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Qian SQ, Yuan M, Zuo XW, Cao H, Yu JS, Hao LL, Yang KL, Xu F. A novel strategy for enhancing the stability of aptamer conformations in heavy metal ion detection. Anal Chim Acta 2024; 1306:342577. [PMID: 38692784 DOI: 10.1016/j.aca.2024.342577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND Detection methods based on aptamer probes have great potential and progress in the field of rapid detection of heavy metal ions. However, the unstable conformation of aptamers often results in poor sensitivity due to the dissociation of aptamer-target complex in real environments. RESULTS In this study, we developed a locking aptamer probe and combined it with AgInZnS quantum dots for the first time to detect cadmium ions. When cadmium ions are combined with the probe, the cadmium ions are fixed in the core-locking position, forming a stable cavity structure. The limit of detection (LOD) was achieved at a concentration of 6.9 nmol L-1, with a broad detection range from 10 nmol L-1 to 1000 μmol L-1, and good recovery rates (92.93%-102.8 %) were achieved in aquatic product testing. The locking aptamer probe with stable conformation effectively enhances the stability of the aptamer-target complex and remains good stability in four buffer environments as well as a 600 mmol L-1 salt solution; it also exhibits good stability at pH 6.5-7.5 and temperatures ranging from 25 °C to 35 °C. SIGNIFICANCE Overall, our study presented a general, simple, and cost-effective strategy for stabilizing aptamer conformations, and used for highly sensitive detection of cadmium ions.
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Affiliation(s)
- Shi Quan Qian
- Shanghai Engineering Research Centre of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Min Yuan
- Shanghai Engineering Research Centre of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore
| | - Xian Wei Zuo
- Key Laboratory of Sensor and Sensing Technology of Gansu Province, Gansu Academy of Sciences, Lanzhou, China
| | - Hui Cao
- Shanghai Engineering Research Centre of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Jin Song Yu
- Shanghai Engineering Research Centre of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Li-Ling Hao
- Shanghai Engineering Research Centre of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Kun Lin Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.
| | - Fei Xu
- Shanghai Engineering Research Centre of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China.
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Aggarwal R, Saini D, Mitra R, Sonkar SK, Sonker AK, Westman G. From Bulk Molybdenum Disulfide (MoS 2) to Suspensions of Exfoliated MoS 2 in an Aqueous Medium and Their Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9855-9872. [PMID: 38687994 DOI: 10.1021/acs.langmuir.3c03116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Two-dimensional (2D) layered materials like graphene, transition-metal dichalcogenides (TMDs), boron nitrides, etc., exhibit unique and fascinating properties, such as high surface-to-volume ratio, inherent mechanical flexibility and robustness, tunable bandgap, and high carrier mobility, which makes them an apt candidate for flexible electronics with low consumption of power. Because of these properties, they are in tremendous demand for advancement in energy, environmental, and biomedical sectors developed through various technologies. The production and scalability of these materials must be sustainable and ecofriendly to utilize these unique properties in the real world. Here, in this current review, we review molybdenum disulfide (MoS2 nanosheets) in detail, focusing on exfoliated MoS2 in water and the applicability of aqueous MoS2 suspensions in various fields. The exfoliation of MoS2 results in the formation of single or few-layered MoS2. Therefore, this Review focuses on the few layers of exfoliated MoS2 that have the additional properties of 2D layered materials and higher excellent compatibility for integration than existing conventional Si tools. Hence, a few layers of exfoliated MoS2 are widely explored in biosensing, gas sensing, catalysis, photodetectors, energy storage devices, a light-emitting diode (LED), adsorption, etc. This review covers the numerous methodologies to exfoliate MoS2, focusing on the various published methodologies to obtain nanosheets of MoS2 from water solutions and their use.
