Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectum
Crystallized and spherical-shaped Au and Au–Ag alloy nanoparticles have been synthesized and stabilized using a fungus, F . semitectum in an aqueous system. Aqueous solutions of chloroaurate ions for Au and chloroaurate and Ag+ ions (1 : 1 ratio) for Au–Ag alloy were treated with an extracellular fi...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2008-01-01
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| Series: | Science and Technology of Advanced Materials |
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| Online Access: | http://www.iop.org/EJ/abstract/1468-6996/9/3/035012 |
| _version_ | 1811298835383713792 |
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| author | Balaji Dasaratrao Sawle, Basavaraja Salimath, Raghunandan Deshpande, Mahesh Dhondojirao Bedre, Belawadi Krishnamurthy Prabhakar and Abbaraju Venkataraman |
| author_facet | Balaji Dasaratrao Sawle, Basavaraja Salimath, Raghunandan Deshpande, Mahesh Dhondojirao Bedre, Belawadi Krishnamurthy Prabhakar and Abbaraju Venkataraman |
| author_sort | Balaji Dasaratrao Sawle, Basavaraja Salimath, Raghunandan Deshpande, Mahesh Dhondojirao Bedre, Belawadi Krishnamurthy Prabhakar and Abbaraju Venkataraman |
| collection | DOAJ |
| description | Crystallized and spherical-shaped Au and Au–Ag alloy nanoparticles have been synthesized and stabilized using a fungus, F . semitectum in an aqueous system. Aqueous solutions of chloroaurate ions for Au and chloroaurate and Ag+ ions (1 : 1 ratio) for Au–Ag alloy were treated with an extracellular filtrate of F . semitectum biomass for the formation of Au nanoparticles (AuNP) and Au–Ag alloy nanoparticles (Au–AgNP). Analysis of the feasibility of the biosynthesized nanoparticles and core–shell alloy nanoparticles from fungal strains is particularly significant. The resultant colloidal suspensions are highly stable for many weeks. The obtained Au and Au–Ag alloy nanoparticles were characterized by the surface plasmon resonance (SPR) peaks using a UV-vis spectrophotometer, and the structure, morphology and size were determined by Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), and transmission electron microscopy (TEM). Possible optoelectronics and medical applications of these nanoparticles are envisaged. |
| first_indexed | 2024-04-13T06:26:09Z |
| format | Article |
| id | doaj.art-20d04a48ba244221a3672e976d74b2d2 |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-04-13T06:26:09Z |
| publishDate | 2008-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-20d04a48ba244221a3672e976d74b2d22022-12-22T02:58:24ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142008-01-0193035012Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectumBalaji Dasaratrao Sawle, Basavaraja Salimath, Raghunandan Deshpande, Mahesh Dhondojirao Bedre, Belawadi Krishnamurthy Prabhakar and Abbaraju VenkataramanCrystallized and spherical-shaped Au and Au–Ag alloy nanoparticles have been synthesized and stabilized using a fungus, F . semitectum in an aqueous system. Aqueous solutions of chloroaurate ions for Au and chloroaurate and Ag+ ions (1 : 1 ratio) for Au–Ag alloy were treated with an extracellular filtrate of F . semitectum biomass for the formation of Au nanoparticles (AuNP) and Au–Ag alloy nanoparticles (Au–AgNP). Analysis of the feasibility of the biosynthesized nanoparticles and core–shell alloy nanoparticles from fungal strains is particularly significant. The resultant colloidal suspensions are highly stable for many weeks. The obtained Au and Au–Ag alloy nanoparticles were characterized by the surface plasmon resonance (SPR) peaks using a UV-vis spectrophotometer, and the structure, morphology and size were determined by Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), and transmission electron microscopy (TEM). Possible optoelectronics and medical applications of these nanoparticles are envisaged.http://www.iop.org/EJ/abstract/1468-6996/9/3/035012metal nanoparticlesfungusbiosynthesissurface plasmon resonance |
| spellingShingle | Balaji Dasaratrao Sawle, Basavaraja Salimath, Raghunandan Deshpande, Mahesh Dhondojirao Bedre, Belawadi Krishnamurthy Prabhakar and Abbaraju Venkataraman Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectum Science and Technology of Advanced Materials metal nanoparticles fungus biosynthesis surface plasmon resonance |
| title | Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectum |
| title_full | Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectum |
| title_fullStr | Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectum |
| title_full_unstemmed | Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectum |
| title_short | Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectum |
| title_sort | biosynthesis and stabilization of au and au ag alloy nanoparticles by fungus fusarium semitectum |
| topic | metal nanoparticles fungus biosynthesis surface plasmon resonance |
| url | http://www.iop.org/EJ/abstract/1468-6996/9/3/035012 |
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