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Tall A, da Costa KR, de Oliveira MJ, Tapsoba I, Rocha U, Sales TO, Goulart MOF, Santos JCC. Photoluminescent nanoprobes based on thiols capped CdTe quantum dots for direct determination of thimerosal in vaccines. Talanta 2021; 221:121545. [DOI: 10.1016/j.talanta.2020.121545] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/06/2020] [Accepted: 08/12/2020] [Indexed: 12/17/2022]
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2
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Chen C, Chen S, Shiddiky MJA, Chen C, Wu KC. DNA‐Templated Copper Nanoprobes: Overview, Feature, Application, and Current Development in Detection Technologies. CHEM REC 2019; 20:174-186. [DOI: 10.1002/tcr.201900022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/22/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Chung‐An Chen
- Institute of Applied MechanicsNational Taiwan University, No. 1, Sec. 4 Roosevelt Road Taipei 10617 Taiwan
| | - Shih‐Chia Chen
- Institute of Applied MechanicsNational Taiwan University, No. 1, Sec. 4 Roosevelt Road Taipei 10617 Taiwan
| | - Muhammad J. A. Shiddiky
- School of Environment and Science & Queensland Micro- and Nanotechnology CentreNathan campus, Griffith University 170 Kessels Road QLD 4111 Australia
| | - Chien‐Fu Chen
- Institute of Applied MechanicsNational Taiwan University, No. 1, Sec. 4 Roosevelt Road Taipei 10617 Taiwan
| | - Kevin C.‐W. Wu
- Department of Chemical EngineeringNational Taiwan University, No. 1, Sec. 4 Roosevelt Road Taipei 10617 Taiwan
- Division of Medical Engineering Research, National Health
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Bala Subramaniyan S, Veerappan A. Water soluble cadmium selenide quantum dots for ultrasensitive detection of organic, inorganic and elemental mercury in biological fluids and live cells. RSC Adv 2019; 9:22274-22281. [PMID: 35519466 PMCID: PMC9066711 DOI: 10.1039/c9ra04753k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 07/12/2019] [Indexed: 01/01/2023] Open
Abstract
CdSe QDs fluorescence is highly selective and sensitive to mercury.
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Affiliation(s)
- Siva Bala Subramaniyan
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA Deemed University
- Thanjavur – 613401
- India
| | - Anbazhagan Veerappan
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA Deemed University
- Thanjavur – 613401
- India
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Study of Lignin-Modified Silica Gel Adsorption after Association with Six Different Organophenylmercuric Compounds in Chloroform. Int J Mol Sci 2018; 19:ijms19102851. [PMID: 30241343 PMCID: PMC6212809 DOI: 10.3390/ijms19102851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/05/2018] [Accepted: 09/08/2018] [Indexed: 11/17/2022] Open
Abstract
In this study, the adsorption of lignin-modified silica gel after association with six different organophenylmercuric compounds in chloroform was investigated. Adsorption reached approximately 90% of the maximum value within 15 min. The adsorption capacity, Fourier transform infrared spectroscopy, and interaction simulation results indicated that the adsorption proportion resulted from the strong dipole-dipole interaction between the lignin and analyte molecules, and was considered to be size- and structure-dependent. However, the π-π complexation interaction arising from the acidic aromatic moiety of the analyte, which was significant in an apolar environment, was not the major force responsible for the resulting adsorption. Additives, such as acid or ether, which competed with the analyte for the binding site on the lignin molecule, were not beneficial to the interaction, and thus not beneficial to the adsorption processes.
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Ma L, Wu G, Li Y, Qin P, Meng L, Liu H, Li Y, Diao A. A reversible metal ion fueled DNA three-way junction molecular device for "turn-on and -off" fluorescence detection of mercury ions (II) and biothiols respectively with high selectivity and sensitivity. NANOSCALE 2015; 7:18044-18048. [PMID: 26487480 DOI: 10.1039/c5nr04688b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We constructed a reversible molecular device in the nanoscale based on a DNA three-way junction (3WJ) fueled by Hg(2+) binding and sequestration. It is highly responsive to external stimuli, which brings about optically detectable global structural changes. Such a DNA device can serve as a novel "turn-on and -off" fluorescent sensor for Hg(2+) and biothiol detection with high selectivity and sensitivity.
