Sensing behavior and logic operation of a colorimetric fluorescence sensor for Hg 2+ /Cu 2+ ions
| Autor: | Huajun Fang, Jing Zhang, Yuanyuan Liu, Cuiling Lin, Huayu Qiu, Tian He, Luonan Xu, Zhengye Gu, Shouchun Yin, Anle Yang |
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| Rok vydání: | 2016 |
| Předmět: |
Molecular logic gate
Analytical chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence Atomic and Molecular Physics and Optics Spectral line 0104 chemical sciences Analytical Chemistry Ion Metal chemistry.chemical_compound chemistry Excited state visual_art Bathochromic shift visual_art.visual_art_medium BODIPY 0210 nano-technology Instrumentation Spectroscopy |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 167:66-71 |
| ISSN: | 1386-1425 |
| DOI: | 10.1016/j.saa.2016.05.032 |
| Popis: | A BODIPY-based 1 as a colorimetric fluorescence sensor was synthesized, and its metal sensing property was investigated. 1 displayed high selectivity and sensitivity towards Hg2 + and Cu2 + ions among 15 different metal cations. The addition of Hg2 + and Cu2 + ions into 1 in CH3CN resulted in a significant bathochromic shift of the UV absorption spectra from 533 nm to 560 nm and 593 nm, respectively, changing the corresponding colors from pink to purple and blue. When excited at 530 nm, the fluorescence intensity of 1 was quenched over 75% upon addition of Hg2 + ions, while 1 with Cu2 + ions exhibited significant fluorescence enhancement with a 23 nm red-shift. Based on these results, three logic gates (OR, IMPLICATION, and INHIBIT) were obtained by controlling the chemical inputs. |
| Databáze: | OpenAIRE |
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