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Jiang L, Zheng T, Xu Z, Li J, Li H, Tang J, Liu S, Wang Y. New NIR spectroscopic probe with a large Stokes shift for Hg 2+ and Ag + detection and living cells imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120916. [PMID: 35085998 DOI: 10.1016/j.saa.2022.120916] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
A new near-infrared (NIR) probe based on a coumarinyl ligand (CL) was designed and synthesized. The probe CL can be used for simultaneous fluorescent turn-on and colorimetric detection of Hg2+ and Ag+ in ethanol/water medium. Colorless solution of probe CL changed to light yellow or dark yellow after addition of Hg2+ or Ag+ ions. Meanwhile the maximum absorption band shifted from 379 nm to 404 nm and the intensity increased enormously (for Hg2+) or moderately (for Ag+). Probe CL displayed an extraordinarily large Stokes shift of 316 nm and addition of Hg2+ or Ag+ to probe CL induced enhancement in the intensity of fluorescence emission at 695 nm by 15 or 8 fold. The detection limit of CL for Hg2+ and Ag+ ions is 0.83 and 8.8 μM, respectively. The applicable pH for sensing Hg2+ by probe CL is in a broad range of 2-12. Application of probe CL for in vitro U87MG cell imaging to detect Hg2+ ions was confirmed.
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Affiliation(s)
- Lin Jiang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Tao Zheng
- Department of Health Technology, Technical University of Denmark, Kgs. Lyngby 2800, Denmark.
| | - Zhenxiang Xu
- Penglai Xinguang Pigment Chemical Co, Ltd, Penglai 265601, China
| | - Jiayin Li
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Hongqi Li
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China.
| | - Junjie Tang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Shicheng Liu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Yiyang Wang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
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Wang K, Dong E, Fang M, Chen T, Zhu W, Li C. Construction of ratio fluorescence sensor based on CdTe quantum dots and benzocoumarin-3-carboxylic acid for Hg2+ detection. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhou Z, Ding Y, Si S, Wu W, Deng C, Wu H, Xiang J. Wide-field determination of aqueous mercury(II) based on tail-extensible DNA fluorescent probe with tunable dynamic range. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:125975. [PMID: 33992009 DOI: 10.1016/j.jhazmat.2021.125975] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 04/16/2021] [Accepted: 04/22/2021] [Indexed: 06/12/2023]
Abstract
Mercury (Hg) is one of the most hazardous pollutants, widely distributed in water, atmosphere, and soil, while the Hg contents from different sources are greatly different. Until now, numerous reported methods are only suitable for a kind of sample because they cannot reconcile sensitivity and linear range. In this work, a tail-extensible DNA fluorescent probe for "turn on" detection of Hg2+ with tunable dynamic range and high sensitivity was developed, which was based on segmental hybridization between silver nanoclusters (AgNCs)-covered DNA and different guanine-rich DNAs. By adding adenine-guanine-cytosine (AGC) base repeats as a tail of the guanine-rich DNA, the formation constant of T-Hg2+-T complex was effectively modulated within two orders of magnitude. Based on it, a tunable dynamic range from 0.035 to 0.2 pM to 8.0-120.0 pM was achieved by combining four fluorescent probes with different tail lengths. The Hg2+contents from different sources were successfully measured. This evidenced the proposed sensor's application toward wide-field detection, which is useful for the direct and objective comparison of results from different sources, and therefore providing a way for solving the shortcomings of reported methods for Hg2+ detection. Additionally,this present method is simple, cost-effective and time-saving, ultrasensitive and highly selective, which is favorable for expanding its applications and subsequent mercury pollution control.
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Affiliation(s)
- Zhuo Zhou
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Yalin Ding
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Shihui Si
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Wuming Wu
- Academy of Hi-Tech Research,Hunan Institute of Traffic Engineering, Changsha 421001, PR China
| | - Chunyan Deng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China.
| | - Huiyun Wu
- Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, PR China.
| | - Juan Xiang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China.
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Tian C, Zhao L, Zhu J, Zhang S. Ultrasensitive detection of trace Hg 2+ by SERS aptasensor based on dual recycling amplification in water environment. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126251. [PMID: 34492994 DOI: 10.1016/j.jhazmat.2021.126251] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/18/2021] [Accepted: 05/25/2021] [Indexed: 05/07/2023]
Abstract
Due to the nonbiodegradability and accumulation of mercury ion, even in extremely small amount, it will cause varying degrees of harm to environment and human health. Although researchers have developed many strategies to detect and monitor trace Hg2+, only a few provide sensitivities of less than 1.0 pM. Surface Enhanced Raman Spectroscopy (SERS) is a common method to detect mercury ion due to its high sensitivity, rapid detection and easy operation. In this work, we report a new SERS aptasensor based on dual recycling amplification for the detection of trace mercury ion, which combines SERS with nucleic acid signal amplification through functional aptamer and elaborately designed hairpin DNA. Under the optimal experimental conditions, this SERS aptasensor exhibits excellent selectivity and high sensitivity. A linear range (0.2-125 fM) and a low detection limit (0.11 fM) are obtained. By using specific aptamers, the strategy will provide a new idea for the trace detection of toxic contaminants in water environment.
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Affiliation(s)
- Cheng Tian
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, P. R. China
| | - Lei Zhao
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, P. R. China
| | - Jin Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, P. R. China.
| | - Shusheng Zhang
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, P. R. China.
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Funai T, Tagawa C, Nakagawa O, Wada SI, Ono A, Urata H. Enzymatic formation of consecutive thymine–HgII–thymine base pairs by DNA polymerases. Chem Commun (Camb) 2020; 56:12025-12028. [DOI: 10.1039/d0cc04423g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ten consecutive T–HgII–T base pairs were successfully formed by DNA polymerase-catalyzed primer extension reactions.