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Affiliation(s)
- Long Ma
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China. and Tianjin Key Laboratory of Industry Microbiology, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Guanrong Wu
- Tianjin Key Laboratory of Industry Microbiology, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China and Biomolecular Sciences Research Complex, EaStCHEM School of Chemistry, University of St Andrews, Fife KY16 9ST, UK.
| | - Yufeng Li
- Tianjin Key Laboratory of Industry Microbiology, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China and Biomolecular Sciences Research Complex, EaStCHEM School of Chemistry, University of St Andrews, Fife KY16 9ST, UK.
| | - Ping Qin
- Tianjin Key Laboratory of Industry Microbiology, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China and Biomolecular Sciences Research Complex, EaStCHEM School of Chemistry, University of St Andrews, Fife KY16 9ST, UK.
| | - Lingpei Meng
- Tianjin Key Laboratory of Industry Microbiology, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China and Biomolecular Sciences Research Complex, EaStCHEM School of Chemistry, University of St Andrews, Fife KY16 9ST, UK.
| | - Haiyan Liu
- Tianjin Key Laboratory of Industry Microbiology, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China and Biomolecular Sciences Research Complex, EaStCHEM School of Chemistry, University of St Andrews, Fife KY16 9ST, UK.
| | - Yuyin Li
- Tianjin Key Laboratory of Industry Microbiology, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China and Biomolecular Sciences Research Complex, EaStCHEM School of Chemistry, University of St Andrews, Fife KY16 9ST, UK.
| | - Aipo Diao
- Tianjin Key Laboratory of Industry Microbiology, School of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China and Biomolecular Sciences Research Complex, EaStCHEM School of Chemistry, University of St Andrews, Fife KY16 9ST, UK.
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Zhou Z, Huang H, Chen Y, Liu F, Huang CZ, Li N. A distance-dependent metal-enhanced fluorescence sensing platform based on molecular beacon design. Biosens Bioelectron 2014; 52:367-73. [DOI: 10.1016/j.bios.2013.09.013] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 09/04/2013] [Accepted: 09/06/2013] [Indexed: 01/06/2023]
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Granzhan A, Kotera N, Teulade-Fichou MP. Finding needles in a basestack: recognition of mismatched base pairs in DNA by small molecules. Chem Soc Rev 2014; 43:3630-65. [DOI: 10.1039/c3cs60455a] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Xu F, Kou L, Jia J, Hou X, Long Z, Wang S. Metal–organic frameworks of zeolitic imidazolate framework-7 and zeolitic imidazolate framework-60 for fast mercury and methylmercury speciation analysis. Anal Chim Acta 2013; 804:240-5. [DOI: 10.1016/j.aca.2013.09.058] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/25/2013] [Accepted: 09/28/2013] [Indexed: 10/26/2022]
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Dou Y, Yang X. Novel high-sensitive fluorescent detection of deoxyribonuclease I based on DNA-templated gold/silver nanoclusters. Anal Chim Acta 2013; 784:53-8. [DOI: 10.1016/j.aca.2013.04.038] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 02/27/2013] [Accepted: 04/12/2013] [Indexed: 01/21/2023]
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Chen LY, Ou CM, Chen WY, Huang CC, Chang HT. Synthesis of photoluminescent Au ND-PNIPAM hybrid microgel for the detection of Hg2+. ACS APPLIED MATERIALS & INTERFACES 2013; 5:4383-4388. [PMID: 23618348 DOI: 10.1021/am400628p] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Poly(N-isopropylacrylamide) microgels (PNIPAM MGs) incorporated with photoluminescent gold nanodots (Au NDs) have been prepared and employed for the detection of mercury ions (Hg(2+)). Each of the PNIPAM MGs (hydrodynamic diameter 615 ± 15 nm) contains several Au NDs (diameter 1.8 ± 0.2 nm) in the Au ND-PNIPAM MGs. Like Au NDs, Au ND-PNIPAM MGs exhibit an absorption band at 375 nm that is assigned for ligand to metal charge transfer mixed with metal centered (ds/dp) states and photoluminescence at 520 nm originated from Au ND/polynuclear gold(I)-thiolate (core/shell) complexes. Purification of Au ND-PNIPAM MGs relative to Au NDs is much easier through a simple centrifugation/wash process. On the basis of Hg(2+)-induced photoluminescence quenching due to the formation of Au-Hg amalgam and formation of Au ND-PNIPAM MGs aggregates, the signal response of Au ND-PNIPAM MGs against Hg(2+) concentration is linear over a range from 2 to 20 nM (r = 0.9945). This selective approach provides limits of detection for Hg(2+) (at a signal-to-noise ratio of 3) of 1.9 and 1.7 nM in phosphate buffer solutions (5 mM, pH 7.0) with and without containing 500 mM NaCl, respectively. This selective and sensitive Au ND-PNIPAM MG probe has been applied to the determination of the concentration of Hg in a representative fish sample, showing its practical potential for monitoring of Hg levels in complicated biological and environmental samples.
