1
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Satheeshkumar K, Saravana Kumar P, Nandhini C, Shanmugapriya R, Vennila K, Elango KP. A simple metal ion displacement-type turn-on fluorescent probe for the detection of halide ions in 100% water – Spectroscopic and TD-DFT investigations. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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2
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Satheeshkumar K, Saravana Kumar P, Shanmugapriya R, Nandhini C, Vennila K, Elango KP. An easy to make Hg(II) complex as a selective and sensitive fluorescent turn-on chemosensor for iodide in an aqueous solution based on metal ion displacement mechanism. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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3
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Saqib M, Bashir S, Ali S, Hao R. Highly selective and sensitive detection of mercury (II) and dopamine based on the efficient electrochemiluminescence of Ru(bpy)32+ with acridine orange as a coreactant. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Wang L, Lou C, Zhao M, Zhao B, Zhao H, Ma W, Wang A, Wang X, Wang N, Li Y. Hg2+-induced excimer of a naphthalene-based fluorescent probe for recognition I–. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Zhen J, Liang G, Chen R, Jia W. Label-free hairpin-like aptamer and EIS-based practical, biostable sensor for acetamiprid detection. PLoS One 2020; 15:e0244297. [PMID: 33362222 PMCID: PMC7757884 DOI: 10.1371/journal.pone.0244297] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 12/08/2020] [Indexed: 12/25/2022] Open
Abstract
Acetamiprid (ACE) is a kind of broad-spectrum pesticide that has potential health risk to human beings. Aptamers (Ap-DNA (1)) have a great potential as analytical tools for pesticide detection. In this work, a label-free electrochemical sensing assay for ACE determination is presented by electrochemical impedance spectroscopy (EIS). And the specific binding model between ACE and Ap-DNA (1) was further investigated for the first time. Circular dichroism (CD) spectroscopy and EIS demonstrated that the single strand AP-DNA (1) first formed a loosely secondary structure in Tris-HClO4 (20 mM, pH = 7.4), and then transformed into a more stable hairpin-like structure when incubated in binding buffer (B-buffer). The formed stem-loop bulge provides the specific capturing sites for ACE, forming ACE/AP-DNA (1) complex, and induced the RCT (charge transfer resistance) increase between the solution-based redox probe [Fe(CN)6]3−/4− and the electrode surface. The change of ΔRCT (charge transfer resistance change, ΔRCT = RCT(after)-RCT(before)) is positively related to the ACE level. As a result, the AP-DNA (1) biosensor showed a high sensitivity with the ACE concentration range spanning from 5 nM to 200 mM and a detection limit of 1 nM. The impedimetric AP-DNA (1) sensor also showed good selectivity to ACE over other selected pesticides and exhbited excellent performance in environmental water and orange juice samples analysis, with spiked recoveries in the range of 85.8% to 93.4% in lake water and 83.7% to 89.4% in orange juice. With good performance characteristics of practicality, sensitivity and selectivity, the AP-DNA (1) sensor holds a promising application for the on-site ACE detection.
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Affiliation(s)
- Jianhui Zhen
- Shijiazhuang Customs Technology Center P.R. China, Shijiazhuang, Hebei Province, China
| | - Gang Liang
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Science, Beijing, China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
- * E-mail:
| | - Ruichun Chen
- Shijiazhuang Customs Technology Center P.R. China, Shijiazhuang, Hebei Province, China
| | - Wenshen Jia
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Science, Beijing, China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
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6
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Halawa MI, Wu G, Li BS. Development of luminol-based chemiluminescence approach for ultrasensitive sensing of Hg(II) using povidone-I 2 protected gold nanoparticles as an efficient coreactant. Anal Bioanal Chem 2020; 413:649-659. [PMID: 33155132 DOI: 10.1007/s00216-020-03035-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/16/2020] [Accepted: 10/27/2020] [Indexed: 11/30/2022]
Abstract
In this work, we fabricated gold nanoparticles (AuNPs) capped with both polyvinyl pyrrolidone (PVP) and iodine (I2) to act as efficient chemiluminescent coreactants for luminol. AuNPs synthesis was based on the direct chemical reduction of Au3+ with NaBH4 in the presence of PVP-I2 complex. The successful synthesis of PVP-I2@AuNPs was confirmed with scanning electron microscopy (SEM) and UV-vis spectrophotometry. Chemiluminescence (CL) intensity of luminol was greatly enhanced, upon its chemical reaction with chemisorbed I2 on AuNPs surfaces owing to the excellent catalytic activity of AuNPs. The PVP-I2@AuNPs/luminol CL sensing system was successfully applied for determination of Hg2+ ions and the results displayed linearity in a wide range from 0.5 to 2000 nM and an ultrasensitive response to 1.0 nM Hg2+. The detection limit of Hg2+ ions was 0.1 nM, which was 100 times lower than the limit value (10 nM) defined by the U.S. Environmental Protection Agency in drinkable water. This ultrasensitive luminogenic system for Hg2+ detection also exhibited excellent selectivity among 13 types of metals, suggesting that the luminol/PVP-I2@AuNPs system is a promising sensor for real-time detection of Hg2+. Graphical abstract.