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Affiliation(s)
- Tatsuya Funai
- Department of Bioorganic Chemistry
- Osaka University of Pharmaceutical Sciences
- 4-20-1 Nasahara
- Takatsuki
- Japan
| | - Chizuko Tagawa
- Department of Bioorganic Chemistry
- Osaka University of Pharmaceutical Sciences
- 4-20-1 Nasahara
- Takatsuki
- Japan
| | - Osamu Nakagawa
- Department of Bioorganic Chemistry
- Osaka University of Pharmaceutical Sciences
- 4-20-1 Nasahara
- Takatsuki
- Japan
| | - Shun-ichi Wada
- Department of Bioorganic Chemistry
- Osaka University of Pharmaceutical Sciences
- 4-20-1 Nasahara
- Takatsuki
- Japan
| | - Akira Ono
- Department of Material & Life Chemistry
- Faculty of Engineering, Kanagawa University
- 3-27-1 Rokkakubashi
- Kanagawa-ku
- Japan
| | - Hidehito Urata
- Department of Bioorganic Chemistry
- Osaka University of Pharmaceutical Sciences
- 4-20-1 Nasahara
- Takatsuki
- Japan
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Yao Y, Liu Y, Zhang H, Wang X. A highly sensitive and low-background fluorescence assay for pesticides residues based on hybridization chain reaction amplification assisted by magnetic separation. Methods Appl Fluoresc 2019; 7:035006. [PMID: 31042679 DOI: 10.1088/2050-6120/ab1e7a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Due to the concern over food safety, it is important to detect the pesticides residues in agricultural products. Here, a highly sensitive and low background fluorescent strategy for the detection of pesticides residues has been developed. The fluorescence intensity of N-methyl mesoporphyrin IX (NMM) binding G-quadruplex could be turn off because of inhibiting effect of the pesticides on the acetylcholinesterase (AChE) activity. For that, four single-stranded DNAs (named linker, trigger, H1 and H2, respectively) are rational designed and T-Hg-T mismatches duplex DNAs as a recognizer combined with the separation of magnetic beads. The design of hybridization chain reaction (HCR) amplification strategy assisted by magnetic separation has been adopted to improve the detection sensitivity. In the presence of pesticides, the amount of the thiol group generated by hydrolysis reaction of acetylcholine (ACh) is reduced, lead to release of less trigger DNA. Therefor subsequent HCR process is retarded with decreased fluorescence intensity. The reduced fluorescence intensity has a quantitative relationship with the pesticide concentration. The limit of detection of chlorpyrifos was estimated to be 2.0 ng ml-1. It has been applied to detect the pesticides residues in real samples.
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Affiliation(s)
- Yueyue Yao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People's Republic of China
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Chen B, Chai S, Liu J, Liu C, Li Y, He J, Yu Z, Yang T, Feng C, Huang C. 2,4,6-Trinitrophenol detection by a new portable sensing gadget using carbon dots as a fluorescent probe. Anal Bioanal Chem 2019; 411:2291-2300. [DOI: 10.1007/s00216-019-01670-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/23/2019] [Accepted: 02/05/2019] [Indexed: 11/28/2022]
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Zhang X, Wang Y, Yuan H, Guo X, Dai B, Jia X. An acid-fluorescence and alkali-colorimetric dual channels sensor for Hg2+ selective detection by different coordination manners in aqueous media. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.12.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhang C, Kong C, Liu Q, Chen Z. Ultrasensitive colorimetric detection of Hg2+ ions based on enhanced catalytic performance of gold amalgam dispersed in channels of rose petals. Analyst 2019; 144:1205-1209. [DOI: 10.1039/c8an02075b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein present a simple, low-cost, and ultrasensitive colorimetric sensing strategy for the detection of mercury ions (Hg2+) that takes advantage of the natural pore structure in rose petals to encapsulate gold nanoparticles (AuNPs).
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Affiliation(s)
- Chi Zhang
- Department of Chemistry
- Capital Normal University
- Beijing
- P. R. China
| | - Caiyun Kong
- Department of Chemistry
- Capital Normal University
- Beijing
- P. R. China
| | - Qingyun Liu
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao
- P. R. China
| | - Zhengbo Chen
- Department of Chemistry
- Capital Normal University
- Beijing
- P. R. China
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He JH, Cheng YY, Yang T, Zou HY, Huang CZ. Functional preserving carbon dots-based fluorescent probe for mercury (II) ions sensing in herbal medicines via coordination and electron transfer. Anal Chim Acta 2018; 1035:203-210. [DOI: 10.1016/j.aca.2018.06.053] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 10/28/2022]
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Chen B, Liu J, Yang T, Chen L, Hou J, Feng C, Huang CZ. Development of a portable device for Ag + sensing using CdTe QDs as fluorescence probe via an electron transfer process. Talanta 2018; 191:357-363. [PMID: 30262071 DOI: 10.1016/j.talanta.2018.08.088] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/25/2018] [Accepted: 08/31/2018] [Indexed: 02/03/2023]
Abstract
Ag+ as one of the most commonly seen toxic heavy metal ions is involved in numerous vital biological processes, which would cause fatal damages and environmental contamination when Ag+ is excessive. In the present work, CdTe quantum dots (QDs) with green, orange, and red emission capped by mercaptoacetic acid (TGA) were synthesized at one time by controlling the synthesis time and utilized for Ag+ detection. Both fluorescence spectral red-shift and intensity decrease could be used for Ag+ discrimination. Fluorescence lifetime, Zeta potential, and XRD, etc. were carried out to analyze the detection mechanism. Results displayed that surface passivation and electron transfer due to binding effects of Ag+ to Te atom on traps of QDs could be relied on to explain the sensing mechanism. Additionally, in accordance with PCA analysis, Ag+ could be also be successfully differentiated from Hg2+ and the other metal ions. Importantly, a home-made portable device based on a 32 bit embed Micro Control Unit (MCU) system was first proposed for Ag+ detection. The power supply system adopt the mini-sized lithium cell instead of the power supply system, which ensure its practical applicability. The relative position of light source and detector is set at 90° to minimize the interference. According to the detection results, the linear detection range using the device was from 5 nM to 200 nM (with a larger coefficient of determination, R2), and the detection limit was calculated to be about 5 nM, which indicated that this proposed method and device could fulfil the practical application requirements.
