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Xu X, Tang L, Yu Y, Zhang J, Zhou X, Zhou T, Xuan C, Tian Q, Pan D. Cooperative amplification of Prussian blue as a signal indicator and functionalized metal-organic framework-based electrochemical biosensor for an ultrasensitive HE4 assay. Biosens Bioelectron 2024; 262:116541. [PMID: 38959719 DOI: 10.1016/j.bios.2024.116541] [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: 03/29/2024] [Revised: 06/01/2024] [Accepted: 06/26/2024] [Indexed: 07/05/2024]
Abstract
Human epididymis protein 4 (HE4), a diagnostic biomarker of ovarian cancer, is crucial for monitoring the early stage of the disease. Hence, it is highly important to develop simple, inexpensive, and user-friendly biosensors for sensitive and quantitative HE4 assays. Herein, a new sandwich-type electrochemical immunosensor based on Prussian blue (PB) as a signal indicator and functionalized metal-organic framework nanocompositesas efficient signal amplifiers was fabricated for quantitative analysis of HE4. In principle, ketjen black (KB) and AuNPs modified on TiMOF (TiMOF-KB@AuNPs) could accelerate electron transfer on the electrode surface and act as a matrix for the immobilization of antibodies via cross-linking to improve the determination sensitivity. The PB that covalently binds to labeled antibodies endows the biosensors with intense electrochemical signals. Furthermore, the concentration of HE4 could be indirectly detected by monitoring the electroactivity of PB. Benefiting from the high signal amplification ability of the PB and MOF nanocomposites, this strategy displayed a wide linear range (0.1-80 ng mL-1) and a lower detection limit (0.02 ng mL-1). Hence, this study demonstrated great promise for application in clinical ovarian cancer diagnosis and treatment, and provided a new platform for detecting other cancer biomarkers.
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Affiliation(s)
- Xuanming Xu
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, No. 1677, Wutaishan Road, 266000 Qingdao, Shandong, China; Department of Clinical Laboratory, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Lian Tang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yang Yu
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, No. 1677, Wutaishan Road, 266000 Qingdao, Shandong, China
| | - Jiayou Zhang
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, No. 1677, Wutaishan Road, 266000 Qingdao, Shandong, China
| | - Xiaoyan Zhou
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, No. 1677, Wutaishan Road, 266000 Qingdao, Shandong, China
| | - Tingting Zhou
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, No. 1677, Wutaishan Road, 266000 Qingdao, Shandong, China
| | - Chao Xuan
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, No. 1677, Wutaishan Road, 266000 Qingdao, Shandong, China
| | - Qingwu Tian
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, No. 1677, Wutaishan Road, 266000 Qingdao, Shandong, China
| | - Deng Pan
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, No. 1677, Wutaishan Road, 266000 Qingdao, Shandong, China.
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Wang L, Li Y, Yang X, Zhou H, Yang X, Chen X. A dual-mode composite nanozyme-based cascade colorimetric-fluorescence aptasensor for Salmonella Typhimurium detection. Anal Chim Acta 2024; 1324:343116. [PMID: 39218569 DOI: 10.1016/j.aca.2024.343116] [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: 06/20/2024] [Revised: 08/06/2024] [Accepted: 08/14/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND Salmonella Typhimurium poses a serious threat to human health worldwide, necessitating the development of a rapid, sensitive, and convenient method for S. Typhimurium detection. Nanozymes are considered ideal signal report elements, which are extensively used for developing colorimetric methods. However, single-component nanozymes display low catalytic activity, and colorimetric methods are susceptible to environmental interference, reducing the sensitivity and accuracy of detection results. To address these drawbacks, this study constructed a dual-mode composite nanozyme-based cascade colorimetric-fluorescence aptasensor for S. Typhimurium detection in food. RESULTS In this study, the composite Fe3O4@MIL-100(Fe) nanozymes were successful synthesized and demonstrated substantial peroxide-like activity, with 4.76-fold higher specificity activity (SA) than that of Fe3O4 nanozymes. Then, a glucose oxidase (GOx)-Fe3O4@MIL-100(Fe) cascade reaction was developed for colorimetric detection via an aptamer to facilitate the formation of Fe3O4@MIL-100(Fe)/S. Typhimurium/carboxylated g-C3N4 (CCN)-GOx sandwich complexes. Meanwhile, the fluorescence mode was achieved by measuring the fluorescence intensity of the sandwich complexes. In optimum conditions, the dual-mode detection limits (LOD) were 1.8 CFU/mL (colorimetric mode) and 1.2 CFU/mL (fluorescence mode), respectively, with the S. Typhimurium concentration ranging from 10 CFU/mL to 107 CFU/mL. Finally, the feasibility of the dual-mode colorimetric-fluorescence method was validated via three actual samples, yielding recovery rates of 77.32 % to91.17 % and 82.17 % to 103.7 %, respectively. SIGNIFICANCE AND NOVELTY This study successfully develops a composite nanozyme-based cascade colorimetric and fluorescence dual-mode aptasensor for S. Typhimurium detection. It presents several distinct benefits, such as a broader linear range (10-107 CFU/mL), a lower LOD value (1.2 CFU/mL), and more accurate results. More importantly, the proposed dual-mode method displays a low LOD in colorimetric mode, demonstrating considerable potential for S. Typhimurium on-site detection in food.
