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Jarczewska M, Sokal M, Olszewski M, Malinowska E. Studies on the Aptasensor Miniaturization for Electrochemical Detection of Lead Ions. BIOSENSORS 2024; 14:110. [PMID: 38392029 PMCID: PMC10886534 DOI: 10.3390/bios14020110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/11/2024] [Accepted: 02/17/2024] [Indexed: 02/24/2024]
Abstract
Lead poses severe effects on living organisms, and since Pb2+ ions tend to accumulate in different organs, it is crucial to monitor Pb2+ concentration in samples such as water and soil. One of the approaches is the utilization of biosensors combined with aptamer-based layers for the electrochemical detection of lead ions. Herein, we present the studies of applying miniaturized screen-printed transducers as solid surfaces to fabricate aptamer layers. As the research is the direct continuation of our previous studies regarding the use of gold disk electrodes, the working parameters of elaborated aptasensors were defined, including the range of linear response (10-100 nM), selectivity as well as stability, regeneration, and feasibility of application for the analysis of real samples. This was achieved using voltammetric techniques including cyclic and square-wave voltammetry in the presence of methylene blue redox indicator.
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Affiliation(s)
- Marta Jarczewska
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Marta Sokal
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Marcin Olszewski
- Chair of Drug and Cosmetics Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Koszykowa 75, 00-664 Warsaw, Poland;
| | - Elzbieta Malinowska
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
- Center for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 19 Poleczki, 02-822 Warsaw, Poland
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2
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Johnson RE, Murray MT, Roby DJ, Bycraft LJ, Churcher ZR, Yadav S, Johnson PE, Wetmore SD, Manderville RA. Unlocking Pb 2+ Sensing Potential in a DNA G-Quadruplex via Loop Modification with Fluorescent Chalcone Surrogates. ACS Sens 2023; 8:4756-4764. [PMID: 38063049 DOI: 10.1021/acssensors.3c01866] [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: 12/23/2023]
Abstract
The ability of guanine (G)-rich DNA to bind toxic lead (Pb2+) ions within a G-quadruplex (GQ) motif is a leading DNA biosensor strategy. A major analytical hurdle for GQ detection of Pb2+ is competitive GQ templating by potassium (K+) ions. We employ the on-strand DNA synthesis of internal fluorescent chalcone surrogates within the 15-mer thrombin binding aptamer (TBA15) to address this challenge. Replacement of thymidine at the 3-position (T3) within TBA15 with an indole-4-hydroxy-indanone (Ind4HI) chalcone strongly decreases K+-GQ stability while enhancing Pb2+-GQ stability to increase Pb2+ binding specificity. The new T3-Ind4HI probe exhibits a 15-fold increase in fluorescence intensity upon binding of Pb2+ by the modified TBA15 and can detect 6.4 nM Pb2+ in the presence of 10 mM K+. Thus, replacement of the T3 residue of TBA15 with the new Ind4HI probe modulates metal ion affinity by native TBA15 to solve the analytical challenge posed by K+ in real water samples for detecting Pb2+ to meet regulatory guidelines by using a GQ biosensor.
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Affiliation(s)
- Ryan E Johnson
- Departments of Chemistry and Toxicology, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Makay T Murray
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge T1K 3M4, Alberta, Canada
| | - Dylan J Roby
- Departments of Chemistry and Toxicology, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Lucas J Bycraft
- Departments of Chemistry and Toxicology, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Zachary R Churcher
- Department of Chemistry, York University, Toronto M3J 1P3, Ontario, Canada
| | - Saanya Yadav
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge T1K 3M4, Alberta, Canada
| | - Philip E Johnson
- Department of Chemistry, York University, Toronto M3J 1P3, Ontario, Canada
| | - Stacey D Wetmore
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge T1K 3M4, Alberta, Canada
| | - Richard A Manderville
- Departments of Chemistry and Toxicology, University of Guelph, Guelph N1G 2W1, Ontario, Canada
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3
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Screening of specific aptamers against chlorpromazine and construction of novel ratiometric fluorescent aptasensor based on metal-organic framework. Talanta 2023; 252:123850. [DOI: 10.1016/j.talanta.2022.123850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/08/2022] [Accepted: 08/12/2022] [Indexed: 11/18/2022]
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4
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Jia W, Jin X, Wu Y, Xie D, Yin W, Zhao B, Huang Z, Liu L, Yang Y, Cao T, Feng X, Chang S. Amplification of fluorescence polarization signal based on specific recognition of aptamers combined with quantum quenching effect for ultrasensitive and simple detection of PCB-77. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121341. [PMID: 35550993 DOI: 10.1016/j.saa.2022.121341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/19/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
Here, we report a novel aptasensor based on decahedral silver nanoparticles (Ag10NPs) enhanced fluorescence polarization (FP) for detecting PCB-77. Using aptamer modified Ag10NPs hybridized with DNA sequence labeled fluorescent group as an analytical probe, polychlorinated biphenyls (PCB-77) could be detected with high sensitivity and selectivity. The linear range of determination was 0.02 ng/L to 390 ng/L and the limit of detection was 5 pg/L. In addition, through the optimization of the experiment condition and signal probe DNA (pDNA), we found that the maximum FP signal could be generated when the distance between fluorescein and the surface of Ag10NPs was 3 nm. When the aptamer was immobilized on the surface of Ag10NPs could be strengthened the anti-interference performance of aptamer nanoprobe and further improved the detection ability. At the same time, we also compared the detection performance of the traditional FP signal enhancer streptavidin (SA) analysis system. The fluorescence polarization aptasensor could detect PCB-77 samples efficiently in complex environmental water, which shows a good application prospect.
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Affiliation(s)
- Wenchao Jia
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China.
| | - Xiangying Jin
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Yuhua Wu
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Danping Xie
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China.
| | - Wenhua Yin
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Bo Zhao
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Zhonghui Huang
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Lijun Liu
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Yanyan Yang
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Tonghui Cao
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Xidan Feng
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Sheng Chang
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Key Laboratory of Drinking Water Source Protection, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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A fast, sensitive, low-cost electrochemical paper-based chip for real-time simultaneous detection of cadmium (Ⅱ) and lead (Ⅱ) via aptamer. Talanta 2022; 247:123548. [DOI: 10.1016/j.talanta.2022.123548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/09/2022] [Accepted: 05/12/2022] [Indexed: 11/18/2022]
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Liang A, Zhang R, Huang X, Jiang Z. A new Fe/N doped carbon dot naocatalytic amplification-aptamer SERS/RRS/Abs trimode assay platform for ultratrace Pb 2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 272:121008. [PMID: 35184029 DOI: 10.1016/j.saa.2022.121008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/26/2022] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Nanocatalytic amplification of carbon dots is a new way to improve sensitivity. The preparation of the high catalytic activity and stable iron/nitrogen-doped carbon dot (CDBFe) sol and its application in aptamer (Apt) assay have not been reported yet. In this paper, a simple hydrothermal procedure for the preparation of CDBFe derived from Fe2+-2,2'-bipyridine complex has been developed. It is found that CDBFe has a strong catalytic effect on the indicator reaction of glyoxal (C2H2O2) reduction of HAuCl4 to produce gold nanoparticle (AuNP) probe with strong surface enhanced Raman scattering (SERS) at 1617 cm-1, resonance Rayleigh scattering (RRS) effect at 370 nm and absorption (Abs) at 550 nm. A rapid and sensitive CDBFe catalytic amplification Apt method for SERS/RRS/Abs trimode detecting ultratrace lead ions was established, based on the Apt reaction mediated the nanocatalytic indicator reaction. The results show that the SERS intensity and Pb(II) concentration have a good linear relationship in the range of 1.3-16 pM, and the detection limit is the lowest. In addition, Hg(II) and As(III) can also be measured by this naocatalytic amplification- Apt assay platform.