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Affiliation(s)
- Bin Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information Processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Junjie Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Tong Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Lin Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Jia Hou
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Changhao Feng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information Processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China.
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Ravikumar A, Panneerselvam P, Morad N. Metal-Polydopamine Framework as an Effective Fluorescent Quencher for Highly Sensitive Detection of Hg(II) and Ag(I) Ions through Exonuclease III Activity. ACS APPLIED MATERIALS & INTERFACES 2018; 10:20550-20558. [PMID: 29792319 DOI: 10.1021/acsami.8b05041] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In this paper, we propose a metal-polydopamine (MPDA) framework with a specific molecular probe which appears to be the most promising approach to a strong fluorescence quencher. The MPDA framework quenching ability toward various organic fluorophore such as aminoethylcoumarin acetate, 6-carboxyfluorescein (FAM), carboxyteramethylrhodamine, and Cy5 are used to establish a fluorescent biosensor that can selectively recognize Hg2+ and Ag+ ions. The fluorescent quenching efficiency was sufficient to achieve more than 96%. The MPDA framework also exhibits different affinities with ssDNA and dsDNA. In addition, the FAM-labeled ssDNA was adsorbed onto the MPDA framework, based on their interaction with the complex formed between MPDA frameworks/ssDNA taken as a sensing platform. By taking advantage of this sensor, highly sensitive and selective determination of Hg2+ and Ag+ ions is achieved through exonuclease III signal amplification activity. The detection limits of Hg2+ and Ag+ achieved to be 1.3 and 34 pM, respectively, were compared to co-existing metal ions and graphene oxide-based sensors. Furthermore, the potential applications of this study establish the highly sensitive fluorescence detection targets in environmental and biological fields.
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Affiliation(s)
- Ayyanu Ravikumar
- Department of Chemistry , SRM Institute of Science and Technology , Kattankulathur 603 203 , Tamil Nadu , India
| | - Perumal Panneerselvam
- Department of Chemistry , SRM Institute of Science and Technology , Kattankulathur 603 203 , Tamil Nadu , India
| | - Norhashimah Morad
- Environmental Technology Division, School of Industrial Technology , University Sains Malaysia , 11800 Minden , Penang , Malaysia
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Xu H, Jiang Y, Liu D, Liu K, Zhang Y, Yu S, Shen Z, Wu ZS. Twin target self-amplification-based DNA machine for highly sensitive detection of cancer-related gene. Anal Chim Acta 2018; 1011:86-93. [DOI: 10.1016/j.aca.2018.01.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/05/2018] [Accepted: 01/06/2018] [Indexed: 01/08/2023]
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Wang H, Liu Y, Liu G. Label-Free Biosensor Using a Silver Specific RNA-Cleaving DNAzyme Functionalized Single-Walled Carbon Nanotube for Silver Ion Determination. NANOMATERIALS 2018; 8:nano8040258. [PMID: 29677143 PMCID: PMC5923588 DOI: 10.3390/nano8040258] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 11/16/2022]
Abstract
Silver, a very common heavy metal, has been employed in electronics, medicine, jewelry, and catalysis due to its excellent chemical and physical characteristics. Silver-containing wastes can cause environmental pollution, so it is vital to monitor the Ag(I) concentration. Here, a label-free biosensor was developed for the Ag(I) detection, which used single-walled carbon nanotubes/field effect transistor (SWNTs/FET) to functionalize with a specific DNAzyme, containing an Agzyme and a complementary strand DNA (CS-DNA) embedded an RNA-base. The CS-DNA was covalently immobilized on the SWNTs’ surface through peptide bonds, and then combined with the Agzyme. When Ag(I) was bound with the Agzyme, the CS-DNA can be cleaved at the RNA site efficiently. The cleaved DNAzyme induced a remarkable change in the electrical conductivity of SWNTs. The performances of DNAzyme/SWNTs/FET were investigated using different spectroscopy and electrochemical methods. Under the optimized parameters, DNAzyme/SWNTs/FET presented a high sensitivity and selectivity towards Ag(I), in which the linear response range is 10 pM to 106 pM and the limit of detection is 5 pM(S/N = 3). Additionally, the prepared biosensor was applied to measure the Ag(I) concentration in the water sample with good results.
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Affiliation(s)
- Hui Wang
- Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education and Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture China Agricultural University, Beijing 100083, China.
| | - Yang Liu
- School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Gang Liu
- Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education and Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture China Agricultural University, Beijing 100083, China.
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Kolanowski JL, Liu F, New EJ. Fluorescent probes for the simultaneous detection of multiple analytes in biology. Chem Soc Rev 2018; 47:195-208. [DOI: 10.1039/c7cs00528h] [Citation(s) in RCA: 215] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review identifies and discusses fluorescent sensors that are capable of simultaneously reporting on the presence of two analytes for biological application.
