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Tan H, Li Y. AIEgens-based fluorescent covalent organic framework in construction of chemiluminescence resonance energy transfer system for serum uric acid detection. Mikrochim Acta 2021; 188:254. [PMID: 34264383 DOI: 10.1007/s00604-021-04923-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/29/2021] [Indexed: 11/27/2022]
Abstract
A covalent organic framework (COF) with aggregation-induced emission (AIE) property was successfully synthesized through in situ marriage of a commonly used AIE molecule tetraphenylethylene (TPE) with Schiff base network (SNW-1) through a simple one-pot method. The TPE@SNW-1 was characterized with different techniques of Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, scanning electron microscopy, and nitrogen adsorption/desorption experiments. The fluorescence of the TPE@SNW-1 strongly depends on the composition of tetrahydrofuran-water binary system. The AIE property of TPE@SNW-1 was directly supported with particle size distribution by dynamic light scattering technique. With the TPE@SNW-1 as an energy acceptor, a chemiluminescence resonance energy transfer (CRET) system was constructed with bis(2,4,6-trichlorophenyl) oxalate (TCPO)-hydrogen peroxide (H2O2) reaction as an energy donor. The chemiluminescence (CL) signal displays a good linear relationship with concentration of H2O2 in the 5.0-1000.0 μmol·L-1 range, and a detection limit of 2.34 μmol L-1. The system was further exploited to determine uric acid based on the fact that equal stoichiometric amount of H2O2 can be concurrently generated under the catalysis of uricase. The procedure exhibits a linear response to uric acid concentration in the range 10.0-150.0 μmol·L-1 and a detection limit of 4.94 μmol·L-1. The practicability of the method was demonstrated in the determination of uric acid in human serum samples.
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Affiliation(s)
- Haonan Tan
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yinhuan Li
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China.
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2
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Wang Z, Li S, Zhou C, Sun Y, Pang H, Liu W, Li X. Ratiometric fluorescent nanoprobe based on CdTe/SiO 2/folic acid/silver nanoparticles core-shell-satellite assembly for determination of 6-mercaptopurine. Mikrochim Acta 2020; 187:665. [PMID: 33205310 DOI: 10.1007/s00604-020-04628-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/28/2020] [Indexed: 11/24/2022]
Abstract
A sensitive and robust fluorescent assay of 6-MP is described which relies on the facile assembly of a fluorescence nanoprobe by design of silica nanosphere encapsulated CdTe quantum dots (CdTe QDs) as scaffold, coupling with chemically tethered folic acid (FA)-protected silver nanoparticles (AgNPs) that function as responsive element. In this way a stable ternary core-shell-satellite nanostructure with dual-emission signals can be established. On binding to the target molecules, 6-MP, FA molecules initially occupied by AgNPs are liberated to give dose-dependent fluorescence emission, which can further form a self-calibration ratiometric fluorescence assay using CdTe QDs as an internal reference. The nanoprobe color vividly changes from red to blue, enabling the direct visual detection. The linear concentration range is 0.15~50 μM with the detection limit of 67 nM. By virtue of the favorable selectivity and robust assays, the nanoprobe was applied to 6-MP detection in urine samples, with recoveries from 97.3 to 106% and relative standard deviations (RSD) less than 5%. Graphical abstract.
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Affiliation(s)
- Zhao Wang
- Pharmaceutical Analysis Division, School of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Shuting Li
- Pharmaceutical Analysis Division, School of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Chunyan Zhou
- Inorganic Chemistry Division, School of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Yingying Sun
- Pharmaceutical Analysis Division, School of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Hui Pang
- School of Preclinical Medicine, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530031, People's Republic of China
| | - Wei Liu
- Biopharmaceutics and Pharmacokinetics Division, School of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, People's Republic of China.
| | - Xinchun Li
- Pharmaceutical Analysis Division, School of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, People's Republic of China.