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Affiliation(s)
- Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Ran Zhang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Xiaofang Huang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China.
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8
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Curcumin Is an Iconic Ligand for Detecting Environmental Pollutants. Bioinorg Chem Appl 2022; 2022:9248988. [PMID: 35388298 PMCID: PMC8977348 DOI: 10.1155/2022/9248988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/08/2022] [Accepted: 02/19/2022] [Indexed: 12/11/2022] Open
Abstract
The rapid increase in industrial revolution and the consequent environmental contamination demands continuous monitoring and sensitive detection of the pollutants. Nanomaterial-based sensing system has proved to be proficient in sensing environmental pollutants. The development of novel ligands for enhancing the sensing efficiency of nanomaterials has always been a challenge. However, the amendment of nanostructure with molecular ligand increases the sensitivity, selectivity, and analytical performance of the resulting novel sensing platform. Organic ligands are capable of increasing the adsorption efficacy, optical properties, and electrochemical properties of nanomaterials by reducing or splitting of band gap. Curcumin (diferuloylmethane) is a natural organic ligand that exhibits inherent fluorescence and electrocatalytic property. Due to keto-enol tautomerism, it is capable of giving sensitive signals such as fluorescence, luminescence, ultraviolet absorption shifts, and electrochemical data. Curcumin probes were also reported to give enhanced meterological performances, such as low detection limit, repeatability, reproducibility, high selectivity, and high storage stability when used with nanosystem. Therefore, research on curcumin-modified nanomaterials in the detection of environmental pollution needs a special focus for prototype and product development to enable practical use. Hence, this article reviews the role of curcumin as a natural fluorophore in optical and electrochemical sensing of environmentally significant pollutants. This review clearly shows that curcumin is an ideal candidate for developing and validating nanomaterials-based sensors for the detection of environmental pollutants such as arsenic, lead, mercury, boron, cyanide, fluoride, nitrophenol, trinitrotoluene, and picric acid and toxic gases such as ammonia and hydrogen chloride. This review will afford references for future studies and enable researchers to translate the lab concepts into industrial products.
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Hu SQ, Ran SY. Single Molecular Chelation Dynamics Reveals That DNA Has a Stronger Affinity toward Lead(II) than Cadmium(II). J Phys Chem B 2022; 126:1876-1884. [PMID: 35196016 DOI: 10.1021/acs.jpcb.1c10487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lead ions can bind to DNA via nonelectrostatic interactions and hence alter its structure, which may be related to their adverse effects. The dynamics of Pb2+-DNA interaction has not been well understood. In this study, we report the monomolecular dynamics of the Pb2+-DNA interaction using a magnetic tweezers (MT) setup. We found that lead cations could induce DNA compaction at ionic strengths above 1 μM, which was also confirmed by morphology characterization. The chelation behavior of the Pb2+-DNA and the Cd2+-DNA complex solutions after adding EDTA were compared. The results showed that EDTA chelated with the bound metal ions on DNA and consequently led to restoring the DNA to its original length but with different restoration speeds for the two solutions. The fast binding dynamics and the slower chelation dynamics of the Pb2+ scenario compared to that of Cd2+ suggested that Pb2+ was more capable to induce DNA conformational change and that the Pb2+-DNA complex was more stable than the Cd2+-DNA complex. The stronger affinities for DNA bases and the inner binding of lead cations were two possible causes of the dynamics differences. Three agents, including EDTA, sodium gluconate, and SDBS, were used to remove the bound lead ions on DNA. It was shown that EDTA was the most efficient, and sodium gluconate could not fully restore DNA from its compact state. We concluded that both EDTA and SDBS were good candidates to restore the Pb2+-bound DNA to its original state.
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Affiliation(s)
- Shu-Qian Hu
- Department of Physics, Wenzhou University, Wenzhou 325035, China
| | - Shi-Yong Ran
- Department of Physics, Wenzhou University, Wenzhou 325035, China
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10
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Xiao X, Zhen S. Recent advances in fluorescence anisotropy/polarization signal amplification. RSC Adv 2022; 12:6364-6376. [PMID: 35424604 PMCID: PMC8982260 DOI: 10.1039/d2ra00058j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/16/2022] [Indexed: 12/25/2022] Open
Abstract
Fluorescence anisotropy/polarization is an attractive and versatile technique based on molecular rotation in biochemical/biophysical systems. Traditional fluorescence anisotropy/polarization assays showed relatively low sensitivity for molecule detection, because widespread molecular masses are too small to produce detectable changes in fluorescence anisotropy/polarization value. In this review, we discuss in detail how the potential of fluorescence anisotropy/polarization signal approach considerably expanded through the implementation of mass amplification, recycle the target amplification, fluorescence probes structure-switching amplification, resonance energy transfer amplification, and provide perspectives at future directions and applications.
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Affiliation(s)
- Xue Xiao
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, College of Chemistry and Environment, Southwest Minzu University 610041 Chengdu PR China
| | - Shujun Zhen
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University 400715 Chongqing PR China
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11
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An ultra-sensitive electrochemical aptasensor for simultaneous quantitative detection of Pb 2+ and Cd 2+ in fruit and vegetable. Food Chem 2022; 382:132173. [PMID: 35149468 DOI: 10.1016/j.foodchem.2022.132173] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/21/2021] [Accepted: 01/14/2022] [Indexed: 01/12/2023]
Abstract
An electrochemical aptasensor based on aptamer was designed for the first time to simultaneously detect Cd2+ and Pb2+ in fruit and vegetable. The double-stranded DNA including aptamers were immobilized on the electrode via Au-S bond. Due to the specific binding of aptamer and metal ions, the aptamers labelled with methylene blue or ferrocene were competed off the gold electrode, and the electrochemical signal was decreased. Under the optimal conditions, the electrochemical aptasensor showed linear response to Cd2+ and Pb2+ in the range of 0.1 to 1000 nmol/L, and the detection limits of Cd2+ and Pb2+ achieved 89.31 and 16.44 pmol/L (3σ), respectively. Excellent stability and reproducibility were exhibited with RSD 2.27% (Cd2+) and 3.61% (Pb2+). The digested fruit and vegetable were also tested, and the recoveries were in the range of 90.06% to 97.24%. Thus, this strategy held great potential in monitoring cadmium and lead pollution.
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Abstract
Owing to its great threat to human health and environment, Pb2+ pollution has been recognized as a major public problem by the World Health Organization (WHO). Many DNA aptamers have been utilized in the development of Pb2+-detection sensors, but the underlying mechanisms remain elusive. Here, we report three Pb2+-complexed structures of the thrombin binding aptamer (TBA). These high-resolution crystal structures showed that TBA forms intramolecular G-quadruplex and Pb2+ is bound by the two G-tetrads in the center. Compared to K+-stabilized G-quadruplexes, the coordinating distance between Pb2+ and the G-tetrads are much shorter. The T3T4 and T12T13 linkers play important roles in dimerization and crystallization of TBA, but they are changeable for Pb2+-binding. In combination with mutagenesis and CD spectra, the G8C mutant structure unraveled that the T7G8T9 linker of TBA is also variable. In addition to expansion of the Pb2+-binding aptamer sequences, our study also set up one great example for quick and rational development of other aptamers with similar or optimized binding activity.
