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Wada M, Endo T, Hisamoto H, Sueyoshi K. Assessment of the structural change of DNA by binding with a small molecule based on capillary sieving electrophoresis. ANAL SCI 2024; 40:773-780. [PMID: 38413474 DOI: 10.1007/s44211-024-00524-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/24/2024] [Indexed: 02/29/2024]
Abstract
In this study, capillary sieving electrophoresis (CSE) using polymer solutions was used to evaluate the structural changes in nucleic acids upon complexation with small molecules. As the model target and nucleic acids, L-tyrosinamide (Tyr-Am) and its aptamer, which is a type of DNA specifically binding to Tyr-Am, were selected. CSE was conducted using a capillary filled with background solution (BGS) containing hydroxypropyl cellulose (HPC) as a sieving matrix. When Tyr-Am or tyrosine was added to the BGS in CSE, the ratio of mobility differences of the Tyr-Am-aptamer complex increased compared to that of the free aptamer without the addition of Tyr-Am. In contrast, when other amino acids or their analogs were added, results showed no apparent change or decreases in electrophoretic mobility. These results indicate that the proposed method can be applied to assess structural changes in nucleic acids that target small molecules.
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Affiliation(s)
- Masahide Wada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, Osaka, Japan.
| | - Tatsuro Endo
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, Osaka, Japan
| | - Hideaki Hisamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, Osaka, Japan
| | - Kenji Sueyoshi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, Osaka, Japan
- CREST, Japan Science and Technology Agency, Tokyo, Japan
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2
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Zhao W, Huang C, Guo X, Zhu Y, Li Y, Duan Y, Gao J. A Fluorescence Biosensor Based on Carbon Quantum Dots Prepared from Pomegranate Peel and T-Hg 2+-T Mismatch for Hg 2+ Detection. J Fluoresc 2024:10.1007/s10895-024-03645-5. [PMID: 38427224 DOI: 10.1007/s10895-024-03645-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
Mercury ions (Hg2+) can cause damage to human health, and thus, the study of the detection of Hg2+ is extraordinarily important in daily life. This work reported a fluorescence biosensor for the detection of Hg2+. The key point of this strategy was that the fluorescence of carbon quantum dots made from pomegranate peel (P-CQDs) was quenched by hemin, and restored after G-quadruplex binding with hemin. The presence of Hg2+ caused thymine (T)-rich DNA fragments to form T-Hg2+-T mismatches, and this change allowed the release of G-quadruplex. G-quadruplex could change the fluorescence of hemin/P-CQDs. P-CQDs exhibited excellent properties through characterization analysis, such as transmission electron microscope, X-ray photoelectron spectroscopy and Fourier transform infrared. This proposed fluorescence detection strategy established the linear ranges of Hg2+ from 1 nM to 50 nM. In conclusion, this simple biosensor had the advantages of strong sensitivity, high selectivity, and low cost for Hg2+ detection in environmental water samples.
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Affiliation(s)
- Weiqin Zhao
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China.
| | - Chun Huang
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Xiyu Guo
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Youyu Zhu
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Yuangang Li
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Yingfeng Duan
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Jie Gao
- Department of Stomatology, Xi'an International Medical Center Hospital Affiliated to Northwest University, Xi'an, 710061, P. R. China
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3
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Hu Z, Wang D, Zhou Q, Jie J, Su H. Complexed Photosensitizer of Hypericin with G-Quadruplex: Structure-Dependent Behavior. J Phys Chem B 2024; 128:576-584. [PMID: 38189153 DOI: 10.1021/acs.jpcb.3c07307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Despite the increased interest of visible-light-absorbing compound Hypericin (Hyp) in photodiagnosis, photocatalysis, and photodynamic therapy (PDT) applications, a major obstacle still exists; i.e., the photoactivity is diminished due to the facile aggregation of Hyp in aqueous environment that induces excited-state quenching. Herein, we explore the excited-state property of Hyp bound to the DNA G-quadruplex by combining multiple steady-state and time-resolved spectroscopy. We find that the aggregation-induced quenching effect can be successfully prevented by appropriate G-quadruplex binders that disperse Hyp into monomer. The binding of Hyp/G-quadruplex is selective, however, exhibiting a preferential binding toward parallel G-quadruplexes (c-kit2, C14B1, STAT3, S50, and PS2.M), over antiparallel or hybrid G-quadruplex (Tel22, TBA). The excited-state property of Hyp is highly related to the binding behavior, showing a consistent trend that the better the Hyp/G-quadruplex binding, the longer the triplet 3Hyp* lifetime and the higher the efficiency to produce 1O2. For Hyp/c-kit2, the major binding mode is 5'-end stacking, which offers protection from collisional quenching reactions and ensures a stable photocycle of 3Hyp*-O2 energy transfer forming 1O2, leading to the highest 1O2 quantum yield (0.67) with superior photostability. These findings open possibilities of developing Hyp/G-quadruplex complex as a biocompatible photosensitizer for PDT applications, etc.
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Affiliation(s)
- Zheng Hu
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Danfeng Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Qian Zhou
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Jialong Jie
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Hongmei Su
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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4
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Ding Z, Wei Y, Han F, Zhang X, Xu Z. DNA-Driven Photothermal Amplification Transducer for Highly Sensitive Visual Determination of Extracellular Vesicles. ACS Sens 2023; 8:2282-2289. [PMID: 37246908 DOI: 10.1021/acssensors.3c00247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Extracellular vesicles (EVs) are crucial focus of current biomedical research and future medical diagnosis. However, the requirement for specialized sophisticated instruments for quantitative readouts has limited the sensitive measurement of EVs to specialized laboratory settings, which in turn has limited bench-to-bedside translation of EV-based liquid biopsies. In this work, a straightforward temperature-output platform based on a DNA-driven photothermal amplification transducer was developed for the highly sensitive visual detection of EVs using a simple household thermometer. The EVs were specifically recognized by the antibody-aptamer sandwich immune-configuration that was constructed on portable microplates. Via a one-pot reaction, cutting-mediated exponential rolling circle amplification was initiated in situ on the EV surface, generating substantial G-quadruplex-DNA-hemin conjugates. Significant amplification in temperature was achieved from the effective photothermal conversion and regulation guided by the G-quadruplex-DNA-hemin conjugates in the 3,3',5,5'-tetramethylbenzidine-H2O2 system. Through obvious temperature outputs, the DNA-driven photothermal transducer enabled highly sensitive EV detection at close to the single-particle level and supported the highly specific identification of tumor-derived EVs directly in serum samples, without the requirement of any sophisticated instrument or labeling process. Benefiting from highly sensitive visual quantification, an easy-to-use readout, and portable detection, this photothermometric strategy is expected to be deliverable across professional on-site screening to home self-testing as EV-based liquid biopsies.
