to maintain colloidal stability of AgNPs. Without sunlight, AgNPs showed high stability at pH 7-11 due to high -potential values, while the stability was destroyed at pH 4. Further exposure to sunlight for 48 h also resulted in sedimentation of AgNPs. CONCLUSION

Sunlight could induce tryptone and yeast extract to synthesize AgNPs, and the stability of AgNPs could be regulated by capping peptides, pH, and sunlight exposure. (c) 2013 Society of Chemical Industry

; BACKGROUNDBiosynthesis of silver nanoparticles (AgNPs) is considered a green method. Sunlight could induce the synthesis of AgNPs with bacteria and plant biomass, while animal and fungus biomass have not been investigated for synthesis of AgNPs under sunlight radiation.
KeywordSilver Nanoparticles Biosynthesis Sunlight Radiation Biomass Colloidal Stability
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences ; Technology
DOI10.1002/jctb.4124
URL查看原文
Indexed BySCI
Language英语
WOS KeywordBIOMIMETIC SYNTHESIS ; CULTURE SUPERNATANT ; GREEN SYNTHESIS ; IONIC AG ; IRRADIATION ; REDUCTION
WOS Research AreaBiotechnology & Applied Microbiology ; Chemistry ; Engineering
WOS SubjectBiotechnology & Applied Microbiology ; Chemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000330741300016
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8219
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Natl Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Technol Transfer Ctr, Inst Microbiol, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Wei, Xuetuan,Zhou, Huacong,Xu, Lin,et al. Sunlight-induced biosynthesis of silver nanoparticles by animal and fungus biomass and their characterization[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,2014,89(2):305-311.
APA Wei, Xuetuan,Zhou, Huacong,Xu, Lin,Luo, Mingfang,&Liu, Huizhou.(2014).Sunlight-induced biosynthesis of silver nanoparticles by animal and fungus biomass and their characterization.JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,89(2),305-311.
MLA Wei, Xuetuan,et al."Sunlight-induced biosynthesis of silver nanoparticles by animal and fungus biomass and their characterization".JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 89.2(2014):305-311.
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