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Díez-Buitrago B, Fernández-San Argimiro FJ, Lorenzo J, Bijelic G, Briz N, Pavlov V. Design of a photoelectrochemical lab-on-a-chip immunosensor based on enzymatic production of quantum dots in situ. Analyst 2022; 147:3470-3477. [DOI: 10.1039/d0an01950j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a new photoelectrochemical immunoassay based on a microfluidic device. Its operation employs enzymatic generation of CdS quantum dots.
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Affiliation(s)
- Beatriz Díez-Buitrago
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014, Donostia San Sebastián, Spain
- Tecnalia, Basque Research and Technology Alliance (BRTA), Paseo Mikeletegi 2, 20009 Donostia-San Sebastián, Spain
| | | | - Jaione Lorenzo
- Tecnalia, Basque Research and Technology Alliance (BRTA), Paseo Mikeletegi 2, 20009 Donostia-San Sebastián, Spain
| | - Goran Bijelic
- Tecnalia, Basque Research and Technology Alliance (BRTA), Paseo Mikeletegi 2, 20009 Donostia-San Sebastián, Spain
| | - Nerea Briz
- Tecnalia, Basque Research and Technology Alliance (BRTA), Paseo Mikeletegi 2, 20009 Donostia-San Sebastián, Spain
| | - Valeri Pavlov
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014, Donostia San Sebastián, Spain
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2
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Dai S, Huang H, Liu S, Deng W, Tan Y, Xie Q. Au nanoclusters-decorated WO 3 nanorods for ultrasensitive photoelectrochemical sensing of Hg 2+. Analyst 2022; 147:5747-5753. [DOI: 10.1039/d2an01324j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Ultrasensitive photoelectrochemical sensing of Hg2+ is achieved using Au nanocluster-decorated WO3 nanorods as photoactive materials.
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Affiliation(s)
- Si Dai
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Hui Huang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Shihan Liu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Wenfang Deng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yueming Tan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Qingji Xie
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
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3
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Deng X, Yang X, Guan X, Song J, Wu S. Polydopamine nanospheres with multiple quenching effect on TiO 2/CdS:Mn for highly sensitive photoelectrochemical assay of tumor markers. Anal Bioanal Chem 2021; 413:2045-2054. [PMID: 33616685 DOI: 10.1007/s00216-020-03114-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/28/2020] [Accepted: 12/07/2020] [Indexed: 01/05/2023]
Abstract
A photoelectrochemical (PEC) immunosensing strategy based on the multiple quenching of polydopamine nanoparticles (PDA NPs) to Mn2+-doped CdS-modified TiO2 nanoparticles (TiO2/CdS:Mn) was designed for the highly sensitive detection of carcinoembryonic antigen (CEA). The uniform PDA NPs possessed good dispersibility, good biocompatibility, and abundant functional groups for biomolecule assembly. They also had unique photophysical properties, with light absorption spanning the visible to infrared light range. When the immune-recognition brought the PDA NPs close to the TiO2/CdS:Mn interface, the PDA NPs competed with TiO2/CdS:Mn to absorb light, consumed photoelectrons generated in the TiO2/CdS:Mn, and hindered the access of electron donors to photoactive materials. The contribution from these aspects thus led to a significant decrease in photocurrent. Benefiting from the multiple quenching mechanism, the PEC immunosensor showed high sensitivity for CEA detection. Under optimal conditions, a low detection limit of 0.02 pg/mL and a wide linear relationship from 0.1 pg/mL to 100 ng/mL were obtained. The immunoassay showed good reproducibility and stability, and good selectivity and high accuracy in serum sample analysis. In this regard, PEC immunosensors may have great application potential for screening tumor markers and the prevention and monitoring of serious diseases.
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Affiliation(s)
- Xunxun Deng
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, Liaoning, China
| | - Xinlan Yang
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, Liaoning, China
| | - Xingxing Guan
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, Liaoning, China
| | - Jie Song
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, Liaoning, China
| | - Shuo Wu
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, Liaoning, China.