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Affiliation(s)
- Ziling Ding
- Research Center for Analytical Sciences, Northeastern University, Shenyang 110819, China
| | - Yunyun Wei
- Research Center for Analytical Sciences, Northeastern University, Shenyang 110819, China
| | - Fei Han
- Research Center for Analytical Sciences, Northeastern University, Shenyang 110819, China
| | - Xu Zhang
- Department of Oncology and Hematology, The Third Affiliated Hospital of Shenyang Medical College, Shenyang 110034, China
| | - Zhangrun Xu
- Research Center for Analytical Sciences, Northeastern University, Shenyang 110819, China
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Dong J, Qiu X, Huang M, Chen X, Li Y. G-quadruplex-hemin DNAzyme functionalized nanopipettes: Fabrication and sensing application. Talanta 2023; 257:124384. [PMID: 36812658 DOI: 10.1016/j.talanta.2023.124384] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/21/2023]
Abstract
Solid-nanopores/nanopipettes have the exquisite ability to reveal the changes in molecular volume due to the advantages of adjustable size, good rigidity and low noise. Herein, a new platform for sensing application was established based on G-quadruplex-hemin DNAzyme (GQH) functionalized gold-coated nanopipettes. In this method, GQH was immobilized on gold-coated nanopipette, which could be used as a catalyst for the reaction of H2O2 with 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) to promote the conversion of ABTS to ABTS+ ions inside gold-coated nanopipette, and the change of transmembrane ion current could be monitored in real time. At the optimal conditions, there was a correlation between the ion current and the concentration of H2O2 in a certain range, which could be used for the hydrogen peroxide sensing. The GQH immobilized nanopipette provides a useful platform to investigate enzymatic catalysis in confined environment, which can be used in electrocatalysis, sensing and fundamental electrochemistry.
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Affiliation(s)
- Jingyi Dong
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Xia Qiu
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Mimi Huang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Xiaohu Chen
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Yongxin Li
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China.
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6
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Mei Y, Yang S, Li C, Chen W, Liu R, Xu K. A signal-on fluorescent biosensor for mercury detection based on a cleavable phosphorothioate RNA fluorescent probe and metal-organic frameworks. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4418-4425. [PMID: 36300422 DOI: 10.1039/d2ay01476a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Mercury contamination is a major environmental concern. In this work, we used a cleavable phosphorothioate (PS) fluorescence probe quenched by UiO-66-NH2 to develop a "signal-on" fluorescent biosensor for Hg2+ detection. The probe was bound to UiO-66-NH2 through π-π stacking and hydrogen bonding, thereby extinguishing the fluorescence of the FAM-labelled probe. The PS site was cleaved in the presence of Hg2+, releasing the FAM group and significantly enhancing the fluorescence signal. The intensity of the fluorescence linearly rose as the Hg2+ concentration increased in the range of 1-100 nM (R2 = 0.994), and the limit of detection was 0.118 nM (S/N = 3). This biosensor demonstrated high selectivity for Hg2+ and was effectively applied to quantification of Hg2+ in various water samples with acceptable recovery rates. These results suggest that this practical, straightforward technology is a good option for monitoring mercury ions in the environment.
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Affiliation(s)
- Yang Mei
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, PR China.
- School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, PR China
| | - Si Yang
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, PR China.
- School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, PR China
| | - Chenxi Li
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, PR China.
| | - Wenliang Chen
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, PR China.
- School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, PR China
| | - Rong Liu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, PR China.
| | - Kexin Xu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, PR China.
- School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, PR China
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Baral T, Datta C, Das S. Cu Nanoparticle-Based Solution and Paper Strips for Colorimetric and Visual Detection of Heavy Metal Ions. ACS OMEGA 2022; 7:37279-37285. [PMID: 36312334 PMCID: PMC9609079 DOI: 10.1021/acsomega.2c03687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
The intrinsic toxicity of heavy metal ions to human health or other species calls for the need to develop an analytical tool for the easy and rapid detection of these ions based on inexpensive and stable nanomaterials. This article describes the potential utility of stable Cu nanoparticles (CuNPs) in the detection of toxic metal ions by solution and paper strip-based methods. For this, first, a dodecyl sulfate ion-stabilized CuNP (DS-CuNP) colloid was synthesized by a chemical reduction method. This was followed by treating the dispersion with heavy metal ions and monitoring the spectral change by spectrophotometric and colorimetric techniques. Among a host of metal ions, Hg2+, Cd2+, and Pb2+ have been found to significantly affect the surface plasmon resonance band of CuNPs by concomitantly altering the color of its solution. Notably, the brownish color of CuNP solution changed readily to milky white in the presence of Hg2+. Furthermore, the fabricated brownish-yellow test paper strips containing DS-CuNPs transformed to a prominent white color in the presence of a few drops of Hg2+ solution. This change in color of the paper strips could be visually detected by the naked eye. The experiments involving the detection of the various ions were carried out by optimizing the experimental conditions qualitatively as well as quantitatively. The limit of detection of the analytes (metal ions) has been found to be 10 μM. Routine analytical techniques like UV-vis spectroscopy, dynamic light scattering, transmission electron microscopy, and Fourier transform infrared spectroscopy formed part of the experiments.
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Affiliation(s)
- Trilochan Baral
- Department
of Chemistry, National Institute of Technology
Agartala, Tripura799046, India
| | - Chitraniva Datta
- Department
of Chemistry, National Institute of Technology
Agartala, Tripura799046, India
| | - Subhojit Das
- Department
of Chemistry, National Institute of Technology
Agartala, Tripura799046, India
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8
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Li L, Li H, Shi L, Shi L, Li T. Tin Porphyrin-Based Nanozymes with Unprecedented Superoxide Dismutase-Mimicking Activities. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:7272-7279. [PMID: 35638128 DOI: 10.1021/acs.langmuir.2c00778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
As the oxidative stress is related to human aging and many diseases, a diversity of antioxidant biomimetic enzymes to eliminate reactive oxygen species in vivo and maintain the redox balance has attracted intensive attention. Of particular interest are superoxide dismutase (SOD)-mimicking artificial enzymes that bear inherent characteristics of natural counterparts but overcome their deficiencies in thermal and acidic stability. Inspired by the metallized active center of natural SODs, here, we engineered different groups of metalloporphyrins and found that Sn-metallized porphyrins can act as novel SOD mimics, in which Sn-metallized meso-tetra(4-carboxyphenyl) porphine (Sn-TCPP) can more effectively catalyze the disproportionation of superoxide radical anions (•O2-) into hydrogen peroxide and oxygen. Especially, Sn-TCPP-based metal-organic frame nanozyme (Sn-PCN222) displays an unusually high catalytic activity that remarkably exceeds those of commonly used counterparts. Such unprecedented catalytic behaviors are proposed to depend on the Sn(IV)/Sn(II) transition at the center of Sn-TCPP. In addition, the metal-organic framework (MOF) nanozymes also display higher thermal and acidic stability than natural SODs. Interestingly, we find that Sn-complexed methylated tetra-(4-aminophenyl) porphyrin shows an aggregation-induced SOD activity in an acidic environment, whereas conventional SOD mimics do not function well in this case. Given these unique features, our reported Sn-porphyrin-based nanozymes would be potent alternatives for natural SODs to be widely used in clinical treatments of oxidative stress-related diseases.