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Affiliation(s)
- Jacek L. Kolanowski
- School of Chemistry
- The University of Sydney
- Australia
- Institute of Bio-organic Chemistry
- Polish Academy of Sciences
| | - Fei Liu
- State Key Laboratory of Applied Microbiology Southern China
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application
- Guangdong Institute of Microbiology
- Guangdong
- People's Republic of China
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17
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Qi L, Xiao M, Wang F, Wang L, Ji W, Man T, Aldalbahi A, Naziruddin Khan M, Periyasami G, Rahaman M, Alrohaili A, Qu X, Pei H, Wang C, Li L. Poly-cytosine-mediated nanotags for SERS detection of Hg 2. NANOSCALE 2017; 9:14184-14191. [PMID: 28905956 DOI: 10.1039/c7nr05165d] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Highly sensitive and selective detection of heavy metal ions, such as Hg2+, is of great importance because the contamination of heavy metal ions has been a serious threat to human health. Herein, we have developed poly-cytosine (polyC)-mediated surface-enhanced Raman scattering (SERS) nanotags as a sensor system for rapid, selective, and sensitive detection of Hg2+ based on thymidine-Hg2+-thymidine (T-Hg2+-T) coordination and polyC-mediated Raman activity. The SERS nanotags exploit the mismatched T-T base pairs to capture Hg2+ form T-Hg2+-T bridges, which induce the aggregation of nanotags giving rise to the drastic amplification in the SERS signals. Moreover, this polyC not only provides the anchoring function to induce the formation of intrinsic silver-cytosine coordination but also engineers the Raman-activity of SERS nanotags by mediating its length. As a result, the polyC-mediated SERS nanotags show an excellent response for Hg2+ in the concentration range from 0.1 to 1000 nM and good selectivity over other metal ions. Given its simple principle and easy operation, the polyC-mediated SERS nanotags, therefore, could serve as a promising sensor for practical use.
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Affiliation(s)
- Lin Qi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China.
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18
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Zhang Y, Xiang D, Tang B, Zhang CY. Sensitive Detection of Transcription Factor in Nuclear Extracts by Target-Actuated Isothermal Amplification-Mediated Fluorescence Enhancement. Anal Chem 2017; 89:10439-10445. [DOI: 10.1021/acs.analchem.7b02451] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yan Zhang
- 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, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Dongxue Xiang
- 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, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Bo Tang
- 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, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Chun-yang Zhang
- 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, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
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19
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Affiliation(s)
- Wenhu Zhou
- Xiangya
School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Runjhun Saran
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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20
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Liu S, Leng X, Wang X, Pei Q, Cui X, Wang Y, Huang J. Enzyme-free colorimetric assay for mercury(II) using DNA conjugated to gold nanoparticles and strand displacement amplification. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2182-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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21
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Chen J, Pan J, Chen S. A naked-eye colorimetric sensor for Hg2+ monitoring with cascade signal amplification based on target-induced conjunction of split DNAzyme fragments. Chem Commun (Camb) 2017; 53:10224-10227. [DOI: 10.1039/c7cc05445a] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We developed a naked-eye colorimetric sensor for Hg2+ monitoring with cascade signal amplification based on DNAzyme fragments and gold nanoparticles.
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Affiliation(s)
- Junhua Chen
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management
- Guangdong Institute of Eco-environmental Science & Technology
- Guangzhou 510650
- China
| | - Jiafeng Pan
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management
- Guangdong Institute of Eco-environmental Science & Technology
- Guangzhou 510650
- China
| | - Shu Chen
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management
- Guangdong Institute of Eco-environmental Science & Technology
- Guangzhou 510650
- China
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22
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Lee CY, Kim HY, Ahn JK, Park KS, Park HG. Rapid and label-free strategy for the sensitive detection of Hg2+ based on target-triggered exponential strand displacement amplification. RSC Adv 2017. [DOI: 10.1039/c7ra09226a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A rapid and label-free strategy for sensitive detection of Hg2+ is developed based on target-triggered exponential strand displacement amplification (eSDA).
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Affiliation(s)
- Chang Yeol Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ Program)
- KAIST
- Daejeon 305-338
- Republic of Korea
| | - Hyo Yong Kim
- Department of Chemical and Biomolecular Engineering (BK 21+ Program)
- KAIST
- Daejeon 305-338
- Republic of Korea
| | - Jun Ki Ahn
- Department of Chemical and Biomolecular Engineering (BK 21+ Program)
- KAIST
- Daejeon 305-338
- Republic of Korea
| | - Ki Soo Park
- Department of Biological Engineering
- College of Engineering
- Konkuk University
- Seoul 05029
- Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK 21+ Program)
- KAIST
- Daejeon 305-338
- Republic of Korea
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23
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Selective and Sensitive Colorimetric Detection of Hg2+ at Wide pH Range Using Green Synthesized Silver Nanoparticles as Probe. J CLUST SCI 2016. [DOI: 10.1007/s10876-016-1109-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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A dual-color fluorescent biosensing platform based on WS2 nanosheet for detection of Hg2+ and Ag+. Biosens Bioelectron 2016; 85:464-470. [DOI: 10.1016/j.bios.2016.05.044] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/04/2016] [Accepted: 05/13/2016] [Indexed: 11/22/2022]
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25
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Huang H, Zhu W, Gao X, Liu X, Ma H. Synthesis of a novel electrode material containing phytic acid-polyaniline nanofibers for simultaneous determination of cadmium and lead ions. Anal Chim Acta 2016; 947:32-41. [PMID: 27846987 DOI: 10.1016/j.aca.2016.10.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 10/04/2016] [Accepted: 10/05/2016] [Indexed: 11/17/2022]
Abstract
The development of nanostructured conducting polymers based materials for electrochemical applications has attracted intense attention due to their environmental stability, unique reversible redox properties, abundant electron active sites, rapid electron transfer and tunable conductivity. Here, a phytic acid doped polyaniline nanofibers based nanocomposite was synthesized using a simple and green method, the properties of the resulting nanomaterial was characterized by electrochemical impedance spectroscopy (EIS), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). A glassy carbon electrode modified by the nanocomposite was evaluated as a new platform for the simultaneous detection of trace amounts of Cd2+ and Pb2+ using differential pulse anodic stripping voltammetry (DPASV). The synergistic contribution from PANI nanofibers and phytic acid enhances the accumulation efficiency and the charge transfer rate of metal ions during the DPASV analysis. Under the optimal conditions, good linear relationships were obtained for Cd2+ in a range of 0.05-60 μg L-1, with the detection limit (S/N = 3) of 0.02 μg L-1, and for Pb2+ in a range of 0.1-60 μg L-1, with the detection limit (S/N = 3) of 0.05 μg L-1. The new electrode was successfully applied to real water samples for simultaneous detection of Cd2+ and Pb2+ with good recovery rates. Therefore, the new electrode material may be a capable candidate for the detection of trace levels of heavy metal ions.