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4
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Hu Q, Gan S, Bao Y, Zhang Y, Han D, Niu L. Electrochemically Controlled ATRP for Cleavage-Based Electrochemical Detection of the Prostate-Specific Antigen at Femtomolar Level Concentrations. Anal Chem 2020; 92:15982-15988. [PMID: 33225684 DOI: 10.1021/acs.analchem.0c03467] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
As a single-chain glycoprotein with endopeptidase activity, the prostate-specific antigen (PSA) is valuable as an informative serum marker in diagnosing, staging, and prognosis of prostate cancer. In this report, an electrochemical biosensor based on the target-induced cleavage of a specific peptide substrate (PSA peptide) is designed for the highly selective detection of PSA at the femtomolar level, using electrochemically controlled atom transfer radical polymerization (eATRP) as a method for signal amplification. The PSA peptides, without free carboxyl sites, are attached to the gold surface via the N-terminal cysteine residue. The target-induced cleavage of PSA peptides results in the generation of carboxyl sites, to which the alkyl halide initiator α-bromophenylacetic acid (BPAA) is linked via the Zr(IV) linkers. Subsequently, the potentiostatic eATRP of ferrocenylmethyl methacrylate (FcMMA, as the monomer) leads to the surface-initiated grafting of high-density ferrocenyl polymers. As a result, a large amount of Fc redox tags can be recruited for signal amplification, through which the limit of detection (LOD) for PSA can be down to 3.2 fM. As the recognition element, the PSA peptide is easy to synthesize, chemically and thermally stable, and low-cost. Without the necessity of enzyme or nanoparticle labels, the eATRP-based amplification method is easy to operate and low-cost. Results also show that the cleavage-based electrochemical PSA biosensor is highly selective and applicable to PSA detection in complex biological samples. In view of these merits, the integration of the eATRP-based amplification method into cleavage-based recognition is believed to hold great promise for the electrochemical detection of PSA in clinical applications.
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Affiliation(s)
- Qiong Hu
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Shiyu Gan
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yu Bao
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yuwei Zhang
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Dongxue Han
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Li Niu
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
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5
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Dai P, Ke J, Xie C, Wei L, Zhang Y, He Y, Chen L, Jin J. An off-on electrochemiluminescence detection for microRNAs based on TiO 2 nanotubes sensitized with gold nanoparticles as enhanced emitters. Anal Bioanal Chem 2020; 412:5779-5787. [PMID: 32648106 DOI: 10.1007/s00216-020-02800-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/09/2020] [Accepted: 07/01/2020] [Indexed: 11/28/2022]
Abstract
A sensitive electrochemiluminescence (ECL) assay for microRNAs (miRNAs) based on a semiconductor nanomaterial sensitized with noble-metal Au nanoparticles (NPs) is successfully developed. TiO2 nanotubes (NTs) were equipped with Au NPs to obtain an enhanced ECL emitter. Then, an ECL assay for miRNA-21 was fabricated, which was based on the use of probe 2 DNA-functionalized Pt/PAMAM nanocomposites (NCs) assembled on the surface of Au/TiO2 NT conjugate via DNA hybridization between probe 1 DNA and capture DNA. The Pt/PAMAM NCs act as an ECL quencher of Au/TiO2 NTs via resonance energy transfer. After the binding of target miRNA-21 and the capture DNA, the Pt/PAMAM NCs were released and the ECL signal was recovered. An "off-on" ECL assay was achieved with a linear response from 0.01 to 10,000 pM. Finally, this method has been validated to be sensitive and specific for miRNAs in human serum samples. The ECL enhancement strategy opens a new way for fabricating various sensitive biosensors. Graphical abstract A sensitive "off-on" electrochemiluminescence analysis method was developed, which combined Au NP-enhanced ECL emission of TiO2 nanotubes and an efficient energy-transfer system between Au/TiO2 nanotubes and Pt/PAMAM nanocomposites.
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Affiliation(s)
- Panpan Dai
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China.
| | - Jiajun Ke
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China
| | - Chenggen Xie
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China
| | - Liyun Wei
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China
| | - Ying Zhang
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China
| | - Yong He
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China
| | - Lijuan Chen
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China
| | - Juncheng Jin
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China
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6
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Cao JT, Ma Y, Lv JL, Ren SW, Liu YM. A potentiometric resolved photoelectrochemical system based on CdS nanowires and SnNb2O6 nanosheets: a case application for dual biomarker analysis. Chem Commun (Camb) 2020; 56:1513-1516. [DOI: 10.1039/c9cc09102e] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A potentiometric-resolved PEC immunosensor was developed for dual-target detection.
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Affiliation(s)
- Jun-Tao Cao
- College of Chemistry and Chemical Engineering
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Yan Ma
- College of Chemistry and Chemical Engineering
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Jing-Lu Lv
- College of Chemistry and Chemical Engineering
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | | | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
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7
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An CuInS 2 photocathode for the sensitive photoelectrochemical determination of microRNA-21 based on DNA-protein interaction and exonuclease III assisted target recycling amplification. Mikrochim Acta 2019; 186:692. [PMID: 31605242 DOI: 10.1007/s00604-019-3804-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 09/07/2019] [Indexed: 01/15/2023]
Abstract
A photocathode is described for the determination of microRNA-21 by using CuInS2 as an active photocathode material. Exonuclease III assisted target recycling amplification was employed to enhance the detection sensitivity. The TATA-binding protein (TBP) was applied to enhance steric hindrance which decreases the photoelectrochemical intensity. This strategy is designed by combining the anti-interference photocathode material, enzyme assisted target recycling amplification and TBP induced signal off, showing remarkable amplification efficiency. Under the optimized conditions, the detection limit for microRNA-21 is as low as 0.47 fM, and a linear range was got from 1.0 × 10-15 M to 1.0 × 10-6 M. Graphical abstract Schematic representation of sensitive photoelectrochemical detection of microRNA-21.CuInS2 is used as an active photocathode material. Combined Exonuclease III assisted target recycling amplification and TATA-binding protein decreased of photoelectrochemical intensity, the detection limit was 0.47 fM with good selectivity. (miR-21: microRNA-21; CS: chitosan).