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Affiliation(s)
- Mohamed Ibrahim Halawa
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, Guangdong, China. .,College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, Guangdong, China. .,Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
| | - GuoXing Wu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, Guangdong, China
| | - Bing Shi Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, Guangdong, China.
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7
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Ma N, Ren X, Wang H, Kuang X, Fan D, Wu D, Wei Q. Ultrasensitive Controlled Release Aptasensor Using Thymine–Hg2+–Thymine Mismatch as a Molecular Switch for Hg2+ Detection. Anal Chem 2020; 92:14069-14075. [DOI: 10.1021/acs.analchem.0c03110] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ning Ma
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Xiang Ren
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Huan Wang
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Xuan Kuang
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Dawei Fan
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Dan Wu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
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8
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Li Y, Han S. Carbon dots-enhanced chemiluminescence method for the sensitive determination of iodide. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104638] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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9
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Qi Y, Ma J, Chen X, Xiu FR, Chen Y, Lu Y. Practical aptamer-based assay of heavy metal mercury ion in contaminated environmental samples: convenience and sensitivity. Anal Bioanal Chem 2019; 412:439-448. [PMID: 31773229 DOI: 10.1007/s00216-019-02253-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 10/25/2019] [Accepted: 10/30/2019] [Indexed: 01/08/2023]
Abstract
Due to heavy metals' magnified pollution from their accumulation in the ecosystem, practical detection of ultra-low concentration of heavy metals in environmental sample is of great significance for environmental supervision and maintenance of people's health. Herein, a practical and sensitive assay of heavy metal mercury was developed by visually observing (or spectrum detecting) the change of cationic gold nanoparticles (AuNPs), which is directly caused by mercury ion induced hybridization between non-canonical base pairs. In this assay, signal probe's response was direct rather than the indirect salt induction, thus avoiding the defect of salt-induced indirect response. It makes the analysis more sensitive. The results showed that the response of 8.2 × 10-8 M Hg2+ could be observed with naked eye and the detection limit of Hg2+ in spectrometric determination was 4.9 × 10-11 M, which is more than one order of magnitude lower than that from indirect response pattern of signal probe. In addition, high specificity of the affinity chemistry for T-Hg-T renders the assay to be highly selective. Compared with the results of cold vapor atom adsorption spectroscopy (CVAAS), this analysis has good reliability for the detection of mercury. The results fully indicate that the developed assay is an ideal alternative for online detection of heavy metal mercury in environmental pollution samples.
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Affiliation(s)
- Yingying Qi
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China. .,Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation, Xi'an, 710054, Shaanxi, China.
