1
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Su X, Tian X, Sun Z, Zou X, Zhang W. Signal-on electrochemical aptasensor based on RGO-AuNPs and exonuclease-III with assistance of external probe for Hg2+ determination in shellfish. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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2
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Tong Y, Wu Y, Bai H, Li S, Jiang L, Zhou Q, Chen C. Highly efficient and simultaneous magnetic solid phase extraction of heavy metal ions from water samples with l-Cysteine modified magnetic polyamidoamine dendrimers prior to high performance liquid chromatography. CHEMOSPHERE 2023; 313:137340. [PMID: 36455659 DOI: 10.1016/j.chemosphere.2022.137340] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/17/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Due to the strong metal-sulfur interaction between mercapto groups and metal ions, which can be used to functionalize polyamidoamine dendrimer decorated Fe3O4 nanoparticles for high enrichment of trace heavy metal ions from waters. Based on this concept, polyamidoamine dendrimer modified Fe3O4 nanomaterials were functionalized with l-Cysteine and a new magnetic solid phase extraction for rapid adsorption and separation of Hg2+, Pb2+, Co2+ and Cd2+ from waters was established. The factors affecting extraction efficiency have been optimized. Upon the optimal parameters, the established method provided good linear ranges of 0.1-200 μg L-1 for Hg2+ and 0.05-200 μg L-1 for Pb2+, Co2+ and Cd2+, and high sensitivity with limits of detection (LOD) of 0.018 μg L-1, 0.014 μg L-1, 0.013 μg L-1 and 0.025 μg L-1 for Cd2+, Pb2+, Co2+ and Hg2+, respectively. Real water samples were utilized to validate the proposed method, and achieved results revealed that the proposed method was sensitive, effective, stable and suitable for monitoring Pb2+, Cd2+, Co2+and Hg2+ in environmental waters. This work provided a novel strategy for the simultaneous analysis of target cations in waters, and a new direction for developing decoration method of nanomaterials according to specific purpose.
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Affiliation(s)
- Yayan Tong
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Yalin Wu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China; Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing, 100037, China
| | - Huahua Bai
- Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing, 100037, China
| | - Shuangying Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Liushan Jiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Qingxiang Zhou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China.
| | - Chunmao Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
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3
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Wu L, Song Y, Xing S, Li Y, Xu H, Yang Q, Li Y. Advances in electrospun nanofibrous membrane sensors for ion detection. RSC Adv 2022; 12:34866-34891. [PMID: 36540220 PMCID: PMC9724217 DOI: 10.1039/d2ra04911b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 11/02/2022] [Indexed: 08/05/2024] Open
Abstract
Harmful metal ions and toxic anions produced in industrial processes cause serious damage to the environment and human health. Chemical sensors are used as an efficient and convenient detection method for harmful ions. Electrospun fiber membranes are widely used in the field of solid-state chemical sensors due to high specific surface area, high porosity, and strong adsorption. This paper reviews the solid-state chemical sensors based on electrospinning technology for the detection of harmful heavy metal ions and toxic anions in water over the past decade. These electrospun fiber sensors have different preparation methods, sensing mechanisms, and sensing properties. The preparation method can be completed by physical doping, chemical modification, copolymerization, surface adsorption and self-assembly combined with electrospinning, and the material can also be combined with organic fluorescent molecules, biological matrix materials and precious metal materials. Sensing performance aspects can also be manifested as changes in color and fluorescence. By comparing the literature, we summarize the advantages and disadvantages of electrospinning technology in the field of ion sensing, and discuss the opportunities and challenges of electrospun fiber sensor research. We hope that this review can provide inspiration for the development of electrospun fiber sensors.