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Affiliation(s)
- Lijun Wang
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, China; Food Microbiology Key Laboratory of Sichuan Province, Chengdu, 610039, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu, 610039, China.
| | - Yi Li
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, China
| | - Xin Yang
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, China
| | - Hong Zhou
- Sichuan Jiannanchun Group Co., Ltd, Deyang, 618200, China
| | - Xiao Yang
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, China
| | - Xianggui Chen
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, China; Food Microbiology Key Laboratory of Sichuan Province, Chengdu, 610039, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu, 610039, China.
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Chen J, Yang M, Zhang H, Chen Y, Ji Y, Yu R, Liu Z. Boosting the Activation of Molecular Oxygen and the Degradation of Rhodamine B in Polar-Functional-Group-Modified g-C 3N 4. Molecules 2024; 29:3836. [PMID: 39202915 PMCID: PMC11356892 DOI: 10.3390/molecules29163836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/02/2024] [Accepted: 08/07/2024] [Indexed: 09/03/2024] Open
Abstract
Molecular oxygen activation often suffers from high energy consumption and low efficiency. Developing eco-friendly and effective photocatalysts remains a key challenge for advancing green molecular oxygen activation. Herein, graphitic carbon nitride (g-C3N4) with abundant hydroxyl groups (HCN) was synthesized to investigate the relationship between these polar groups and molecular oxygen activation. The advantage of the hydroxyl group modification of g-C3N4 included narrower interlayer distances, a larger specific surface area and improved hydrophilicity. Various photoelectronic measurements revealed that the introduced hydroxyl groups reduced the charge transfer resistance of HCN, resulting in accelerated charge separation and migration kinetics. Therefore, the optimal HCN-90 showed the highest activity for Rhodamine B photodegradation with a reaction time of 30 min and an apparent rate constant of 0.125 min-1, surpassing most other g-C3N4 composites. This enhanced activity was attributed to the adjusted band structure achieved through polar functional group modification. The modification of polar functional groups could alter the energy band structure of photocatalysts, narrow band gap, enhance visible-light absorption, and improve photogenerated carrier separation efficiency. This work highlights the significant potential of polar functional groups in tuning the structure of g-C3N4 to enhance efficient molecular oxygen activation.
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Affiliation(s)
- Jing Chen
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315103, China
- Department of Chemical and Material Engineering, Quzhou College of Technology, Quzhou 324002, China; (M.Y.); (H.Z.)
| | - Minghua Yang
- Department of Chemical and Material Engineering, Quzhou College of Technology, Quzhou 324002, China; (M.Y.); (H.Z.)
| | - Hongjiao Zhang
- Department of Chemical and Material Engineering, Quzhou College of Technology, Quzhou 324002, China; (M.Y.); (H.Z.)
| | - Yuxin Chen
- Department of Chemistry, Lishui University, 1 Xueyuan Road, Lishui 323000, China; (Y.C.); (Y.J.); (R.Y.)