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Zhang BY, Shi L, Ma XY, Liu L, Fu Y, Zhang XF. Advances in the Functional Nucleic Acid Biosensors for Detection of Lead Ions. Crit Rev Anal Chem 2021; 53:309-325. [PMID: 34304647 DOI: 10.1080/10408347.2021.1951648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Lead ions (Pb2+) are destructive to the natural environment and public health, so the efficient detection of Pb2+ is particularly important. Although the instrumental analysis methods have high accuracy, they require high cost and precise operation, which limits their wide application. Therefore, many strategies have been extensively studied for detecting Pb2+ by biosensors. Functional nucleic acids have become an efficient tool in this field. This review focuses on the recent biosensors of detecting Pb2+ based on functional nucleic acids from 2010 to 2020, in which DNAzyme, DNA G-quadruplex and aptamer will be introduced. The biosensors are divided into three categories that colorimetric, fluorometric and electrochemical biosensors according to the different reported signals. The action mechanism and detection effect of each biosensor are explained. Finally, the present situation of nucleic acid biosensor for the detection of Pb2+ is summarized and the future research direction is prospected.
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Affiliation(s)
- Bu-Yue Zhang
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Lei Shi
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Xiao-Ying Ma
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Lu Liu
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Yao Fu
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Xiu-Feng Zhang
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
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14
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Guo W, Zhang C, Ma T, Liu X, Chen Z, Li S, Deng Y. Advances in aptamer screening and aptasensors' detection of heavy metal ions. J Nanobiotechnology 2021; 19:166. [PMID: 34074287 PMCID: PMC8171055 DOI: 10.1186/s12951-021-00914-4] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023] Open
Abstract
Heavy metal pollution has become more and more serious with industrial development and resource exploitation. Because heavy metal ions are difficult to be biodegraded, they accumulate in the human body and cause serious threat to human health. However, the conventional methods to detect heavy metal ions are more strictly to the requirements by detection equipment, sample pretreatment, experimental environment, etc. Aptasensor has the advantages of strong specificity, high sensitivity and simple preparation to detect small molecules, which provides a new direction platform in the detection of heavy metal ions. This paper reviews the selection of aptamers as target for heavy metal ions since the 21th century and aptasensors application for detection of heavy metal ions that were reported in the past five years. Firstly, the selection methods for aptamers with high specificity and high affinity are introduced. Construction methods and research progress on sensor based aptamers as recognition element are also introduced systematically. Finally, the challenges and future opportunities of aptasensors in detecting heavy metal ions are discussed.
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Affiliation(s)
- Wenfei Guo
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, 412007 China
| | - Chuanxiang Zhang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, 412007 China
| | - Tingting Ma
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, 412007 China
| | - Xueying Liu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, 412007 China
| | - Zhu Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, 412007 China
| | - Song Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, 412007 China
| | - Yan Deng
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, 412007 China
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15
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Berlina AN, Sotnikov DV, Komova NS, Zherdev AV, Dzantiev BB. Limitations for colorimetric aggregation assay of metal ions and ways of their overcoming. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:250-257. [PMID: 33355543 DOI: 10.1039/d0ay02068k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The development of analytical methods for the determination of metal ions in water is one of the priority tasks for efficient environmental monitoring. The use of modified gold nanoparticles and the colorimetric detection of their aggregation initiated by ions binding with specific receptors on the nanoparticle surface has high potential for simple testing. However, the limits of this approach and the parameters determining the assay sensitivity are not clear, and the possibilities of different assay formats are estimated only empirically. We have proposed a mathematical description of the aggregation processes in the assay and have estimated the detection limits of an aptamer-based assay of Pb2+ ions theoretically and experimentally. In the studied assay, gold nanoparticles modified with G,T-enriched aptamer were used, and their aggregation caused by the interaction with Pb2+ ions was controlled via a color change. The experimentally determined limit of Pb2+ detection was 700 ppb, which was in good agreement with theoretical calculations. An examination of the model showed that the limiting parameter of the assay is the binding constant of the aptamer-Pb2+ ion interaction. To overcome this limitation without searching for alternate receptors, two methods have been proposed, namely additional aggregation-causing components or centrifugation. These approaches lowered the detection limit to 150 ppb and even to 0.4 ppb. The second value accords with regulatory demands for the permissible levels of water source contamination, and the corresponding approach has significant competitive potential due to its rapidity, simple implementation, and the visual assessment of the assay results.
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Affiliation(s)
- Anna N Berlina
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, Moscow 119071, Russia.
| | - Dmitry V Sotnikov
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, Moscow 119071, Russia.
| | - Nadezhda S Komova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, Moscow 119071, Russia.
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, Moscow 119071, Russia.
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, Moscow 119071, Russia.
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16
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Otuboah FY, Zheng J, Chen C, Wang Z, Wan X, Sun L. High-throughput and uniform large field-of-view multichannel fluorescence microscopy with super-thin dichroism for a dPCR gene chip. APPLIED OPTICS 2020; 59:10768-10776. [PMID: 33361897 DOI: 10.1364/ao.403495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/26/2020] [Indexed: 06/12/2023]
Abstract
With the rapid development of digital precision medicine, the digital polymerase chain reaction (dPCR) deoxyribonucleic acid (DNA) gene chip integrates more channels with smaller size and larger area, which leads to a higher technical requirement for commercial optical fluorescence microscopy. The multitime image splicing method is widely used for DNA detection. However, it consumes time and has visible seamless image results. This work has demonstrated the design and fabrication of a three channel reversed and reduced fluorescence microscopic imaging system with high-resolution and large field of view for one-time imaging. We introduced the super ultra-thin dichroic mirror into the space between the objective lens and the gene chip to achieve a uniform illumination and a strong signal for the large area gene chip. The fabricated new fluorescence microscopy can take a one-time imaging for the 28×18mm dPCR gene chip with more than 20,000 multi micro-droplets within FAM, HEX, and ROX fluorescence channels. The optical system was designed with a numerical aperture (NA) of 0.106. Modulation transfer function (MTF) is higher than 0.675 at 70 lp/mm, and the function resolution capability is 10 µm with the whole magnification of -0.65times. The fly's eye lens-based illumination system was tested with a uniform output of over 90% in the whole ϕ34.7mm chip area. The design was tested, and the experimental results showed that this new system provides a fast, efficient, and professional optical imaging method for detection of the new emerged digital PCR gene chip, which has larger area and more channels.
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17
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A thiamonomethinecyanine probe for detection of Pb2+ based on transformation from dimer to monomer by aptamer. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01389-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Wu Y, Shi Y, Deng S, Wu C, Deng R, He G, Zhou M, Zhong K, Gao H. Metal-induced G-quadruplex polymorphism for ratiometric and label-free detection of lead pollution in tea. Food Chem 2020; 343:128425. [PMID: 33127221 DOI: 10.1016/j.foodchem.2020.128425] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/15/2020] [Accepted: 10/15/2020] [Indexed: 02/08/2023]
Abstract
Lead pollution are critical concerns for food safety and human health. Herein, a ratiometric metal-induced G-quadruplex polymorphism was introduced to construct aptamer probes, enabling label-free and ratiometric detection of lead in tea, thus is promising for on-site detection of lead pollution. The key feature of the aptamer probe is the synergistic utilization of the dual-wavelength fluorescent signal outputs from a G-quadruplex specific dye and a DNA intercalation dye under a single-wavelength excitation, leading to a more stable and reliable recognition of Pb2+ than that of analyses based on single fluorescent reporter. The aptamer probe allowed to a mix-and-read, rapid, cost-effective detection of Pb2+ with high specificity and accuracy. Pb2+ analysis in tap water and tea exhibited good performance with recovery rates of 92.3%-109.0%. The adoption of ratiometric metal-induced G-quadruplex polymorphism would be a compelling design strategy for constructing robust aptasensor, facilitating the translation of aptamer for food safety control.