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8
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Ge L, Liu Q, Hao N, Kun W. Recent developments of photoelectrochemical biosensors for food analysis. J Mater Chem B 2019; 7:7283-7300. [DOI: 10.1039/c9tb01644a] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent developments of photoelectrochemical biosensors for food analysis are summarized and the future prospects in this field are discussed.
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Affiliation(s)
- Lan Ge
- Key Laboratory of Modern Agriculture Equipment and Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Qian Liu
- Key Laboratory of Modern Agriculture Equipment and Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Nan Hao
- Key Laboratory of Modern Agriculture Equipment and Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Wang Kun
- Key Laboratory of Modern Agriculture Equipment and Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
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9
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Cao JT, Zhang WS, Wang H, Ma SH, Liu YM. A novel fluorescence immunosensor based on Förster resonance energy transfer between nitrogen and sulfur co-doped carbon dot functionalized silica nanospheres and Au@Ag NPs. NEW J CHEM 2019. [DOI: 10.1039/c8nj05349a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A fluorescence immunosensor for PSA detection was developed based on the FRET between Si/NS-CDs and Au@Ag NPs.
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Affiliation(s)
- Jun-Tao Cao
- College of Chemistry and Chemical Engineering
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Wen-Sheng Zhang
- College of Chemistry and Chemical Engineering
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Hui Wang
- College of Chemistry and Chemical Engineering
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Shu-Hui Ma
- Xinyang Central Hospital
- Xinyang 464000
- China
| | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
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10
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Li Y, Chen F, Luan Z, Zhang X. A versatile cathodic "signal-on" photoelectrochemical platform based on a dual-signal amplification strategy. Biosens Bioelectron 2018; 119:63-69. [PMID: 30099233 DOI: 10.1016/j.bios.2018.07.068] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/27/2018] [Accepted: 07/30/2018] [Indexed: 01/01/2023]
Abstract
Novel cathodic photoelectrochemical (PEC) aptasensors for sensitive and selective determination of thrombin and Pb2+ were developed based on a new dual-signal amplification strategy. The presence of gold nanoparticles (AuNPs) could quench the PEC signal of bismuth oxyiodide (BiOI). At the same time, the redox moiety G-quadruplex/hemin or ferrocene (Fc) was found to enhance the PEC signal of BiOI. So, in the presence of thrombin or Pb2+, the interaction between target and the aptamer resulted in the releasement of the AuNPs, as well as shorter distance between the redox moiety and the electrode surface. Hence dual-enhanced cathodic PEC biosensor strategy was realized. Under the optimized conditions, the detection limits of thrombin and Pb2+ were 17.3 fM and 3.16 pM, respectively with good selectivity. At the same time, the PEC performance of redox moiety G-quadruplex/hemin and Fc was compared.
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Affiliation(s)
- Ying Li
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Scienceand Technology, Qingdao 266042, PR China
| | - Fengting Chen
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Scienceand Technology, Qingdao 266042, PR China
| | - Zhenzhu Luan
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Scienceand Technology, Qingdao 266042, PR China
| | - Xiaoru Zhang
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Scienceand Technology, Qingdao 266042, PR China; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Scienceand Technology, Qingdao 266042, PR China..
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11
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Gong YT, Yuan F, Dong Y, Li Z, Wang GL. Switched photoelectrochemistry of carbon dots for split-type immunoassay. Anal Chim Acta 2018. [DOI: 10.1016/j.aca.2018.02.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Ai Y, Li X, Zhang L, Zhong W, Wang J. Highly sensitive electrochemiluminescent immunoassay for neuron-specific enolase amplified by single-walled carbon nanohorns and enzymatic biocatalytic precipitation. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.04.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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13
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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, Jiangsu 210023, P.R. China
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - 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, 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, Jiangsu 210023, P.R. China
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14
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Zhou Q, Lin Y, Shu J, Zhang K, Yu Z, Tang D. Reduced graphene oxide-functionalized FeOOH for signal-on photoelectrochemical sensing of prostate-specific antigen with bioresponsive controlled release system. Biosens Bioelectron 2017. [PMID: 28646718 DOI: 10.1016/j.bios.2017.06.033] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A new and signal-on photoelectrochemical (PEC) sensing platform was successfully designed for the sensitive detection of prostate-specific antigen (PSA), using reduced graphene oxide- functionalized iron oxyhydroxide (FeOOH-rGO) as the photoactive material, accompanying target-responsive controlled release system to achieve the signal amplification. Introduction of rGO as electron mediator greatly facilitated the electron transfer from FeOOH to electrode under visible light, which inhibited the electron-hole recombination to enhance the photo-activity of FeOOH-rGO. Additionally, the bioresponsive release system was controlled via the reaction of target PSA with the aptamer capped glucose-loading mesoporous silica nanoparticle (MSN) to release numerous glucose molecules (as the electron donors) for the amplification of the photocurrent generated from FeOOH-rGO. Thus, more glucose molecules could be released and enhanced photocurrents could be obtained with the increasing PSA concentrations. Experimental results showed that the photocurrents of the PEC sensing platform were linearly dependent on the logarithm of PSA concentrations from 1.0pg/mL to 100ng/mL. Moreover, the PEC sensing system afforded good stability and specificity, and its accuracy matched well with the commercial PSA enzyme-linked immunosorbent assay (ELISA) kit. The excellent performance of the PEC sensing platform indicated its promising prospect as a useful tool for PSA detection in practical application.