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Li Q, Wang H, Yue X, Du J. Perovskite nanocrystals fluorescence nanosensor for ultrasensitive detection of trace melamine in dairy products by the manipulation of inner filter effect of gold nanoparticles. Talanta 2020; 211:120705. [PMID: 32070571 DOI: 10.1016/j.talanta.2019.120705] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/24/2019] [Accepted: 12/30/2019] [Indexed: 11/15/2022]
Abstract
Barium sulfate-coated CsPbBr3 perovskite nanocrystals (CsPbBr3 NCs@BaSO4) was successfully synthesized that exhibited stable and intense fluorescence property in aqueous buffer. With the CsPbBr3 NCs@BaSO4 as signal readout, an ultrasensitive fluorescence nanosensor was developed for turn-on determination of melamine by the manipulation of inner filter effect of citrate-protected gold nanoparticles (AuNPs). The fluorescence of the CsPbBr3 NCs@BaSO4 was remarkably quenched by the AuNPs due to inner filter effect. This inner filter effect could be weakened by the addition of melamine as a result of melamine-triggering aggregation of the AuNPs and subsequently led to a recovery in the fluorescence of the CsPbBr3 NCs@BaSO4. The recovery ratio was proportional to the concentration of melamine in the range of 5.0-500.0 nmol/L. The limit of detection was 0.42 nmol/L and the relative standard deviation was 4.0% for the repetitive determination of 500.0 nmol/L melamine solution (n = 11). The nanosensor was successfully applied to analysis of melamine in dairy product samples.
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Affiliation(s)
- Qian Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Hongbo Wang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Xuanfeng Yue
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Jianxiu Du
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
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4
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Yan Y, Wang XY, Hai X, Song W, Ding C, Cao J, Bi S. Chemiluminescence resonance energy transfer: From mechanisms to analytical applications. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115755] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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5
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Cai N, Yang D, Chen F. A novel chemiluminescence system based on bis(2,4,6-Trichlorophyenyl) oxalate and hydrogen peroxide induced by CdTe QDs for determination of phloroglucinol. Microchem J 2019. [DOI: 10.1016/j.microc.2018.09.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Pang C, Han S, Li Y, Zhang J. Graphene quantum dot‐enhanced chemiluminescence through energy and electron transfer for the sensitive detection of tyrosine. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201800141] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chunhua Pang
- Department of ChemistryModern College of Humanities and Sciences of Shanxi Normal University Linfen Shanxi P. R. China
- School of Life ScienceShanxi Normal University Linfen Shanxi P. R. China
- Collaborative Innovation Center for Shanxi Advanced Permanent Magnetic Materials and TechnologyShanxi Normal University Linfen Shanxi P. R. China
| | - Suqin Han
- Department of ChemistryModern College of Humanities and Sciences of Shanxi Normal University Linfen Shanxi P. R. China
- School of Chemistry and Material ScienceShanxi Normal University Linfen Shanxi P. R. China
| | - Yue Li
- School of Chemistry and Material ScienceShanxi Normal University Linfen Shanxi P. R. China
| | - Junmei Zhang
- School of Chemistry and Material ScienceShanxi Normal University Linfen Shanxi P. R. China
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Chakravarty R, Goel S, Dash A, Cai W. Radiolabeled inorganic nanoparticles for positron emission tomography imaging of cancer: an overview. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF RADIOPHARMACEUTICAL CHEMISTRY AND BIOLOGY 2017; 61:181-204. [PMID: 28124549 DOI: 10.23736/s1824-4785.17.02969-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Over the last few years, a plethora of radiolabeled inorganic nanoparticles have been developed and evaluated for their potential use as probes in positron emission tomography (PET) imaging of a wide variety of cancers. Inorganic nanoparticles represent an emerging paradigm in molecular imaging probe design, allowing the incorporation of various imaging modalities, targeting ligands, and therapeutic payloads into a single vector. A major challenge in this endeavor is to develop disease-specific nanoparticles with facile and robust radiolabeling strategies. Also, the radiolabeled nanoparticles should demonstrate adequate in vitro and in vivo stability, enhanced sensitivity for detection of disease at an early stage, optimized in vivo pharmacokinetics for reduced non-specific organ uptake, and improved targeting for achieving high efficacy. Owing to these challenges and other technological and regulatory issues, only a single radiolabeled nanoparticle formulation, namely "C-dots" (Cornell dots), has found its way into clinical trials thus far. This review describes the available options for radiolabeling of nanoparticles and summarizes the recent developments in PET imaging of cancer in preclinical and clinical settings using radiolabeled nanoparticles as probes. The key considerations toward clinical translation of these novel PET imaging probes are discussed, which will be beneficial for advancement of the field.