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Affiliation(s)
- Yanping Wu
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Yachen Shi
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Sha Deng
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Chengyong Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan 610041, China
| | - Ruijie Deng
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China.
| | - Guiping He
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Mi Zhou
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Kai Zhong
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Hong Gao
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China.
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19
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Aptamer binding assays and molecular interaction studies using fluorescence anisotropy - A review. Anal Chim Acta 2020; 1125:267-278. [PMID: 32674773 DOI: 10.1016/j.aca.2020.05.061] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/16/2020] [Accepted: 05/23/2020] [Indexed: 12/26/2022]
Abstract
Binding of nucleic acid aptamers to specific targets and detection with fluorescence anisotropy (FA) or fluorescence polarization (FP) take advantage of the complementary features of aptamers and the fluorescence techniques. We review recent advances in affinity binding assays using aptamers and FA/FP, with an emphasis on studies of molecular interactions and identification of binding sites. Aptamers provide several benefits, including the ease of labelling fluorophores on specific sites, binding-induced changes in aptamer structures, hybridization of the aptamers to complementary sequences, changes in molecular volume upon binding of the aptamer to its target, and adsorption of aptamers onto nanomaterials. Some of these benefits have been utilized for FA/FP assays. Once the aptamer binds to its target, the resulting changes in molecular volume (size), structure, local rotation of the fluorophore, and/or the fluorescence lifetime influence changes to the FA/FP values. Measurements of these fluorescence anisotropy/polarization changes have provided insights into the molecular interactions, such as the binding affinity and the site of binding. Studies of molecular interactions conducted in homogeneous solutions, as well as those with separations, e.g., capillary electrophoresis, have been summarized in this review. Studies on mapping the position of binding in aptamers at the single nucleotide level have demonstrated a unique benefit of the FA/FP techniques and pointed to an exciting direction for future research.
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20
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Zhang D, Wang H. Fluorescence Anisotropy Reduction of An Allosteric G-Rich Oligonucleotide for Specific Silver Ion and Cysteine Detection Based on the G-Ag +-G Base Pair. Anal Chem 2019; 91:14538-14544. [PMID: 31650829 DOI: 10.1021/acs.analchem.9b03556] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Silver is a common heavy metal, and the detection of silver ion (Ag+) is of great importance because of its wide application and hazardous effect on the environment and human health. However, it is a great challenge to produce a large fluorescence anisotropy (FA) change for small molecules (e.g, Ag+). Herein, we describe a novel fluorescence anisotropy reduction approach for the sensitive and specific detection of Ag+. The feasibility of this method is demonstrated through screening a number of guanine-rich oligonucleotide probes. By selectively labeling the oligonucleotides with a single fluorophore tetramethylrhodamine (TMR), the reduction in FA response is associated with the conformation change from the unfolded to a hairpin-like folded structure by inducing formation of the intermolecular G-Ag+-G base pair, which diminishes the interaction between guanine and TMR by photoinduced electron transfer (PET). The change in FA allows the selective detection of Ag+ at a concentration as low as 0.5 nM with a dynamic range from 2.0 to 100 nM. The interference from the other 14 metal ions with a 100-fold even to a 1000-fold excess amount is negligible. This simple and cost-effective probe was further explored to determine cysteine (Cys) based on competing with a guanine-rich oligonucelotide for Ag+-binding.
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Affiliation(s)
- Dapeng Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
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21
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Wagh AA, Fernandes M. 2′‐5′‐Isomerically Linked Thrombin‐Binding Aptamer (isoTBA) Forms a Stable Unimolecular Parallel G‐Quadruplex in the Presence of Sr
2+
Ions. ChemistrySelect 2019. [DOI: 10.1002/slct.201902005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Atish A. Wagh
- Organic Chemistry DivisionCSIR-National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Moneesha Fernandes
- Organic Chemistry DivisionCSIR-National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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22
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Li YK, Li WT, Liu X, Yang T, Chen ML, Wang JH. Functionalized magnetic composites based on the aptamer serve as novel bio-adsorbent for the separation and preconcentration of trace lead. Talanta 2019; 203:210-219. [PMID: 31202328 DOI: 10.1016/j.talanta.2019.05.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 05/11/2019] [Accepted: 05/16/2019] [Indexed: 10/26/2022]
Abstract
A magnetic functionalized bio-sorbent based on aptamer was designed for the selective separation of ultra-trace Pb2+, shortly termed as Fe3O4@Au@DNA. Pb(II) specific aptamer attached to the magnetic solid substrate served as affinity probe to capture and separate trace lead. Oligonucleotides with a polyA block were employed for the immobilization on the surface of AuNPs, with adenine sequences (polyA) as the part of effective anchoring block. The prepared Fe3O4@Au@DNA composites were characterized by FT-IR, SEM and XPS. The binding of lead on Fe3O4@Au@DNA composites surface was pH-dependent, the adsorption follows Langmuir model, and the adsorption dynamic fits the pseudo-second-order kinetics model. Procedure for lead separation and preconcentration was explored and combined with detection of graphite furnace atomic absorption spectrometry (GFAAS). Under the optimum condition, an enrichment factor of 17.73 was obtained with a sample volume of 1.0 mL. The limit of detection (LOD) was 57 ng L-1 along with a relative standard deviation (RSD) of 2.06 (n = 9). The procedure was further validated by a certified reference material GBW08608 and several environmental and blood samples.
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Affiliation(s)
- Yi-Kun Li
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Wei-Tao Li
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Xun Liu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Ting Yang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Ming-Li Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China.
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China.
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23
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Fluorescence polarization assays for chemical contaminants in food and environmental analyses. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.013] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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24
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Berlina AN, Zherdev AV, Dzantiev BB. Progress in rapid optical assays for heavy metal ions based on the use of nanoparticles and receptor molecules. Mikrochim Acta 2019; 186:172. [PMID: 30767144 DOI: 10.1007/s00604-018-3168-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 12/09/2018] [Indexed: 02/06/2023]
Abstract
This review (with 230 refs.) covers recent progress in rapid optical assays for heavy metals (primarily lead and mercury as the most relevant) based on the use of nanoparticles and receptor molecules. An introduction surveys the importance, regulatory demands (such as maximum permissible concentrations) and potential and limitations of various existing methods. This is followed by a general discussion on the use of nanoparticles in optical assays of heavy metals (including properties, basic mechanisms of signal generation). The next sections cover methods for the functionalization of nanoparticles with (a) sulfur-containing compounds (used for modification of nanoparticles or added to the reaction medium), (b) nitrogen-containing compounds (such as amino acids, polypeptides, and heterocyclic molecules), and (c) oxygen-containing species (such as hydroxy and carbonyl compounds). This is continued by a specific description of specific assays based on the use of aptamers as receptors, on the use of deoxyribozymes as synthetic reaction catalysts, of G-quadruplex aptamers, of aptamers in logic gate-type of assays of linear (unstructured) aptamers ("hairpins"), and on the use of aptamers in lateral flow assays. A next section covers assays based on the employment of antibodies as receptors (used in the immunoassay development). The properties of various nanoparticles and their applicability in optical assays are also discussed in some detail. Final sections discuss the selectivity of assays, potential interferences by other cations, methods for their elimination, and also matrix effects and approaches for sample pretreatment. A concluding section discusses current challenges and future trends. Analysis based on enzyme inhibition assay is not treated here but enzyme-like action of some receptor molecules such as DNAzymes is discussed. Graphical abstract Schematic presentation of main principles of application of various nanoparticles with receptor molecules (S-, N-, O-containing, heterocyclic compounds, proteins, antibody, aptamers) for heavy metals ions detection. The included methods cover optical assays with description of mechanisms of interactions and signal generation.