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Affiliation(s)
- Hui Huang
- Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Wencai Zhu
- Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Xiaochun Gao
- Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Xiuyu Liu
- Shandong Academy of Sciences, Jinan, 250114, China
| | - Houyi Ma
- Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
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26
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Cheng N, Zhu P, Xu Y, Huang K, Luo Y, Yang Z, Xu W. High-sensitivity assay for Hg (II) and Ag (I) ion detection: A new class of droplet digital PCR logic gates for an intelligent DNA calculator. Biosens Bioelectron 2016; 84:1-6. [DOI: 10.1016/j.bios.2016.04.084] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/13/2016] [Accepted: 04/26/2016] [Indexed: 12/21/2022]
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27
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Recent Progresses in Nanobiosensing for Food Safety Analysis. SENSORS 2016; 16:s16071118. [PMID: 27447636 PMCID: PMC4970161 DOI: 10.3390/s16071118] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/12/2016] [Accepted: 07/14/2016] [Indexed: 12/21/2022]
Abstract
With increasing adulteration, food safety analysis has become an important research field. Nanomaterials-based biosensing holds great potential in designing highly sensitive and selective detection strategies necessary for food safety analysis. This review summarizes various function types of nanomaterials, the methods of functionalization of nanomaterials, and recent (2014-present) progress in the design and development of nanobiosensing for the detection of food contaminants including pathogens, toxins, pesticides, antibiotics, metal contaminants, and other analytes, which are sub-classified according to various recognition methods of each analyte. The existing shortcomings and future perspectives of the rapidly growing field of nanobiosensing addressing food safety issues are also discussed briefly.
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28
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Wang X, Hou T, Dong S, Liu X, Li F. Fluorescence biosensing strategy based on mercury ion-mediated DNA conformational switch and nicking enzyme-assisted cycling amplification for highly sensitive detection of carbamate pesticide. Biosens Bioelectron 2016; 77:644-9. [DOI: 10.1016/j.bios.2015.10.034] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 09/29/2015] [Accepted: 10/11/2015] [Indexed: 11/16/2022]
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29
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Bao T, Wen W, Shu L, Zhang X, Wang S. Label-free and dual-amplified electrochemical detection of Hg2+ based on self-assembled DNA nanostructures and target-triggered exonuclease cleavage activity. NEW J CHEM 2016. [DOI: 10.1039/c6nj00265j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An electrochemical biosensor for Hg2+ detection via HCR and Hg2+-triggered Exo III-assisted target recycling for signal amplification.
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Affiliation(s)
- Ting Bao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- P. R. China
| | - Wei Wen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- P. R. China
| | - Lei Shu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- P. R. China
| | - Xiuhua Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- P. R. China
| | - Shengfu Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- P. R. China
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30
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Liu H, Zhang L, Li M, Yan M, Xue M, Zhang Y, Su M, Yu J, Ge S. Electrochemiluminescent molecular logic gates based on MCNTs for the multiplexed analysis of mercury(ii) and silver(i) ions. RSC Adv 2016. [DOI: 10.1039/c6ra02531e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, logic gates with electrochemiluminescence (ECL) signal as outputs were constructed based on the use of the thymine (T)-rich (S1) or cytosine (C)-rich (S2) oligonucleotides for the selective analysis of mercury ions (Hg2+) or silver ions (Ag+).
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Affiliation(s)
- Haiyun Liu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- P. R. China
| | - Meng Li
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Mei Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Mei Xue
- College of Chemistry
- Chemical Engineering and Materials Science
- Shandong Normal University
- Jinan
- P. R. China
| | - Yan Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Min Su
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Jinghua Yu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Shenguang Ge
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
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31
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Zhao Y, Liu H, Chen F, Bai M, Zhao Y. Fidelity quantification of mercury( ii) ion via circumventing biothiols-induced sequestration in enzymatic amplification system. RSC Adv 2016. [DOI: 10.1039/c6ra16960k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A fidelity quantification of mercury(ii) ion based on nucleic acids amplification is developedviacircumventing biothiols-induced sequestration.
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Affiliation(s)
- Yue Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Huaqing Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Feng Chen
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Min Bai
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Yongxi Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education
- School of Life Science and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
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32
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Ghorai A, Mondal J, Chowdhury S, Patra GK. Solvent-dependent fluorescent-colorimetric probe for dual monitoring of Al3+ and Cu2+ in aqueous solution: an application to bio-imaging. Dalton Trans 2016; 45:11540-53. [DOI: 10.1039/c6dt01795a] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A solvent-dependent reversible fluorescent-colorimetric bis-iminopyridyl Schiff base receptor (N1E,N4E)-N1,N4-bis(quinolin-4-ylmethylene)benzene-1,4-diamine (L) has been developed for the first time for sensitive and selective determination of Al3+ and Cu2+ in aqueous solution.
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Affiliation(s)
- Anupam Ghorai
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya
- Bilaspur
- India
| | - Jahangir Mondal
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya
- Bilaspur
- India
| | | | - Goutam K. Patra
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya
- Bilaspur
- India
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33
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Park KS, Lee CY, Park HG. Metal ion triggers for reversible switching of DNA polymerase. Chem Commun (Camb) 2016; 52:4868-71. [DOI: 10.1039/c6cc00454g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A new strategy to modulate DNA polymerase activity in a reversible and switchable manner was devised by using the novel interactions between DNA bases and metal ions.
