1
|
Wang Y, Dai S, Liu T, Wu C, Sun M, Su G, Ye J, Wang X, He J, Rao H, Lu Z. Sulfur vacancy defects mediated CdZnTeS@BC heterojunction: Artificial intelligence-assisted self-enhanced electrochemiluminescence molecularly imprinted sensing of CTC. Biosens Bioelectron 2024; 248:115941. [PMID: 38160634 DOI: 10.1016/j.bios.2023.115941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/09/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Environmental pollution caused by tetracycline antibiotics is a major concern of global public health. Here, a novel and portable molecularly imprinted electrochemiluminescence (MIECL) sensor based on smartphones for highly sensitive detection of chlortetracycline (CTC) has been successfully established. The high-performance ECL emitter of biomass carbon (BC) encapsulated CdZnTeS (CdZnTeS@BC) was successfully synthesized by hydrothermal. The enhanced ECL performance was ascribed to the introduction of the BC and increased the overall electrical conductivity of the nanoemitter, as well as increased the number of sulfur vacancies and doping on the surface of the emitter based on density functional theory calculations. An aniline-CTC molecular imprinted polymer was synthesized on the surface of the CdZnTeS@BC modified electrode by in-situ electropolymerization. The decrease in MIECL signal was attributed to the increase in impedance effect. The MIECL nanoplatform enabled a wide linear relationship in the range of 0.05-100 μmol/L with a detection limit of 0.029 μmol/L for spectrometer sensors. Interestingly, the light emitted during the MIECL reaction can be captured by a smartphone. Thus, machine learning was used to screen the photos that were taken, and color analysis was carried out on the screened photos by self-developed software, thus achieving a portable, convenient, and intelligent sensing mode. Finally, the sensor obtains satisfactory results in the detection of actual samples, with no significant differences from those of liquid chromatography.
Collapse
Affiliation(s)
- Yanying Wang
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China
| | - Shijie Dai
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China
| | - Tao Liu
- College of Information Engineering, Sichuan Agricultural University, Xinkang Road, Yucheng District, Ya'an 625014, PR China
| | - Chun Wu
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China
| | - Mengmeng Sun
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China
| | - Gehong Su
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China
| | - Jianshan Ye
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, PR China
| | - Xianxing Wang
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China
| | - Jie He
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China
| | - Hanbing Rao
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China.
| | - Zhiwei Lu
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, PR China.
| |
Collapse
|
2
|
Shen Y, Gao X, Lu HJ, Nie C, Wang J. Electrochemiluminescence-based innovative sensors for monitoring the residual levels of heavy metal ions in environment-related matrices. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
3
|
Reusable molecularly imprinted electrochemiluminescence assay for kanamycin based on ordered mesoporous carbon loaded with indium oxide nanoparticles and carbon quantum dots. Mikrochim Acta 2022; 189:431. [DOI: 10.1007/s00604-022-05527-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 10/04/2022] [Indexed: 11/26/2022]
|
4
|
Song Q, Shan X, Bu L, Dai A, Jiang D, Wang W, Shiigi H, Chen Z. An electrochemiluminescence resonance energy aptasensor based on Ag3PO4-UiO-66 for ultrasensitive detection of diethylstilbestrol. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
5
|
Meng Y, Pu J, Gan J, Li J. Molecularly imprinted electrochemiluminescence sensor based on ZIF-8 doped with CdSe quantum dots for the detection of trace estriol. LUMINESCENCE 2022; 37:1109-1119. [PMID: 35470931 DOI: 10.1002/bio.4264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/19/2022] [Accepted: 04/21/2022] [Indexed: 11/08/2022]
Abstract
A composite of the metal-organic framework compound ZIF-8 doped with CdSe quantum dots (QDs) with sensitive and stable luminescence was synthesized, and a molecularly imprinted electrochemiluminescence (ECL) sensor was constructed on the basis of this composite. The ZIF-8@CdSe molecularly imprinted ECL sensor combines the high sensitivity of ECL and the high selectivity of molecular imprinting to realize the sensitive and specific detection of estriol. CdSe QDs and gold nanoparticles were encapsulated within ZIF-8 to obtain the ZIF-8@CdSe QDs/GNP (ZIF@CdSe/GNP) composite. Subsequently, the GNPs were further loaded on the surface of this composite to obtain the GNP/ZIF@CdSe/GNP composite. L-cysteine was used to immobilize the GNP/ZIF@CdSe/GNP composite on the surface of a gold electrode to obtain the GNP/ZIF@CdSe/GNP-modified gold electrode. A molecularly imprinted polymer (MIP) film was prepared on the surface of the modified electrode via electropolymerization with o-phenylenediamine as the functional monomer and estriol as the template molecule. After elution, estriol could be specifically recognized by the cavities. The re-adsoption of estriol by the MIP can prevent the coreactant from reaching the electrode surface through the cavities, thereby weakening ECL. A good linear relationship existed between the ∆ECL and lg C of estriol concentrations of 1 × 10-14 - 1 × 10-9 mol·L-1 . The detection limit was as low as 8.9 × 10-16 mol·L-1 . The sensor was applied in the determination of estriol in serum samples with a recovery of 97.0 % - 102 %.