| | - Yujie Ji
- Department of Chemistry, Lishui University, 1 Xueyuan Road, Lishui 323000, China; (Y.C.); (Y.J.); (R.Y.)
| | - Ruohan Yu
- Department of Chemistry, Lishui University, 1 Xueyuan Road, Lishui 323000, China; (Y.C.); (Y.J.); (R.Y.)
| | - Zhenguo Liu
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315103, China
- School of Flexible Electronics and Henan Institute of Flexible Electronics, Henan University, Zhengzhou 450046, China
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Li P, He T, Wang J, Ou N, Liang J, Wang G, Fan Q. Realizing Direct Uranium Extraction from Seawater Using a Carboxyl-g-C 3N 4/CdS Hydrogel. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404417. [PMID: 39039986 DOI: 10.1002/smll.202404417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/11/2024] [Indexed: 07/24/2024]
Abstract
The photocatalytic U(VI) reduction is regarded as an effective strategy for recovering uranium. However, its application in seawater uranium extraction poses challenges due to limited reactivity in the presence of carbonate and under atmospheric conditions. In the present study, a photoactive hydrogel made of carboxyl-functionalized g-C3N4/CdS (CCN/CdS) is designed for extracting uranium. The carboxyl groups on g-C3N4 enhance the affinity toward uranyl ions while CdS facilitates the activation of dissolved oxygen. Under atmospheric conditions, the prepared hydrogel catalyst achieves over 80% reduction rate of 0.1 mM U(VI) within 150 min in the presence of carbonate, without the assistance of any electron donors. During the photocatalytic process, U(VI) is reduced to form UO2+x. The hydrogel catalyst exhibits a high uranium extraction capacity of >434.5 mg g⁻1 and the products can be effectively eluted using a 0.1 M NaCO3 solution. Furthermore, this hydrogel catalyst offers excellent stability, good recyclability, outstanding antifouling activity, and ease of separation, all of which are desirable for seawater uranium extraction. Finally, the test in real seawater demonstrates the successful extraction of uranium from seawater using the prepared hydrogel catalyst.
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Affiliation(s)
- Ping Li
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Petroleum Resources Exploration and Evaluation, Lanzhou, Gansu, 730000, China
- Changyi Marine Ecology and Engineering Research Station, Changyi, 261300, China
- Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou, 730000, China
| | - Teng He
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Jingjing Wang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Niya Ou
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Jianjun Liang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Petroleum Resources Exploration and Evaluation, Lanzhou, Gansu, 730000, China
- Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou, 730000, China
| | - Gen Wang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Petroleum Resources Exploration and Evaluation, Lanzhou, Gansu, 730000, China
| | - Qiaohui Fan
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Petroleum Resources Exploration and Evaluation, Lanzhou, Gansu, 730000, China
- Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou, 730000, China
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5
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Zhao C, Ma C, Wang M, Lai W, Hong C. Electrochemiluminescence Enhancement and Passivation Mitigation in Carbon Nitride Semiconductors via an Integrated Ternary Heterostructure Strategy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310476. [PMID: 38282388 DOI: 10.1002/smll.202310476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/24/2023] [Indexed: 01/30/2024]
Abstract
In recent years, carbon nitride (CN) has attracted substantial attention in the field of electrochemiluminescence (ECL) applications, owing to its outstanding optical and electronic properties. However, the passivation of CN during the ECL process has contributed to reduced stability and poor repeatability. While some studies have tried to boost ECL performance by altering CN through doping and vacancies, effectively suppressing CN passivation at high potentials continues to be challenge. In this study, the built-in electric field and the Schottky barrier effect is used to expedite the transfer of electrons from CN to the molybdenum disulfide (MoS2) conduction band. This transfer deterred excessive electron injection into the CN band, thus mitigating its electrochemical degradation. Moreover, by introducing nickel nanoparticles (Ni NPs) as catalytic active sites, it is facilitated that the decomposition of potassium persulfate (K2S2O8), thereby enhancing both the stability and intensity of ECL emission. In the end, the application of ternary heterostructure as sensing platform for the cancer biomarker carcinoembryonic antigen (CEA) demonstrated high sensitivity. This research introduces a novel approach to overcome CN passivation, paving the way for more promising applications of CN in energy, environmental, and biosensing fields.