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Affiliation(s)
- Ki Soo Park
- Department of Chemical and Biomolecular Engineering (BK 21+ program)
- KAIST
- Daejeon 305-338
- Republic of Korea
| | - Chang Yeol Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ program)
- KAIST
- Daejeon 305-338
- Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK 21+ program)
- KAIST
- Daejeon 305-338
- Republic of Korea
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34
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Wang W, Kang TS, Chan PWH, Lu JJ, Chen XP, Leung CH, Ma DL. A label-free G-quadruplex-based mercury detection assay employing the exonuclease III-mediated cleavage of T-Hg 2+-T mismatched DNA. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2015; 16:065004. [PMID: 27877846 PMCID: PMC5069990 DOI: 10.1088/1468-6996/16/6/065004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/03/2015] [Accepted: 11/04/2015] [Indexed: 05/30/2023]
Abstract
We report herein the use of an exonuclease III and G-quadruplex probe to construct a G-quadruplex-based luminescence detection platform for Hg2+. Unlike common DNA-based Hg2+ detection methods, when using the dsDNA probe to monitor the hairpin formation, the intercalation of the dsDNA probe may be influenced by the distortion of dsDNA. This 'mix-and-detect' methodology utilized the G-quadruplex probe as the signal transducer and is simple, rapid, convenient to use and can detect down to 20 nM of Hg2+.
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Affiliation(s)
- Wanhe Wang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Tian-Shu Kang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Philip Wai Hong Chan
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
| | - Jin-Jian Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Xiu-Ping Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
- Partner State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong, China
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35
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Highly selective and sensitive fluorescent chemosensor for femtomolar detection of silver ion in aqueous medium. SENSING AND BIO-SENSING RESEARCH 2015. [DOI: 10.1016/j.sbsr.2015.10.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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36
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Abstract
Isothermal amplification of nucleic acids is a simple process that rapidly and efficiently accumulates nucleic acid sequences at constant temperature. Since the early 1990s, various isothermal amplification techniques have been developed as alternatives to polymerase chain reaction (PCR). These isothermal amplification methods have been used for biosensing targets such as DNA, RNA, cells, proteins, small molecules, and ions. The applications of these techniques for in situ or intracellular bioimaging and sequencing have been amply demonstrated. Amplicons produced by isothermal amplification methods have also been utilized to construct versatile nucleic acid nanomaterials for promising applications in biomedicine, bioimaging, and biosensing. The integration of isothermal amplification into microsystems or portable devices improves nucleic acid-based on-site assays and confers high sensitivity. Single-cell and single-molecule analyses have also been implemented based on integrated microfluidic systems. In this review, we provide a comprehensive overview of the isothermal amplification of nucleic acids encompassing work published in the past two decades. First, different isothermal amplification techniques are classified into three types based on reaction kinetics. Then, we summarize the applications of isothermal amplification in bioanalysis, diagnostics, nanotechnology, materials science, and device integration. Finally, several challenges and perspectives in the field are discussed.
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Affiliation(s)
- Yongxi Zhao
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University , Xianning West Road, Xi'an, Shaanxi 710049, China
| | - Feng Chen
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University , Xianning West Road, Xi'an, Shaanxi 710049, China
| | - Qian Li
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Lihua Wang
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Chunhai Fan
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China.,School of Life Science & Technology, ShanghaiTech University , Shanghai 200031, China
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37
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Yuan YH, Li RS, Wang Q, Wu ZL, Wang J, Liu H, Huang CZ. Germanium-doped carbon dots as a new type of fluorescent probe for visualizing the dynamic invasions of mercury(II) ions into cancer cells. NANOSCALE 2015; 7:16841-7. [PMID: 26403476 DOI: 10.1039/c5nr05326a] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Carbon dots doped with germanium (GeCDs) were firstly prepared by a new simple 15 min carbonation synthesis route, exhibiting excitation-independent photoluminescence (PL), which could avoid autofluorescence in bioimaging applications. The as-prepared GeCDs have low cell toxicity, good biocompatibility, high intracellular delivery efficiency, stability and could be applied for detection of mercury(II) ions with excellent selectivity in complicated medium. It is to be noted that the as-prepared GeCDs used as a new type of probe for visualization of dynamic invasions of mercury(II) ions into Hep-2 cells display greatly different properties from most of the previously reported CDs which are regularly responsive to iron ions. All the results suggest that the GeCDs can be employed for visualization and monitoring of the significant physiological changes of living cells induced by Hg(2+).
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Affiliation(s)
- Yun Huan Yuan
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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38
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Jung J, Eom MS, Baek K, Lee WS, Chang SK, Han MS. Sensitive fluorescence chemosensor for detection of thymidine nucleotides using Hg2+-benzo[g]quinazoline-2,4-(1H,3H)-dione complex. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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39
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Lable-free quadruple signal amplification strategy for sensitive electrochemical p53 gene biosensing. Biosens Bioelectron 2015; 77:157-63. [PMID: 26406456 DOI: 10.1016/j.bios.2015.09.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/22/2015] [Accepted: 09/04/2015] [Indexed: 11/21/2022]
Abstract
A versatile label-free quadruple signal amplification biosensing platform for p53 gene (target DNA) detection was proposed. The chitosan-graphene (CS-GR) modified electrode with excellent electron transfer ability could provide a large specific surface for high levels of AuNPs-DNA attachment. The large amount of AuNPs could immobilize more capture probes and enhance the electrochemical signal with the excellent electrocatalytic activity. Furthermore, with the assist of N.BstNB I (the nicking endonuclease), target DNA could be reused and more G-quadruplex-hemin DNAzyme could be formed, allowing significant signal amplification in the presence of H2O2. Such strategy can enhance the oxidation-reduction reaction of adsorbed methylene blue (MB) and efficiently improve the sensitivity of the proposed biosensor. The morphologies of materials and the stepwise biosensor were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and cyclic voltammetry (CV). Differential pulse voltammetry (DPV) signals of MB provided quantitative measures of the concentrations of target DNA, with a linear calibration range of 1.0 × 10(-15)-1.0 × 10(-9)M and a detection limit of 3.0 × 10(-16)M. Moreover, the resulting biosensor also exhibited good specificity, acceptable reproducibility and stability, indicating that the present strategy was promising for broad potential application in clinic assay.