Collapse
Affiliation(s)
- Yongjuan Meng
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Jinling Pu
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Jiamei Gan
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Jianping Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China.,College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| |
Collapse
|
6
|
Ling J, Wei G, Li J. A highly sensitive and selective molecularly imprinted sensor for direct determination of ultra‐trace Cr(III) in environmental samples. ChemistrySelect 2022. [DOI: 10.1002/slct.202104521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jun Ling
- College of Environmental Science and Engineering Guilin University of Technology Guilin 541004 China
| | - Ge Wei
- GRG Metrology & Test (Nanning) Co., Ltd. Nanning 530000 China
| | - Jianping Li
- College of Environmental Science and Engineering Guilin University of Technology Guilin 541004 China
- College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 China
| |
Collapse
|
7
|
Wen G, Xiao Y, Chen S, Zhang X, Jiang Z. A nanosol SERS/RRS aptamer assay of trace cobalt(ii) by covalent organic framework BtPD-loaded nanogold catalytic amplification. NANOSCALE ADVANCES 2021; 3:3846-3859. [PMID: 36133010 PMCID: PMC9417635 DOI: 10.1039/d1na00208b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/04/2021] [Indexed: 06/14/2023]
Abstract
The determination of heavy metal ions has always been a hot topic in the field of environmental analysis. In this study, a new covalent organic framework-loaded gold nanoparticle (AuCOF) nanocatalytic amplification signal strategy was developed to determine trace Co2+ in water. The COF of BtPD was synthesized from 1,3,5-benzene tricarboxaldehyde and p-phenylenediamine, and a new kind of AuBtPD nanosol was prepared by reduction of HAuCl4 to AuNPs on the BtPD carrier. It has strong catalysis of the new indicator reaction of sodium formate reducing HAuCl4 to AuNP sol with strong resonance Rayleigh scattering (RRS) at 370 nm and surface enhanced resonance Raman scattering (SERS) activity at 1614 cm-1 in the presence of a Victoria blue 4R (VB4R) molecular probe. Combining the nanocatalytic reaction to amplify the dual-scattering signals and specific aptamer (Apt) of cobalt ions, a new, fast, stable, sensitive and specific dual mode method for detecting Co2+ was established; the RRS signal I 370nm and SERS signal I 1614cm-1 show a linear relationship with the concentration of 0.033-1 nmol L-1 Co2+ and with a limit of detection (LOD) of 0.02 nmol L-1. The two methods have been applied to the determination of Co2+ in industrial wastewater, tap water and river water, and the results are satisfactory.
Collapse
Affiliation(s)
- Guiqing Wen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| | - Yang Xiao
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| | - Shuxin Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| | - Xinghui Zhang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guangxi China
- Key Laboratory of Environmental Pollution Control Theory and Technology Guilin 541004 China
| |
Collapse
|
8
|
Recent advances in electrochemiluminescence luminophores. Anal Bioanal Chem 2021; 414:131-146. [PMID: 33893832 DOI: 10.1007/s00216-021-03329-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/17/2021] [Accepted: 04/07/2021] [Indexed: 10/21/2022]
Abstract
Electrochemiluminescence (ECL) has continued to receive considerable attention in various applications, owing to its intrinsic advantages such as near-zero background response, wide dynamic range, high sensitivity, simple instrumentation, and low cost. The ECL luminophore is one of the most significant components during the light generation processes. Despite significant progress that has been made in the synthesis of new luminophores and their roles in resolving various challenges, there are few comprehensive summaries on ECL luminophores. In this review, we discuss some of the recent advances in organic, metal complexes, nanomaterials, metal oxides, and near-infrared ECL luminophores. We also emphasize their roles in tackling various challenges with illustrative examples that have been reported in the last few years. Finally, perspective and some unresolved challenges in ECL that can potentially be addressed by introducing new luminophores have also been discussed. Graphical abstract.