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Affiliation(s)
- Liangqiang Wu
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Yan Song
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology Jilin 132022 P. R. China
| | - Shuo Xing
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Yapeng Li
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Hai Xu
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Qingbiao Yang
- College of Chemistry, Jilin University Changchun 130021 P. R China
| | - Yaoxian Li
- College of Chemistry, Jilin University Changchun 130021 P. R China
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4
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Jayeoye TJ, Sirimahachai U, Wattanasin P, Rujiralai T. Eco-friendly poly(aniline boronic acid)/gum tragacanth stabilized silver nanoparticles nanocomposite for selective sensing of Hg2+. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Singh Rana V, Anand V, Shekhar Sarkar S, Sandhu N, Verma M, Naidu S, Kumar K, Yadav RK, Shrivastava R, Singh AP. A novel pyrene-based Aggregation Induced Enhanced Emission active Schiff base fluorophore as a selective “turn-on” sensor for Sn2+ ions and its application in lung adenocarcinoma cells. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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6
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Lv Z, Zhang M, Jin H, Huang Y, Wei M. Screen‐printed electrode‐based homogeneous electrochemical aptasensor for mercury (
II
) based on reduced graphene oxide and exonuclease
III
‐driven cyclic reaction. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zeping Lv
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control Henan University of Technology Zhengzhou People's Republic of China
| | - Mingli Zhang
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control Henan University of Technology Zhengzhou People's Republic of China
| | - Huali Jin
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control Henan University of Technology Zhengzhou People's Republic of China
| | - Yawei Huang
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control Henan University of Technology Zhengzhou People's Republic of China
| | - Min Wei
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control Henan University of Technology Zhengzhou People's Republic of China
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7
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Kong D, Li X, Tang Y, Sui M, Li J, Ma Y, Wang G, Gu W, Guo X, Yang M. A highly parallel DTT/MB-DNA/Au electrochemical biosensor for trace Hg monitoring by using configuration occupation approach and SECM. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 234:113391. [PMID: 35286957 DOI: 10.1016/j.ecoenv.2022.113391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 02/22/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Environmental pollution and medicine safety have aroused increasing public concerns due to human health. Amongst various contaminants, mercury is of special attention owing to their environmental persistence and biogeochemical recycling and ecological risks. Herein, a simple and highly parallel electrochemical biosensor for Hg determination was designed and investigated. The proposed biosensor was prepared and compared between (1) DTT/MB-DNA/Au with configuration occupation approach and (2) MCH/MB-DNA/Au with passivation approach. According to the combined results of scanning electrochemical microscope (SECM) and Randles-Sevcik equation, the DTT modified electrode exhibited high uniformity on DNA distribution and superb stability on electron transfer in Hg2+ detection. Evidentially, the response value of proposed DTT/MB-DNA/Au was increased from 57.518% to 97.607%, while RSD% between duplicate runs had dropped from 22.658% to 0.223% (n = 3). Moreover, the increased proportion of effective working area was 467.380% compared with general sensors. Besides, DTT concentration, DNA concentration as well as assembly time were optimized, utilizing electrochemical impedance spectroscopy (EIS), Cyclic Voltammetry (CV) and Square Wave Anode Stripping Voltammetry (SWASV). This optimized biosensor exhibited an excellent selectivity toward Hg2+ over Cu2+, As2+, Cd2+, Pb2+, Cr3+, Ni2+ and Zn2+ etc., and the stability of DTT/MB-DNA/Au were at least two times better even after 3 days under room temperature. Also, a linear relation was observed between the peak current and Hg2+concentrations in a range from 0.25 nM to 2.00 μM with a detection limit of 53.00 pM under optimal conditions. Finally, DTT/MB-DNA/Au was applied for plants and medical products analysis. In all, this optimized DTT/MB-DNA/Au with advantages of high repeatability and sensitivity would provide a new insight into the design and application of biosensor for reliable sensing in safeguarding plant protection and medicinal safety.
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Affiliation(s)
- Dandan Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
| | - Xinyue Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Yang Tang
- Institute of Applied Electrochemistry, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Ming Sui
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Jinping Li
- Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Yonggui Ma
- Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Gaofeng Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China; Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Wei Gu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China; Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Xuegang Guo
- Academy of Plateau Science and Sustainability, Qinghai Normal University / Key Laboratory of medicinal animal and plant resources of Qinghai Tibet Plateau, Xining, Qinghai 810008, PR China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
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8
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Zhou Q, Wu Y, Li Z, Li Y, Liu M, Qu T, Chen C. Measurement of mercury with highly selective fluorescent chemoprobe by carbon dots and silver nanoparticles. CHEMOSPHERE 2021; 274:129959. [PMID: 33979911 DOI: 10.1016/j.chemosphere.2021.129959] [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: 12/09/2020] [Revised: 01/28/2021] [Accepted: 02/09/2021] [Indexed: 05/24/2023]
Abstract
This work describes a novel fluorescent chemoprobe that uses carbon dots and silver nanoparticles (AgNPs) to monitor mercury ions in aqueous samples attributed to the principle of inner filter effect. The fluorescent response signal of the carbon dots is diminished by AgNPs, attributed to inner filter effect, and is restored with the addition of Hg2+. The fluorescent chemoprobe was specific over the range from 0.01 to 2.5 μM and a high sensitivity of 3.6 nM. The chemoprobe was validated using real local aqueous samples, and the spike recoveries of 97.4%-103% were excellent and satisfied. The data indicated that the developed fluorescent chemoprobe was sensitive, selective, stable and reliable. This fluorescent chemoprobe provides a sensitive tool with broad prospects for mercury detection in aqueous samples and the work will offer ideas for designing and constructing novel fluorescent probes.