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Affiliation(s)
- Ruchi Aggarwal
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Deepika Saini
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Richa Mitra
- Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
- Low Temperature Laboratory, Department of Applied Physics, Aalto University, Espoo 02150, Finland
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Amit Kumar Sonker
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 41296, Sweden
- Wallenberg Wood Science Centre (WWSC), Chalmers University of Technology, Gothenburg, 41296, Sweden
- BA5409 cellulose films and coatings, VTT Technical Research Center of Finland, Tietotie 4E, Espoo 02150, Finland
| | - Gunnar Westman
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 41296, Sweden
- Wallenberg Wood Science Centre (WWSC), Chalmers University of Technology, Gothenburg, 41296, Sweden
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3
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Zhao R, Lu W, Chai X, Dong C, Shuang S, Guo Y. Design of a dual-mode ratiometric fluorescent probe via MOF-on-MOF strategy for Al (III) and pH detection. Anal Chim Acta 2024; 1298:342403. [PMID: 38462341 DOI: 10.1016/j.aca.2024.342403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/28/2024] [Accepted: 02/21/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND The construction of ratiometric fluorescent MOF sensors with integrated self-calibration and dual-channel detection can efficiently overcome the deficiencies of single-signal sensing. In this regard, the rational design of structurally functionalized MOFs is paramount for enhancing their performance in ratiometric fluorescent sensors. Lately, the concept of MOF-on-MOF design has garnered notable interest as a potential strategy for regulating the structural parameters of MOFs by integrating two or more distinct MOF types. Great efforts have been dedicated to exploring new MOF-on-MOF hybrids and developing their applications in diverse fields. Even so, these materials are still in the stage of advancement in the sensing field. RESULTS Herein, a Zr-based metal-organic framework anchored on a rare-earth metal-organic framework (UiO-66(OH)2@Y-TCPP) was prepared for the ratiometric fluorescence detection toward Al (III) and pH. In this probe, the UiO-66(OH)2 featured hydroxyl active sites for Al (III), leading to a significant enhancement in fluorescence intensity upon the addition of Al (III), while the signal emitted by the red-emitting Y-TCPP, serving as the reference, remained constant. UiO-66(OH)2@Y-TCPP exhibited excellent selectivity for Al (III) sensing with a wider linear range of 0.1-1000 μM, and a lower detection limit of 0.06 μM. This probe has also been utilized for the quantitative determination of Al (III) in hydrotalcite chewable tablets with satisfactory results. In addition, the probe realized ratiometric pH sensing in the range of 7-13 using UiO-66(OH)2 as an interior reference. The paper-based probe strip was developed for visual pH sensing. By installing color recognition and processing software on a smartphone, real-time and convenient pH sensing could be achieved. SIGNIFICANCE This is the first ratiometric fluorescent sensor for Al (III) and pH detection based on a MOF-on-MOF composite probe, which yields two different response modes. The detection results of Al (III) in hydrotalcite chewable tables and smartphone imaging for pH test paper demonstrate the practicability of the probe. This work opens up a new outlook on constructing a multi-functional application platform with substantial potential for employment in environmental and biological analysis tasks.
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Affiliation(s)
- Ruirui Zhao
- College of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Wenjing Lu
- College of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Xiaojing Chai
- College of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Chuan Dong
- College of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Shaomin Shuang
- College of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China.
| | - Yujing Guo
- College of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China.
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Mohan B, Neeraj, Virender, Kadiyan R, Singh K, Singh G, Kumar K, Kumar Sharma H, JL Pombeiro A. MOFs composite materials for Pb2+ ions detection in water: recent trends & advances. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Excitation-dependent ratiometric fluorescence response to mercury ion based on single hexagonal boron nitride quantum dots. Anal Chim Acta 2022; 1236:340585. [DOI: 10.1016/j.aca.2022.340585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/23/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022]
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Girmatsion M, Adhanom A, Gebremedhin H, Mahmud A, Xie Y, Cheng Y, Yu H, Yao W, Guo Y, Qian H. Ultrasensitive and selective detection of Hg 2+ using fluorescent phycocyanin in an aqueous system. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:886-895. [PMID: 34129421 DOI: 10.1080/10934529.2021.1935600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
Hg2+ toxicity is one of the most common chemical poisonings that occurs mainly from drinking polluted water. In the current work, Phycocyanin (PC) was exploited as a fluorescent sensor for sensitive and selective detection of Hg2+ in an aqueous system. PC-Hg2+ interaction was monitored using a spectro-fluorometer under different buffered solutions at pH values of 6,7,8,9, or 10 above the isoelectric point of PC (5.18). A remarkable decrease of PC fluorescence intensity was observed under Tris-buffer at pH 6 upon the addition of increasing Hg2+ concentrations (1-120 nM). Under the maintained experimental conditions, the current sensor showed a good linear relationship with R2 = 0.9971 and a limit of detection as low as 0.7 nM was achieved. In addition, a notable selectivity of Hg2+ over other nine heavy metals (Cu2+, Zn2+, Pb2+, Mg2+, Mn4+, Li+, Fe3+, Co2+, and Al3+) was achieved in the presence of 120 nM of each metal. Moreover, the current fluorescent detection assay was also tested in real samples of pond water, and recoveries as well as relative standard deviations within the acceptable limits were recorded.
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Affiliation(s)
- Mogos Girmatsion
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technology, Massawa, Eritrea
| | - Awet Adhanom
- Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technology, Massawa, Eritrea
- Ministry of Marine Resources, Quality control laboratory, Massawa, Eritrea
| | - Henok Gebremedhin
- Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technology, Massawa, Eritrea
- Ministry of Marine Resources, Quality control laboratory, Massawa, Eritrea
| | - Abdu Mahmud
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technology, Massawa, Eritrea
| | - Yunfei Xie
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hang Yu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - He Qian
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
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Ukale D, Lönnberg T. Organomercury Nucleic Acids: Past, Present and Future. Chembiochem 2021; 22:1733-1739. [PMID: 33410571 PMCID: PMC8247973 DOI: 10.1002/cbic.202000821] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/30/2020] [Indexed: 11/19/2022]
Abstract
Synthetic efforts towards nucleosides, nucleotides, oligonucleotides and nucleic acids covalently mercurated at one or more of their base moieties are summarized, followed by a discussion of the proposed, realized and abandoned applications of this unique class of compounds. Special emphasis is given to fields in which active research is ongoing, notably the use of HgII -mediated base pairing to improve the hybridization properties of oligonucleotide probes. Finally, this minireview attempts to anticipate potential future applications of organomercury nucleic acids.