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40
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Zhu G, Zhang CY. Functional nucleic acid-based sensors for heavy metal ion assays. Analyst 2015; 139:6326-42. [PMID: 25356810 DOI: 10.1039/c4an01069h] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Heavy metal contaminants such as lead ions (Pb(2+)), mercury ions (Hg(2+)) and silver ions (Ag(+)) can cause significant harm to humans and generate enduring bioaccumulation in ecological systems. Even though a variety of methods have been developed for Pb(2+), Hg(2+) and Ag(+) assays, most of them are usually laborious and time-consuming with poor sensitivity. Due to their unique advantages of excellent catalytic properties and high affinity for heavy metal ions, functional nucleic acids such as DNAzymes and aptamers show great promise in the development of novel sensors for heavy metal ion assays. In this review, we summarize the development of functional nucleic acid-based sensors for the detection of Pb(2+), Hg(2+) and Ag(+), and especially focus on two categories including the direct assay and the amplification-based assay. We highlight the emerging trends in the development of sensitive and selective sensors for heavy metal ion assays as well.
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Affiliation(s)
- Guichi Zhu
- Single-Molecule Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Guangdong 518055, China.
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41
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Li S, Xu L, Ma W, Kuang H, Wang L, Xu C. Triple Raman Label-Encoded Gold Nanoparticle Trimers for Simultaneous Heavy Metal Ion Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:3435-9. [PMID: 25846815 DOI: 10.1002/smll.201403356] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 03/08/2015] [Indexed: 05/28/2023]
Abstract
Here, a triple Raman label-encoded gold nanoparticle (AuNP) trimer is fabricated for heavy metal ion detection. In the presence of target ions, the gold nanoparticles modified with different Raman labels are assembled into trimers and produce different enhancements of Raman reporters, which are functionalized as Raman probes for simultaneous silver and mercury ion detection. Under optimized conditions, the limits of detection of Ag(+) and Hg(2+) reach 8.42 × 10(-12) and 16.78 × 10(-12) m, respectively.
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Affiliation(s)
- Si Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, 214122, P. R. China
| | - Liguang Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, 214122, P. R. China
| | - Wei Ma
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, 214122, P. R. China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, 214122, P. R. China
| | - Libing Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, 214122, P. R. China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, 214122, P. R. China
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42
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Lee J, Park J, Hee Lee H, Park H, Kim HI, Kim WJ. Fluorescence switch for silver ion detection utilizing dimerization of DNA-Ag nanoclusters. Biosens Bioelectron 2015; 68:642-647. [DOI: 10.1016/j.bios.2015.01.058] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/13/2015] [Accepted: 01/25/2015] [Indexed: 10/24/2022]
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43
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Zhang L, Wong JXH, Li X, Li Y, Yu HZ. Detection and Quantitation of Heavy Metal Ions on Bona Fide DVDs Using DNA Molecular Beacon Probes. Anal Chem 2015; 87:5062-7. [DOI: 10.1021/acs.analchem.5b00899] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lingling Zhang
- Key
Laboratory of Advanced Transducers and Intelligent Control Systems
(Ministry of Education and Shanxi Province), College of Physics and
Optoelectronic Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
- Department
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jessica X. H. Wong
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Xiaochun Li
- Key
Laboratory of Advanced Transducers and Intelligent Control Systems
(Ministry of Education and Shanxi Province), College of Physics and
Optoelectronic Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
| | - Yunchao Li
- Department
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hua-Zhong Yu
- Key
Laboratory of Advanced Transducers and Intelligent Control Systems
(Ministry of Education and Shanxi Province), College of Physics and
Optoelectronic Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
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44
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Pu S, Jia H, Fan C, Liu G, Fu Y, Jing S. Highly selective fluorescent chemosensors for the detection of Hg2+ based on photochromic diarylethenes with a terminal terpyridine unit. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.069] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Zhan S, Xu H, Zhang D, Xia B, Zhan X, Wang L, Lv J, Zhou P. Fluorescent detection of Hg2+ and Pb2+ using GeneFinder™ and an integrated functional nucleic acid. Biosens Bioelectron 2015; 72:95-9. [PMID: 25966463 DOI: 10.1016/j.bios.2015.04.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 04/03/2015] [Accepted: 04/10/2015] [Indexed: 12/25/2022]
Abstract
This paper reports a simple fluorescent assay for the determination of Hg(2+) and Pb(2+) by using a DNA intercalator GeneFinder™ (GF) and an integrated functional nucleic acid (FNA). In the absence of Hg(2+) and Pb(2+), GF intercalated with the FNA and released moderate strong fluorescence. While in the presence of Hg(2+) or Pb(2+), the FNA would be induced to form T-Hg(2+)-T or G-quadruplex structure, interacted with which the GF would exhibit extremely strong or very weak fluorescence. By monitoring the fluorescence changes upon addition of these two ions, the Hg(2+) and Pb(2+) could be selectively detected as low as 3.23 ppb and 2.62 ppb. As the main advantage of this assay is simplicity and the feasibility was demonstrated by detecting Hg(2+) and Pb(2+) in spiked water samples, this assay holds great potential for the development of a cost effective and useful tool for environmental monitoring.