Collapse
|
9
|
Kusumkar VV, Galamboš M, Viglašová E, Daňo M, Šmelková J. Ion-Imprinted Polymers: Synthesis, Characterization, and Adsorption of Radionuclides. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1083. [PMID: 33652580 PMCID: PMC7956459 DOI: 10.3390/ma14051083] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/09/2021] [Accepted: 02/22/2021] [Indexed: 12/21/2022]
Abstract
Growing concern over the hazardous effect of radionuclides on the environment is driving research on mitigation and deposition strategies for radioactive waste management. Currently, there are many techniques used for radionuclides separation from the environment such as ion exchange, solvent extraction, chemical precipitation and adsorption. Adsorbents are the leading area of research and many useful materials are being discovered in this category of radionuclide ion separation. The adsorption technologies lack the ability of selective removal of metal ions from solution. This drawback is eliminated by the use of ion-imprinted polymers, these materials having targeted binding sites for specific ions in the media. In this review article, we present recently published literature about the use of ion-imprinted polymers for the adsorption of 10 important hazardous radionuclides-U, Th, Cs, Sr, Ce, Tc, La, Cr, Ni, Co-found in the nuclear fuel cycle.
Collapse
Affiliation(s)
- Vipul Vilas Kusumkar
- Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina Ilkovicova 6, 842 15 Bratislava, Slovakia;
| | - Michal Galamboš
- Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina Ilkovicova 6, 842 15 Bratislava, Slovakia;
| | - Eva Viglašová
- Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina Ilkovicova 6, 842 15 Bratislava, Slovakia;
| | - Martin Daňo
- Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehová 7, 115 19 Prague, Czech Republic;
| | - Jana Šmelková
- Department of Administrative Law and Environmental Law, Faculty of Law, Comenius University in Bratislava, Safarikovo namestie 6, 810 00 Bratislava, Slovakia;
| |
Collapse
|
10
|
Molecularly imprinted polymer-based electrochemical sensors for environmental analysis. Biosens Bioelectron 2020; 172:112719. [PMID: 33166805 DOI: 10.1016/j.bios.2020.112719] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 12/11/2022]
Abstract
The ever-increasing presence of contaminants in environmental waters is an alarming issue, not only because of their harmful effects in the environment but also because of their risk to human health. Pharmaceuticals and pesticides, among other compounds of daily use, such as personal care products or plasticisers, are being released into water bodies. This release mainly occurs through wastewater since the treatments applied in many wastewater treatment plants are not able to completely remove these substances. Therefore, the analysis of these contaminants is essential but this is difficult due to the great variety of contaminating substances. Facing this analytical challenge, electrochemical sensing based on molecularly imprinted polymers (MIPs) has become an interesting field for environmental monitoring. Benefiting from their superior chemical and physical stability, low-cost production, high selectivity and rapid response, MIPs combined with miniaturized electrochemical transducers offer the possibility to detect target analytes in-situ. In most reports, the construction of these sensors include nanomaterials to improve their analytical characteristics, especially their sensitivity. Moreover, these sensors have been successfully applied in real water samples without the need of laborious pre-treatment steps. This review provides a general overview of electrochemical MIP-based sensors that have been reported for the detection of pharmaceuticals, pesticides, heavy metals and other contaminants in water samples in the past decade. Special attention is given to the construction of the sensors, including different functional monomers, sensing platforms and materials employed to achieve the best sensitivity. Additionally, several parameters, such as the limit of detection, the linear concentration range and the type of water samples that were analysed are compiled.