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Affiliation(s)
- Rubel Chakravarty
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India -
| | - Shreya Goel
- Materials Science Program, University of Wisconsin, Madison, WI, USA
| | - Ashutosh Dash
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Weibo Cai
- Materials Science Program, University of Wisconsin, Madison, WI, USA.,Department of Radiology, University of Wisconsin, Madison, WI, USA.,Department of Medical Physics, University of Wisconsin, Madison, WI, USA.,University of Wisconsin, Carbone Cancer Center, Madison, WI, USA
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8
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Proximity hybridization-regulated chemiluminescence resonance energy transfer for homogeneous immunoassay. Talanta 2016; 154:455-60. [DOI: 10.1016/j.talanta.2016.01.060] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/26/2016] [Accepted: 01/28/2016] [Indexed: 01/20/2023]
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Xu S, Li X, Li C, Li J, Zhang X, Wu P, Hou X. In Situ Generation and Consumption of H2O2 by Bienzyme-Quantum Dots Bioconjugates for Improved Chemiluminescence Resonance Energy Transfer. Anal Chem 2016; 88:6418-24. [PMID: 27223815 DOI: 10.1021/acs.analchem.6b01000] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Exploration of quantum dots (QDs) as energy acceptors revolutionizes the current chemiluminescence resonance energy transfer (CRET), since QDs possess large Stokes shifts and high luminescence efficiency. However, the strong and high concentration of oxidant (typically H2O2) needed for luminol chemiluminescence (CL) reaction could cause oxidative quenching to QDs, thereby decreasing the CRET performance. Here we proposed the use of bienzyme-QDs bioconjugate as the energy acceptor for improved CRET sensing. Two enzymes, one for H2O2 generation (oxidase) and another for H2O2 consumption (horseradish peroxidase, HRP), were bioconjugated onto the surface of QDs. The bienzyme allowed fast in situ cascaded H2O2 generation and consumption, thus alleviating fluorescence quenching of QDs. The nanosized QDs accommodate the two enzymes in a nanometric range, and the CL reaction was confined on the surface of QDs accordingly, thereby amplifying the CL reaction rate and improving CRET efficiency. As a result, CRET efficiency of 30-38% was obtained; the highest CRET efficiency by far was obtained using QDs as the energy acceptor. The proposed CRET system could be explored for ultrasensitive sensing of various oxidase substrates (here exemplified with cholesterol, glucose, and benzylamine), allowing for quantitative measurement of a spectrum of metabolites with high sensitivity and specificity. Limits of detection (LOD, 3σ) for cholesterol, glucose, and benzylamine were found to be 0.8, 3.4, and 10 nM, respectively. Furthermore, multiparametric blood analysis (glucose and cholesterol) is demonstrated.