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Affiliation(s)
- Ling Li
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Huan Li
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Lin Shi
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Lili Shi
- Department of Chemistry, Anhui University, 111 Jiulong Road, Hefei, Anhui 230601, China
| | - Tao Li
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
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9
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Simultaneous colorimetric and electrochemical detection of trace mercury (Hg 2+) using a portable and miniaturized aptasensor. Biosens Bioelectron 2022; 221:114419. [PMID: 35738991 DOI: 10.1016/j.bios.2022.114419] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 11/23/2022]
Abstract
We report a novel aptasensor for the simultaneous colorimetric and electrochemical detection of mercury (Hg2+). This device consists of a paper-based microfluidic component (μ-PAD) incorporated into a miniaturized three-electrode system fabricated through printed circuit board (PCB) technology. This biosensor is portable, rapid, versatile, and can detect Hg2+ down to 0.01 ppm based on 3σ of the blank/slope criteria. Moreover, it is highly selective against As2+, Cu2+, Zn2+, Pb2+, Cd2+, Mg2+, and Fe2+, reaching up to 13 times more of the input signal than the other heavy metals. The colorimetric detection mechanism uses aptamer functionalized polystyrene (PS)-AgNPs and Ps-AuNPs microparticles' specific aggregation. The Ps-AuNPs-based system allows qualitative detection (LOD 5 ppm) and stability over seven days (up to 97.59% signal retention). For the Ps-AgNPs-based system, the detection limit is 0.5 ppm with a linear range from 0.5 to 20 ppm (adjusted R2= 0.986) and stability over 30 days (up to 94.95% signal retention). The electrochemical component measures changes in charge transfer resistance upon target-aptamer hybridization using a [Ru (NH3)6]3+Cl3] redox probe. The latest component presents a linear range from 0.01 to 1 ppm (adjusted R2= 0.935) with a LOD of 0.01 ppm and performance stability over seven days (up to 102.52 ± 11.7 signal retention). This device offers a universal dual detection platform with multiplexing, multi-replication, quantitative color analysis, and minimization of false results. Furthermore, detection results in river samples showed recoveries up to 91.12% (RSD 0.85) and 105.61% (RSD 1.62) for the electrochemical and colorimetric components, respectively. The proposed system is highly selective with no false-positive or false-negative results in an overall wide linear range and can safeguard the accuracy of detection results in aptasensing platforms in general.
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10
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He Q, Liu Y, Li K, Wu Y, Wang T, Tan Y, Jiang T, Liu X, Liu Z. Deoxyribonucleic acid anchored on cell membranes for biomedical application. Biomater Sci 2021; 9:6691-6717. [PMID: 34494042 DOI: 10.1039/d1bm01057c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Engineering cellular membranes with functional molecules provides an attractive strategy to manipulate cellular behaviors and functionalities. Currently, synthetic deoxyribonucleic acid (DNA) has emerged as a promising molecular tool to engineer cellular membranes for biomedical applications due to its molecular recognition and programmable properties. In this review, we summarized the recent advances in anchoring DNA on the cellular membranes and their applications. The strategies for anchoring DNA on cell membranes were summarized. Then their applications, such as immune response activation, receptor oligomerization regulation, membrane structure mimicking, cell-surface biosensing, and construction of cell clusters, were listed. The DNA-enabled intelligent systems which were able to sense stimuli such as DNA strands, light, and metal ions were highlighted. Finally, insights regarding the remaining challenges and possible future directions were provided.
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Affiliation(s)
- Qunye He
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, P. R. China.
| | - Yanfei Liu
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, P. R. China
| | - Ke Li
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, P. R. China.
| | - Yuwei Wu
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, P. R. China.
| | - Ting Wang
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, P. R. China.
| | - Yifu Tan
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, P. R. China
| | - Ting Jiang
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, P. R. China
| | - Xiaoqin Liu
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, P. R. China
| | - Zhenbao Liu
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, P. R. China. .,Molecular Imaging Research Center of Central South University, Changsha 410008, Hunan, P. R. China
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11
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Development of a DNAzyme-based colorimetric biosensor assay for dual detection of Cd 2+ and Hg 2. Anal Bioanal Chem 2021; 413:7081-7091. [PMID: 34585255 DOI: 10.1007/s00216-021-03677-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 10/20/2022]
Abstract
A colorimetric biosensor assay has been developed for Cd2+ and Hg2+ detection based on Cd2+-dependent DNAzyme cleavage and Hg2+-binding-induced conformational switching of the G-quadruplex fragment. Two types of multifunctional magnetic beads (Cd-MBs and Hg-MBs) were synthesized by immobilizing two functionalized DNA sequences on magnetic beads via avidin-biotin chemistry. For Cd2+ detection, Cd-MBs are used as recognition probes, which are modified with a single phosphorothioate ribonucleobase (rA) substrate (PS substrate) and a Cd2+-specific DNAzyme (Cdzyme). In the presence of Cd2+, the PS substrate is cleaved by Cdzyme, and single-stranded DNA is released as the signal transduction sequence. After molecular assembly with the other two oligonucleotides, duplex DNA is produced, and it can be recognized and cleaved by FokI endonuclease. Thus, a signal output component consisting of a G-quadruplex fragment is released, which catalyzes the oxidation of ABTS with the addition of hemin and H2O2, inducing a remarkably amplified colorimetric signal. To rule out false-positive results and reduce interference signals, Hg-MBs modified with poly-T fragments were used as Hg2+ accumulation probes during the course of Cd2+ detection. On the other hand, Hg-MBs can perform their second function in Hg2+ detection by changing the catalytic activity of the G-quadruplex/hemin DNAzyme. In the presence of Hg2+, the G-quadruplex structure in Hg-MBs is disrupted upon Hg2+ binding. In the absence of Hg2+, an intensified color change can be observed by the naked eye for the formation of intact G-quadruplex/hemin DNAzymes. The biosensor assay exhibits excellent selectivity and high sensitivity. The detection limits for Cd2+ and Hg2+ are 1.9 nM and 19.5 nM, respectively. Moreover, the constructed sensors were used to detect environmental water samples, and the results indicate that the detection system is reliable and could be further used in environmental monitoring. The design strategy reported in this study could broadly extend the application of metal ion-specific DNAzyme-based biosensors.
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12
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Bi N, Zhang Y, Xi Y, Hu M, Song W, Xu J, Jia L. Colorimetric response of lysine-caped gold/silver alloy nanocomposites for mercury(II) ion detection. Colloids Surf B Biointerfaces 2021; 205:111846. [PMID: 34015734 DOI: 10.1016/j.colsurfb.2021.111846] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 04/14/2021] [Accepted: 05/11/2021] [Indexed: 01/25/2023]
Abstract
A simple and rapid colorimetric assay for determination of mercury(II) ion (Hg2+) in aqueous solutions was developed based on aggregation of gold/silver alloy nanocomposites (Au/Ag NCs). Au/Ag NCs were aggregated after the addition of Hg2+ and the positively charged amino acid, lysine. The different aggregation degrees of Au/Ag NCs is indicated by variations in the absorption spectra and accompanied by a color change from orange yellow to yellowish green. Under the optimal conditions, the shift of absorbance ratio (A650/A447) was proportional to Hg2+ concentrations in the range of 0.01-10.0 μM. The limit of detection is 4.8 nM. The proposed colorimetric assay was extremely specific for Hg2+ and other environmentally relevant metal ions did not interfere with the determination.