Collapse
|
11
|
An effective phthalazine-imidazole-based chemosensor for detecting Cu2+, Co2+ and S2− via the color change. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119788] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
12
|
Rahtuvanoğlu A, Akgönüllü S, Karacan S, Denizli A. Biomimetic Nanoparticles Based Surface Plasmon Resonance Biosensors for Histamine Detection in Foods. ChemistrySelect 2020. [DOI: 10.1002/slct.202000440] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Ayşegül Rahtuvanoğlu
- Department of Chemical Engineering, Faculty of EngineeringAnkara University Ankara 06100 Turkey
| | - Semra Akgönüllü
- Depatment of Chemistry, Faculty of ScienceHacettepe University Ankara 06800 Turkey
| | - Süleyman Karacan
- Department of Chemical Engineering, Faculty of EngineeringAnkara University Ankara 06100 Turkey
| | - Adil Denizli
- Depatment of Chemistry, Faculty of ScienceHacettepe University Ankara 06800 Turkey
| |
Collapse
|
13
|
Sun Y, Zhu X, Liu H, Dai Y, Han R, Gao D, Luo C, Wang X, Wei Q. Novel Chemiluminescence Sensor for Thrombin Detection Based on Dual-Aptamer Biorecognition and Mesoporous Silica Encapsulated with Iron Porphyrin. ACS APPLIED MATERIALS & INTERFACES 2020; 12:5569-5577. [PMID: 31933352 DOI: 10.1021/acsami.9b20255] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Thrombin is a marker of blood-related diseases, and its detection is of great significance in the fields of medical and biological research. Herein, a novel chemiluminescence (CL) sensor for thrombin detection was prepared based on dual-aptamer biorecognition and mesoporous silica encapsulated with iron porphyrin. Mesoporous silica encapsulated with hematin by aptamer1 (Apt1/hematin/M-SiO2) and magnetic microspheres modified with aptamer2 (Apt2/NH2-MS) were successfully prepared, and the two materials were used to construct a CL sensor to detect thrombin. Primarily, Apt2/NH2-MS is used for pretreatment separation of thrombin samples by the biorecognition effect between the aptamer (Apt2) and target (thrombin). Then, thrombin/Apt2/NH2-MS is again recognized with Apt1 on the surface of Apt1/hematin/M-SiO2 and Apt1/thrombin/Apt2/NH2-MS is formed, so dual-aptamer biorecognition is realized. Meanwhile, the generated Apt1/thrombin/Apt2/NH2-MS makes Apt1 shed off the surface of M-SiO2 and release hematin. The released hematin can catalyze the luminol-H2O2 CL reaction. Therefore, a sandwich-type CL sensor was constructed based on dual-aptamer biorecognition and hematin catalysis for the detection of thrombin. The sensor has a linear range of 7.5 × 10-15 to 2.5 × 10-10 mol·L-1 and a detection limit of 2.2 × 10-15 mol·L-1 and also exhibits excellent selectivity, reproducibility, and stability. The sensor was successfully used for the detection of thrombin in serum samples, which makes it possible to apply the sensor in the detection of thrombin in actual samples.
Collapse
Affiliation(s)
- Yuanling Sun
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| | - Xiaodong Zhu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| | - Hao Liu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| | - Yuxue Dai
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| | - Rui Han
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| | - Dandan Gao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| | - Chuannan Luo
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| | - Xueying Wang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , PR China
| |
Collapse
|
14
|
Ning Z, Zheng Y, Pan D, Zhang Y, Shen Y. Coupling aptazyme and catalytic hairpin assembly for cascaded dual signal amplified electrochemiluminescence biosensing. Biosens Bioelectron 2019; 150:111945. [PMID: 31818762 DOI: 10.1016/j.bios.2019.111945] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/22/2019] [Accepted: 11/30/2019] [Indexed: 01/22/2023]
Abstract
Developing reliable and sensitive detection methods for adenosine triphosphate (ATP) is vital for both clinical diagnosis and food safety. In this work, by coupling aptazyme- and catalytic hairpin assembly (CHA)-based signal amplification and electrochemiluminescence (ECL), an ultrasensitive biosensor for sensing ATP was fabricated using Ru(bpy)32+-doped silica nanoparticles (RuSiO2) as ECL probes and a ferrocene-functionalized hairpin DNA (hairpin-Fc) as quencher. The aptazyme-triggered cleavage of the DNA substrate and the CHA reaction both led to the circular release of trigger DNA, resulting in a significant dual signal amplification, with unprecedented enhancement up to 940-fold. Moreover, the bioconjugation of the DNA substrate with Au@Fe3O4 facilitated the separation and purification of the released trigger DNA, and effectively reduced the background signal. As a result, the as-prepared ECL biosensor exhibited a much lower detection limit of 0.054 pM for ATP, compared to those in previous reports, and showed high reliability for ATP detection in both spiked serum samples and Staphylococcus aureus. This work offers a new perspective for designing nucleic acid-based signal amplification for detecting ATP in bacterial analysis and clinical diagnosis.
Collapse
Affiliation(s)
- Zhenqiang Ning
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China
| | - Yongjun Zheng
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China
| | - Deng Pan
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China
| | - Yuanjian Zhang
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China
| | - Yanfei Shen
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China.
| |
Collapse
|
15
|
Ma C, Cao Y, Gou X, Zhu JJ. Recent Progress in Electrochemiluminescence Sensing and Imaging. Anal Chem 2019; 92:431-454. [PMID: 31679341 DOI: 10.1021/acs.analchem.9b04947] [Citation(s) in RCA: 273] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Cheng Ma
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , P. R. China
| | - Yue Cao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , P. R. China
| | - Xiaodan Gou
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , P. R. China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , P. R. China
| |
Collapse
|