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Affiliation(s)
- Chulei Zhao
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832000, P. R. China
| | - Chaoyun Ma
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
- Xinjiang Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, School of Chemical Engineering and Technology, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - Min Wang
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832000, P. R. China
| | - Wenjing Lai
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832000, P. R. China
| | - Chenglin Hong
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832000, P. R. China
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6
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Chaulagain N, Garcia JC, Manoj A, Shankar K. Ultrasensitive detection of Ag +and Ce 3+ions using highly fluorescent carboxyl-functionalized carbon nitride nanoparticles. NANOTECHNOLOGY 2024; 35:315502. [PMID: 38604135 DOI: 10.1088/1361-6528/ad3d66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 04/11/2024] [Indexed: 04/13/2024]
Abstract
The fluorescence quenching of carboxyl-rich g-C3N4nanoparticles was found to be selective to Ag+and Ce3+with a limit of detection as low as 30 pM for Ag+ions. A solid-state thermal polycondensation reaction was used to produce g-C3N4nanoparticles with distinct green fluorescence and high water solubility. Dynamic light scattering indicated an average nanoparticle size of 95 nm. The photoluminescence absorption and emission maxima were centered at 405 nm and 540 nm respectively which resulted in a large Stokes shift. Among different metal ion species, the carboxyl-rich g-C3N4nanoparticles were selective to Ag+and Ce3+ions, as indicated by strong fluorescence quenching and a change in the fluorescence lifetime. The PL sensing of heavy metal ions followed modified Stern-Volmer kinetics, and CNNPs in the presence of Ag+/Ce3+resulted in a higher value ofKapp(8.9 × 104M-1) indicating a more efficient quenching process and stronger interaction between CNNP and mixed ions. Sensing was also demonstrated using commercial filter paper functionalized with g-C3N4nanoparticles, enabling practical on-site applications.
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Affiliation(s)
- Narendra Chaulagain
- Department of Electrical and Computer Engineering, University of Alberta, 9211-116 St, Edmonton, AB T6G 1H9, Canada
| | - John C Garcia
- Department of Electrical and Computer Engineering, University of Alberta, 9211-116 St, Edmonton, AB T6G 1H9, Canada
| | - Aparna Manoj
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, 462066, India
| | - Karthik Shankar
- Department of Electrical and Computer Engineering, University of Alberta, 9211-116 St, Edmonton, AB T6G 1H9, Canada
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7
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Wang Y, Zhong S, Niu Z, Dai Y, Li J. Synthesis and up-to-date applications of 2D microporous g-C 3N 4 nanomaterials for sustainable development. Chem Commun (Camb) 2023; 59:10883-10911. [PMID: 37622731 DOI: 10.1039/d3cc03550f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
In recent years, with the development of industrial technology and the increase of people's environmental awareness, the research on sustainable materials and their applications has become a hot topic. Among two-dimensional (2D) materials that have been selected for sustainable research, graphitic phase carbon nitride (g-C3N4) has become a hot research topic because of its many outstanding advantages such as simple preparation, good electrochemical properties, excellent photochemical properties, and better thermal stability. Nevertheless, the inherent limitations of g-C3N4 due to its relatively poor specific surface area, rapid charge recombination, limited light absorption range, and inferior dispersion in aqueous and organic media have limited its practical application. In the review, we summarize and analyze the unique structure of the 2D microporous nanomaterial g-C3N4, its synthesis method, chemical modification method, and the latest application examples in various fields in recent years, highlighting its advantages and shortcomings, with a view to providing ideas for overcoming the difficulties in its application. Furthermore, the pressing challenges faced by g-C3N4 are briefly discussed, as well as an outlook on the application prospects of g-C3N4 materials. It is expected that the review in this paper will provide more theoretical strategies for the future practical application of g-C3N4-based materials, as well as contributing to nanomaterials in sustainable applications.