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Affiliation(s)
- Qian Zhou
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education and Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Youxiu Lin
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education and Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Jian Shu
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education and Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Kangyao Zhang
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education and Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Zhenzhong Yu
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education and Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Dianping Tang
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education and Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China.
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15
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Gao C, Wang Y, Yuan S, Xue J, Cao B, Yu J. Engineering anatase hierarchically cactus-like TiO 2 arrays for photoelectrochemical and visualized sensing platform. Biosens Bioelectron 2017; 90:336-342. [DOI: 10.1016/j.bios.2016.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/22/2016] [Accepted: 12/01/2016] [Indexed: 02/08/2023]
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16
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Yuan F, Gu TT, Li XQ, Wang GL. Split photoelectrochemistry for the immunoassay of α-fetoprotein based on graphitic carbon nitride. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.11.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Cui M, Yu R, Wang X, Zhou H, Liu J, Zhang S. Novel graphene/Au-CdS:Eu composite-based electrochemiluminescence immunosensor for cancer biomarker detection by coupling resonance energy transfer and enzyme catalytic reaction. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.06.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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18
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Ju HX, Zhuang QK, Long YT. The Preface. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.11.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Xu F, Zhu YC, Ma ZY, Zhao WW, Xu JJ, Chen HY. An ultrasensitive energy-transfer based photoelectrochemical protein biosensor. Chem Commun (Camb) 2016; 52:3034-7. [PMID: 26790604 DOI: 10.1039/c5cc09963c] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Using single stranded DNA (ssDNA) as a distance controller and Au nanoparticles (NPs) functionalized with ssDNA as novel energy-transfer nanoprobes, an ultrasensitive energy-transfer based photoelectrochemical protein biosensor was realized.
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Affiliation(s)
- Fei Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China.
| | - Yuan-Cheng Zhu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China.
| | - Zheng-Yuan Ma
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China.
| | - Wei-Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China.
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China.
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China.
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20
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Zhao WW, Yu XD, Xu JJ, Chen HY. Recent advances in the use of quantum dots for photoelectrochemical bioanalysis. NANOSCALE 2016; 8:17407-17414. [PMID: 27738694 DOI: 10.1039/c6nr05011e] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Photoelectrochemical (PEC) bioanalysis is a newly developed technique for innovative biomolecular detection. Quantum dots (QDs) with unique photophysical properties are key components in realization of various exquisite PEC bioanalyses. Particularly, significant progress has been made in the QD-based PEC bioanalysis. In this work, we briefly summarize the most recent and important developments in the use of traditional and newly emerging QDs for novel PEC bioanalytical applications. The future prospects in this dynamic field are also highlighted.
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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 210023, Jiangsu, P.R. China.
| | - Xiao-Dong Yu
- 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 210023, 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 210023, 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 210023, Jiangsu, P.R. China.
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21
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A triple-amplification SPR electrochemiluminescence assay for chloramphenicol based on polymer enzyme-linked nanotracers and exonuclease-assisted target recycling. Biosens Bioelectron 2016; 86:477-483. [PMID: 27434234 DOI: 10.1016/j.bios.2016.07.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/29/2016] [Accepted: 07/04/2016] [Indexed: 11/23/2022]
Abstract
The present study aimed to explore a novel triple-amplification electrochemiluminescence (ECL) assay for detecting of chloramphenicol (CAP). This strategy was based on single-stranded DNA-binding protein (SSB) and horseradish peroxidase (HRP) enzyme-linked polymer (EnVision reagent, EV) labeled on Au nanoparticles (EV-Au-SSB) as nanotracer and exonuclease-assisted target recycling. The composite probes were prepared via immunoreactions between the CdS nanocrystal (CdS NC)-functionalized partial complementary DNA and aptamer (CdSNCs/Apt-ssDNA1) as capture probes, and EV-Au-SSB as nanotracer. When the composite probe solution co-existed with CAP and Exo I, the aptamer on the capture probes preferentially combined with CAP, and then CAP-Apt and nanotracer complex were released into the solution. Subsequently, Exo I in the solution could further digest the CAP-Apt from the 3'-end of the aptamer and release CAP, which could participate in further reaction with the probes. It was worth mentioning that EV contained a large number of HRPs on its dendritic chain. In the EV-Au-SSB, Au could enhance ECL intensity of CdS NCs by surface plasmon resonance. What's more, HRPs on EV could catalyze the reaction of H2O2, which could obviously enhance ECL intensity of CdS NCs. This study demonstrated excellent performance of the triple-amplification ECL assay, which makes this aptasensor system suitable and promising for the practical application of CAP residues in fish samples. Moreover, the assay might provide a promising avenue to develop efficient aptasensors to determine small-molecule harmful substances in environmental monitoring and food safety.