| | - Jinxin Ma
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
| | - Xiandong Chen
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
| | - Fu-Rong Xiu
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China.,Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation, Xi'an, 710054, Shaanxi, China
| | - Yiting Chen
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
| | - Yongwei Lu
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
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10
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Affiliation(s)
- Li Deng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jingying Zhai
- SUSTech Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
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11
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A sensitive and label-free sensor for melamine and iodide by target-regulating the formation of G-quadruplex. Microchem J 2019. [DOI: 10.1016/j.microc.2019.01.044] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Park HJ, Lee SS. Strategic Approaches for Highly Selective and Sensitive Detection of Hg 2+ Ion Using Mass Sensitive Sensors. ANAL SCI 2019; 35:883-888. [PMID: 31006718 DOI: 10.2116/analsci.19p070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Here we present a quartz crystal microbalance (QCM) sensor for the highly selective and sensitive detection of Hg2+ ion, a toxic chemical species and a hazardous environmental contaminant. Hg2+ ion can be quantitatively measured based on changes in the resonance frequency of QCM following mass changes on the QCM sensor surface. The high selectivity for Hg2+ ion in this study can be obtained using a thymine-Hg2+-thymine pair, which is more stable than the adenine-thymine base pair in DNA. On the other hand, gold nanoparticles (AuNPs) and their size-enhancement techniques were used to amplify the QCM signals to increase the sensitivity for Hg2+ ion. With this strategic approach, the proposed QCM sensor can be used to quantitatively analyze Hg2+ ion with high selectivity and sensitivity. The detection limit was as low as 98.7 pM. The sensor failed to work with other metal ions at concentrations 1000-times higher than that of the Hg2+ ion. Finally, the recovery does not exceed 10% of the original value for the detection of Hg2+ ion in tap and bottled water. The results indicate acceptable accuracy and precision for practical applications.
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Affiliation(s)
- Hyeoun Ji Park
- Department of Pharmaceutical Engineering, Soonchunhyang University
| | - Soo Suk Lee
- Department of Pharmaceutical Engineering, Soonchunhyang University
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13
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Saqib M, Bashir S, Li H, Wang S, Jin Y. Lucigenin-Tris(2-carboxyethyl)phosphine Chemiluminescence for Selective and Sensitive Detection of TCEP, Superoxide Dismutase, Mercury(II), and Dopamine. Anal Chem 2019; 91:3070-3077. [DOI: 10.1021/acs.analchem.8b05486] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Muhammad Saqib
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
| | - Shahida Bashir
- Faculty of Science, Department of Mathematics, University of Gujrat, Gujrat 50700, Pakistan
| | - Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
| | - ShanShan Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
| | - Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
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14
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Chen Z, Niu Y, Cheng G, Tong L, Zhang G, Cai F, Chen T, Liu B, Tang B. A fast, highly sensitive and selective assay of iodide ions with single-stranded DNA-templated copper nanoparticles as a fluorescent probe for its application in Kunming mice samples. Analyst 2018; 142:2781-2785. [PMID: 28653059 DOI: 10.1039/c7an00595d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of fast, sensitive, selective and flexible methods for the detection of iodide is highly demanded and is of great significance. In this work, single-stranded DNA-templated copper nanoparticles (ssDNA-CuNPs) generated by sodium ascorbate reduction of Cu2+ along the single-stranded DNA of poly-T were utilized as a fluorescent probe for the determination of iodide ions (I-). The detection scheme is based on the instant quenching of the fluorescence of ssDNA-CuNPs by iodide ions. I- can be quantified in the concentration range from 0.050 to 40 μM and from 40 to 80 μM, and the limit of detection is as low as 15 nM. This method provides a simple and convenient strategy for the biochemical assay of I-, which is also helpful for early diagnosis of related diseases. The establishment of a low cost and fast detection method would be particularly important in developing countries where medical supplies are lacking.
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Affiliation(s)
- Zhenzhen Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
| | - Yaxin Niu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
| | - Guiying Cheng
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
| | - Lili Tong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
| | - Guanglu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
| | - Feng Cai
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
| | - Tingting Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
| | - Bao Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China.
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15
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Chemiluminescence assay for detection of 2-hydroxyfluorene using the G-quadruplex DNAzyme-H 2O 2-luminol system. Mikrochim Acta 2017; 185:54. [PMID: 29594378 DOI: 10.1007/s00604-017-2555-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 11/09/2017] [Indexed: 12/13/2022]
Abstract
A chemiluminescence (CL) based assay is described for the determination of the environmental pollutant 2-hydroxyfluorene (2-HOFlu) which is found to inhibit the CL of a system composed of the G-quadruplex/hemin complex (a DNAzyme), H2O2, and luminol. The G-rich aptamer PW17 is transformed to a potassium(I)-stabilized G-quadruplex-hemin complex which displays peroxidase-like activity to catalyze the oxidation of luminol by H2O2 which is accompanied by strong blue CL emission. On addition of 2-HOFlu, it will participate in the G-quadruplex DNAzyme-mediated oxidation by H2O2. As a result, CL intensity is decreased. The difference in CL intensity (ΔI) before and after addition of 2-HOFlu serves as the signal for its quantitation. In water of pH 9.0, a linear relationship is found for the 1 nM to 1 μM concentration range, with a 0.2 nM detection limit. The assay is highly selective over other fluorene derivatives. It was successfully applied to the determination of 2-HOFlu in spiked lake water samples. The method is rapid, cost-effective and convenient. Conceivably, it has a wide scope in that it may be applied to other target pollutants for which G-quadruplexes are available. Graphical abstract A chemiluminescence (CL) assay is described for the determination of the environmental pollutant 2-hydroxyfluorene (2-HOFlu) based on the inhibition of the CL system composed of the G-quadruplex/hemin complex (a DNAzyme), H2O2, and luminol.
