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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제25권 제7호
- 발행연도
- 2015.1
- 수록면
- 1,129 - 1,135 (7page)
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초록· 키워드
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The synthesis of gold nanoparticles has gained tremendous attention owing to their immense applications in the field of biomedical sciences. Although several chemical procedures are used for the synthesis of nanoparticles, the release of toxic and hazardous by-products restricts their use in biomedical applications. In the present investigation, gold nanoparticles were synthesized biologically using the culture filtrate of the filamentous fungus Alternaria sp. The culture filtrate of the fungus was exposed to three different concentrations of chloroaurate ions. In all cases, the gold ions were reduced to Au(0), leading to the formation of stable gold nanoparticles of variable sizes and shapes. UV-Vis spectroscopy analysis confirmed the formation of nanoparticles by reduction of Au3+ to Au0. TEM analysis revealed the presence of spherical, rod, square, pentagonal, and hexagonal morphologies for 1 mM chloroaurate solution. However, quasi-spherical and spherical nanoparticles/heart-like morphologies with size range of about 7–13 and 15–18 nm were observed for lower molar concentrations of 0.3 and 0.5 mM gold chloride solution, respectively. The XRD spectrum revealed the face-centered cubic crystals of synthesized gold nanoparticles. FT-IR spectroscopy analysis confirmed the presence of aromatic primary amines, and the additional SPR bands at 290 and 230 nm further suggested that the presence of amino acids such as tryptophan/tyrosine or phenylalanine acts as the capping agent on the synthesized mycogenic gold nanoparticles.
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참고문헌 (24)
참고문헌 신청
Ahmad A / 2003 / Extracellular biosynthesis of monodisperse gold nanoparticles by a novel extremophilic actinomycete, Thermonospora sp / Langmuir 19 : 3550 ~ 3553
Bhainsa KC / 2006 / Extracellular biosynthesis of silver nanoparticles using the fungus Aspergillus fumigatus / Colloids Surf. B Biointerf 47 : 160 ~ 164
Brown SD / 2010 / Gold nanoparticles for the improved anticancer drug delivery of the active component of oxaliplatin / J. Am. Chem. Soc 132 : 4678 ~ 4684
Castro-Longoria E / 2011 / Biosynthesis of silver, gold and bimetallic nanoparticles using the filamentous fungus Neurospora crassa / Colloids Surf. B Biointerf 83 : 42 ~ 48
Corma A / 2008 / Supported gold nanoparticles as catalysts for organic reactions / Chem. Soc. Rev 37 : 2096 ~ 2126
Bhainsa KC / 2006 / Extracellular biosynthesis of silver nanoparticles using the fungus Aspergillus fumigatus / Colloids Surf. B Biointerf 47 : 160 ~ 164
Brown SD / 2010 / Gold nanoparticles for the improved anticancer drug delivery of the active component of oxaliplatin / J. Am. Chem. Soc 132 : 4678 ~ 4684
Castro-Longoria E / 2011 / Biosynthesis of silver, gold and bimetallic nanoparticles using the filamentous fungus Neurospora crassa / Colloids Surf. B Biointerf 83 : 42 ~ 48
Corma A / 2008 / Supported gold nanoparticles as catalysts for organic reactions / Chem. Soc. Rev 37 : 2096 ~ 2126
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