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Hybrid perylene-cored poly(amidoamine) dendrimer with coumarin and calcozine red 6G end groups: From photophysical properties to cell imaging. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Golshan M, Salami-Kalajahi M, Roghani-Mamaqani H. Synthesis, optical properties, and cell imaging performance of perylene-3,4,9,10-tetracarboxylic diimide (PTCDI)-based poly(amidoamine) (PAMAM) dendrimers. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111159] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Zhang J, Ma X, Chen W, Bai Y, Xue P, Chen K, Chen W, Bian L. Bifunctional single-labelled oligonucleotide probe for detection of trace Ag(I) and Pb(II) based on cytosine-Ag(I)-cytosine mismatches and G-quadruplex. Anal Chim Acta 2021; 1151:338258. [PMID: 33608073 DOI: 10.1016/j.aca.2021.338258] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/23/2021] [Accepted: 01/25/2021] [Indexed: 11/17/2022]
Abstract
A novel bifunctional oligonucleotide (OND) probe with single fluorescent group HEX labelled at 5'-end was designed for detecting trace Ag(I) and Pb(II) in real samples. In the presence of Ag(I), the hairpin structure originating from Ag(I) induced cytosine-Ag(I)-cytosine mismatches causes the proximity of the HEX to the consecutive guanine bases (G)4 at 3'-terminal, resulting in the fluorescence quenching of the HEX. While in the presence of Pb(II), the G-quadruplex structure originating from two G-quartet planes by the intramolecular hydrogen bond with Pb(II) also causes the HEX approaching the (G)4 terminal and consequently the fluorescence quenching. The results showed the quantitative detection of trace Ag(I) and Pb(II) both in the linear response ranges of 1.0-20.0 × 10-9 mol L-1 with no visible interferences of other 11 metal ions observed. And the detection limits were 82 × 10-12 mol L-1 for Ag(I), 92 × 10-12 mol L-1 for Pb(II), respectively. The fluorescence quenching mechanism of the (G)4 to HEX was verified to be the photoinduced electron transfer in the aspect of thermodynamics. This method provided a feasible application for sensitive and selective detection of Pb(II) and Ag(I) in water and Chinese traditional herbs with convenient operation.
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Affiliation(s)
- Jiaxin Zhang
- College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Xian Ma
- College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Wenhua Chen
- College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Yifan Bai
- College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Pengli Xue
- College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Kehan Chen
- College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Wang Chen
- College of Life Science and Technology, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
| | - Liujiao Bian
- College of Life Science, Northwest University, Xi'an, 710069, Shaanxi, China.
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Golshan M, Rostami-Tapeh-Esmail E, Salami-Kalajahi M, Roghani-Mamaqani H. A review on synthesis, photophysical properties, and applications of dendrimers with perylene core. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109933] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Yang H, Zhou C, Yang Y, Chu Z, Yan W, Nie S, Luo J, Lin S, Wang Y. A new three sensing channels platform of Eu@Zn-MOF for quantitative detection of Cr(III). INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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