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Affiliation(s)
- Ning Bi
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, PR China
| | - Yinhong Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, PR China
| | - Yahua Xi
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, PR China
| | - Meihua Hu
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, PR China.
| | - Wei Song
- Chongqing Jianfeng Chemical Co., Ltd., Chongqing, 400000, PR China
| | - Jun Xu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, PR China
| | - Lei Jia
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, PR China
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13
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Trends in sensor development toward next-generation point-of-care testing for mercury. Biosens Bioelectron 2021; 183:113228. [PMID: 33862396 DOI: 10.1016/j.bios.2021.113228] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/02/2021] [Accepted: 04/03/2021] [Indexed: 01/01/2023]
Abstract
Mercury is one of the most common heavy metals and a major environmental pollutant that affects ecosystems. Since mercury and its compounds are toxic to humans, even at low concentrations, it is very important to monitor mercury contamination in water and foods. Although conventional mercury detection methods, including inductively coupled plasma mass spectrometry, atomic absorption spectroscopy, and gas chromatography-mass spectrometry, exhibit excellent sensitivity and accuracy, they require operation by an expert in a sophisticated and fully controlled laboratory environment. To overcome these limitations and realize point-of-care testing, many novel methods for direct sample analysis in the field have recently been developed by improving the speed and simplicity of detection. Commonly, these unconventional sensors rely on colorimetric, fluorescence, or electrochemical mechanisms to transduce signals from mercury. In the case of colorimetric and fluorescent sensors, benchtop methods have gradually evolved through technology convergence to give standalone platforms, such as paper-based assays and lab-on-a-chip systems, and portable measurement devices, such as smartphones. Electrochemical sensors that use screen-printed electrodes with carbon or metal nanomaterials or hybrid materials to improve sensitivity and stability also provide promising detection platforms. This review summarizes the current state of sensor platforms for the on-field detection of mercury with a focus on key features and recent developments. Furthermore, trends for next-generation mercury sensors are suggested based on a paradigm shift to the active integration of cutting-edge technologies, such as drones, systems based on artificial intelligence, machine learning, and three-dimensional printing, and high-quality smartphones.
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14
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Wu C, Gao G, Zhai K, Xu L, Zhang D. A visual Hg 2+ detection strategy based on distance as readout by G-quadruplex DNAzyme on microfluidic paper. Food Chem 2020; 331:127208. [PMID: 32554309 DOI: 10.1016/j.foodchem.2020.127208] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 05/27/2020] [Accepted: 05/31/2020] [Indexed: 12/26/2022]
Abstract
In this work, we have developed a simple, fast and visual Hg2+ detection strategy based on distance as readout on paper chip by the Hg2+-mediated formation of G-quadruplex-hemin DNAzymes. In the presence of Hg2+, the two oligonucleotides hybridize to form G-quadruplex DNA by T-Hg2+-T base pair, which was able to bind hemin to form the catalytically active G-quadruplex-hemin DNAzymes. Once DNAzymes were added to react with the precipitated 3,3,5,5-tetramethyl benzidine (TMB) immobilized on the sample area, a visible color band was produced, and the formed length was positively correlated with the concentration of Hg2+. This biosensor is capable of selectively detecting mercuric ions with good reproducibility and satisfactory dynamic range. The limit of detection was low to 0.23 nM. Therefore, this strategy not only provides a visual and quick screen of Hg2+, but also shows a promising future in monitoring analysis of other metal ions in POC diagnostic field.
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Affiliation(s)
- Chao Wu
- Suzhou Engineering and Technological Research Center of Natural Medicine and Functional Food, School of Biology and Food Engineering, Suzhou University, Suzhou 234000, China
| | - Guizhen Gao
- Suzhou Engineering and Technological Research Center of Natural Medicine and Functional Food, School of Biology and Food Engineering, Suzhou University, Suzhou 234000, China
| | - Kefeng Zhai
- Suzhou Engineering and Technological Research Center of Natural Medicine and Functional Food, School of Biology and Food Engineering, Suzhou University, Suzhou 234000, China
| | - Lisheng Xu
- Suzhou Engineering and Technological Research Center of Natural Medicine and Functional Food, School of Biology and Food Engineering, Suzhou University, Suzhou 234000, China
| | - Dagan Zhang
- Suzhou Engineering and Technological Research Center of Natural Medicine and Functional Food, School of Biology and Food Engineering, Suzhou University, Suzhou 234000, China; Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, Shenzhen University, Shenzhen 518060, China.
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15
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Li B, Qin L, Zhou J, Cai X, Lai G, Yu A. Hybridization chain reaction-enhanced enzyme biomineralization for ultrasensitive colorimetric biosensing of a protein biomarker. Analyst 2019; 144:5003-5009. [PMID: 31332403 DOI: 10.1039/c9an00898e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
By employment of an aptamer-initiated hybridization chain reaction (HCR) to enhance the enzyme biomineralization of cupric subcarbonate, this work develops a novel colorimetric biosensing method for protein analysis. The HCR product was used to specifically attach a large amount of urease-functionalized gold nanoparticles (Au NPs) for the preparation of a gold nanoprobe. After the sandwich biorecognition reactions, this nanoprobe could be quantitatively captured onto the antibody-functionalized magnetic bead (MB) platform. Then, numerous copper ions would be enriched onto the MB surface through the urease-induced biomineralization of cupric subcarbonate. Based on the complete release of Cu2+ ions for the sensitive copper chromogenic reaction, convenient colorimetric signal transduction was thus achieved for the quantitative analysis of the target analyte of the carcinoembryonic antigen. The HCR product provides a large number of biotin sites for the attachment of Au NP nanotags. The biomineralization reaction of high-content urease loaded onto Au NPs leads to highly efficient Cu2+ enrichment for signal amplification. So this method features excellent performance including a very wide linear range and a low detection limit down to 0.071 pg mL-1. In addition, the satisfactory results of real sample experiments reveal that this method possesses huge potential for practical applications.
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Affiliation(s)
- Bo Li
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry, Hubei Normal University, Huangshi 435002, PR China.
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16
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Lim JW, Kim TY, Choi SW, Woo MA. 3D-printed rolling circle amplification chip for on-site colorimetric detection of inorganic mercury in drinking water. Food Chem 2019; 300:125177. [DOI: 10.1016/j.foodchem.2019.125177] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 07/09/2019] [Accepted: 07/12/2019] [Indexed: 12/21/2022]
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17
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Fluorometric determination of mercury(II) by using thymine-thymine mismatches as recognition elements, toehold binding, and enzyme-assisted signal amplification. Mikrochim Acta 2019; 186:551. [PMID: 31324987 DOI: 10.1007/s00604-019-3683-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/07/2019] [Indexed: 10/26/2022]
Abstract
A highly sensitive fluorometric method is described for the determination of mercury(II) ions. It is based on (a) the use of a DNA probe containing thymine-thymine mismatches that are employed as Hg(II) recognition elements, (b) subsequent toehold binding, and (c) endocuclease-assisted signal amplification. Target recycling is triggered by exonuclease III. This produces a large amount of ssDNA (defined as primer). Then, the generated primer-initiated strand displacement reaction with the help of polymerase and nicking endonuclease releases the free fluorophore-labelled probe. Under excitation at 532 nm, the fluorescent probe displays emission with a peak at 582 nm. The sensitivity of this method is improved by introduction of nicking endonuclease. The working range of the assay extends from 20 pM to 10 nM, and the detection limit is as low as 6 pM of Hg(II). Graphical abstract Schematic presentation of the fluorometric method for determination of mercury(II). By using a special structure of thymine-thymine mismatches, target-induced toehold binding and enzyme-assisted signal amplification strategy were employed. This method is selective and good performance in real sample application.
