Gold core-satellite nanostructure linked by oligonucleotides for detection of glutathione with LSPR scattering spectrum
| Autor: | Ting-Ting Zhai, Ying-Bo Liu, Yue-Bo Wang, Yan-Yan Liang, Xing-Hua Xia |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Nanostructure
Oligonucleotides Metal Nanoparticles 02 engineering and technology Photochemistry 01 natural sciences Analytical Chemistry chemistry.chemical_compound Limit of Detection Particle Size Detection limit Plasmonic nanoparticles Oligonucleotide Scattering 010401 analytical chemistry Mercury Glutathione 021001 nanoscience & nanotechnology 0104 chemical sciences Coupling (electronics) Wavelength chemistry Spectrophotometry Gold 0210 nano-technology |
| Zdroj: | Talanta. 193:123-127 |
| ISSN: | 0039-9140 |
| DOI: | 10.1016/j.talanta.2018.09.096 |
| Popis: | We demonstrated a sensitive method for detection of glutathione (GSH) based on LSPR scattering spectrum using gold core-satellite nanostructure linked by T-Hg2+-T base pair. The core-satellite assembly caused coupling between plasmonic nanoparticles, which inducing distinct change of LSPR peak wavelength. As the interaction between Hg2+ and GSH, the core-satellite nanostructure would be disassembled, which accompanied with spectral blue-shift of the scattering spectrum. By using this method, GSH could be quantitatively detected, and the detection limits can reach to 0.1 µM. |
| Databáze: | OpenAIRE |
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