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22
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Using silver nanocluster/graphene nanocomposite to enhance photoelectrochemical activity of CdS:Mn/TiO2 for highly sensitive signal-on immunoassay. Biosens Bioelectron 2016; 80:614-620. [DOI: 10.1016/j.bios.2016.02.030] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 02/01/2016] [Accepted: 02/10/2016] [Indexed: 12/24/2022]
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23
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Gong L, Dai H, Zhang S, Lin Y. Silver Iodide-Chitosan Nanotag Induced Biocatalytic Precipitation for Self-Enhanced Ultrasensitive Photocathodic Immunosensor. Anal Chem 2016; 88:5775-82. [DOI: 10.1021/acs.analchem.6b00297] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Lingshan Gong
- College of Chemistry and
Chemical Engineering, Fujian Normal University, Fuzhou 350108, P. R. China
| | - Hong Dai
- College of Chemistry and
Chemical Engineering, Fujian Normal University, Fuzhou 350108, P. R. China
| | - Shupei Zhang
- College of Chemistry and
Chemical Engineering, Fujian Normal University, Fuzhou 350108, P. R. China
| | - Yanyu Lin
- College of Chemistry and
Chemical Engineering, Fujian Normal University, Fuzhou 350108, P. R. China
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24
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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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25
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Han D, Ma W, Wang L, Ni S, Zhang N, Wang W, Dong X, Niu L. Design of two electrode system for detection of antioxidant capacity with photoelectrochemical platform. Biosens Bioelectron 2016; 75:458-64. [DOI: 10.1016/j.bios.2015.08.066] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/21/2015] [Accepted: 08/28/2015] [Indexed: 11/24/2022]
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26
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Li Y, Dai H, Zhang Q, Zhang S, Chen S, Hong Z, Lin Y. In situ generation of electron acceptor to amplify the photoelectrochemical signal from poly(dopamine)-sensitized TiO2 signal crystal for immunoassay. J Mater Chem B 2016; 4:2591-2597. [DOI: 10.1039/c5tb02525g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photoelectrochemical protocol was designed for quantitative monitoring of tumor markers by utilizing poly(dopamine)-sensitized TiO2 signal crystal.
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Affiliation(s)
- Yilin Li
- College of Chemistry and Chemical Engineering
- Fujian Normal University
- Fuzhou
- China
| | - Hong Dai
- College of Chemistry and Chemical Engineering
- Fujian Normal University
- Fuzhou
- China
| | - Qingrong Zhang
- College of Chemistry and Chemical Engineering
- Fujian Normal University
- Fuzhou
- China
| | - Shupei Zhang
- College of Chemistry and Chemical Engineering
- Fujian Normal University
- Fuzhou
- China
| | - Sihong Chen
- College of Chemistry and Chemical Engineering
- Fujian Normal University
- Fuzhou
- China
| | - Zhensheng Hong
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
- College of Physics and Energy
- Fujian Normal University
- Fuzhou 350108
- P. R. China
| | - Yanyu Lin
- College of Chemistry and Chemical Engineering
- Fujian Normal University
- Fuzhou
- China
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27
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Li R, Yan R, Bao J, Tu W, Dai Z. A localized surface plasmon resonance-enhanced photoelectrochemical biosensing strategy for highly sensitive and scatheless cell assay under red light excitation. Chem Commun (Camb) 2016; 52:11799-11802. [DOI: 10.1039/c6cc05964c] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In this work, a novel photoelectrochemical biosensing strategy was designed for cell assay under 630 nm (red light) excitation.