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16
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Babamiri B, Salimi A, Hallaj R. Switchable electrochemiluminescence aptasensor coupled with resonance energy transfer for selective attomolar detection of Hg 2+ via CdTe@CdS/dendrimer probe and Au nanoparticle quencher. Biosens Bioelectron 2017; 102:328-335. [PMID: 29161665 DOI: 10.1016/j.bios.2017.11.034] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 10/13/2017] [Accepted: 11/07/2017] [Indexed: 12/15/2022]
Abstract
In the present study, an ultrasensitive electrochemiluminescence (ECL) aptasensing assay for selective detection of Hg2+ was designed. In this electrochemiluminescence resonance energy transfer (ECL-RET) approach, Fe3O4@SiO2/dendrimers/QDs exhibited amplified ECL emissions (switch "on" state) and with the hybridization between T-rich ssDNA(S1) immobilized on the Fe3O4@SiO2/dendrimers/QDs and AuNPs modified with complementary aptamer (AuNPs-S2), the ECL of QDs nanocomposites was efficiently quenched (switch "off" state). In the presence of Hg2+ ions, formation of strong and stable T-Hg2+-T complex led to the release of the AuNPs-S2 from double-stranded DNA(dsDNA) and the recovery of the ECL signal of QDs (second signal switch "on" state). Under optimal conditions, Hg2+ can be detected in a wide linear range from 20aM to 2µM with a very low detection limit of 2aM. The proposed ECL aptasensor showed high selectivity for Hg2+ determination compared to other environmentally relevant metal ions at concentration ratio more than 1000 times. The aptasensor was used for detection Hg2+ ions from samples of tap waters, carp and saltwater fishes with satisfactory results. The aptasensor exhibited high sensitivity, wide linear response (11 orders of magnitude), excellent reproducibility and stability. The proposed aptasensor will be a promising candidate for facile and rapid determination of Hg2+in environmental and fishery samples.
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Affiliation(s)
- Bahareh Babamiri
- Department of Chemistry, University of Kurdistan, 66177-15175 Sanandaj, Iran
| | - Abdollah Salimi
- Department of Chemistry, University of Kurdistan, 66177-15175 Sanandaj, Iran; Research Center for Nanotechnology, University of Kurdistan, 66177-15175 Sanandaj, Iran.
| | - Rahman Hallaj
- Department of Chemistry, University of Kurdistan, 66177-15175 Sanandaj, Iran; Research Center for Nanotechnology, University of Kurdistan, 66177-15175 Sanandaj, Iran.
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17
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Long Z, Fang DC, Ren H, Ouyang J, He L, Na N. Excited Oxidized-Carbon Nanodots Induced by Ozone from Low-Temperature Plasma to Initiate Strong Chemiluminescence for Fast Discrimination of Metal Ions. Anal Chem 2016; 88:7660-6. [DOI: 10.1021/acs.analchem.6b01499] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zi Long
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - De-Cai Fang
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hong Ren
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jin Ouyang
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lixin He
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Na Na
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
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18
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Sandhu S, Kumar R, Singh P, Walia A, Vanita V, Kumar S. Ratiometric fluorophore for quantification of iodide under physiological conditions: applications in urine analysis and live cell imaging. Org Biomol Chem 2016; 14:3536-43. [DOI: 10.1039/c6ob00373g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ratio of fluorescence intensity of fluorophoreI395 nm/I475 nmvs.log [I−] undergoes linear change over a broad iodide concentration range of 10−9to 10−5M and finds application in urine analysis and live cell imaging.
