101
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Jukapli NM, Bagheri S. Recent developments on titania nanoparticle as photocatalytic cancer cells treatment. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 163:421-30. [DOI: 10.1016/j.jphotobiol.2016.08.046] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 08/17/2016] [Accepted: 08/29/2016] [Indexed: 01/08/2023]
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102
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Zheng YN, Liang WB, Xiong CY, Yuan YL, Chai YQ, Yuan R. Self-Enhanced Ultrasensitive Photoelectrochemical Biosensor Based on Nanocapsule Packaging Both Donor-Acceptor-Type Photoactive Material and Its Sensitizer. Anal Chem 2016; 88:8698-705. [PMID: 27513736 DOI: 10.1021/acs.analchem.6b01984] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this work, a self-enhanced ultrasensitive photoelectrochemical (PEC) biosensor was established based on a functionalized nanocapsule packaging both donor-acceptor-type photoactive material and its sensitizer. The functionalized nanocapsule with self-enhanced PEC responses was achieved first by packaging both the donor-acceptor-type photoactive material (poly{4,8-bis[5-(2-ethylhexyl)thiophen-2-yl]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl-alt-3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophene-4,6-diyl}, PTB7-Th) and its sensitizer (nano-C60, fullerene) in poly(ethylene glycol) (PEG) to form a nanocapsule, which significantly enhanced PEC signal and stability of the PEC biosensor. Moreover, a quadratic enzymes-assisted target recycling amplification strategy was introduced to the system for ultrasensitive determination. Compared with other established PEC biosensors, our proposed self-enhanced approach showed higher effectivity, accuracy, sensitivity, and convenience without any addition of coreactant or sensitizers into the testing electrolyte for photocurrent amplification and performed excellent analytical properties for microRNA estimation down to femtomole level with microRNA-141 as a model. Additionally, the proposed PEC biosensor was employed for estimation of microRNA in different cancer cells and pharmacodynamic evaluation in cancer cells. This self-enhanced PEC strategy has laid the foundation for fabrication of simple, effective, and ultrasensitive PEC diagnostic devices, leading to the possibility for early diagnosis, timely stage estimation, and accurate prognosis judgment of disease.
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Affiliation(s)
- Ying-Ning Zheng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Wen-Bin Liang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China.,Department of Clinical Biochemistry, Laboratory Sciences, Southwest Hospital, Third Military Medical University , 30 Gaotanyan Street, Shapingba District, Chongqing 400038, People's Republic of China
| | - Cheng-Yi Xiong
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Ya-Li Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Ya-Qin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
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103
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A highly selective and picomolar level photoelectrochemical sensor for PCB 101 detection in environmental water samples. Biosens Bioelectron 2016; 81:503-509. [DOI: 10.1016/j.bios.2016.03.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 03/10/2016] [Accepted: 03/11/2016] [Indexed: 12/27/2022]
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104
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Wang H, Wang Y, Zhang Y, Wang Q, Ren X, Wu D, Wei Q. Photoelectrochemical Immunosensor for Detection of Carcinoembryonic Antigen Based on 2D TiO2 Nanosheets and Carboxylated Graphitic Carbon Nitride. Sci Rep 2016; 6:27385. [PMID: 27263659 PMCID: PMC4893710 DOI: 10.1038/srep27385] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 05/16/2016] [Indexed: 01/02/2023] Open
Abstract
Carcinoembryonic antigen (CEA) was used as the model, an ultrasensitive label-free photoelectrochemical immunosensor was developed using 2D TiO2 nanosheets and carboxylated graphitic carbon nitride (g-C3N4) as photoactive materials and ascorbic acid as an efficient electron donor. 2D TiO2 nanosheets was sythsized by surfactant self-assembly method and proved to have higher photoelectrochemical signals than TiO2 nanoparticles. Firstly, carboxylated g-C3N4 could be attached to 2D TiO2 nanosheets through the bond formed between carboxyl group of carboxylated g-C3N4 and TiO2. And the photocurrent of g-C3N4/TiO2 drastically enhances compared to carboxylated g-C3N4 and TiO2. Then, antibody of CEA was bonded to TiO2 through the dentate bond formed between carboxyl group of anti-CEA and TiO2, leading to the decrease of the photocurrents. As proven by PEC experiments and electrochemical impedance spectroscopy (EIS) analysis, the fabrication process of the immunosensor is successful. Under the optimal conditions, the intensity decreased linearly with CEA concentration in the range of 0.01~10 ng/mL. The detection limit is 2.1 pg/mL. The work provides an effective method for the detection of tumor markers and can be extended for the application in food safety and environmental monitoring analysis.