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Affiliation(s)
- Qingxiang Zhou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Yalin Wu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China; Beijing Municipal Research Institute of Environmental Protection, Beijing, 100037, China
| | - Zhi Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Yanhui Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Menghua Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Tongxu Qu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Chunmao Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, 102249, China.
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9
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Sun Q, Ma W, Dan O, Li G, Yang Y, Yan X, Su H, Lin Z, Cai Z. Thiol functionalized covalent organic framework for highly selective enrichment and detection of mercury by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Analyst 2021; 146:2991-2997. [PMID: 33949450 DOI: 10.1039/d1an00282a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A spherical thiol-functionalized covalent organic framework (COF-SH) was designed via a facile thiol-yne click reaction of a alkynyl-terminated COF and pentaerythritol tetra(3-mercaptopropionate). The COF-SH was explored as a new adsorbent for the selective enrichment of Hg2+. The as-prepared COF-SH exhibited a uniform mesoporous structure, a high abundance of binding sites, and good chemical stability, which endow it with great performance for the adsorption of Hg2+ and its corresponding maximum adsorption capacity was up to 617.3 mg g-1. Furthermore, the adsorption behavior of Hg2+ on the COF-SH wasin good agreement with the Langmuir and pseudo-second-order models. The influences of adsorbent dosage, pH, selectivity, and reusability of the COF-SH on Hg2+ adsorption were also investigated. Besides this, the COF-SH showed high selectivity towards Hg2+ even in the presence of a high concentration of K+, Na+, Ca2+, Mg2+ and Zn2+ metal ions. Using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS), the corresponding limit of detection (LOD) of Hg2+ was determined at very low concentrations of 80 pg mL-1 (equal to 396 amoL μL-1). In addition, the COF-SH was successfully applied to rapidly enrich and sensitively detect Hg2+ in industrial sewage, with recoveries in the range of 101.8-103.4%, demonstrating the promising potential of COF-SH as an effective adsorbent for use in environmental sample pretreatment.
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Affiliation(s)
- Qianqian Sun
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Wende Ma
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Ouyang Dan
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Guorong Li
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Yixin Yang
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Xi Yan
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Hang Su
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Zian Lin
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Zongwei Cai
- Partner State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, SAR, P. R. China
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10
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Wang S. Construction of DNA Biosensors for Mercury (II) Ion Detection Based on Enzyme-Driven Signal Amplification Strategy. Biomolecules 2021; 11:biom11030399. [PMID: 33800447 PMCID: PMC8001444 DOI: 10.3390/biom11030399] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 02/03/2023] Open
Abstract
Mercury ion (Hg2+) is a well-known toxic heavy metal ion. It is harmful for human health even at low concentrations in the environment. Therefore, it is very important to measure the level of Hg2+. Many methods, reviewed in several papers, have been established on DNA biosensors for detecting Hg2+. However, few reviews on the strategy of enzyme-driven signal amplification have been reported. In this paper, we reviewed this topic by dividing the enzymes into nucleases and DNAzymes according to their chemical nature. Initially, we introduce the nucleases including Exo III, Exo I, Nickase, DSN, and DNase I. In this section, the Exo III-driven signal amplification strategy was described in detail. Because Hg2+ can help ssDNA fold into dsDNA by T-Hg-T, and the substrate of Exo III is dsDNA, Exo III can be used to design Hg2+ biosensor very flexibly. Then, the DNAzyme-assisted signal amplification strategies were reviewed in three categories, including UO22+-specific DNAzymes, Cu2+-specific DNAzymes and Mg2+-specific DNAzymes. In this section, the Mg2+-specific DNAzyme was introduced in detail, because this DNAzyme has highly catalytic activity, and Mg2+ is very common ion which is not harmful to the environment. Finally, the challenges and future perspectives were discussed.