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Affiliation(s)
- Anna N Berlina
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, Moscow, 119071, Russia
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, Moscow, 119071, Russia
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, Moscow, 119071, Russia.
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25
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Nucleic acid aptamers improving fluorescence anisotropy and fluorescence polarization assays for small molecules. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.11.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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26
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Ding J, Liu Y, Zhang D, Yu M, Zhan X, Zhang D, Zhou P. An electrochemical aptasensor based on gold@polypyrrole composites for detection of lead ions. Mikrochim Acta 2018; 185:545. [PMID: 30426282 DOI: 10.1007/s00604-018-3068-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 10/20/2018] [Indexed: 10/27/2022]
Abstract
This work describes an electrochemical aptasensor for determination of lead ions (Pb2+). Composites prepared from gold nanoparticles and polypyrrole (Au@PPy) with good electrical conductivity were used to modify the surface of a screen printed carbon electrode for amplifying the current signal. Single strand DNA was immobilized on the electrode and binds lead(II) as confirmed by cyclic voltammetry at voltage of -0.2 V~0.6 V. Differential pulse voltammetry, measured at 0.10 V (vs. Ag/AgCl), was used to monitor the interaction between aptamer and lead(II) using hexacyanoferrate as an electrochemical probe. In the presence of Pb2+, the aptamer forms a G-quadruplex, and the peak current is increased. By this method, Pb2+ can be detected in the range of 0.5-10 nM with a low detection limit of 0.36 nM. The aptasensor was successfully applied to the determination of Pb2+ in polluted soil and baby's nail. The method showed outstanding sensitivity and selectivity in detecting Pb2+, therefore is considered to have great potential in developing an environmental monitoring platform. Graphical abstract Schematic illustration of Pb2+ detection procedure and principle using an electrochemical aptasensor.
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Affiliation(s)
- Jina Ding
- School of Agriculture and Biology & Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiaotong University, Shanghai, 200240, People's Republic of China
| | - Yang Liu
- School of Agriculture and Biology & Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiaotong University, Shanghai, 200240, People's Republic of China
| | - Dongwei Zhang
- School of Agriculture and Biology & Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiaotong University, Shanghai, 200240, People's Republic of China
| | - Minglei Yu
- School of Agriculture and Biology & Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiaotong University, Shanghai, 200240, People's Republic of China
| | - Xuejia Zhan
- School of Agriculture and Biology & Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiaotong University, Shanghai, 200240, People's Republic of China
| | - Dan Zhang
- School of Agriculture and Biology & Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiaotong University, Shanghai, 200240, People's Republic of China.
| | - Pei Zhou
- School of Agriculture and Biology & Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiaotong University, Shanghai, 200240, People's Republic of China.
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27
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Protamine-stabilized gold nanoclusters as a fluorescent nanoprobe for lead(II) via Pb(II)-Au(I) interaction. Mikrochim Acta 2018; 185:483. [PMID: 30269212 DOI: 10.1007/s00604-018-3019-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/23/2018] [Indexed: 12/31/2022]
Abstract
The authors report on a one-pot approach for synthesizing highly fluorescent protamine-stabilized gold nanoclusters. These are shown to be a viable nanoprobe for selective and sensitive fluorometric determination of lead(II) via quenching of fluorescence via Pb(II)-Au(I) interaction. Under optimized conditions, fluorescence measured at excitation/emission peaks of 300/599 nm drops in the 80 nM-15 μM lead(II) concentration range. The detection limit is 24 nM, and relative standard deviations (for n = 11) at concentrations of 0.10, 4.0 and 15 μM are 1.6, 2.5 and 1.9%, respectively. The relative recoveries of added lead(II) in the water samples ranged from 97.9 ± 2.29% to 101.2 ± 1.83%. Graphical abstract Lead(II) ions are found to be able to selectively and sensitively quench the fluorescence of the protamine-gold nanoclusters (PRT-AuNCs). Thereby, an inexpensive, selective and sensitive lead(II) assay was established.
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28
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Khoshbin Z, Housaindokht MR, Verdian A, Bozorgmehr MR. Simultaneous detection and determination of mercury (II) and lead (II) ions through the achievement of novel functional nucleic acid-based biosensors. Biosens Bioelectron 2018; 116:130-147. [PMID: 29879539 DOI: 10.1016/j.bios.2018.05.051] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/26/2018] [Accepted: 05/28/2018] [Indexed: 02/07/2023]
Abstract
The serious threats of mercury (Hg2+) and lead (Pb2+) ions for the public health makes it important to achieve the detection methods of the ions with high affinity and specificity. Metal ions usually coexist in some environment and foodstuff or clinical samples. Therefore, it is very necessary to develop a fast and simple method for simultaneous monitoring the amount of metal ions, especially when Hg2+ and Pb2+ coexist. DNAzyme-based biosensors and aptasensors have been highly regarded for this purpose as two main groups of the functional nucleic acid (FNA)-based biosensors. In this review, we summarize the recent achievements of functional nucleic acid-based biosensors for the simultaneous detection of Hg2+ and Pb2+ ions in two main optical and electrochemical groups. The tremendous interest in utilizing the various nanomaterials is also highlighted in the fabrication of the FNA-based biosensors. Finally, some results are presented based on the advantages and disadvantages of the studied FNA-based biosensors to compare their validation.
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Affiliation(s)
- Zahra Khoshbin
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Asma Verdian
- Department of Food Safety and Quality Control, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran
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29
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Perrier S, Guieu V, Chovelon B, Ravelet C, Peyrin E. Panoply of Fluorescence Polarization/Anisotropy Signaling Mechanisms for Functional Nucleic Acid-Based Sensing Platforms. Anal Chem 2018. [PMID: 29513518 DOI: 10.1021/acs.analchem.7b04593] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Fluorescence polarization/anisotropy is a very popular technique that is widely used in homogeneous-phase immunoassays for the small molecule quantification. In the present Feature, we discuss how the potential of this signaling approach considerably expanded during the last 2 decades through the implementation of a myriad of original transducing strategies that use functional nucleic acid recognition elements as a promising alternative to antibodies.