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18
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Liu H, Wang R, Yu X, Shen F, Lan W, Haruehanroengra P, Yao Q, Zhang J, Chen Y, Li S, Wu B, Zheng L, Ma J, Lin J, Cao C, Li J, Sheng J, Gan J. High-resolution DNA quadruplex structure containing all the A-, G-, C-, T-tetrads. Nucleic Acids Res 2019; 46:11627-11638. [PMID: 30285239 PMCID: PMC6265469 DOI: 10.1093/nar/gky902] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 09/24/2018] [Indexed: 12/18/2022] Open
Abstract
DNA can form diverse structures, which predefine their physiological functions. Besides duplexes that carry the genetic information, quadruplexes are the most well-studied DNA structures. In addition to their important roles in recombination, replication, transcription and translation, DNA quadruplexes have also been applied as diagnostic aptamers and antidisease therapeutics. Herein we further expand the sequence and structure complexity of DNA quadruplex by presenting a high-resolution crystal structure of DNA1 (5′-AGAGAGATGGGTGCGTT-3′). This is the first quadruplex structure that contains all the internal A-, G-, C-, T-tetrads, A:T:A:T tetrads and bulged nucleotides in one single structure; as revealed by site-specific mutagenesis and biophysical studies, the central ATGGG motif plays important role in the quadruplex formation. Interestingly, our structure also provides great new insights into cation recognition, including the first-time reported Pb2+, by tetrad structures.
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Affiliation(s)
- Hehua Liu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Physiology and Biophysics, School of Life Sciences, Fudan University, Shanghai 200433, China.,State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Rui Wang
- Department of Chemistry and The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Xiang Yu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Physiology and Biophysics, School of Life Sciences, Fudan University, Shanghai 200433, China.,State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Fusheng Shen
- Department of Chemistry and The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Wenxian Lan
- State Key Laboratory of Bioorganic and Natural Product Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Shanghai 200032, China
| | - Phensinee Haruehanroengra
- Department of Chemistry and The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Qingqing Yao
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Jing Zhang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Physiology and Biophysics, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Yiqing Chen
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Physiology and Biophysics, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Suhua Li
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Physiology and Biophysics, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Baixing Wu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Lina Zheng
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Jinbiao Ma
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Jinzhong Lin
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Chunyang Cao
- State Key Laboratory of Bioorganic and Natural Product Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Shanghai 200032, China
| | - Jixi Li
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Physiology and Biophysics, School of Life Sciences, Fudan University, Shanghai 200433, China.,Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Jia Sheng
- Department of Chemistry and The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Jianhua Gan
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Department of Physiology and Biophysics, School of Life Sciences, Fudan University, Shanghai 200433, China
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19
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Chen M, Lin W, Hong L, Ji N, Zhao H. The Development and Lifetime Stability Improvement of Guanosine-Based Supramolecular Hydrogels through Optimized Structure. BIOMED RESEARCH INTERNATIONAL 2019; 2019:6258248. [PMID: 31312660 PMCID: PMC6595390 DOI: 10.1155/2019/6258248] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/12/2019] [Accepted: 04/24/2019] [Indexed: 02/05/2023]
Abstract
Guanosine is an important building block for supramolecular gels owing to the unique self-assembly property that results from the unique hydrogen bond acceptors and donor groups. Guanosine-derived supramolecular hydrogels have promise in the fields of drug delivery, targeted release, tissue engineering applications, etc. However, the property of poor longevity and the need for excess cations hinder the widespread applications of guanosine hydrogels. Although guanosine-derived supramolecular hydrogels have been reviewed previously by Dash et al., the structural framework of this review is different, as the modification of guanosine is described at the molecular level. In this review, we summarize the development and lifetime stability improvement of guanosine-based supramolecular hydrogels through optimized structure and elaborate on three aspects: sugar modification, base modification, and binary gels. Additionally, we introduce the concept and recent research progress of self-healing gels, providing inspiration for the development of guanosine-derived supramolecular hydrogels with longer lifespans, unique physicochemical properties, and biological activities.
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Affiliation(s)
- Miao Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Weimin Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Le Hong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Ning Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Hang Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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20
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Xia H, Li C, Chen H. Green preparation of CuI particles in dielectric barrier discharge for colorimetric determination of trace mercury in comparison with atomic fluorescence spectrometric determination. Microchem J 2019. [DOI: 10.1016/j.microc.2019.02.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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21
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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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22
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Yang S, Yang C, Huang D, Song L, Chen J, Yang Q. Recent Progress in Fluorescence Signal Design for DNA-Based Logic Circuits. Chemistry 2019; 25:5389-5405. [PMID: 30328639 DOI: 10.1002/chem.201804420] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/16/2018] [Indexed: 01/06/2023]
Abstract
DNA-based logic circuits, encoding algorithms in DNA and processing information, are pushing the frontiers of molecular computers forward, owing to DNA's advantages of stability, accessibility, manipulability, and especially inherent biological significance and potential medical application. In recent years, numerous logic functions, from arithmetic to nonarithmetic, have been realized based on DNA. However, DNA can barely provide a detectable signal by itself, so that the DNA-based circuits depend on extrinsic signal actuators. The signal strategy of carrying out a response is becoming one of the design focuses in DNA-based logic circuit construction. Although work on sequence and structure design for DNA-based circuits has been well reviewed, the strategy on signal production lacks comprehensive summary. In this review, we focused on the latest designs of fluorescent output for DNA-based logic circuits. Several basic strategies are summarized and a few designs for developing multi-output systems are provided. Finally, some current difficulties and possible opportunities were also discussed.
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Affiliation(s)
- Shu Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Chunrong Yang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Dan Huang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Lingbo Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Jianchi Chen
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Qianfan Yang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
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23
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Willner MR, Vikesland PJ. Nanomaterial enabled sensors for environmental contaminants. J Nanobiotechnology 2018; 16:95. [PMID: 30466465 PMCID: PMC6249933 DOI: 10.1186/s12951-018-0419-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 11/07/2018] [Indexed: 12/19/2022] Open
Abstract
The need and desire to understand the environment, especially the quality of one's local water and air, has continued to expand with the emergence of the digital age. The bottleneck in understanding the environment has switched from being able to store all of the data collected to collecting enough data on a broad range of contaminants of environmental concern. Nanomaterial enabled sensors represent a suite of technologies developed over the last 15 years for the highly specific and sensitive detection of environmental contaminants. With the promise of facile, low cost, field-deployable technology, the ability to quantitatively understand nature in a systematic way will soon be a reality. In this review, we first introduce nanosensor design before exploring the application of nanosensors for the detection of three classes of environmental contaminants: pesticides, heavy metals, and pathogens.