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Affiliation(s)
- Huan Wang
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yaoguang Wang
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yong Zhang
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Qi Wang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Xiang Ren
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Dan Wu
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Qin Wei
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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105
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Han SW, Koh WG. Hydrogel-Framed Nanofiber Matrix Integrated with a Microfluidic Device for Fluorescence Detection of Matrix Metalloproteinases-9. Anal Chem 2016; 88:6247-53. [DOI: 10.1021/acs.analchem.5b04867] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Sang Won Han
- Department
of Chemical and
Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, South Korea
| | - Won-Gun Koh
- Department
of Chemical and
Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, South Korea
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106
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Yang ZH, Zhuo Y, Yuan R, Chai YQ. A nanohybrid of platinum nanoparticles-porous ZnO–hemin with electrocatalytic activity to construct an amplified immunosensor for detection of influenza. Biosens Bioelectron 2016; 78:321-327. [DOI: 10.1016/j.bios.2015.10.073] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/18/2015] [Accepted: 10/26/2015] [Indexed: 01/05/2023]
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107
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Fan GC, Zhu H, Du D, Zhang JR, Zhu JJ, Lin Y. Enhanced Photoelectrochemical Immunosensing Platform Based on CdSeTe@CdS:Mn Core–Shell Quantum Dots-Sensitized TiO2 Amplified by CuS Nanocrystals Conjugated Signal Antibodies. Anal Chem 2016; 88:3392-9. [DOI: 10.1021/acs.analchem.6b00144] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gao-Chao Fan
- State
Key Laboratory of Analytical Chemistry for Life Science, Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Hua Zhu
- State
Key Laboratory of Analytical Chemistry for Life Science, Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Dan Du
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Jian-Rong Zhang
- State
Key Laboratory of Analytical Chemistry for Life Science, Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
- School
of Chemistry and Life Science, Nanjing University Jinling College, Nanjing 210089, People’s Republic of China
| | - Jun-Jie Zhu
- State
Key Laboratory of Analytical Chemistry for Life Science, Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Yuehe Lin
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
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108
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Ge L, Wang W, Hou T, Li F. A versatile immobilization-free photoelectrochemical biosensor for ultrasensitive detection of cancer biomarker based on enzyme-free cascaded quadratic amplification strategy. Biosens Bioelectron 2016; 77:220-6. [DOI: 10.1016/j.bios.2015.09.041] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 12/12/2022]
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109
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Ultrasensitive photoelectrochemical immunoassay for CA19-9 detection based on CdSe@ZnS quantum dots sensitized TiO 2 NWs/Au hybrid structure amplified by quenching effect of Ab 2 @V 2+ conjugates. Biosens Bioelectron 2016; 77:339-46. [DOI: 10.1016/j.bios.2015.09.051] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 09/02/2015] [Accepted: 09/23/2015] [Indexed: 12/26/2022]
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110
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Zhang N, Ma ZY, Ruan YF, Zhao WW, Xu JJ, Chen HY. Simultaneous Photoelectrochemical Immunoassay of Dual Cardiac Markers Using Specific Enzyme Tags: A Proof of Principle for Multiplexed Bioanalysis. Anal Chem 2016; 88:1990-4. [DOI: 10.1021/acs.analchem.5b04579] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Nan Zhang
- State Key
Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Zheng-Yuan Ma
- State Key
Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Yi-Fan Ruan
- State Key
Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Wei-Wei Zhao
- State Key
Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Jing-Juan Xu
- State Key
Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Hong-Yuan Chen
- State Key
Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
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111
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Cong X, Fan GC, Wang X, Abdel-Halim ES, Zhu JJ. Enhanced photoelectrochemical aptasensing platform amplified through the sensitization effect of CdTe@CdS core–shell quantum dots coupled with exonuclease-I assisted target recycling. J Mater Chem B 2016; 4:6117-6124. [DOI: 10.1039/c6tb01807f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The sensitization of CdTe@CdS core–shell quantum dots on N-doped mesoporous TiO2, integrated with exonuclease-I assisted target recycling, was applied to construct an enhanced photoelectrochemical aptasensing platform.