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Affiliation(s)
- Sandrine Perrier
- University Grenoble Alpes , DPM UMR 5063, F-38041 Grenoble , France.,CNRS , DPM UMR 5063, F-38041 Grenoble , France
| | - Valérie Guieu
- University Grenoble Alpes , DPM UMR 5063, F-38041 Grenoble , France.,CNRS , DPM UMR 5063, F-38041 Grenoble , France
| | - Benoit Chovelon
- University Grenoble Alpes , DPM UMR 5063, F-38041 Grenoble , France.,CNRS , DPM UMR 5063, F-38041 Grenoble , France.,Département de Biochimie, Toxicologie et Pharmacologie , CHU de Grenoble Site Nord-Institut de Biologie et de Pathologie , F-38041 Grenoble , France
| | - Corinne Ravelet
- University Grenoble Alpes , DPM UMR 5063, F-38041 Grenoble , France.,CNRS , DPM UMR 5063, F-38041 Grenoble , France
| | - Eric Peyrin
- University Grenoble Alpes , DPM UMR 5063, F-38041 Grenoble , France.,CNRS , DPM UMR 5063, F-38041 Grenoble , France
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30
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Competitive horseradish peroxidase-linked aptamer assay for sensitive detection of Aflatoxin B1. Talanta 2017; 179:344-349. [PMID: 29310242 DOI: 10.1016/j.talanta.2017.11.048] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 11/24/2022]
Abstract
Aflatoxin B1 (AFB1) is one of highly toxic mycotoxins and a known human carcinogen. The frequent contamination of AFB1 in food products and large health risk of AFB1 have raised global concerns. Sensitive detection of AFB1 is of vital importance and highly demanded. Herein, we reported a competitive horseradish peroxidase (HRP)-linked aptamer assay for AFB1, combining the advantages of aptamer for affinity binding and enzyme label for signal amplification. In this assay, free AFB1 in solution competed with a covalent conjugate of bovine serum albumin-AFB1 (BSA-AFB1) coated on the wells of microplate in binding to the HRP-labeled aptamer probe. HRP attached on BSA-AFB1 in the wells catalyzed the conversion of substrates into products, allowing the final detection of AFB1 through measurement of the generated products. When TMB (3,3',5,5'-tetramethylbenzidine dihydrochloride) was used as substrate, absorbance analysis of the product of enzyme reaction enabled the detection of AFB1 at 0.2nM. We further lowered the detection limit of AFB1 to 0.01nM through chemiluminescence analysis by using chemiluminescence substrate of HRP. This assay enabled the detection of AFB1 in complex sample matrix, such as diluted white wine and maize flour. This assay provides a simple, sensitive and rapid method for AFB1 determination.
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31
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Farzin L, Shamsipur M, Sheibani S. A review: Aptamer-based analytical strategies using the nanomaterials for environmental and human monitoring of toxic heavy metals. Talanta 2017; 174:619-627. [PMID: 28738631 DOI: 10.1016/j.talanta.2017.06.066] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/23/2017] [Accepted: 06/24/2017] [Indexed: 12/21/2022]
Abstract
Recent developments in biotechnology offer the new methods for the sensitive detection of heavy metals based on the affinity and specificity of aptamers, as nucleic acid ligands selected from random sequence pools in vitro. Heavy metals have received considerable importance as the most toxic metallic pollutants which may cause serious environmental damages. They are classified as trace elements because of their presence in trace concentrations in various environmental matrices. Thus, the precise and sensitive methods to detect heavy metals are important to ensure human and environment safety. Aptamers as the biological probes, show high binding affinity which can often be directly translated into high detection sensitivity. On the other hand, high selectivity and stability make them possible to detect a wide range of targets, especially metallic ions. This review provides current progress of aptamers for environmental and biological monitoring of heavy metals using the nanomaterials mainly in two groups: (i) aptamer based biosensors (aptasensors) and (ii) aptamer based biosorbents (aptasorbents). The introduction of nanomaterials can efficiently increase the immobilization quantity of aptamers. Furthermore, they play an important role in the orientation and assembly density controlling of aptamers for the optimized recognition ability.
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Affiliation(s)
- Leila Farzin
- Radiation Application Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Iran.
| | - Mojtaba Shamsipur
- Department of Chemistry, Razi University, P.O. Box 67149-67346, Kermanshah, Iran
| | - Shahab Sheibani
- Radiation Application Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Iran
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32
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Entzian C, Schubert T. Mapping the Binding Site of an Aptamer on ATP Using MicroScale Thermophoresis. J Vis Exp 2017. [PMID: 28117825 DOI: 10.3791/55070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Characterization of molecular interactions in terms of basic binding parameters such as binding affinity, stoichiometry, and thermodynamics is an essential step in basic and applied science. MicroScale Thermophoresis (MST) is a sensitive biophysical method to obtain this important information. Relying on a physical effect called thermophoresis, which describes the movement of molecules through temperature gradients, this technology allows for the fast and precise determination of binding parameters in solution and allows the free choice of buffer conditions (from buffer to lysates/sera). MST uses the fact that an unbound molecule displays a different thermophoretic movement than a molecule that is in complex with a binding partner. The thermophoretic movement is altered in the moment of molecular interaction due to changes in size, charge, and hydration shell. By comparing the movement profiles of different molecular ratios of the two binding partners, quantitative information such as binding affinity (pM to mM) can be determined. Even challenging interactions between molecules of small sizes, such as aptamers and small compounds, can be studied by MST. Using the well-studied model interaction between the DH25.42 DNA aptamer and ATP, this manuscript provides a protocol to characterize aptamer-small molecule interactions. This study demonstrates that MST is highly sensitive and permits the mapping of the binding site of the 7.9 kDa DNA aptamer to the adenine of ATP.
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Bhattacharyya D, Mirihana Arachchilage G, Basu S. Metal Cations in G-Quadruplex Folding and Stability. Front Chem 2016; 4:38. [PMID: 27668212 PMCID: PMC5016522 DOI: 10.3389/fchem.2016.00038] [Citation(s) in RCA: 364] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 08/25/2016] [Indexed: 12/23/2022] Open
Abstract
This review is focused on the structural and physicochemical aspects of metal cation coordination to G-Quadruplexes (GQ) and their effects on GQ stability and conformation. G-quadruplex structures are non-canonical secondary structures formed by both DNA and RNA. G-quadruplexes regulate a wide range of important biochemical processes. Besides the sequence requirements, the coordination of monovalent cations in the GQ is essential for its formation and determines the stability and polymorphism of GQ structures. The nature, location, and dynamics of the cation coordination and their impact on the overall GQ stability are dependent on several factors such as the ionic radii, hydration energy, and the bonding strength to the O6 of guanines. The intracellular monovalent cation concentration and the localized ion concentrations determine the formation of GQs and can potentially dictate their regulatory roles. A wide range of biochemical and biophysical studies on an array of GQ enabling sequences have generated at a minimum the knowledge base that allows us to often predict the stability of GQs in the presence of the physiologically relevant metal ions, however, prediction of conformation of such GQs is still out of the realm.
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Affiliation(s)
| | | | - Soumitra Basu
- Department of Chemistry and Biochemistry, Kent State UniversityKent, OH, USA
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Wang Z, Pei X, Li N, Tang X. Phosphate-perylene modified G-quadruplex probes for the detection of Pb 2+ using fluorescence anisotropy. J Mater Chem B 2016; 4:4330-4336. [PMID: 32263415 DOI: 10.1039/c6tb00539j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A simple and universal phosphate-perylene modification strategy was applied in the development of G-quadruplex probes with thrombin binding aptamer (TBA) and [d(TGGGT)4] (G4) sequences. A perylene moiety was inserted at different phosphate positions of oligonucleotides without a significant effect on the G-quadruplex structures. Upon binding with K+ or Pb2+, these probes showed different perylene fluorescence anisotropy responses due to the different labeling positions and G-quadruplex structures. Two probes (G4-9 and TBA-9) were successfully used in Pb2+ detection through fluorescence anisotropy. Once the complexes of Pb2+ with G4-9 or TBA-9 were formed, the rotational diffusion of the perylene moiety was limited, resulting in a significant increase in fluorescence anisotropy. Both probes showed good sensitivity to Pb2+ and their fluorescence anisotropy signals demonstrated good linear responses to the logarithm of Pb2+ concentrations and the detection limits were 24.5 nM and 30.0 nM for TBA-9 and G4-9, respectively.