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Affiliation(s)
- Yuanyuan Wang
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Suyue Zhong
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Zhenhua Niu
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Yangyang Dai
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Jian Li
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
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Li Q, Wu X, Mu S, He C, Ren X, Luo X, Adeli M, Han X, Ma L, Cheng C. Microenvironment Restruction of Emerging 2D Materials and their Roles in Therapeutic and Diagnostic Nano-Bio-Platforms. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207759. [PMID: 37129318 PMCID: PMC10369261 DOI: 10.1002/advs.202207759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/30/2023] [Indexed: 05/03/2023]
Abstract
Engineering advanced therapeutic and diagnostic nano-bio-platforms (NBPFs) have emerged as rapidly-developed pathways against a wide range of challenges in antitumor, antipathogen, tissue regeneration, bioimaging, and biosensing applications. Emerged 2D materials have attracted extensive scientific interest as fundamental building blocks or nanostructures among material scientists, chemists, biologists, and doctors due to their advantageous physicochemical and biological properties. This timely review provides a comprehensive summary of creating advanced NBPFs via emerging 2D materials (2D-NBPFs) with unique insights into the corresponding molecularly restructured microenvironments and biofunctionalities. First, it is focused on an up-to-date overview of the synthetic strategies for designing 2D-NBPFs with a cross-comparison of their advantages and disadvantages. After that, the recent key achievements are summarized in tuning the biofunctionalities of 2D-NBPFs via molecularly programmed microenvironments, including physiological stability, biocompatibility, bio-adhesiveness, specific binding to pathogens, broad-spectrum pathogen inhibitors, stimuli-responsive systems, and enzyme-mimetics. Moreover, the representative therapeutic and diagnostic applications of 2D-NBPFs are also discussed with detailed disclosure of their critical design principles and parameters. Finally, current challenges and future research directions are also discussed. Overall, this review will provide cutting-edge and multidisciplinary guidance for accelerating future developments and therapeutic/diagnostic applications of 2D-NBPFs.
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Affiliation(s)
- Qian Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Xizheng Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Shengdong Mu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Chao He
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Xiancheng Ren
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Xianglin Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Mohsen Adeli
- Department of Organic Chemistry, Faculty of Chemistry, Lorestan University, Khorramabad, 68137-17133, Iran
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Xianglong Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Lang Ma
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
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Li L, Sun C, Li J, Liu J, Li Y, Xie Q. Photoelectrochemical immunoassay of squamous cell carcinoma antigen based on CuO/nitrogen-doped porous carbon-ZnO biolabeling and a type-II In 2O 3/AgBiS 2 heterojunction. Mikrochim Acta 2023; 190:192. [PMID: 37099090 DOI: 10.1007/s00604-023-05775-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/30/2023] [Indexed: 04/27/2023]
Abstract
AgBiS2 was hydrothermally synthesized, In2O3 was synthesized by hydrothermal method and calcination, and the type-II In2O3/AgBiS2 heterojunction material of an optimized composition ratio was cast-coated on a fluorine-doped tin oxide (FTO) slice to fabricate an In2O3/AgBiS2/FTO photoanode. The signal-attenuated photoelectrochemistry sandwich immunoassay of squamous cell carcinoma antigen (SCCA) was realized on this photoanode, on the basis of a bovine serum albumin/secondary antibody/CuO nanoparticles/nitrogen-doped porous carbon-ZnO bionanocomposite that can competitively absorb light and deplete the electron donor ascorbic acid as well as show the steric hindrance and p-n quenching effects. Under the optimized conditions (e.g., at a bias of 0 V vs. SCE), the photocurrent was linear with the common logarithm of SCCA concentration from 2.00 pg mL-1 to 50.0 ng mL-1, with a limit of detection (LOD) of 0.62 pg mL-1 (S/N = 3). The immunoassay of SCCA in human serum samples gave satisfactory recovery (92.0~103%) and relative standard deviation (5.1~7.8%) results.