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Affiliation(s)
- Marjorie R. Willner
- Department of Civil and Environmental Engineering and the Institute for Critical Technology and Applied Science, Center for Sustainable Nanotechnology (VTSuN), Virginia Tech, Blacksburg, USA
| | - Peter J. Vikesland
- Department of Civil and Environmental Engineering and the Institute for Critical Technology and Applied Science, Center for Sustainable Nanotechnology (VTSuN), Virginia Tech, Blacksburg, USA
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24
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Label-free fluorescent and electrochemical biosensors based on defective G-quadruplexes. Biosens Bioelectron 2018; 118:1-8. [DOI: 10.1016/j.bios.2018.07.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 12/14/2022]
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25
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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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26
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Sensitive and rapid aptasensing of chloramphenicol by colorimetric signal transduction with a DNAzyme-functionalized gold nanoprobe. Food Chem 2018; 270:287-292. [PMID: 30174048 DOI: 10.1016/j.foodchem.2018.07.127] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 05/13/2018] [Accepted: 07/18/2018] [Indexed: 01/03/2023]
Abstract
By combination of the aptamer biorecognition with the colorimetric signal transduction of a DNAzyme-functionalized nanoprobe, a new biosensing method was developed for the rapid and sensitive detection of chloramphenicol (CAP). The nanoprobe was prepared through the functionalization of gold nanoparticles with the complementary oligonucleotide against aptamer and high-content hemin/G-quadruplex DNAzyme. When one-step incubating the nanoprobe and CAP at a constructed aptamer-magnetic bead (MB) biosensing platform, due to the competitive biorecognition reaction, the nanoprobes related with CAP amounts were quantitative captured onto the MB surface. Based on the catalytic reaction of the peroxidase-mimicking DNAzyme, a colored substance was produced for the colorimetric signal transduction of the method. Due to the great signal amplification of the nanoprobe, a very low detection limit down to 0.13 pg/mL was obtained. Considering the excellent performance of the aptasensing method and satisfactory results for milk sample experiments, it indicates good reliability for practical applications.
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27
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Bhattacharyya T, Saha P, Dash J. Guanosine-Derived Supramolecular Hydrogels: Recent Developments and Future Opportunities. ACS OMEGA 2018; 3:2230-2241. [PMID: 31458525 PMCID: PMC6641365 DOI: 10.1021/acsomega.7b02039] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/07/2018] [Indexed: 05/21/2023]
Abstract
Hydrogels are attractive materials for designing sensors, catalysts, scaffolds for tissue engineering, stimuli responsive soft materials, and controlled-release drug delivery systems. In recent years, self-assembly of guanosine and its derivatives has received immense interests for devising programmable supramolecular biomaterials including hydrogels. This perspective highlights some of the history and the recent developments of guanosine-based supramolecular hydrogels and their applications. Future prospects and scope of the guanosine-based hydrogels have also been discussed.
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Affiliation(s)
- Tanima Bhattacharyya
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Puja Saha
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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28
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Li J, Zhao J, Li S, Zhang L, Huang Y, Zhao S, Liu YM. Electrophoresis separation assisted G-quadruplex DNAzyme-based chemiluminescence signal amplification strategy on a microchip platform for highly sensitive detection of microRNA. Chem Commun (Camb) 2018; 52:12806-12809. [PMID: 27711307 DOI: 10.1039/c6cc06327f] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We have developed an electrophoresis separation assisted G-quadruplex DNAzyme-based chemiluminescence (CL) signal amplification strategy on a microchip platform for the detection of trace microRNA. This strategy exhibits high sensitivity and specificity for detection of target molecules.
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Affiliation(s)
- Jian Li
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China.
| | - Jingjin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China.
| | - Shuting Li
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China.
| | - Liangliang Zhang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China.
| | - Yong Huang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China.
| | - Shulin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China.
| | - Yi-Ming Liu
- Department of Chemistry and Biochemistry, Jackson State University, 1400 Lynch St, Jackson, MS 39217, USA
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29
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Sun Q, Yan F, Su B. Label-free electrochemical biosensors based on 3,3',5,5'-tetramethylbenzidine responsive isoporous silica-micelle membrane. Biosens Bioelectron 2018; 105:129-136. [PMID: 29412936 DOI: 10.1016/j.bios.2018.01.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 12/21/2017] [Accepted: 01/12/2018] [Indexed: 12/18/2022]
Abstract
3,3',5,5'-Tetramethylbenzidine (TMB) has been frequently used as an indicator in G-quadruplex/hemin DNAzyme (G4zyme)-based chemical and biochemical analysis, and its oxidation products are usually monitored by electrochemical or optical methods to quantify G4zyme formation-related analytes. Herein we report a simple electrochemical approach based on isoporous silica-micelle membrane (iSMM) to measure TMB, instead of its oxidation products, in G4zyme-based detection of specific analytes. The iSMM was grown on the indium tin oxide (ITO) electrode, which was composed of highly ordered, vertically oriented silica nanochannels and cylindrical micelles of cetyltrimethylammonium. The iSMM-ITO electrode was selectively responsive to neutral TMB but not its oxidation products, thanks to the sieving and pre-concentration capacity of micellar structures in terms of molecular charge and lipophilicity. In other words, only TMB could be extracted and enriched into micelles and subsequently oxidized at the underlying ITO electrode surface (namely the micelle/ITO interface), generating an amplified anodic current. Since the depletion of TMB was catalyzed by G4zymes formed in the presence of specific analyte, the decrease of this anodic current enabled the quantitative detection of this analyte. The current variation relative to its initial value ((j0-j)/j0), termed as the current attenuation ratio, showed the obvious dependence on the analyte concentration. As proof-of-concept experiments, four substances, i.e., potassium cation (K+), adenosine triphosphate, thrombin and nucleic acid, were detected in aqueous media and the analysis of K+ in pre-treated human serum was also performed.
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Affiliation(s)
- Qinqin Sun
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Fei Yan
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Bin Su
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China.
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30
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Fu X, Zhang H, Zhang J, Wen ST, Deng XC. A Highly Sensitive and Label-Free Microbead-Based ‘Turn-On’ Colorimetric Sensor for the Detection of Mercury(II) in Urine Using a Peroxidase-Like Split G-Quadruplex–Hemin DNAzyme. Aust J Chem 2018. [DOI: 10.1071/ch18302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A highly sensitive and label-free microbead-based ‘turn-on’ assay was developed for the detection of Hg2+ in urine based on the Hg2+-mediated formation of intermolecular split G-quadruplex–hemin DNAzymes. In the presence of Hg2+, T–T mismatches between the two partial cDNA strands were stabilized by a T–Hg2+–T base pair, and can cause the G-rich sequences of the two oligonucleotides to associate to form a split G-quadruplex which is able to bind hemin to form the catalytically active G-quadruplex–hemin DNAzyme. This microbead-based ‘turn-on’ process allows the detection of Hg2+ in urine samples at concentrations as low as 0.5 pM. The relative standard deviation and recovery are 1.2–3.9 and 98.7–103.2%, respectively. The remarkable sensitivity for Hg2+ is mainly attributed to the enhanced mass transport ability that is inherent in homogeneous microbead-based assays. Compared with previous developments of intermolecular split G-quardruplex–hemin DNAzymes for the homogeneous detection of Hg2+ (the limit of detection was 19nM), a signal enhancement of ~1000 times is obtained when such an assay is performed on the surface of microbeads.