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Affiliation(s)
- Zhixuan Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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35
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Ma DL, Wang W, Mao Z, Kang TS, Han QB, Chan PWH, Leung CH. Utilization of G-Quadruplex-Forming Aptamers for the Construction of Luminescence Sensing Platforms. Chempluschem 2016; 82:8-17. [DOI: 10.1002/cplu.201600036] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/07/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Dik-Lung Ma
- Department of Chemistry; Hong Kong Baptist University; 224 Waterloo Road, Kowloon Tong Hong Kong 852 P. R. China
| | - Wanhe Wang
- Department of Chemistry; Hong Kong Baptist University; 224 Waterloo Road, Kowloon Tong Hong Kong 852 P. R. China
| | - Zhifeng Mao
- Department of Chemistry; Hong Kong Baptist University; 224 Waterloo Road, Kowloon Tong Hong Kong 852 P. R. China
| | - Tian-Shu Kang
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao 999078 P. R. China
| | - Quan-Bin Han
- School of Chinese Medicine; Hong Kong Baptist University; Kowloon Hong Kong 852 P. R. China
| | - Philip Wai Hong Chan
- School of Chemistry; Monash University; Clayton VIC 3800 Australia
- Department of Chemistry; University of Warwick; Coventry CV4 7AL United Kingdom
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao 999078 P. R. China
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DasGupta S, Shelke SA, Li NS, Piccirilli JA. Spinach RNA aptamer detects lead(II) with high selectivity. Chem Commun (Camb) 2016; 51:9034-7. [PMID: 25940073 DOI: 10.1039/c5cc01526j] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spinach RNA aptamer contains a G-quadruplex motif that serves as a platform for binding and fluorescence activation of a GFP-like fluorophore. Here we show that Pb(2+) induces formation of Spinach's G-quadruplex and activates fluorescence with high selectivity and sensitivity. This device establishes the first example of an RNA-based sensor that provides a simple and inexpensive tool for Pb(2+) detection.
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Affiliation(s)
- Saurja DasGupta
- Department of Chemistry, The University of Chicago, Chicago, IL 60637, USA.
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37
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A “turn-on” fluorescence assay for lead(II) based on the suppression of the surface energy transfer between acridine orange and gold nanoparticles. Mikrochim Acta 2016. [DOI: 10.1007/s00604-015-1738-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Cai S, Tian X, Sun L, Hu H, Zheng S, Jiang H, Yu L, Zeng S. Platinum(II)-Oligonucleotide Coordination Based Aptasensor for Simple and Selective Detection of Platinum Compounds. Anal Chem 2015; 87:10542-6. [PMID: 26393810 DOI: 10.1021/acs.analchem.5b02810] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Wide use of platinum-based chemotherapeutic regimens for the treatment for carcinoma calls for a simple and selective detection of platinum compound in biological samples. On the basis of the platinum(II)-base pair coordination, a novel type of aptameric platform for platinum detection has been introduced. This chemiluminescence (CL) aptasensor consists of a designed streptavidin (SA) aptamer sequence in which several base pairs were replaced by G-G mismatches. Only in the presence of platinum, coordination occurs between the platinum and G-G base pairs as opposed to the hydrogen-bonded G-C base pairs, which leads to SA aptamer sequence activation, resulting in their binding to SA coated magnetic beads. These Pt-DNA coordination events were monitored by a simple and direct luminol-peroxide CL reaction through horseradish peroxidase (HRP) catalysis with a strong chemiluminescence emission. The validated ranges of quantification were 0.12-240 μM with a limit of detection of 60 nM and selectivity over other metal ions. This assay was also successfully used in urine sample determination. It will be a promising candidate for the detection of platinum in biomedical and environmental samples.
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Affiliation(s)
- Sheng Cai
- Laboratory of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, China
| | - Xueke Tian
- Laboratory of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, China
| | - Lianli Sun
- Laboratory of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, China
| | - Haihong Hu
- Laboratory of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, China
| | - Shirui Zheng
- Laboratory of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, China
| | - Huidi Jiang
- Laboratory of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, China
| | - Lushan Yu
- Laboratory of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, China
| | - Su Zeng
- Laboratory of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, China
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Entzian C, Schubert T. Studying small molecule-aptamer interactions using MicroScale Thermophoresis (MST). Methods 2015; 97:27-34. [PMID: 26334574 DOI: 10.1016/j.ymeth.2015.08.023] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 08/27/2015] [Accepted: 08/31/2015] [Indexed: 11/18/2022] Open
Abstract
Aptamers are potent and versatile binding molecules recognizing various classes of target molecules. Even challenging targets such as small molecules can be identified and bound by aptamers. Studying the interaction between aptamers and drugs, antibiotics or metabolites in detail is however difficult due to the lack of sophisticated analysis methods. Basic binding parameters of these small molecule-aptamer interactions such as binding affinity, stoichiometry and thermodynamics are elaborately to access using the state of the art technologies. The innovative MicroScale Thermophoresis (MST) is a novel, rapid and precise method to characterize these small molecule-aptamer interactions in solution at microliter scale. The technology is based on the movement of molecules through temperature gradients, a physical effect referred to as thermophoresis. The thermophoretic movement of a molecule depends - besides on its size - on charge and hydration shell. Upon the interaction of a small molecule and an aptamer, at least one of these parameters is altered, leading to a change in the movement behavior, which can be used to quantify molecular interactions independent of the size of the target molecule. The MST offers free choice of buffers, even measurements in complex bioliquids are possible. The dynamic affinity range covers the pM to mM range and is therefore perfectly suited to analyze small molecule-aptamer interactions. This section describes a protocol how quantitative binding parameters for aptamer-small molecule interactions can be obtained by MST. This is demonstrated by mapping down the binding site of the well-known ATP aptamer DH25.42 to a specific region at the adenine of the ATP molecule.
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Affiliation(s)
- Clemens Entzian
- 2bind GmbH, Josef Engertstraße 13, 93053 Regensburg, Germany
| | - Thomas Schubert
- 2bind GmbH, Josef Engertstraße 13, 93053 Regensburg, Germany.