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Affiliation(s)
- Shuchang Wang
- School of Life Sciences, East China Normal University, Shanghai 200241, China
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11
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Heterostructured Au/MoS2-MWCNT nanoflowers: A highly efficient support for the electrochemical aptasensing of solvated mercuric ion. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105154] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Zhong YQ, Ning TJ, Cheng L, Xiong W, Wei GB, Liao FS, Ma GQ, Hong N, Cui HF, Fan H. An electrochemical Hg 2+ sensor based on signal amplification strategy of target recycling. Talanta 2020; 223:121709. [PMID: 33303159 DOI: 10.1016/j.talanta.2020.121709] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/22/2020] [Accepted: 09/24/2020] [Indexed: 01/01/2023]
Abstract
In this work, an unmodified homogeneous electrochemical sensor based on electrochemical bonding and catalytic hairpin assembly (CHA) was first constructed for the high sensitivity detection of Hg2+. Herein, tetraferrocene, a synthesized compound, was used as a signal marker that modified both ends of the hairpin probe to amplify the electrochemical signal. The interaction of T-Hg2+-T could induce the catalytic self-assembly of hairpins by means of auxiliary DNA. The rigid DNA triangle that was formed easily reaches the electrode and induced Au-S self-assembly assisted by potential, allowing tetraferrocene to reach the electrode surface and generate a sensitive electrochemical signal. CHA and tetraferrocene signal markers accomplished dual signal amplification, and the limit of detection was 0.12 pM. Differential pulse voltammetry experiments in the presence of tetraferrocene redox indicator show that the linear response range of electrochemical biosensors to mercury ions is 0.2-2000 pM, This technology offers good selectivity and high recognition efficiency for the detection of mercury ions and has broad application prospects in actual sample detection.
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Affiliation(s)
- You Quan Zhong
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China
| | - Tian Jiao Ning
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China
| | - Lin Cheng
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China
| | - Wei Xiong
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China
| | - Guo Bing Wei
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China
| | - Fu Sheng Liao
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China
| | - Guang Qiang Ma
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China
| | - Nian Hong
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China
| | - Han Feng Cui
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China.
| | - Hao Fan
- Department of Pharmacy, JiangXi University of Traditional Chinese Medicine, Nanchang, JiangXi, 330004, China.
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13
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Li L, Qiu Y, Feng Y, Li Y, Wu K, Zhu L. Stripping voltammetric analysis of mercury ions at nitrogen-doped reduced graphene oxide modified electrode. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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14
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Huang Q, Liu Y, Zhang C, Zhang Z, Liu F, Peng J. Au Quantum Dot/Nickel Tetraminophthalocyanaine-Graphene Oxide-Based Photoelectrochemical Microsensor for Ultrasensitive Epinephrine Detection. ACS OMEGA 2020; 5:8423-8431. [PMID: 32337404 PMCID: PMC7178368 DOI: 10.1021/acsomega.9b02998] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 01/21/2020] [Indexed: 06/11/2023]
Abstract
Owing to the importance of epinephrine as a neurotransmitter and hormone, sensitive methods are required for its detection. We have developed a sensitive photoelectrochemical (PEC) microsensor based on gold quantum dots (Au QDs) decorated on a nickel tetraminophthalocyanine-graphene oxide (NiTAPc-Gr) composite. NiTAPc was covalently attached to the surface of graphene oxide to prepare NiTAPc-Gr, which exhibits remarkable stability and PEC performance. In situ growth of Au QDs on the NiTAPc-Gr surface was achieved using chemical reduction at room temperature. The synthesized materials were characterized by Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, and electrochemical impedance spectroscopy. Au QDs@NiTAPc-Gr provided a much greater photocurrent than NiTAPc-Gr, making it suitable for the ultrasensitive PEC detection of epinephrine. The proposed PEC strategy exhibited a wide linear range of 0.12-243.9 nM with a low detection limit of 17.9 pM (S/N = 3). Additionally, the fabricated PEC sensor showed excellent sensitivity, remarkable stability, and good selectivity. This simple, fast, and low-cost strategy was successfully applied to the analysis of human serum samples, indicating the potential of this method for clinical detection applications.