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Affiliation(s)
- Ruyan Li
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Rong Yan
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Jianchun Bao
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Wenwen Tu
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Zhihui Dai
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
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28
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Reprint of "Cathode photoelectrochemical immunoassay based on analyte- induced formation of exciton trapping for carcinoembryonic antigen detection". J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.11.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Wen G, Yang X, Xi X. Cathode photoelectrochemical immunoassay based on analyte-induced formation of exciton trapping for carcinoembryonic antigen detection. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.09.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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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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31
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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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32
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Ma W, Wang L, Zhang N, Han D, Dong X, Niu L. Biomolecule-free, selective detection of o-diphenol and its derivatives with WS2/TiO2-based photoelectrochemical platform. Anal Chem 2015; 87:4844-50. [PMID: 25844499 DOI: 10.1021/acs.analchem.5b00315] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Herein, a novel photoelectrochemical platform with WS2/TiO2 composites as optoelectronic materials was designed for selective detection of o-diphenol and its derivatives without any biomolecule auxiliary. First, catechol was chosen as a model compound for the discrimination from resorcinol and hydroquinone; then several o-diphenol derivatives such as dopamine, caffeic acid, and catechin were also detected by employing this proposed photoelectrochemical sensor. Finally, the mechanism of such a selective detection has been elaborately explored. The excellent selectivity and high sensitivity should be attributed to two aspects: (i) chelate effect of adjacent double oxygen atoms in the o-diphenol with the Ti(IV) surface site to form a five/six-atom ring structure, which is considered as the key point for distinction and selective detection. (ii) This selected WS2/TiO2 composites with proper band level between WS2 and TiO2, which could make the photogenerated electron and hole easily separated and results in great improvement of sensitivity. By employing such a photoelectrochemical platform, practical samples including commercial clinic drugs and human urine samples have been successfully performed for dopamine detection. This biomolecule-free WS2/TiO2 based photoelectrochemical platform demonstrates excellent stability, reproducibility, remarkably convenient, and cost-effective advantages, as well as low detection limit (e.g., 0.32 μmol L(-1) for dopamine). It holds great promise to be applied for detection of o-diphenol kind species in environment and food fields.
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Affiliation(s)
- Weiguang Ma
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China.,‡University of Chinese Academy of Sciences, Beijing 100039, China
| | - Lingnan Wang
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China.,‡University of Chinese Academy of Sciences, Beijing 100039, China
| | - Nan Zhang
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China.,‡University of Chinese Academy of Sciences, Beijing 100039, China
| | - Dongxue Han
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China
| | - Xiandui Dong
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China
| | - Li Niu
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China
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33
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Yang Z, Wang F, Wang M, Yin H, Ai S. A novel signal-on strategy for M.SssI methyltransfease activity analysis and inhibitor screening based on photoelectrochemical immunosensor. Biosens Bioelectron 2015; 66:109-14. [DOI: 10.1016/j.bios.2014.11.015] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 11/09/2014] [Accepted: 11/10/2014] [Indexed: 12/11/2022]
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34
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Zhou H, Liu J, Zhang S. Quantum dot-based photoelectric conversion for biosensing applications. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.12.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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35
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Ultrasensitive photoelectrochemical immunoassay through tag induced exciton trapping. Talanta 2015; 134:496-500. [DOI: 10.1016/j.talanta.2014.11.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/17/2014] [Accepted: 11/19/2014] [Indexed: 01/25/2023]
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36
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Wang GL, Shu JX, Dong YM, Wu XM, Zhao WW, Xu JJ, Chen HY. Using G-Quadruplex/Hemin To “Switch-On” the Cathodic Photocurrent of p-Type PbS Quantum Dots: Toward a Versatile Platform for Photoelectrochemical Aptasensing. Anal Chem 2015; 87:2892-900. [DOI: 10.1021/ac5043945] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Guang-Li Wang
- The
Key Laboratory of Food Colloids and Biotechnology, Ministry of Education,
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China
- State
Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Jun-Xian Shu
- The
Key Laboratory of Food Colloids and Biotechnology, Ministry of Education,
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Yu-Ming Dong
- The
Key Laboratory of Food Colloids and Biotechnology, Ministry of Education,
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Xiu-Ming Wu
- The
Key Laboratory of Food Colloids and Biotechnology, Ministry of Education,
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Wei-Wei Zhao
- State
Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Jing-Juan Xu
- State
Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093, Jiangsu, China
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37
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Wang Q, Xu N, Gui Z, Lei J, Ju H, Yan F. Strand displacement activated peroxidase activity of hemin for fluorescent DNA sensing. Analyst 2015; 140:6532-7. [PMID: 26295460 DOI: 10.1039/c5an01206f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The toehold-mediated DNA strand displacement was utilized to regulate the catalytic activity of the peroxidase mimic hemin and design a fluorescent DNA sensing method with high specificity.
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Affiliation(s)
- Quanbo Wang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P.R. China
| | - Nan Xu
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P.R. China
| | - Zhen Gui
- Department of Clinical Laboratory
- Nanjing Medical University Cancer Hospital & Jiangsu Cancer Hospital
- Nanjing 210009
- P.R. China
| | - Jianping Lei
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P.R. China
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P.R. China
| | - Feng Yan
- Department of Clinical Laboratory
- Nanjing Medical University Cancer Hospital & Jiangsu Cancer Hospital
- Nanjing 210009
- P.R. China
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38
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Abstract
This review provides a panoramic snapshot of the state of the art in the dynamically developing field of photoelectrochemical bioanalysis.