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Affiliation(s)
- Xinxin Cong
- College of Chemistry
- Chemical Engineering and Materials Science
- Shandong Normal University
- Jinan
- P. R. China
| | - Gao-Chao Fan
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Xiaolei Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Shandong Normal University
- Jinan
- P. R. China
| | - E. S. Abdel-Halim
- Chemistry Department
- College of Science
- King Saud University
- Riyadh
- Saudi Arabia
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
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112
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A competitive photoelectrochemical immunosensor based on a CdS-induced signal amplification strategy for the ultrasensitive detection of dexamethasone. Sci Rep 2015; 5:17945. [PMID: 26648409 PMCID: PMC4673695 DOI: 10.1038/srep17945] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 11/09/2015] [Indexed: 12/16/2022] Open
Abstract
A novel photoelectrochemical immunosensor based on the competitive strategy is proposed for the specific detection of dexamethasone (DXM). Graphitic carbon nitride coupled with bismuth sulfide are used as the sensing matrix for the immobilization of BSA-DXM on the electrode surface, while cadmium sulfide functionalized titanium dioxide (TiO2@CdS) is used as the photoelectric active labels of anti-DXM. Due to the perfect matching of energy levels between TiO2 and CdS, the in situ prepared composite labels show excellent photocurrent response under visible lights. The competitive binding of DXM in sample solutions and BSA-DXM on the electrode surface reduces the specific attachment of labels to the electrode, resulting in a decrease of the photocurrent intensity. Greatly enhanced sensitivity is achieved after the optimization of the detection conditions. Under the optimal detection condition, the well-designed immunosensor for DXM exhibits a low detection limit of 2 pg ∙ mL(-1). Additionally, the proposed immunoassay system shows high specificity, good reproducibility and acceptable stability, which is also expected to become a promising platform for the detection of other small molecules.
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113
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Zhao M, Fan GC, Chen JJ, Shi JJ, Zhu JJ. Highly Sensitive and Selective Photoelectrochemical Biosensor for Hg2+ Detection Based on Dual Signal Amplification by Exciton Energy Transfer Coupled with Sensitization Effect. Anal Chem 2015; 87:12340-7. [DOI: 10.1021/acs.analchem.5b03721] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ming Zhao
- School of Chemical
Engineering, Anhui University of Science and Technology, Huainan 232001, People’s Republic of China
| | - Gao-Chao Fan
- State Key Laboratory of Analytical Chemistry for Life Science, Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Jing-Jia Chen
- State Key Laboratory of Analytical Chemistry for Life Science, Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Jian-Jun Shi
- School of Chemical
Engineering, Anhui University of Science and Technology, Huainan 232001, People’s Republic of China
- State Key Laboratory of Analytical Chemistry for Life Science, Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, Collaborative
Innovation Center of Chemistry for Life Sciences, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
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114
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Wang Y, Ma H, Wang X, Pang X, Wu D, Du B, Wei Q. Novel signal amplification strategy for ultrasensitive sandwich-type electrochemical immunosensor employing Pd–Fe3O4-GS as the matrix and SiO2 as the label. Biosens Bioelectron 2015; 74:59-65. [DOI: 10.1016/j.bios.2015.06.033] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/21/2015] [Accepted: 06/15/2015] [Indexed: 12/11/2022]
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115
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Tang J, Li J, Sikdar D, Kong B, Quan Y, Che S, Wang Y, Al-Enizi AM, Premaratne M, Zheng G. Plasmon-enhanced photoelectrochemical monitoring of Ca2+ from living cardiomyocytes. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.04.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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116
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Cai Z, Rong M, Zhao T, Zhao L, Wang Y, Chen X. Solar-induced photoelectrochemical sensing for dopamine based on TiO2 nanoparticles on g-C3N4 decorated graphene nanosheets. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.08.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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117
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Li S, Dong M, Li R, Zhang L, Qiao Y, Jiang Y, Qi W, Wang H. A fluorometric microarray with ZnO substrate-enhanced fluorescence and suppressed "coffee-ring" effects for fluorescence immunoassays. NANOSCALE 2015; 7:18453-18458. [PMID: 26505964 DOI: 10.1039/c5nr06070b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A glass slide was first patterned with hydrophobic hexadecyltrimethoxysilane (HDS) and then microspotted with hydrophilic ZnO nanoparticles in an aminopropyltriethoxysilane (APS) matrix. The resulting HDS-ZnO-APS microarray could present the capability of suppressing the undesirable "coffee-ring" effects through its hydrophobic pattern so as to allow the fabrication of ZnO-APS testing microspots with a highly dense and uniform distribution. The lotus-like "self-cleaning" function could also be expected to effectively curb the cross contamination of multiple sample droplets. More importantly, the introduction of ZnO nanoparticles could endow the testing microspots with substrate-enhanced fluorescence leading to signal-amplification microarray fluorometry. The practical application of the developed HDS-ZnO-APS microarray was investigated by the sandwiched fluorometric immunoassays of human IgG, showing a linear detection range from 0.010 to 10.0 ng mL(-1). Such a throughput-improved fluorometric microarray could be tailored for probing multiple biomarkers in complicated media like serum or blood.