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31
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Bhattacharyya T, Kumar YP, Dash J. Supramolecular Hydrogel Inspired from DNA Structures Mimics Peroxidase Activity. ACS Biomater Sci Eng 2017; 3:2358-2365. [DOI: 10.1021/acsbiomaterials.7b00563] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tanima Bhattacharyya
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Y. Pavan Kumar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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32
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Ultrasensitive colorimetric and fluorometric detection of Hg(II) based on the use of gold nanoparticles and a catalytic hairpin assembly. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2516-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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33
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Shahbazi N, Hosseinkhani S, Khajeh K, Ranjbar B. Structural and functional study of a simple, rapid, and label-free DNAzyme-based DNA biosensor for optimization activity. Biopolymers 2017; 107. [DOI: 10.1002/bip.23028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 03/23/2017] [Accepted: 04/26/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Narges Shahbazi
- Department of Nanobiotechnology, Faculty of Biological Sciences; Tarbiat Modares University; Tehran Iran
| | - Saman Hosseinkhani
- Department of Nanobiotechnology, Faculty of Biological Sciences; Tarbiat Modares University; Tehran Iran
- Department of Biochemistry, Faculty of Biological Sciences; Tarbiat Modares University; Tehran Iran
| | - Khosro Khajeh
- Department of Nanobiotechnology, Faculty of Biological Sciences; Tarbiat Modares University; Tehran Iran
- Department of Biochemistry, Faculty of Biological Sciences; Tarbiat Modares University; Tehran Iran
| | - Bijan Ranjbar
- Department of Nanobiotechnology, Faculty of Biological Sciences; Tarbiat Modares University; Tehran Iran
- Department of Biophysics, Faculty of Biological Sciences; Tarbiat Modares University; Tehran Iran
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34
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Zou M, Wang S. An Aptamer-based Self-Catalytic Colorimetric Assay for Carcinoembryonic Antigen. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11236] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mingjing Zou
- Central Laboratory; Heze Medical College; Heze 274030 China
| | - Shuyu Wang
- Clinical Laboratory; Heze City Hospital; Heze 274000 China
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35
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Bi N, Hu M, Xu J, Jia L. Colorimetric determination of mercury(II) based on the inhibition of the aggregation of gold nanorods coated with 6-mercaptopurine. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2427-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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36
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Organic-inorganic hybrid fluorescent sensor thin films of rhodamine B embedded Ag-SBA15 for selective recognition of Hg (II) ions in water. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.01.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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37
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Wu T, Ye M, Mao T, Lin F, Hu Y, Gan N, Shao Y. Human telomeric hybrid-2-over-hybrid-1 G-quadruplex targeting and a selective hypersaline-tolerant sensor using abasic site-engineered monomorphism. Anal Chim Acta 2017; 964:161-169. [DOI: 10.1016/j.aca.2017.01.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 01/13/2017] [Accepted: 01/21/2017] [Indexed: 02/02/2023]
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38
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A label-free colorimetric isothermal cascade amplification for the detection of disease-related nucleic acids based on double-hairpin molecular beacon. Anal Chim Acta 2017; 957:55-62. [DOI: 10.1016/j.aca.2016.12.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 12/10/2016] [Accepted: 12/16/2016] [Indexed: 11/20/2022]
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39
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Zhang Z, Liu B, Liu J. Molecular Imprinting for Substrate Selectivity and Enhanced Activity of Enzyme Mimics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1602730. [PMID: 27925383 DOI: 10.1002/smll.201602730] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/26/2016] [Indexed: 06/06/2023]
Abstract
Using molecular imprinting, a peroxidase-mimicking DNAzyme has achieved substrate specificity with enhanced activity in a nanoscale gel for three different substrates.
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Affiliation(s)
- Zijie Zhang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
| | - Biwu Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
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40
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Cheng N, Xu Y, Huang K, Chen Y, Yang Z, Luo Y, Xu W. One-step competitive lateral flow biosensor running on an independent quantification system for smart phones based in-situ detection of trace Hg(II) in tap water. Food Chem 2017; 214:169-175. [DOI: 10.1016/j.foodchem.2016.07.058] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 07/07/2016] [Accepted: 07/09/2016] [Indexed: 10/21/2022]
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41
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Bienzyme-based visual and spectrophotometric aptamer assay for quantitation of nanomolar levels of mercury(II). Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-2033-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Wang K, Fan D, Liu Y, Dong S. Cascaded multiple amplification strategy for ultrasensitive detection of HIV/HCV virus DNA. Biosens Bioelectron 2016; 87:116-121. [PMID: 27526400 DOI: 10.1016/j.bios.2016.08.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/31/2016] [Accepted: 08/05/2016] [Indexed: 12/31/2022]
Abstract
Ultrasensitive detection of HIV and HCV virus DNA is of great importance for early accurate diagnostics and therapy of HIV virus-infected patients. Herein, to our best knowledge, it is the first to use DNA cascaded multiple amplification strategy for ultrasensitive detection of HIV virus DNA with G-quadruplex-specific fluorescent or colorimetric probes as signal carriers. The developed strategy also exhibited universal applicability for HCV virus DNA detection. After reaction for about 4h, high sensitivity and specificity can be achieved at both fluorescent and colorimetric strategies (limit of detection (LOD) of 10 fM and 0.5pM were reached for fluorescent and colorimetric detection, respectively). And the single-based mismatched DNA even can be distinguished by naked eyes. It is believed that the cascaded multiple amplification strategy presents a huge advance in sensing platform and potential application in future clinical diagnosis.
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Affiliation(s)
- Kun Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Chinese Academy of Sciences, Beijing 100039, China; Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, PR China
| | - Daoqing Fan
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yaqing Liu
- Key Laboratory of Food Nutrition and Safety (Ministry of Education), Tianjin University of Science and Technology, Tianjin 300457, PR China.
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Chinese Academy of Sciences, Beijing 100039, China.