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Affiliation(s)
- Wei-Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
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39
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Gao P, Ma H, Yang J, Wu D, Zhang Y, Du B, Fan D, Wei Q. Anatase TiO2 based photoelectrochemical sensor for the sensitive determination of dopamine under visible light irradiation. NEW J CHEM 2015. [DOI: 10.1039/c4nj01909a] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The sensitive photoelectrochemical determination of dopamine was achieved using an indium tin oxide electrode modified with TiO2 nanoparticles.
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Affiliation(s)
- Picheng Gao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Jiaojiao Yang
- 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
| | - Yong Zhang
- 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
| | - Dawei Fan
- 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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40
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Xie S, Zhang J, Yuan Y, Chai Y, Yuan R. An electrochemical peptide cleavage-based biosensor for prostate specific antigen detection via host–guest interaction between ferrocene and β-cyclodextrin. Chem Commun (Camb) 2015; 51:3387-90. [DOI: 10.1039/c4cc10363g] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Here we have developed a “signal-on” peptide cleavage-based assay for sensitive and specific detection of prostate specific antigen (PSA) by coupling the host–guest interaction between ferrocene (Fc) and β-cyclodextrin (β-CD).
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Affiliation(s)
- Shunbi Xie
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education (Southwest University)
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Jin Zhang
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies (Chongqing University of Arts and Sciences)
- Chongqing 400715
- P. R. China
| | - Yali Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education (Southwest University)
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education (Southwest University)
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education (Southwest University)
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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41
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Ma H, Yan T, Zhang Y, Gao P, Pang X, Du B, Wei Q. A biomimetic mussel-inspired photoelectrochemical biosensing chip for the sensitive detection of CD146. Analyst 2015; 140:5019-22. [DOI: 10.1039/c5an00873e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A universal biomimetic mussel-inspired photoelectrochemical biosensing chip was constructed by a polydopamine coating strategy.
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Affiliation(s)
- Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Tao Yan
- 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
| | - Picheng Gao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Xuehui Pang
- 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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42
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Fan GC, Han L, Zhu H, Zhang JR, Zhu JJ. Ultrasensitive photoelectrochemical immunoassay for matrix metalloproteinase-2 detection based on CdS:Mn/CdTe cosensitized TiO2 nanotubes and signal amplification of SiO2@Ab2 conjugates. Anal Chem 2014; 86:12398-405. [PMID: 25420143 DOI: 10.1021/ac504027d] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An ultrasensitive photoelectrochemical sandwich immunoassay was developed to detect matrix metalloproteinase-2 (MMP-2, antigen, Ag) based on CdS:Mn/CdTe cosensitized TiO2 nanotubes (TiO2-NTs) and signal amplification of SiO2@Ab2 conjugates. Specifically, the TiO2-NTs electrode was first deposited with CdS:Mn by successive ionic layer adsorption and reaction technique and then further coated with CdTe quantum dots (QDs) via the layer-by-layer method, forming TiO2-NTs/CdS:Mn/CdTe cosensitized structure, which was employed as a matrix to immobilize capture MMP-2 antibodies (Ab1); whereas, SiO2 nanoparticles were coated with signal MMP-2 antibodies (Ab2) to form SiO2@Ab2 conjugates, which were used as signal amplification elements via the specific antibody-antigen immunoreaction between Ag and Ab2. The ultrahigh sensitivity of this immunoassay derived from the two major reasons as below. First, the TiO2-NTs/CdS:Mn/CdTe cosensitized structure could adequately absorb the light energy, dramatically promote electron transfer, and effectively inhibit the electron-hole recombination, resulting in significantly enhanced photocurrent intensity of the sensing electrode. However, in the presence of target Ag, the immobilized SiO2@Ab2 conjugates could evidently increase the steric hindrance of the sensing electrode and effectively depress the electron transfer, leading to obviously decreased photocurrent intensity. Accordingly, the well-designed photoelectrochemical immunoassay exhibited a low detection limit of 3.6 fg/mL and a wide linear range from 10 fg/mL to 500 pg/mL for target Ag detection. Meanwhile, it also presented good reproducibility, specificity, and stability and might open a new promising platform for the detection of other important biomarkers.