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Affiliation(s)
- Sana Sandhu
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar 143005
- India
| | - Rahul Kumar
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar 143005
- India
| | - Prabhpreet Singh
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar 143005
- India
| | - Amandeep Walia
- Department of Human Genetics
- Guru Nanak Dev University
- Amritsar143005
- India
| | - Vanita Vanita
- Department of Human Genetics
- Guru Nanak Dev University
- Amritsar143005
- India
| | - Subodh Kumar
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar 143005
- India
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19
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Chen H, Zhang X, Sun H, Sun X, Shi Y, Xu S, Tang Y. Visual detection of mercury(ii) based on recognition of the G-quadruplex conformational transition by a cyanine dye supramolecule. Analyst 2015; 140:7170-4. [DOI: 10.1039/c5an01507c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Visual detection of mercury(ii) based on recognition of the G-quadruplex conformational transition by a cyanine dye supramolecule is reported.
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Affiliation(s)
- Hongbo Chen
- College of Chemistry Engineering
- North China University of Science and Technology
- Tangshan
- PR China
- National Laboratory for Molecular Sciences
| | - Xiufeng Zhang
- College of Chemistry Engineering
- North China University of Science and Technology
- Tangshan
- PR China
| | - Hongxia Sun
- National Laboratory for Molecular Sciences
- Center for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences
- Beijing
- PR China
| | - Xiaoran Sun
- College of Chemistry Engineering
- North China University of Science and Technology
- Tangshan
- PR China
| | - Yunhua Shi
- National Laboratory for Molecular Sciences
- Center for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences
- Beijing
- PR China
| | - Shujuan Xu
- National Laboratory for Molecular Sciences
- Center for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences
- Beijing
- PR China
| | - Yalin Tang
- National Laboratory for Molecular Sciences
- Center for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences
- Beijing
- PR China
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20
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Highly sensitive electroluminescence immunoassay for Hg(II) ions based on the use of CdSe quantum dots, the methylmercury-6-mercaptonicotinic acid-ovalbumin conjugate, and a specific monoclonal antibody. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1343-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Zhai Q, Zhang S, Jiang H, Wei Q, Wang E, Wang J. Biomimetic nanopore for sensitive and selective detection of Hg(ii) in conjunction with single-walled carbon nanotubes. J Mater Chem B 2014; 2:6371-6377. [DOI: 10.1039/c4tb00844h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Through SWNTs, duplex DNA derived from folding of single-stranded DNA can be quantitated with Zr4+–PEI coated cone-shaped nanopore. With Hg2+ detection, sensitivity and selectivity based on this paradigm is guaranteed without probe immobilization.
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Affiliation(s)
- Qingfeng Zhai
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan, China
- State Key Laboratory of Electroanalytical Chemistry
| | - Siqi Zhang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun, China
| | - Hong Jiang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun, China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan, China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun, China
| | - Jiahai Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan, China
- State Key Laboratory of Electroanalytical Chemistry
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22
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G-quadruplexes as sensing probes. Molecules 2013; 18:14760-79. [PMID: 24288003 PMCID: PMC6270327 DOI: 10.3390/molecules181214760] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 11/13/2013] [Accepted: 11/13/2013] [Indexed: 01/09/2023] Open
Abstract
Guanine-rich sequences of DNA are able to create tetrastranded structures known as G-quadruplexes; they are formed by the stacking of planar G-quartets composed of four guanines paired by Hoogsteen hydrogen bonding. G-quadruplexes act as ligands for metal ions and aptamers for various molecules. Interestingly, the G-quadruplexes form a complex with anionic porphyrin hemin and exhibit peroxidase-like activity. This review focuses on overview of sensing techniques based on G-quadruplex complexes with anionic porphyrins for detection of various analytes, including metal ions such as K+, Ca2+, Ag+, Hg2+, Cu2+, Pb2+, Sr2+, organic molecules, nucleic acids, and proteins. Principles of G-quadruplex-based detection methods involve DNA conformational change caused by the presence of analyte which leads to a decrease or an increase in peroxidase activity, fluorescence, or electrochemical signal of the used probe. The advantages of various detection techniques are also discussed.
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