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43
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Priyadarshini E, Pradhan N, Pradhan AK, Pradhan P. Label free and high specific detection of mercury ions based on silver nano-liposome. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 163:127-133. [PMID: 27045785 DOI: 10.1016/j.saa.2016.03.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 03/21/2016] [Accepted: 03/23/2016] [Indexed: 06/05/2023]
Abstract
Herein, we report an eco-friendly, mild and one-pot approach for synthesis of silver nanoparticles via a lipopeptide biosurfactant - CHBS. The biosurfactant forms liposome vesicles when dispersed in an aqueous medium. The amino acid groups of the biosurfactant assists in the reduction of Ag(+) ions leading to the production of homogeneous silver nanoparticles, encapsulated within the liposome vesicle, as confirmed from TEM analysis. Rate of synthesis and size of particle were greatly dependent on pH and reaction temperature. Kinetic analysis suggests the involvement of an autocatalytic reaction and the observed rate constant (kobs) was found to decrease with temperature, suggesting faster reaction with increasing temperature. Furthermore, the silver nanoparticles served as excellent probes for highly selective and sensitive recognition of Hg(2+) ions. Interaction with Hg(2+) ions results in an immediate change in colour of nanoparticle solution form brownish red to milky white. With increasing Hg(2+) ions concentration, a gradual disappearance of SPR peak was observed. A linear relationship (A420/660) with an R(2) value of 0.97 was observed in the range of 20 to 100ppm Hg(2+) concentration. Hg(2+) ions are reduced to their elemental forms which thereby interact with the vesicles, leading to aggregation and precipitation of particles. The detection method avoids the need of functionalizing ligands and favours Hg(2+) detection in aqueous samples by visible range spectrophotometry and hence can be used for simple and rapid analysis.
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Affiliation(s)
- Eepsita Priyadarshini
- Academy of Scientific and Innovative Research, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | - Nilotpala Pradhan
- Academy of Scientific and Innovative Research, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India; Environment and Sustainability, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India.
| | - Arun K Pradhan
- Academy of Scientific and Innovative Research, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | - Pallavi Pradhan
- Environment and Sustainability, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
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44
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Sharma V, Saini AK, Mobin SM. Multicolour fluorescent carbon nanoparticle probes for live cell imaging and dual palladium and mercury sensors. J Mater Chem B 2016; 4:2466-2476. [PMID: 32263196 DOI: 10.1039/c6tb00238b] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon based nanomaterials are emerging as a desirable alternative to semiconducting quantum dots due to their unique optical properties and biocompatibility. The present study demonstrates the design and synthesis of highly fluorescent carbon nanoparticles (CNPs). The CNPs are investigated for their biocompatibility and henceforth successfully employed as promising multicolor bioimaging probes in A375 and DU145 cell lines. Furthermore, a "turn off" mode has been established for the detection of noble metal palladium (Pd2+) and heavy metal mercury (Hg2+) by quenching the fluorescence of CNPs. The CNP sensor responded to the detection of Pd2+ (5-100 μM) and Hg2+ (1-18 μM) in a wide range with the limit of detection (LOD) of 58 nM for Pd2+ and 100 nM for Hg2+. The CNP sensor was employed for the detection of Pd2+ and Hg2+ in real water samples and detection of leftover palladium catalysts in a model reaction system. Also, the CNPs were successfully employed as intracellular mercury and palladium sensors using confocal microscopy.
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Affiliation(s)
- Vinay Sharma
- Centre for Biosciences and Bio-Medical Engineering, Indian Institute of Technology Indore, Simrol, Indore-452020, India.
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45
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Li H, Wang S, Wu Z, Xu J, Shen G, Yu R. New function of exonuclease and highly sensitive label-free colorimetric DNA detection. Biosens Bioelectron 2016; 77:879-85. [DOI: 10.1016/j.bios.2015.10.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 10/09/2015] [Accepted: 10/12/2015] [Indexed: 02/03/2023]
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46
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Li L, Shang G, Qin W. Label-free polymerization amplified potentiometric sensing platform for radical reactions using polyion sensitive membrane electrodes as transducers. RSC Adv 2016. [DOI: 10.1039/c6ra04530h] [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
Based on the cascade amplification abilities of radical polymerization reactions, an amplified potentiometric sensing platform for radical reactions was developed.
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Affiliation(s)
- Long Li
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Yantai Institute of Coastal Zone Research (YIC)
- Chinese Academy of Sciences (CAS)
- Shandong Provincial Key Laboratory of Coastal Environmental Processes
- YICCAS
| | - Guoliang Shang
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264003
- P. R. China
| | - Wei Qin
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Yantai Institute of Coastal Zone Research (YIC)
- Chinese Academy of Sciences (CAS)
- Shandong Provincial Key Laboratory of Coastal Environmental Processes
- YICCAS
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47
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Ma L, Liu H, Wu G, Sun N, Meng L, Li Y, Liu Z, Diao A. A dual-channel detection of mercuric ions using a label free G-quadruplex-based DNAzyme molecule. Analyst 2016; 141:3997-4000. [DOI: 10.1039/c6an00795c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have constructed a ‘turn-off’ and label free bio-sensor using a DNAzyme molecule.
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Affiliation(s)
- Long Ma
- Biomolecular Sciences Research Complex
- EaStCHEM School of Chemistry
- University of St Andrews
- Fife KY16 9ST
- UK
| | - Haiyan Liu
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- School of Biotechnology
- Tianjin University of Science & Technology
- Tianjin 300457
| | - Guanrong Wu
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- School of Biotechnology
- Tianjin University of Science & Technology
- Tianjin 300457
| | - Nana Sun
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- School of Biotechnology
- Tianjin University of Science & Technology
- Tianjin 300457
| | - Lingpei Meng
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- School of Biotechnology
- Tianjin University of Science & Technology
- Tianjin 300457
| | - Yuyin Li
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- School of Biotechnology
- Tianjin University of Science & Technology
- Tianjin 300457
| | - Zhenxing Liu
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- School of Biotechnology
- Tianjin University of Science & Technology
- Tianjin 300457
| | - Aipo Diao
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- School of Biotechnology
- Tianjin University of Science & Technology
- Tianjin 300457
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48
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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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49
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Zhang L, Guo S, Zhu J, Zhou Z, Li T, Li J, Dong S, Wang E. Engineering DNA Three-Way Junction with Multifunctional Moieties: Sensing Platform for Bioanalysis. Anal Chem 2015; 87:11295-300. [PMID: 26509479 DOI: 10.1021/acs.analchem.5b02468] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Functionalization of DNA nanostructures is critical to the achievement of the application in biosensors. Herein, we demonstrate a novel DNA three-way junction (TWJ) with three functional moieties, which integrates the electrochemical, fluorescent, and colorimetric properties. Upon addition of external stimuli, including DNA, thrombin, and ATP, the specific interactions between targets and sensing elements could induce strand displacement reaction and conformation transformation, resulting in the integration of G-quadruplex/hemin complex as electrochemical probe, lighting up the fluorescence of DNA/Ag nanoclusters and enhancing the catalytic activity of DNAzyme to catalyze the H2O2-TMB system to generate colorimetric signal. Such a functional DNA nanostructure actually serves as a biosensing platform, showing high sensitivity and selectivity for DNA, thrombin, and ATP detection. Furthermore, We also show that this novel sensing platform can be utilized to detect three different kinds of targets independently and simultaneously. Our integrated concept provides a paradigm for exploring the potential of TWJs in analytical applications.
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Affiliation(s)
- Libing Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
| | - Shaojun Guo
- Materials Science and Engineering, College of Engineering, Peking University , Beijing 100871, China
| | - Jinbo Zhu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
| | - Zhixue Zhou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
| | - Tao Li
- Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Jing Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
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50
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Cui L, Wu J, Li M, Ju H. Highly sensitive electrochemical detection of mercury (II) via single ion-induced three-way junction of DNA. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2015.07.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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