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Affiliation(s)
- Dattatraya Ukale
- Department of ChemistryUniversity of TurkuVatselankatu 220014TurkuFinland
| | - Tuomas Lönnberg
- Department of ChemistryUniversity of TurkuVatselankatu 220014TurkuFinland
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Synthesis of new fluorene compounds for highly selective sensing of picric acid, Fe3+ and l-arginine. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128395] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Gan L, Wang Y, Zhang M, Xia X, Huang J. Hierarchically spacing DNA probes on bio-based nanocrystal for spatial detection requirements. Sci Bull (Beijing) 2019; 64:934-940. [PMID: 36659758 DOI: 10.1016/j.scib.2019.05.013] [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: 04/22/2019] [Revised: 05/09/2019] [Accepted: 05/14/2019] [Indexed: 01/21/2023]
Abstract
Sterically spacing and locating functional matters at the nanoscale exert critical effects on their application, especially for the fluorescence probes whose aggregation causes emission quenching. Here we achieved a hierarchical spacing strategy of DNA fluorescence probes for ion detection via locating them separately on rod-like cellulose nanocrystals (CNCs) and further isolating CNCs by pre-grafting long molecular chains. Controlling chemical structure of CNC and location degree could adjust the inter-space of DNA probes (with a molecular length of ca. 3.6 nm) in a range of 3.5-6.5 nm with a gradient about 0.2 nm. A length up to micrometer scale of the CNC nanorods was necessary to provide DNA probes with well-separated grafting locations and enough freedom, which brought a vast linear detection range from 10 nmol/L to 5 μmol/L of Hg2+ concentration. The abundant reactive sites on CNC allowed a grafting pre-location of poly (tert-butyl acrylate) (PtBA) to promote the isolation of DNA probes. Controlled radical polymerization was employed to adjust the length of PtBA molecular chains, which increased the linear sensitivity coefficient of Hg2+ detection by ca. 2.5 times. This hierarchical nanoscale spacing concept based on chemical design can hopefully conduce to the development of biosensor and medical diagnosis. A hierarchical spacing strategy was applied to separate DNA fluorescent probes on CNCs and detect ion concentration linearly. The first-level spacing was to locate probes uniformly on CNCs, obtaining a wide linear range; and the second-level spacing was to isolate CNCs with polymer, obtaining an increased linear coefficient.
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Affiliation(s)
- Lin Gan
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China
| | - Ya Wang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China
| | - Meng Zhang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China
| | - Xuehuan Xia
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China
| | - Jin Huang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China.
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Shen S, Huang B, Guo X, Wang H. A dual-responsive fluorescent sensor for Hg2+ and thiols based on N-doped silicon quantum dots and its application in cell imaging. J Mater Chem B 2019; 7:7033-7041. [DOI: 10.1039/c9tb01502g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An on–off–on fluorescent sensor based on N-SiQD has the advantages of fast response time and high sensitivity to Hg2+ and GSH.
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Affiliation(s)
- Sansan Shen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Bohui Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Xiaofeng Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Hong Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
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11
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Two-dimensional nanomaterial based sensors for heavy metal ions. Mikrochim Acta 2018; 185:478. [DOI: 10.1007/s00604-018-3005-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 09/09/2018] [Indexed: 01/28/2023]
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12
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Xia N, Feng F, Liu C, Li R, Xiang W, Shi H, Gao L. The detection of mercury ion using DNA as sensors based on fluorescence resonance energy transfer. Talanta 2018; 192:500-507. [PMID: 30348424 DOI: 10.1016/j.talanta.2018.08.086] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 08/09/2018] [Accepted: 08/30/2018] [Indexed: 12/30/2022]
Abstract
Mercury ion (Hg2+) is a heavy metal that can cause serious water pollution. With the accumulation of large quantities in lakes, rivers, freshwater and aquatic life, Hg2+ can pass through the food chain, entering the human body and endangering health. Hg2+ detection has therefore become important thereby attracting extensive interests. Currently, several DNA-based sensors have been used for Hg2+ detection because they are not easy to degrade and are very stable. This paper summarizes the application of some DNA-based sensors based on fluorescence resonance energy transfer (FRET), analyzes their characteristic, and compares their sensitivity. Future perspectives and possible challenges in this area are also outlined.
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Affiliation(s)
- Ni Xia
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, PR China
| | - Fan Feng
- The fourth affiliated hospital of Jiangsu University, Zhenjiang 212001, PR China
| | - Cheng Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, PR China
| | - Raoqi Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, PR China
| | - Wenwen Xiang
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, PR China
| | - Haixia Shi
- P. E. Department of Zhenjiang University, Zhenjiang 212013, PR China
| | - Li Gao
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, PR China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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