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Affiliation(s)
- Shenshan Zhan
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Hanchu Xu
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Dongwei Zhang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Bing Xia
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Xuejia Zhan
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Lumei Wang
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Jing Lv
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Pei Zhou
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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46
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Yang Z, She M, Yin B, Hao L, Obst M, Liu P, Li J. Solvent-dependent turn-on probe for dual monitoring of Ag+ and Zn2+ in living biological samples. Anal Chim Acta 2015; 868:53-9. [DOI: 10.1016/j.aca.2015.01.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/29/2014] [Accepted: 01/14/2015] [Indexed: 11/29/2022]
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47
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Electrochemical detection of aqueous Ag+ based on Ag+-assisted ligation reaction. Sci Rep 2015; 5:9161. [PMID: 25779347 PMCID: PMC4361879 DOI: 10.1038/srep09161] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 02/18/2015] [Indexed: 12/25/2022] Open
Abstract
In this work, a novel strategy to fabricate a highly sensitive and selective biosensor for the detection of Ag(+) is proposed. Two DNA probes are designed and modified on a gold electrode surface by gold-sulfur chemistry and hybridization. In the presence of Ag(+), cytosine-Ag(+)-cytosine composite forms and facilitates the ligation event on the electrode surface, which can block the release of electrochemical signals labeled on one of the two DNA probes during denaturation process. Ag(+) can be sensitively detected with the detection limit of 0.1 nM, which is much lower than the toxicity level defined by U.S. Environmental Protection Agency. This biosensor can easily distinguish Ag(+) from other interfering ions and the performances in real water samples are also satisfactory. Moreover, the two DNA probes are designed to contain the recognition sequences of a nicking endonuclease, and the ligated DNA can thus be cleaved at the original site. Therefore, the electrode can be regenerated, which allows the biosensor to be reused for additional tests.
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48
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Shi X, Gao X, Zhang L, Li Y, Fan L, Yu HZ. Binary DNA hairpin-based colorimetric biochip for simultaneous detection of Pb2+ and Hg2+ in real-world samples. Analyst 2015; 140:2608-12. [DOI: 10.1039/c5an00120j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel microarray-format colorimetric biochip was constructed for simultaneously detecting the trace amounts of Pb2+ and Hg2+ in various real-world samples.
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Affiliation(s)
- Xiaoli Shi
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Xiaoyi Gao
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Lingling Zhang
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Yunchao Li
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Louzhen Fan
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Hua-Zhong Yu
- Department of Chemistry
- Simon Fraser University
- Burnaby
- Canada
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49
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Tanaka Y, Kondo J, Sychrovský V, Šebera J, Dairaku T, Saneyoshi H, Urata H, Torigoe H, Ono A. Structures, physicochemical properties, and applications of T–HgII–T, C–AgI–C, and other metallo-base-pairs. Chem Commun (Camb) 2015; 51:17343-60. [DOI: 10.1039/c5cc02693h] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this feature article, recent progress and future perspectives of metal-mediated base-pairs such as T–Hg(ii)–T and C–Ag(i)–C are presented.
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Affiliation(s)
- Yoshiyuki Tanaka
- Faculty of Pharmaceutical Sciences
- Tokushima Bunri University
- Tokushima
- Japan
- Graduate School of Pharmaceutical Sciences
| | - Jiro Kondo
- Department of Materials and Life Sciences
- Faculty of Science and Technology
- Sophia University
- Chiyoda-ku
- Japan
| | - Vladimír Sychrovský
- Institute of Organic Chemistry and Biochemistry
- Academy of Sciences of the Czech Republic
- Praha 6
- Czech Republic
| | - Jakub Šebera
- Institute of Organic Chemistry and Biochemistry
- Academy of Sciences of the Czech Republic
- Praha 6
- Czech Republic
- Institute of Physics
| | - Takenori Dairaku
- Graduate School of Pharmaceutical Sciences
- Tohoku University
- Sendai
- Japan
| | - Hisao Saneyoshi
- Department of Material & Life Chemistry
- Kanagawa University
- Yokohama
- Japan
| | - Hidehito Urata
- Osaka University of Pharmaceutical Sciences
- Takatsuki
- Japan
| | - Hidetaka Torigoe
- Department of Applied Chemistry
- Faculty of Science
- Tokyo University of Science
- Shinjuku-ku
- Japan
| | - Akira Ono
- Department of Material & Life Chemistry
- Kanagawa University
- Yokohama
- Japan
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50
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Xu H, Zhu X, Ye H, Yu L, Chen G, Chi Y, Liu X. A bio-inspired sensor coupled with a bio-bar code and hybridization chain reaction for Hg2+ assay. Chem Commun (Camb) 2015; 51:15031-4. [DOI: 10.1039/c5cc05369b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In this article, a bio-inspired DNA sensor is developed, which coupled with bio-bar code and hybridization chain reaction. This bio-inspired sensor has high sensitivity to Hg2+, and has been used to assay Hg2+ in the extraction of traditional Chinese medicine.
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Affiliation(s)
- Huifeng Xu
- Academy of Integrative Medicine
- Fujian University of Traditional Chinese Medicine
- Fuzhou
- P. R. China
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
| | - Xi Zhu
- College of Life Sciences
- Fujian Agriculture and Forestry University
- Fuzhou
- China
| | - Hongzhi Ye
- Academy of Integrative Medicine
- Fujian University of Traditional Chinese Medicine
- Fuzhou
- P. R. China
| | - Lishuang Yu
- Academy of Integrative Medicine
- Fujian University of Traditional Chinese Medicine
- Fuzhou
- P. R. China
| | - Guonan Chen
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Department of Chemistry
- Fuzhou University
- Fuzhou
| | - Yuwu Chi
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety
- Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety
- Department of Chemistry
- Fuzhou University
- Fuzhou
| | - Xianxiang Liu
- Academy of Integrative Medicine
- Fujian University of Traditional Chinese Medicine
- Fuzhou
- P. R. China
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