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Affiliation(s)
- Qing Huang
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
| | - Yuxia Liu
- College of Physics and Electronic Engineering, Guangxi Normal University for Nationalities, Chongzuo 532200, China
| | - Cuizhong Zhang
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
| | - Zhenfa Zhang
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
| | - Fengping Liu
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
| | - Jinyun Peng
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
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15
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Liu W, Yang L, Yu K, Li Y. Enzyme‐Assisted Cyclic Signal Amplification by Using Carbon Nanomaterials for Hg
2+
Detection. ChemistrySelect 2020. [DOI: 10.1002/slct.201904946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Wei Liu
- Department College of PharmacyXinxiang Medical University 601 Jinsui Road Xinxiang, Henan Provincial 453000 PR China
| | - Lijuan Yang
- Department College of PharmacyXinxiang Medical University 601 Jinsui Road Xinxiang, Henan Provincial 453000 PR China
| | - Kaili Yu
- Department College of PharmacyXinxiang Medical University 601 Jinsui Road Xinxiang, Henan Provincial 453000 PR China
- Department of MedicineXinxiang First People's Hospital No. 63 Yiheng Street, Xinxiang Henan Province 453000 PR China
| | - Yongyang Li
- Department College of PharmacyXinxiang Medical University 601 Jinsui Road Xinxiang, Henan Provincial 453000 PR China
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16
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Wu Y, Wen X, Fan Z. An AIE active pyrene based fluorescent probe for selective sensing Hg 2+ and imaging in live cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 223:117315. [PMID: 31277030 DOI: 10.1016/j.saa.2019.117315] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/22/2019] [Accepted: 06/23/2019] [Indexed: 06/09/2023]
Abstract
A novel fluorescence probe pyrene based derivatives (1) with aggregation induced emission (AIE) properties was synthesized by an easy procedure. The probe 1 was characterized by UV-vis, Fluorescent, NMR, MS, SEM etc. It displayed high sensitivity and selectivity to Hg2+ compared with other metal ions in H2O/DMF solvent and the detection limit was 4.2 × 10-7 M. Upon addition of Hg2+, the 1 - Hg2+ compound was formed with the formation of 2:1. More importantly, the probe exhibited very low cytotoxicity and strong fluorescence emission in live cells. This showed that the probe had potential applications for detection of Hg2+ in environment and biosystems.
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Affiliation(s)
- Yaqin Wu
- School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, PR China
| | - Xiaoye Wen
- School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, PR China
| | - Zhefeng Fan
- School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, PR China.
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Ehzari H, Safari M, Shahlaei M. A signal amplification by QDs used for ferrocene-labeled sandwich aptasensor for determination of Hg2+ in water samples. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01718-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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18
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Nucleic acid-based ratiometric electrochemiluminescent, electrochemical and photoelectrochemical biosensors: a review. Mikrochim Acta 2019; 186:405. [DOI: 10.1007/s00604-019-3514-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 05/16/2019] [Indexed: 10/26/2022]
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19
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Ziółkowski R, Uścińska A, Mazurkiewicz-Pawlicka M, Małolepszy A, Malinowska E. Directly-thiolated graphene based electrochemical sensor for Hg(II) ion. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Liu Z, Luo D, Ren F, Ran F, Chen W, Zhang B, Wang C, Chen H, Wei J, Chen Q. Ultrasensitive fluorescent aptasensor for CRP detection based on the RNase H assisted DNA recycling signal amplification strategy. RSC Adv 2019; 9:11960-11967. [PMID: 35517011 PMCID: PMC9063470 DOI: 10.1039/c9ra01352k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/27/2022] [Accepted: 04/09/2019] [Indexed: 11/21/2022] Open
Abstract
An aptamer-based method for the ultrasensitive fluorescence detection of C-reactive protein (CRP) was developed using the ribonuclease H (RNase H) assisted DNA recycling signal amplification strategy. In this assay, CRP can specifically bind to the aptamer of CRP and the DNA chain of P1 is released from the aptamer/P1 (Ap/P1) complexes. After the addition of the fluorescence labeled (5-FAM) RNA, P1 hybridizes with fluorescence labeled RNA to form a P1/RNA double strand. When RNase H is added, the RNA with fluorescence labeling in the double strand is specifically cut into nucleotide fragments, which cannot be adsorbed on the surface of the GO, so as to generate a fluorescence signal. In the absence of CRP, fluorescence labeled RNA cannot hybridize with P1 to form double strands, which is able to directly adsorb on the surface of GO, resulting in no fluorescence signal. The detection limit is as low as 0.01 ng mL-1, with a linear dynamic range from 50 pg mL-1 to 100 ng mL-1. This sensor is able to detect CRP in spiked human serum, urine and saliva. Thus, it shows a great application prospect in disease diagnosis and prognosis.