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Affiliation(s)
- Shuxia Xu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China
| | - Xianming Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China
| | - Chaobi Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China
| | - Jialin Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China
| | - Xinfeng Zhang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China
| | - Peng Wu
- Analytical & Testing Center, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Xiandeng Hou
- Analytical & Testing Center, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
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You X, Li Y, Li B, Ma J. Gold nanoclusters-based chemiluminescence resonance energy transfer method for sensitive and label-free detection of trypsin. Talanta 2015; 147:63-8. [PMID: 26592577 DOI: 10.1016/j.talanta.2015.09.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 09/09/2015] [Accepted: 09/12/2015] [Indexed: 01/03/2023]
Abstract
A chemiluminescence resonance energy transfer (CRET) platform was developed for sensitive and label-free detection of protease by using trypsin as a model analyte. In this CRET platform, bis(2,4,6-trichlorophenyl)oxalate-hydrogen peroxide chemiluminescence (CL) reaction was utilized as an energy donor and bovine serum albumin (BSA)-stabilized gold nanoclusters (Au NCs) as an energy acceptor. The BSA-stabilized Au NCs triggered the CRET phenomenon by accepting the energy from TCPO-H2O2 CL reaction, thus producing intense CL. In the presence of trypsin, the protein template of BSA-stabilized Au NCs was digested, which frustrated the energy transfer efficiency between the CL donor and the BSA-stabilized Au NCs, leading to a significant decrease in the CL signal. The decreased CL signal was proportional to the logarithm of trypsin concentration in the range of 0.01-50.0µg mL(-1). The detection limit for trypsin was 9ng mL(-)(1) and the relative standard deviations were lesser than 3% (n=11). This Au NCs-based CRET platform was successfully applied to the determination of trypsin in human urine samples, demonstrating its potential application in clinical diagnosis.
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Affiliation(s)
- Xiaoying You
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yinhuan Li
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Baoping Li
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jie Ma
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710049, China
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Du J, Wang Y, Zhang W. Gold nanoparticles-based chemiluminescence resonance energy transfer for ultrasensitive detection of melamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 149:698-702. [PMID: 25988815 DOI: 10.1016/j.saa.2015.04.067] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 03/10/2015] [Accepted: 04/22/2015] [Indexed: 06/04/2023]
Abstract
A turn-on chemiluminescence resonance energy transfer method was fabricated for the determination of melamine by using bis(2,4,6-trichlorophenyl)oxalate-hydrogen peroxide-fluorescein chemiluminescence reaction as a donor and dispersed gold nanoparticles as an acceptor. The chemiluminescence signal of bis(2,4,6-trichlorophenyl)oxalate-hydrogen peroxide-fluorescein reaction decreased significantly in the presence of dispersed gold nanoparticles because the absorption band of dispersed gold nanoparticles perfectly overlapped with the chemiluminescence spectrum. Melamine could induce the aggregation of gold nanoparticles, leading to a dramatic red-shift of the absorption band of dispersed gold nanoparticles. The absorption band of the aggregated gold nanoparticles does not overlap with the chemiluminescence spectrum of the reaction. In such a case, chemiluminescence resonance energy transfer could not happen and the chemiluminescence signal was restored. The procedure allowed the measurement of 3.2×10(-12)-3.2×10(-7) mol/L melamine with a limit of detection of 3×10(-13) mol/L. The method was applied to the determination of melamine in spiked milk samples; with recoveries within the range 94.1-104.2%.
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Affiliation(s)
- Jianxiu Du
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
| | - Yadi Wang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Weimin Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
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Li N, Liu D, Cui H. Metal-nanoparticle-involved chemiluminescence and its applications in bioassays. Anal Bioanal Chem 2014; 406:5561-71. [DOI: 10.1007/s00216-014-7901-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 05/13/2014] [Accepted: 05/14/2014] [Indexed: 01/31/2023]
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Mun H, Jo EJ, Li T, Joung HA, Hong DG, Shim WB, Jung C, Kim MG. Homogeneous assay of target molecules based on chemiluminescence resonance energy transfer (CRET) using DNAzyme-linked aptamers. Biosens Bioelectron 2014; 58:308-13. [PMID: 24658027 DOI: 10.1016/j.bios.2014.02.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 01/27/2014] [Accepted: 02/05/2014] [Indexed: 12/28/2022]
Abstract
We have designed a single-stranded DNAzyme-aptamer sensor for homogeneous target molecular detection based on chemiluminescence resonance energy transfer (CRET). The structure of the engineered single-stranded DNA (ssDNA) includes the horseradish peroxidase (HRP)-like DNAzyme, optimum-length linker (10-mer-length DNA), and target-specific aptamer sequences. A quencher dye was modified at the 3' end of the aptamer sequence. The incorporation of hemin into the G-quadruplex structure of DNAzyme yields an active HRP-like activity that catalyzes luminol to generate a chemiluminescence (CL) signal. In the presence of target molecules, such as ochratoxin A (OTA), adenosine triphosphate (ATP), or thrombin, the aptamer sequence was folded due to the formation of the aptamer/analyte complex, which induced the quencher dye close to the DNAzyme structure. Consequently, the CRET occurred between a DNAzyme-catalyzed chemiluminescence reaction and the quencher dye. Our results showed that CRET-based DNAzyme-aptamer biosensing enabled specific OTA analysis with a limit of detection of 0.27ng/mL. The CRET platform needs no external light source and avoids autofluorescence and photobleaching, and target molecules can be detected specifically and sensitively in a homogeneous manner.