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Affiliation(s)
- Shuying Li
- Shandong Province Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, P. R. China.
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118
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Zhuang J, Tang D, Lai W, Xu M, Tang D. Target-induced nano-enzyme reactor mediated hole-trapping for high-throughput immunoassay based on a split-type photoelectrochemical detection strategy. Anal Chem 2015; 87:9473-80. [PMID: 26291091 DOI: 10.1021/acs.analchem.5b02676] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Photoelectrochemical (PEC) detection is an emerging and promising analytical tool. However, its actual application still faces some challenges like potential damage of biomolecules (caused by itself system) and intrinsic low-throughput detection. To solve the problems, herein we design a novel split-type photoelectrochemical immunoassay (STPIA) for ultrasensitive detection of prostate specific antigen (PSA). Initially, the immunoreaction was performed on a microplate using a secondary antibody/primer-circular DNA-labeled gold nanoparticle as the detection tag. Then, numerously repeated oligonucleotide sequences with many biotin moieties were in situ synthesized on the nanogold tag via RCA reaction. The formed biotin concatamers acted as a powerful scaffold to bind with avidin-alkaline phosphatase (ALP) conjugates and construct a nanoenzyme reactor. By this means, enzymatic hydrolysate (ascorbic acid) was generated to capture the photogenerated holes in the CdS quantum dot-sensitized TiO2 nanotube arrays, resulting in amplification of the photocurrent signal. To elaborate, the microplate-based immunoassay and the high-throughput detection system, a semiautomatic detection cell (installed with a three-electrode system), was employed. Under optimal conditions, the photocurrent increased with the increasing PSA concentration in a dynamic working range from 0.001 to 3 ng mL(-1), with a low detection limit (LOD) of 0.32 pg mL(-1). Meanwhile, the developed split-type photoelectrochemical immunoassay exhibited high specificity and acceptable accuracy for analysis of human serum specimens in comparison with referenced electrochemiluminescence immunoassay method. Importantly, the system was not only suitable for the sandwich-type immunoassay mode, but also utilized for the detection of small molecules (e.g., aflatoxin B1) with a competitive-type assay format.