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Affiliation(s)
- Zhongzhi Liu
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
| | - Dan Luo
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
- College of Pharmacy, Hubei University of Medicine Hubei Shiyan 442008 China
| | - Fangling Ren
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
- College of Pharmacy, Hubei University of Medicine Hubei Shiyan 442008 China
| | - Fengying Ran
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
| | - Wei Chen
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
| | - Bingqiang Zhang
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
| | - Ceming Wang
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
| | - Hao Chen
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
| | - Jian Wei
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
| | - Qinhua Chen
- Affiliated Dongfeng Hospital, Hubei University of Medicine Hubei Shiyan 442008 China +86 0719 8272283
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine Hubei Shiyan 442008 China
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Jin H, Zhang M, Wei M, Cheng JH. A voltammetric biosensor for mercury(II) using reduced graphene oxide@gold nanorods and thymine-Hg(II)-thymine interaction. Mikrochim Acta 2019; 186:264. [DOI: 10.1007/s00604-019-3372-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 03/20/2019] [Indexed: 01/19/2023]
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22
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Fluorometric determination of mercury(II) via a graphene oxide-based assay using exonuclease III-assisted signal amplification and thymidine-Hg(II)-thymidine interaction. Mikrochim Acta 2019; 186:216. [PMID: 30838468 DOI: 10.1007/s00604-019-3332-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 02/22/2019] [Indexed: 12/26/2022]
Abstract
A highly sensitive and selective fluorometric method is described for determination of mercury(II). It is based on (a) the use of graphene oxide (GO) acting as a quencher of the fluoresence of the carboxy-fluorescein (FAM), and (b) of Hg(II)-triggered cleavage of the newly formed nucleic acid sequences harbored blunt 3'-hydroxyl termini by exonuclease III (Exo III) that leads to signal amplification. Two DNA probes are used, viz. a capture probe (CP) and a help probe; HP) that is partially complementary. In the absence of Hg(II), the FAM-labeled hairpin (signal probe, SP) is adsorbed onto the surface of GO via π-stacking interactions. CP blocks the release of the HP for binding to SP. This results in quenching of the green fluorescence of the label. Upon addition of Hg(II), the linear structure of CP is converted to a hairpin structure due to the formation of thymidine-Hg(II)-thymidine duplexes. HP is released from the CP/HP hybrids, and this causes SP to be released from from GO and fluorescence to be recovered. The signal is strongly amplified by using Exo III-assisted targeting and recycling of HP. Hence, Hg(II) can be detected via the strong increase in fluorescence. The method has a linear response in the 0.1 to 30 nM Hg(II) concentration range and a 10 pM detection limit. It was applied to the determination of Hg(II) in three (spiked) Chinese medicines. Graphical abstract Schematic representation of fluorescence sensing strategy for Hg2+ by using graphene oxide as a quencher and exonuclease III-assisted signal amplification.