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Affiliation(s)
- Gao-Chao Fan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, People's Republic of China
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43
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Zhao WW, Chen R, Dai PP, Li XL, Xu JJ, Chen HY. A General Strategy for Photoelectrochemical Immunoassay Using an Enzyme Label Combined with a CdS Quantum Dot/TiO2 Nanoparticle Composite Electrode. Anal Chem 2014; 86:11513-6. [DOI: 10.1021/ac503969e] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Wei-Wei Zhao
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Ru Chen
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Pan-Pan Dai
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Xiang-Ling Li
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China
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44
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Zhang X, Liu M, Mao Y, Xu Y, Niu S. Ultrasensitive photoelectrochemical immunoassay of antibody against tumor-associated carbohydrate antigen amplified by functionalized graphene derivates and enzymatic biocatalytic precipitation. Biosens Bioelectron 2014; 59:21-7. [DOI: 10.1016/j.bios.2014.02.071] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 01/20/2023]
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45
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Affiliation(s)
- Wei-Wei Zhao
- State Key
Laboratory of Analytical
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, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hong-Yuan Chen
- State Key
Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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46
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Investigation of the effect of phytohormone on the expression of microRNA-159a in Arabidopsis thaliana seedlings based on mimic enzyme catalysis systematic electrochemical biosensor. Biosens Bioelectron 2014; 54:244-50. [DOI: 10.1016/j.bios.2013.11.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 10/31/2013] [Accepted: 11/06/2013] [Indexed: 12/14/2022]
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47
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Zeng X, Bao J, Han M, Tu W, Dai Z. Quantum dots sensitized titanium dioxide decorated reduced graphene oxide for visible light excited photoelectrochemical biosensing at a low potential. Biosens Bioelectron 2014; 54:331-8. [DOI: 10.1016/j.bios.2013.10.057] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 10/26/2013] [Accepted: 10/28/2013] [Indexed: 11/28/2022]
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48
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Zhao WW, Liu Z, Shan S, Zhang WW, Wang J, Ma ZY, Xu JJ, Chen HY. Bismuthoxyiodide nanoflakes/titania nanotubes arrayed p-n heterojunction and its application for photoelectrochemical bioanalysis. Sci Rep 2014; 4:4426. [PMID: 24651880 PMCID: PMC3961734 DOI: 10.1038/srep04426] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 03/05/2014] [Indexed: 11/29/2022] Open
Abstract
We have developed sensitive detection of cancer biomarker vascular endothelial growth factor (VEGF) using the p-n heterojunction comprised of p-type BiOI nanoflakes (NFs) array and n-type TiO2 nanotubes (NTs) array. Due to the unique arrayed structure and the synergy effect of photoelectrochemistry in the formed p-n junction, the synthesized configuration has superior excitation efficiency and thus excellent photoresponsibility. Then, the fabricated p-n heterojunction was integrated with an exquisite bioassay protocol for addressing VEGF using a sandwich immunoassay with glucosedehydrogenase (GDH) as the enzyme tags. Due to the excellent performance of BiOI NFs array/TiO2 NTs array and the ingenious signaling mechanism, the proposed system could achieve the sensitive and specific VEGF detection. This work not only presents a simple BiOI NFs array/TiO2 NTs array p-n heterojunction for general applications in the broad photochemistry areas, but also opens a different horizon for current development of advanced PEC biomolecular detection.
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Affiliation(s)
- Wei-Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Zhao Liu
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Shu Shan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Wen-Wen Zhang
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Jing Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Zheng-Yuan Ma
- State Key Laboratory of Analytical 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, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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49
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Wang W, Hao Q, Wang W, Bao L, Lei J, Wang Q, Ju H. Quantum dot-functionalized porous ZnO nanosheets as a visible light induced photoelectrochemical platform for DNA detection. NANOSCALE 2014; 6:2710-2717. [PMID: 24457595 DOI: 10.1039/c3nr04777f] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This work reports the synthesis of novel CdTe quantum dot (QD)-functionalized porous ZnO nanosheets via a covalent binding method with (3-aminopropyl)triethoxysilane as a linker. The functional nanosheets showed an excellent visible-light absorbency and much higher photoelectrochemical activity than both CdTe QDs and ZnO nanosheets due to the porous structure and appropriate band alignment between the CdTe QDs and ZnO nanosheets. Using hydrogen peroxide as an electron acceptor the nanosheet-modified electrode showed a sensitive photocurrent response. This speciality led to a novel methodology for the design of hydrogen peroxide-related biosensors by the formation or consumption of hydrogen peroxide. Using biotin-labeled DNA as capture probe, a model biosensor was proposed by immobilizing the probe on a nanosheet-modified electrode to recognize target DNA in the presence of an assistant DNA, which produced a "Y" junction structure to trigger a restriction endonuclease-aided target recycling. The target recycling resulted in the release of biotin labeled to the immobilized DNA from the nanosheet-modified electrode, thus decreased the consumption of hydrogen peroxide by horseradish peroxidase-mediated electrochemical reduction after binding the left biotin with horseradish peroxidase-labeled streptavidin, which produced an increasing photoelectrochemical response. The 'signal on' strategy for photoelectrochemical detection of DNA showed a low detection limit down to the subfemtomole level and good specificity to single-base mismatched oligonucleotides. The sensitized porous ZnO nanosheets are promising for applications in both photovoltaic devices and photoelectrochemical biosensing.
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Affiliation(s)
- Wenjing Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P.R. China.
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50
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Wang S, Zhu Y, Yang X, Li C. Photoelectrochemical Detection of H2O2Based on Flower-Like CuInS2-Graphene Hybrid. ELECTROANAL 2014. [DOI: 10.1002/elan.201300515] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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