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Affiliation(s)
- Li-Yi Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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Qi L, Zhao Y, Yuan H, Bai K, Zhao Y, Chen F, Dong Y, Wu Y. Amplified fluorescence detection of mercury(II) ions (Hg2+) using target-induced DNAzyme cascade with catalytic and molecular beacons. Analyst 2012; 137:2799-805. [PMID: 22551984 DOI: 10.1039/c2an35437c] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In this work, a fluorescent sensing strategy was developed for the detection of mercury(II) ions (Hg(2+)) in aqueous solution with excellent sensitivity and selectivity using a target-induced DNAzyme cascade with catalytic and molecular beacons (CAMB). In order to construct the biosensor, a Mg(2+)-dependent DNAzyme was elaborately designed and artificially split into two separate oligonucleotide fragments. In the presence of Hg(2+), the specific thymine-Hg(2+)-thymine (T-Hg(2+)-T) interaction induced the two fragments to produce the activated Mg(2+)-dependent DNAzyme, which would hybridize with a hairpin-structured MB substrate to form the CAMB system. Eventually, each target-induced activated DNAzyme could catalyze the cleavage of many MB substrates through true enzymatic multiple turnovers. This would significantly enhance the sensitivity of the Hg(2+) sensing system and push the detection limit down to 0.2 nM within a 20 min assay time, much lower than those of most previously reported fluorescence assays. Owning to the strong coordination of Hg(2+) to the T-T mismatched pairs, this proposed sensing system exhibited excellent selectivity for Hg(2+) detection, even in the presence of 100 times of other interferential metal ions. Furthermore, the applicability of the biosensor for Hg(2+) detection in river water samples was demonstrated with satisfactory results. These advantages endow the sensing strategy with a great potential for the simple, rapid, sensitive, and specific detection of Hg(2+) from a wide range of real samples.
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Affiliation(s)
- Lin Qi
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
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Chen WY, Lan GY, Chang HT. Use of fluorescent DNA-templated gold/silver nanoclusters for the detection of sulfide ions. Anal Chem 2011; 83:9450-5. [PMID: 22029551 DOI: 10.1021/ac202162u] [Citation(s) in RCA: 195] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We have developed a one-pot approach to prepare fluorescent DNA-templated gold/silver nanoclusters (DNA-Au/Ag NCs) from Au(3+), Ag(+), and DNA (5'-CCCTTAATCCCC-3') in the presence of NaBH(4) in order to detect sulfide (S(2-)) ions on the basis of fluorescence quenching. The as-prepared DNA-Au/Ag NCs have been characterized by UV-vis absorption, fluorescence, circular dichroism, X-ray photoelectron spectroscopy, and electrospray ionization-mass spectrometry measurements. Relative to DNA-Ag NCs, DNA-Au/Ag NCs are much more stable in high ionic strength media (e.g., 200 mM NaCl). The quantum yield of the as-prepared DNA-Au/Ag NCs is 4.5%. We have demonstrated that the fluorescence of DNA-Au/Ag NCs is quenched by S(2-) ions through the interaction between sulfide ions and gold/silver atoms/ions, a result which leads to changes in the conformation of the templated DNA from packed hairpin to random coil structures. These changes in fluorescence intensity allow sensitive detection of S(2-) ions at concentrations as low as 0.83 nM. To minimize interference from I(-) ions for the detection of S(2-) ions using the DNA-Au/Ag NCs, the addition of sodium peroxydisulfate to the solution is essential. We have validated the practicality of this probe for the detection of S(2-) ions in hot spring and seawater samples, demonstrating its advantages of simplicity, sensitivity, selectivity, and low cost.
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Affiliation(s)
- Wei-Yu Chen
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
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