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Label-free DNA Y junction for detection of Hg2+ using exonuclease III or graphene oxide-assisted background reduction. Microchem J 2019. [DOI: 10.1016/j.microc.2018.12.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sensitive electrochemical DNA-based biosensors for the determination of Ag+ and Hg2+ ions and their application in analysis of amalgam filling. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1384-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Chun HJ, Kim S, Han YD, Kim DW, Kim KR, Kim HS, Kim JH, Yoon HC. Water-soluble mercury ion sensing based on the thymine-Hg 2+-thymine base pair using retroreflective Janus particle as an optical signaling probe. Biosens Bioelectron 2018; 104:138-144. [PMID: 29331427 DOI: 10.1016/j.bios.2018.01.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/27/2017] [Accepted: 01/04/2018] [Indexed: 11/18/2022]
Abstract
Herein, we report an optical sensing platform for mercury ions (Hg2+) in water based on the integration of Hg2+-mediated thymine-thymine (T-T) stabilization, a biotinylated stem-loop DNA probe, and a streptavidin-modified retroreflective Janus particle (SA-RJP). Two oligonucleotide probes, including a stem-loop DNA probe and an assistant DNA probe, were utilized. In the absence of Hg2+, the assistant DNA probe does not hybridize with the stem-loop probe due to their T-T mismatch, so the surface-immobilized stem-loop DNA probe remains a closed hairpin structure. In the presence of Hg2+, the DNA forms a double-stranded structure with the loop region via Hg2+-mediated T-T stabilization. This DNA hybridization induces stretching of the stem-loop DNA probe, exposing biotin. To translate these Hg2+-mediated structural changes in DNA probe into measurable signal, SA-RJP, an optical signaling label, is applied to recognize the exposed biotin. The number of biospecifically bound SA-RJPs is proportional to the concentration of Hg2+, so that the concentration of Hg2+ can be quantitatively analyzed by counting the number of RJPs. Using the system, a highly selective and sensitive measurement of Hg2+ was accomplished with a limit of detection of 0.027nM. Considering the simplified optical instrumentation required for retroreflection-based RJP counting, RJP-assisted Hg2+ measurement can be accomplished in a much easier and inexpensive manner. Moreover, the detection of Hg2+ in real drinking water samples including tap and commercial bottled water was successfully carried out.
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Affiliation(s)
- Hyeong Jin Chun
- Department of Molecular Science and Technology, Ajou University, Suwon 443749, South Korea
| | - Saemi Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443749, South Korea
| | - Yong Duk Han
- Department of Molecular Science and Technology, Ajou University, Suwon 443749, South Korea
| | - Dong Woo Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443749, South Korea
| | - Ka Ram Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443749, South Korea
| | - Hyo-Sop Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443749, South Korea
| | - Jae-Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443749, South Korea
| | - Hyun C Yoon
- Department of Molecular Science and Technology, Ajou University, Suwon 443749, South Korea.
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Gervais E, Aceta Y, Gros P, Evrard D. Study of an AuNPs functionalized electrode using different diazonium salts for the ultra-fast detection of Hg(II) traces in water. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.12.136] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Bala A, Górski Ł. Peptide nucleic acid as a selective recognition element for electrochemical determination of Hg 2. Bioelectrochemistry 2017; 119:189-195. [PMID: 29055249 DOI: 10.1016/j.bioelechem.2017.09.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/15/2017] [Accepted: 09/15/2017] [Indexed: 02/01/2023]
Abstract
A novel electrochemical PNA-based biosensor for the determination of Hg2+ is described. The receptor layer, containing single strands of polythymine PNA (peptide nucleic acid), was formed at the surface of gold electrode. Due to the presence of thymine bases and peptide bonds, an interaction between Hg2+ ion and receptor layer occurs. The influence of chain modification - PNA vs. DNA - and type of redox marker - anionic AQMS-Na (sodium salt of anthraquinone-2-sulfonic acid) and FeII/III (potassium ferri/ferrocyanide) or cationic MB (methylene blue) and RuHex (hexaammineruthenium(III) chloride) - were studied. Proposed PNA-based biosensor with anionic AQMS-Na as a redox marker demonstrated significantly better analytical parameters, as compared to results obtained for other tested redox markers (for measurements at pH6.0). The linear response towards Hg2+ was in the range from 5 to 500nmol·L-1 with the detection limit of 4.5nmol·L-1. The developed sensor distinguishes itself with high selectivity towards Hg2+, even for solutions containing several interfering cations. Interactions between Hg2+ and PNA receptor layer were studied using square wave voltammetry (SWV) and electrochemical impedance spectroscopy (EIS).
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Affiliation(s)
- Agnieszka Bala
- Institute of Biotechnology, Department of Microbioanalytics, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Łukasz Górski
- Institute of Biotechnology, Department of Microbioanalytics, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.