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Affiliation(s)
- Lu Li
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Chenglong Sun
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Jiahui Li
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Jialin Liu
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Yunlong Li
- Key Laboratory of Chemical Biology & 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 & 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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10
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Wang MY, Jing WJ, Wang LJ, Jia LP, Ma RN, Zhang W, Shang L, Li XJ, Xue QW, Wang HS. Electrochemiluminescence detection of miRNA-21 based on dual signal amplification strategies: Duplex-specific nuclease -mediated target recycle and nicking endonuclease-driven 3D DNA nanomachine. Biosens Bioelectron 2023; 226:115116. [PMID: 36753989 DOI: 10.1016/j.bios.2023.115116] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/15/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
DNA nanomachines have shown potential application in the construction of various biosensors. Here, an electrochemiluminescence biosensor for the sensitive detection of miRNA-21 were reported based on three-dimensional (3D) DNA nanomachine and duplex-specific nuclease (DSN)-mediated target recycle amplification strategy. First, the bipedal DNA walkers were obtained by DSN-mediated digestion reaction initiated by target miRNA-21.3D DNA tracks were prepared by modifying Fe3O4 magnetic beads (MBs) with ferrocene-labeled DNA (Fc-DNA). The produced DNA walkers autonomously moved along 3D DNA tracks powered by nicking endonuclease. During the movement, ferrocene-labeled DNA was cleaved, resulting in large amounts of Fc-labeled DNA fragments away from the MBs surface. Finally, the liberated Fc-labeled DNA fragments were dropped on the C-g-C3N4 modified electrode surface, leading to the quenching of C-g-C3N4 electrochemiluminescence (ECL). Benefiting from the dual amplification strategy of 3D DNA nanomachine and DSN-mediated target recycling, the developed ECL biosensor exhibited an excellent performance for miRNA-21 detection with a wide linear range of 10 fM to 10 nM and a low detection limit of 1.0 fM. This work offers a new thought for the application of DNA walkers in the construction of various biosensors.
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Affiliation(s)
- Ming-Yue Wang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Wen-Jie Jing
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Li-Juan Wang
- No. 3 Middle School of Liaocheng, Liaocheng, Shandong Province, 252000, China
| | - Li-Ping Jia
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China.
| | - Rong-Na Ma
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Wei Zhang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Lei Shang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Xiao-Jian Li
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Qing-Wang Xue
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Huai-Sheng Wang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China.
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11
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Abedi R, Bakhsh Raoof J, Mohseni M, Bagheri Hashkavayi A. Sandwich-Type Electrochemical Aptasensor for Highly Sensitive and Selective Detection of Pseudomonas Aeruginosa Bacteria Using a Dual Signal Amplification Strategy. Bioelectrochemistry 2023; 150:108332. [PMID: 36493674 DOI: 10.1016/j.bioelechem.2022.108332] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/12/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022]
Abstract
An electrochemical aptasensor developed to realize the detection of Pseudomonas aeruginosa (P. aeruginosa) bacteria based on a signal amplification strategy. The carbon screen-printed electrode (CSPE) surface was modified by MIL-101(Cr)/Multi-walled carbon nanotubes (MWCNT), which significantly increased the effective surface area of the electrode, thus resulting in further F23 aptamer immobilization at the surface of the modified electrode. As a result, the P. aeruginosa can be efficiently captured onto the surface of the aptasensor. Moreover, aptamer immobilized on the two-dimensional graphitic carbon nitride complex with silver nanoparticles (AgNPs/c-g-C3N4/Apt) was used as an electrochemical signal label, connected to P. aeruginosa bacteria at the modified electrode. This strategy increased the aptamer surface density and the sensitivity for detecting P. aeruginosa. Also, the resultant material was thoroughly characterized using Fourier transform infrared (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and Brunauer-Emmett-Teller (BET) analysis techniques. A highly sensitive voltammetric aptasensor for P. aeruginosa detection was obtained via this strategy at the limit of detection of 1 Colony-forming unit (CFU)/mL (σ = 3). Therefore, this proposed strategy with dual signal amplification can be a promising platform for simple, practical, reliable, and sensitive method for P. aeruginosa.