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Affiliation(s)
- Junyang Zhuang
- Institute of Nanomedicine and Nanobiosensing, Key Laboratory of Analysis and Detection for Food Safety (MOE and Fujian Province), Department of Chemistry, Fuzhou University , Fuzhou 350108, People's Republic of China
| | - Dianyong Tang
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies, Chongqing University of Arts and Sciences , Chongqing 402160, People's Republic of China
| | - Wenqiang Lai
- Institute of Nanomedicine and Nanobiosensing, Key Laboratory of Analysis and Detection for Food Safety (MOE and Fujian Province), Department of Chemistry, Fuzhou University , Fuzhou 350108, People's Republic of China
| | - Mingdi Xu
- Institute of Nanomedicine and Nanobiosensing, Key Laboratory of Analysis and Detection for Food Safety (MOE and Fujian Province), Department of Chemistry, Fuzhou University , Fuzhou 350108, People's Republic of China
| | - Dianping Tang
- Institute of Nanomedicine and Nanobiosensing, Key Laboratory of Analysis and Detection for Food Safety (MOE and Fujian Province), Department of Chemistry, Fuzhou University , Fuzhou 350108, People's Republic of China
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119
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Pang X, Pan J, Gao P, Wang Y, Wang L, Du B, Wei Q. A visible light induced photoelectrochemical aptsensor constructed by aligned ZnO@CdTe core shell nanocable arrays/carboxylated g-C3N4 for the detection of Proprotein convertase subtilisin/kexin type 6 gene. Biosens Bioelectron 2015; 74:49-58. [PMID: 26119758 DOI: 10.1016/j.bios.2015.06.030] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/04/2015] [Accepted: 06/15/2015] [Indexed: 11/19/2022]
Abstract
It was reported that Proprotein convertase subtilisin/kexin type 6 (PCSK6) can promote the progression of rheumatoid arthritis to a higher aggressive status. In this work, a novel visible light induced photoelectrochemical (PEC) platform was designed to detect PCSK6 gene. ZnO@CdTe nanocable arrays/carboxylated g-C3N4 used as the PEC signal generator. Hexagonal ZnO nanorods grew on ITO electrode firstly. CdTe were then electrodeposited on the ZnO nanorods surface to enhance the photogenerated h(+)/e(-) separation efficiency. Carboxylated g-C3N4 was utilized to improve h(+)/e(-) separation efficiency and anchor the capture probes of PCSK6 gene by the covalent bonding effect. The 5' and 3' primers captured PCSK6 ssDNA by the specific recognition. The linear range was 10 pg/mL to 20.0 ng/mL with a detection limit of 2 pg/mL.
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Affiliation(s)
- Xuehui Pang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Jihong Pan
- Shandong Medicinal Biotechnology Centre, The Key Lab for Biotechnology Drugs of Ministry of Health, The Key Lab of Rare and Uncommon Disease, Jinan 250022, China
| | - Picheng Gao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Youying Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Liguo Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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120
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Zhao WW, Wang J, Zhu YC, Xu JJ, Chen HY. Quantum Dots: Electrochemiluminescent and Photoelectrochemical Bioanalysis. Anal Chem 2015; 87:9520-31. [DOI: 10.1021/acs.analchem.5b00497] [Citation(s) in RCA: 185] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Wei-Wei Zhao
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
| | - Jing Wang
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
| | - Yuan-Cheng Zhu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
| | - Jing-Juan Xu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu P.R. China
- Collaborative
Innovation Center of Functionalized Probes for Chemical Imaging in
Universities of Shandong, Shandong Normal University, Jinan 250014, Shandong P.R. China
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121
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Zhao WW, Han YM, Zhu YC, Zhang N, Xu JJ, Chen HY. DNA Labeling Generates a Unique Amplification Probe for Sensitive Photoelectrochemical Immunoassay of HIV-1 p24 Antigen. Anal Chem 2015; 87:5496-9. [DOI: 10.1021/acs.analchem.5b01360] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Wei-Wei Zhao
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Ying-Mei Han
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yuan-Cheng Zhu
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Nan Zhang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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122
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Shen Q, Han L, Fan G, Zhang JR, Jiang L, Zhu JJ. "Signal-on" photoelectrochemical biosensor for sensitive detection of human T-Cell lymphotropic virus type II DNA: dual signal amplification strategy integrating enzymatic amplification with terminal deoxynucleotidyl transferase-mediated extension. Anal Chem 2015; 87:4949-56. [PMID: 25871300 DOI: 10.1021/acs.analchem.5b00679] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel "signal-on" photoelectrochemical (PEC) biosensor for sensitive detection of human T-cell lymphotropic virus type II (HTLV-II) DNA was developed on the basis of enzymatic amplification coupled with terminal deoxynucleotidyl transferase (TdT)-mediated extension strategy. The intensity of the photocurrent signal was proportional to the concentration of the HTLV-II DNA-target DNA (tDNA) by dual signal amplification. In this protocol, GR-CdS:Mn/ZnS nanocomposites were used as photoelectric conversion material, while pDNA was used as the tDNA recognizing unit. Moreover, the TdT-mediated extension and the enzymatic signal amplification technique were used to enhance the sensitivity of detection. Using this novel dual signal amplification strategy, the prototype of PEC DNA sensor can detect as low as ∼0.033 fM of HTLV-II DNA with a linear range of 0.1-5000 fM, with excellent differentiation ability even for single-base mismatches. This PEC DNA assay opens a promising platform to detect various DNA targets at ultralow levels for early diagnoses of different diseases.