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Leng L, Li Y, Liu Y, Li F, Xiong X. Fluorescent Determination of Mercury(II) Using Rhodamine B Immobilized on Polystyrene Microspheres. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1320667] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ling Leng
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, Jiangsu, China
| | - Yi Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, Jiangsu, China
| | - Yuanyuan Liu
- Department of Chemical and Pharmaceutical Engineering, Southeast University ChengXian College, Nanjing, Jiangsu, China
| | - Fangshi Li
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, Jiangsu, China
| | - Xiaohui Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, Jiangsu, China
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Wang H, Huang W, Tang L, Chen Y, Zhang Y, Wu M, Song Y, Wen S. Electrospun nanofibrous mercury filter: Efficient concentration and determination of trace mercury in water with high sensitivity and tunable dynamic range. Anal Chim Acta 2017; 982:96-103. [DOI: 10.1016/j.aca.2017.06.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 06/01/2017] [Accepted: 06/02/2017] [Indexed: 10/19/2022]
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Square voltammetric sensing of mercury at very low working potential by using oligomer-functionalized Ag@Au core-shell nanoparticles. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2372-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Huang J, Su X, Li Z. Metal ion detection using functional nucleic acids and nanomaterials. Biosens Bioelectron 2017; 96:127-139. [PMID: 28478384 DOI: 10.1016/j.bios.2017.04.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 12/25/2022]
Abstract
Metal ion detection is critical in a variety of areas. The past decade has witnessed great progress in the development of metal ion sensors using functional nucleic acids (FNAs) and nanomaterials. The former has good recognition selectivity toward metal ions and the latter possesses unique properties for enhancing the performance of metal ion sensors. This review offers a summary of FNA- and nanomaterial-based metal ion detection methods. FNAs mainly include DNAzymes, G-quadruplexes, and mismatched base pairs and nanomaterials cover gold nanoparticles (GNPs), quantum dots (QDs), carbon nanotubes (CNTs), and graphene oxide (GO). The roles of FNAs and nanomaterials are introduced first. Then, various methods based on the combination of different FNAs and nanomaterials are discussed. Finally, the challenges and future directions of metal ion sensors are presented.
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Affiliation(s)
- Jiahao Huang
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
| | - Xuefen Su
- School of Public Health and Primary Care, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Zhigang Li
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
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Thymine chitosan nanomagnets for specific preconcentration of mercury(II) prior to analysis using SELDI-MS. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2125-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Miao P, Tang Y, Wang L. DNA Modified Fe 3O 4@Au Magnetic Nanoparticles as Selective Probes for Simultaneous Detection of Heavy Metal Ions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3940-3947. [PMID: 28079364 DOI: 10.1021/acsami.6b14247] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Driven by the urgent need to detect trace heavy metal ions in various real water samples, this article demonstrates for the first time an electrochemical biosensor based on DNA modified Fe3O4@Au magnetic nanoparticles (NPs). Three DNA probes are designed to contain certain mismatched base pairs. One is thiolated and modified on the surface of Fe3O4@Au NPs (DNA 1). The other two probes (DNA 2 and 3) are labeled with two independent electrochemical species. Stable structures of cytosine-Ag+-cytosine and thymine-Hg2+-thymine formed in the presence of Ag+ and Hg2+ can assist the hybridization of DNA 1/DNA 2 and DNA 1/DNA 3, which locate corresponding electrochemical species onto the surface of the magnetic NPs. The achieved nanocomposites are then used as selective electrochemical probes for the detection of heavy metal ions by recording the square wave voltammetry signals. Simultaneous detection of Ag+ and Hg2+ is demonstrated without significant interference, and their individual high sensitivities are fundamentally preserved, which meet the requirements of U.S. Environmental Protection Agency (USEPA). Furthermore, the proposed method has been challenged by various real water samples. The results confirm the DNA modified magnetic NPs based sensing method may have potential applications for the monitoring of heavy metal ions in real sample analysis.
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Affiliation(s)
- Peng Miao
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences , Suzhou 215163, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yuguo Tang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences , Suzhou 215163, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Lei Wang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences , Suzhou 215163, People's Republic of China
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Liao J, Lu M, Tang D. Enhanced sensitivity of quartz crystal microbalance immunosensor via back-conjugation of biofunctionalized magnetic beads with an external magnetic field. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2016.07.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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