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40
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Zeng X, Zhang FS, Zhu B, Zhu L. Fluorescence Determination of Merucury(II) Using a Thymine Aptamer. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1020430] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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A colorimetric lead (II) ions sensor based on selective recognition of G-quadruplexes by a clip-like cyanine dye. Talanta 2015; 136:210-4. [DOI: 10.1016/j.talanta.2015.01.027] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 01/17/2015] [Accepted: 01/21/2015] [Indexed: 01/06/2023]
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42
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Zhang D, Fu R, Zhao Q, Rong H, Wang H. Nanoparticles-Free Fluorescence Anisotropy Amplification Assay for Detection of RNA Nucleotide-Cleaving DNAzyme Activity. Anal Chem 2015; 87:4903-9. [DOI: 10.1021/acs.analchem.5b00479] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Dapeng Zhang
- State
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People’s Republic of China
| | - Rong Fu
- School
of Medicine and Life Sciences, University of Jinan-Shangdong Academy of Medical Sciences, Jinan 250062, People’s Republic of China
| | - Qiang Zhao
- State
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People’s Republic of China
| | - Haiqin Rong
- School
of Medicine and Life Sciences, University of Jinan-Shangdong Academy of Medical Sciences, Jinan 250062, People’s Republic of China
| | - Hailin Wang
- State
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People’s Republic of China
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43
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Kang L, Yang B, Zhang X, Cui L, Meng H, Mei L, Wu C, Ren S, Tan W. Enzymatic cleavage and mass amplification strategy for small molecule detection using aptamer-based fluorescence polarization biosensor. Anal Chim Acta 2015; 879:91-6. [PMID: 26002482 DOI: 10.1016/j.aca.2015.03.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 03/18/2015] [Accepted: 03/21/2015] [Indexed: 11/25/2022]
Abstract
Fluorescence polarization (FP) assays incorporated with fluorophore-labeled aptamers have attracted great interest in recent years. However, detecting small molecules through the use of FP assays still remains a challenge because small-molecule binding only results in negligible changes in the molecular weight of the fluorophore-labeled aptamer. To address this issue, we herein report a fluorescence polarization (FP) aptamer assay that incorporates a novel signal amplification strategy for highly sensitive detection of small molecules. In the absence of adenosine, our model target, free FAM-labeled aptamer can be digested by nuclease, resulting in the release of FAM-labeled nucleotide segments from the dT-biotin/streptavidin complex with weak background signal. However, in the presence of target, the FAM-labeled aptamer-target complex protects the FAM-labeled aptamer from nuclease cleavage, allowing streptavidin to act as a molar mass amplifier. The resulting increase in molecular mass and FP intensity of the aptamer-target complex provides improved sensitivity for concentration measurement. The probe could detect adenosine from 0.5 μM to 1000 μM, with a detection limit of 500 nM, showing that the sensitivity of the probe is superior to aptamer-based FP approaches previously reported for adenosine. Importantly, FP could resist environmental interferences, making it useful for complex biological samples without any tedious sample pretreatments. Our results demonstrate that this dual-amplified, aptamer-based strategy can be used to design fluorescence polarization probes for rapid, sensitive, and selective measurement of small molecules in complicated biological environment.
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Affiliation(s)
- Liping Kang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Bin Yang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Xiaobing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China.
| | - Liang Cui
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Hongmin Meng
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Lei Mei
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Cuichen Wu
- Department of Chemistry and Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Shands Cancer Center, University of Florida, Gainesville, FL 32611-7200, USA
| | - Songlei Ren
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China; Department of Chemistry and Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Shands Cancer Center, University of Florida, Gainesville, FL 32611-7200, USA
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44
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Chen H, Sun H, Zhang X, Sun X, Shi Y, Tang Y. A supramolecular probe for colorimetric detection of Pb2+ based on recognition of G-quadruplex. RSC Adv 2015. [DOI: 10.1039/c4ra11395k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A colorimetric probe of Pb2+ has been designed based on the mechanism that a supramolecular probe selectively recognized the Pb2+-induced conformational transition of G-quadruplexes.
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Affiliation(s)
- Hongbo Chen
- College of Chemistry Engineering
- Hebei United University
- Tangshan
- PR China
- National Laboratory for Molecular Sciences
| | - Hongxia Sun
- National Laboratory for Molecular Sciences
- Center for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry Chinese Academy of Sciences
- Beijing 100190
| | - Xiufeng Zhang
- College of Chemistry Engineering
- Hebei United University
- Tangshan
- PR China
| | - Xiaoran Sun
- College of Chemistry Engineering
- Hebei United University
- Tangshan
- PR China
| | - Yunhua Shi
- National Laboratory for Molecular Sciences
- Center for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry Chinese Academy of Sciences
- Beijing 100190
| | - Yalin Tang
- National Laboratory for Molecular Sciences
- Center for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry Chinese Academy of Sciences
- Beijing 100190
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45
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Jiang Y, Wang Y, Meng F, Wang B, Cheng Y, Zhu C. N-doped carbon dots synthesized by rapid microwave irradiation as highly fluorescent probes for Pb2+ detection. NEW J CHEM 2015. [DOI: 10.1039/c5nj00170f] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
New NCDs were obtained and exhibit highly sensitive response to Pb2+ which could be applied to real sample detection.
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Affiliation(s)
- Yuliang Jiang
- Key Lab of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Yuxiang Wang
- Key Lab of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Fandian Meng
- Key Lab of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Bingxiang Wang
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097
- China
| | - Yixiang Cheng
- Key Lab of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Chengjian Zhu
- Key Lab of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
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46
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Wang C, Dong X, Liu Q, Wang K. Label-free colorimetric aptasensor for sensitive detection of ochratoxin A utilizing hybridization chain reaction. Anal Chim Acta 2014; 860:83-8. [PMID: 25682251 DOI: 10.1016/j.aca.2014.12.031] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/14/2014] [Accepted: 12/15/2014] [Indexed: 11/25/2022]
Abstract
The combination of high selectivity of aptamer with the peroxidase-mimicking property of DNAzyme has presented considerable opportunities for designing colorimetric aptasensor for detection of ochratoxin A (OTA). The activities of both aptamer (as biorecognition element) and DNAzyme (as signal amplification element) are blocked via base pairing in the hairpin structure. Hybridization chain reaction (HCR) between two hairpin DNAs was employed to further improve the sensitivity of this method. The presence of OTA triggers the opening of the hairpin structure and the beginning of HCR, which results in the release of many DNAzyme, and generates enhanced colorimetric signals, which is correlated to the amounts of OTA with linear range between 0.01 to 0.32 nM, and the limit of detection is 0.01 nM under optimal conditions. OTA in yellow rice wine and wheat flour samples was also detected using this method. We demonstrate that a new colorimetric method for the detection of OTA has been established, which is simple, easy to conduct, label-free, sensitive, high throughput, and cost-saving.
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Affiliation(s)
- Chengke Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xiaoya Dong
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qian Liu
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Kun Wang
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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47
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Huang Y, Liu X, Shi M, Zhao S, Hu K, Chen ZF, Liang H. Ultrasensitive fluorescence polarization aptasensors based on exonuclease signal amplification and polystyrene nanoparticle amplification. Chem Asian J 2014; 9:2755-60. [PMID: 25081952 DOI: 10.1002/asia.201402563] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Indexed: 11/08/2022]
Abstract
Here, we combine T7 exonuclease (T7 Exo) signal amplification and polystyrene nanoparticle (PS NP) amplification to develop novel fluorescence polarization (FP) aptasensors. The binding of a target/open aptamer hairpin complex or a target/single-stranded aptamer complex to dye-labeled DNA bound to PS NPs, or the self-assembly of two aptamer subunits (one of them labeled with a dye) into a target/aptamer complex on PS NPs leads to the cyclic T7 Exo-catalyzed digestion of the dye-labeled DNA or the dye-labeled aptamer subunit. This results in a substantial decrease in the FP value for the amplified sensing process. Our newly developed aptasensors exhibit a sensitivity five orders of magnitude higher than that of traditional homogeneous aptasensors and a high specificity for the target molecules. These distinct advantages of our proposed assay protocol make it a generic platform for the design of amplified aptasensors for ultrasensitive detection of various target molecules.
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Affiliation(s)
- Yong Huang
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), College of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004 (China).
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