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Affiliation(s)
- Hyoyoung Mun
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Eun-Jung Jo
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Taihua Li
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Hyou-Arm Joung
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Dong-Gu Hong
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Won-Bo Shim
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Cheulhee Jung
- Department of Chemistry and Biochemistry, Institute of Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA
| | - Min-Gon Kim
- School of Physics and Chemistry, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea; Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea.
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Chemiluminescent detection of cell apoptosis enzyme by gold nanoparticle-based resonance energy transfer assay. Anal Bioanal Chem 2014; 406:5677-84. [PMID: 24481623 DOI: 10.1007/s00216-013-7611-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 12/27/2013] [Accepted: 12/30/2013] [Indexed: 10/25/2022]
Abstract
We report a new chemiluminescence resonance energy transfer (CRET) technique, using gold nanoparticles (AuNPs) as efficient energy acceptor, for homogeneous measurement of cell apoptosis enzyme with high sensitivity. In the design of the CRET system, we chose the highly sensitive chemiluminescence (CL) reaction between luminol and hydrogen peroxide catalysed by horseradish peroxidase (HRP) because the CL spectrum of luminol (λ max 425 nm) partially overlaps the visible absorption bands of AuNPs. In this system, the peptide substrate (DEVD) of caspase 3 was linked to the AuNP surface by Au-S linkage. HRP was attached to the AuNP surface by means of a bridge formed by the streptavidin-biotin reaction. CRET occurred as a result of formation of AuNP-peptide-biotin-streptavidin-HRP complexes. The CL of luminol was significantly reduced, because of the quenching effect of AuNPs. The quenched CL was recovered after cleavage of DEVD by caspase 3, an enzyme involved in the apoptotic process. Experimental conditions were systematically investigated. Under the optimum conditions the increase of the CL signal was linearly dependent on caspase 3 concentration within the concentration range 25 pmol L(-1) to 800 pmol L(-1) and the detection limit of caspase 3 was as low as 20 pmol L(-1), one order of magnitude lower than for FRET sensors based on graphene oxides. Our method was successfully used to detect drug-induced apoptosis of cells. This approach is expected to be extended to other assays, i.e., using other enzymes, analytes, CL substances, and even other nanoparticles (e.g., quantum dots and graphene).
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Fu WL, Zhen SJ, Huang CZ. Controllable preparation of graphene oxide/metal nanoparticle hybrids as surface-enhanced Raman scattering substrates for 6-mercaptopurine detection. RSC Adv 2014. [DOI: 10.1039/c4ra00658e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
In this contribution, a new simple and cost-effective strategy for the preparation of hybrids of graphene oxide (GO) and metal nanoparticles (MNPs) through the mediation of polyethyleneimine (PEI) molecules was reported.
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Affiliation(s)
- Wen Liang Fu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing, P.R. China
| | - Shu Jun Zhen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing, P.R. China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing, P.R. China
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He Y, Cui H. Label free and homogeneous histone sensing based on chemiluminescence resonance energy transfer between lucigenin and gold nanoparticles. Biosens Bioelectron 2013; 47:313-7. [DOI: 10.1016/j.bios.2013.03.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 02/19/2013] [Accepted: 03/07/2013] [Indexed: 11/29/2022]
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Huang X, Ren J. Nanomaterial-based chemiluminescence resonance energy transfer: A strategy to develop new analytical methods. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.07.014] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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