Fluorescence enhancement using silver nanotriangle arrays
We describe the fabrication of silver nanotriangle array using angle resolved nanosphere lithography and utilizing the same for enhancing fluorescence. The well established nanosphere lithography is modified by changing the angle of deposition between the nanosphere mask and the beam of silver being...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/97709 http://hdl.handle.net/10220/13647 |
| _version_ | 1826122936543608832 |
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| author | Hegde, Gopalkrishna M. Kannadorai, Ravi Kumar Asundi, Anand Krishna |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Hegde, Gopalkrishna M. Kannadorai, Ravi Kumar Asundi, Anand Krishna |
| author_sort | Hegde, Gopalkrishna M. |
| collection | NTU |
| description | We describe the fabrication of silver nanotriangle array using angle resolved nanosphere lithography and utilizing the same for enhancing fluorescence. The well established nanosphere lithography is modified by changing the angle of deposition between the nanosphere mask and the beam of silver being deposited resulting in nanotriangles of varying surface area and density. The 470 nm plasmon resonance wavelength of the substrate was determined using minimum reflectivity method which closely matches with excitation wavelength of the fluorophore. Ten times enhancement in fluorescence emission intensity is obtained from fluorescein isothiocyanate coated on top of silver nanotriangle array separated by a spacer layer of poly vinyl alcohol as compared to glass. The enhanced fluorescence emission is attributed to the increase in local field enhancement. |
| first_indexed | 2024-10-01T05:56:24Z |
| format | Journal Article |
| id | ntu-10356/97709 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:56:24Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/977092020-03-07T13:19:26Z Fluorescence enhancement using silver nanotriangle arrays Hegde, Gopalkrishna M. Kannadorai, Ravi Kumar Asundi, Anand Krishna School of Mechanical and Aerospace Engineering We describe the fabrication of silver nanotriangle array using angle resolved nanosphere lithography and utilizing the same for enhancing fluorescence. The well established nanosphere lithography is modified by changing the angle of deposition between the nanosphere mask and the beam of silver being deposited resulting in nanotriangles of varying surface area and density. The 470 nm plasmon resonance wavelength of the substrate was determined using minimum reflectivity method which closely matches with excitation wavelength of the fluorophore. Ten times enhancement in fluorescence emission intensity is obtained from fluorescein isothiocyanate coated on top of silver nanotriangle array separated by a spacer layer of poly vinyl alcohol as compared to glass. The enhanced fluorescence emission is attributed to the increase in local field enhancement. 2013-09-24T06:56:28Z 2019-12-06T19:45:45Z 2013-09-24T06:56:28Z 2019-12-06T19:45:45Z 2012 2012 Journal Article Kannadorai, R. K., Hegde, G. M., & Asundi, A. K. (2012). Fluorescence enhancement using silver nanotriangle arrays. Journal of nanoscience and nanotechnology, 12(5), 3873-3878(6). https://hdl.handle.net/10356/97709 http://hdl.handle.net/10220/13647 10.1166/jnn.2012.6143 en Journal of nanoscience and nanotechnology |
| spellingShingle | Hegde, Gopalkrishna M. Kannadorai, Ravi Kumar Asundi, Anand Krishna Fluorescence enhancement using silver nanotriangle arrays |
| title | Fluorescence enhancement using silver nanotriangle arrays |
| title_full | Fluorescence enhancement using silver nanotriangle arrays |
| title_fullStr | Fluorescence enhancement using silver nanotriangle arrays |
| title_full_unstemmed | Fluorescence enhancement using silver nanotriangle arrays |
| title_short | Fluorescence enhancement using silver nanotriangle arrays |
| title_sort | fluorescence enhancement using silver nanotriangle arrays |
| url | https://hdl.handle.net/10356/97709 http://hdl.handle.net/10220/13647 |
| work_keys_str_mv | AT hegdegopalkrishnam fluorescenceenhancementusingsilvernanotrianglearrays AT kannadorairavikumar fluorescenceenhancementusingsilvernanotrianglearrays AT asundianandkrishna fluorescenceenhancementusingsilvernanotrianglearrays |