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Affiliation(s)
- Qingming Shen
- †Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, P. R. China
| | - Li Han
- †Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, P. R. China
| | - Gaochao Fan
- ‡State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Jian-Rong Zhang
- ‡State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Liping Jiang
- ‡State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Jun-Jie Zhu
- ‡State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
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123
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Li C, Wang H, Shen J, Tang B. Cyclometalated iridium complex-based label-free photoelectrochemical biosensor for DNA detection by hybridization chain reaction amplification. Anal Chem 2015; 87:4283-91. [PMID: 25816127 DOI: 10.1021/ac5047032] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Photoactive material is the most crucial factor which intimately determines analytical performances of the photoelectrochemical sensor. On the basis of the high affinity of dipyrido [3,2-a:2',3'-c] phenazine (dppz) with DNA helix, a novel photoactive intercalator, [(ppy)2Ir(dppz)](+)PF6(-)(ppy = 2-phenylpyridine and dppz = dipyrido [3,2-a:2',3'-c] phenazine) was prepared and characterized by UV-vis absorption spectroscopy, fluorescence spectroscopy, and cyclic voltammetry. The photoelectrochemical properties of the as-prepared iridium(III) complex immobilized on the ITO electrode was investigated. Either cathodic or anodic photocurrent generation can be observed when triethanolamine (TEOA) or dissolved O2 is used as a sacrificial electron donor/acceptor, respectively. The probable photocurrent-generation mechanisms are speculated. A highly sensitive iridium(III) complex-based photoelectrochemical sensor was proposed for DNA detection via hybridization chain reaction (HCR) signal amplification. Under optimal conditions, the biosensor was found to be linearly proportional to the logarithm of target DNA concentration in the range from 0.025 to 100 pmol L(-1) with a detection limit of 9.0 fmol L(-1) (3σ). Moreover, the proposed sensor displayed high selectivity and good reproducibility, demonstrating efficient and stable photoelectric conversion ability of the Ir(III) complex.
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Affiliation(s)
- Chunxiang Li
- †College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P.R. China.,‡Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Hongyang Wang
- ‡Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Jing Shen
- ‡Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Bo Tang
- †College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P.R. China
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124
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Li H, Mu Y, Yan J, Cui D, Ou W, Wan Y, Liu S. Label-Free Photoelectrochemical Immunosensor for Neutrophil Gelatinase-Associated Lipocalin Based on the Use of Nanobodies. Anal Chem 2015; 87:2007-15. [DOI: 10.1021/ac504589d] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Henan Li
- School of Chemistry
and Chemical Engineering, Southeast University, Nanjing 211189, People’s Republic of China
| | - Yawen Mu
- The Key Laboratory
of Developmental Genes and Human Disease, Ministry of Education, Institute
of Life Sciences, Southeast University, Nanjing 210000, People’s Republic of China
| | - Junrong Yan
- The Key Laboratory
of Developmental Genes and Human Disease, Ministry of Education, Institute
of Life Sciences, Southeast University, Nanjing 210000, People’s Republic of China
| | - Dongmei Cui
- School of Chemistry
and Chemical Engineering, Southeast University, Nanjing 211189, People’s Republic of China
| | - Weijun Ou
- Jiangsu Nanobody Engineering and Research
Center, Nantong 226010, People’s Republic of China
| | - Yakun Wan
- The Key Laboratory
of Developmental Genes and Human Disease, Ministry of Education, Institute
of Life Sciences, Southeast University, Nanjing 210000, People’s Republic of China
- Jiangsu Nanobody Engineering and Research
Center, Nantong 226010, People’s Republic of China
| | - Songqin Liu
- School of Chemistry
and Chemical Engineering, Southeast University, Nanjing 211189, People’s Republic of China
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