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Affiliation(s)
- Rokhsareh Abedi
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Jahan Bakhsh Raoof
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
| | - Mojtaba Mohseni
- Department of Microbiology, Faculty of Science, University of Mazandaran, Iran
| | - Ayemeh Bagheri Hashkavayi
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
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12
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El-Reash YGA, Ghaith EA, El-Awady O, Algethami FK, Lin H, Abdelrahman EA, Awad FS. Highly fluorescent hydroxyl groups functionalized graphitic carbon nitride for ultrasensitive and selective determination of mercury ions in water and fish samples. J Anal Sci Technol 2023. [DOI: 10.1186/s40543-023-00379-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
AbstractHeavy metal ion pollution is always a serious problem worldwide. Therefore, monitoring heavy metal ions in environmental water is a crucial and difficult step to ensure the safety of people and the environment. A mercury ion (Hg2+) fluorescence probe with excellent sensitivity and selectivity is described here. The functionalized graphitic carbon nitride nanosheets (T/G-C3N4) fluorescence probe was fabricated using melamine as a precursor by the pyrolysis technique, followed by a rapid KOH heat treatment method for 2 min. The chemical structure and morphology of the T/G-C3N4 probe were characterized using multiple analytical techniques including UV–Vis, SEM, XPS, XRD, and fluorometer spectroscopy. Geometry optimization of T/G-C3N4 as a modified probe was performed to assess its stability and interaction ability with Hg(II) via using the density function approach. The T/G-C3N4 probe showed a linear response based on quenching over the range 0–1.25 × 103 nM Hg(II); the detection limit was 27 nM. The remarkable sensitivity of T/G-C3N4 towards the Hg2+ ions was explained by the intense coordination and fast chelation kinetics of Hg2+ with the NH2, CN, C=N, and OH groups of T/G-C3N4 nanoprobe. The T/G-C3N4 probe demonstrates exceptional selectivity for Hg2+ ions among other metal ions including (Na+, Ag+, Mg2+, Fe2+, Fe3+, Co2+, Ni2+, Cd2+, K+, Ca2+, Cu2+, Pb2+, Mn2+ and Hg2+) and over a broad pH range (6–10), together with remarkable long-term fluorescence stability in water (> 30 days) and minimal toxicity. T/G-C3N4 was used to detect and quantify Hg2+ ions in tuna and mackerel fish and the results compared to ICP-AES. The results obtained offer a new simple and green technique for the design of multifunctional fluorescent probe appropriate for environmental applications.
Graphical Abstract
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13
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Li L, Wang X, Chen J, Huang T, Cao H, Liu X. A Novel Electrochemiluminescence Immunosensor Based on Resonance Energy Transfer between g-CN and NU-1000(Zr) for Ultrasensitive Detection of Ochratoxin A in Coffee. Foods 2023; 12:foods12040707. [PMID: 36832782 PMCID: PMC9955951 DOI: 10.3390/foods12040707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
In this study, an electrochemiluminescence (ECL) immunosensor based on nanobody heptamer and resonance energy transfer (RET) between g-C3N4 (g-CN) and NU-1000(Zr) was proposed for ultrasensitive ochratoxin A (OTA) detection. First, OTA heptamer fusion protein was prepared by fusing OTA-specific nanometric (Nb28) with a c-terminal fragment of C4 binding protein (C4bpα) (Nb28-C4bpα). Then, Nb28-C4bpα heptamer with the high affinity used as a molecular recognition probe, of which plenty of binding sites were provided for OTA-Apt-NU-1000(Zr) nanocomposites, thereby improving the immunosensors' sensitivity. In addition, the quantitative analysis of OTA can be achieved by using the signal quenching effect of NU-1000(Zr) on g-CN. As the concentration of OTA increases, the amount of OTA-Apt-NU-1000(Zr) fixed on the electrode surface decreases. RET between g-CN and NU-1000(Zr) is weakened leading to the increase of ECL signal. Thus, OTA content is indirectly proportional to ECL intensity. Based on the above principle, an ultra-sensitive and specific ECL immunosensor for OTA detection was constructed by using heptamer technology and RET between two nanomaterials, with a range from 0.1 pg/mL to 500 ng/mL, and the detection limit of only 33 fg/mL. The prepared ECL-RET immunosensor showed good performance and can be successfully used for the determination of OTA content in real coffee samples, suggesting that the nanobody polymerization strategy and the RET effect between NU-1000(Zr) and g-CN can provide an alternative for improving the sensitivity of important mycotoxin detection.
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Affiliation(s)
- Linzhi Li
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Xiaofeng Wang
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, China
| | - Jian Chen
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Tianzeng Huang
- School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Hongmei Cao
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
- Correspondence:
| | - Xing Liu
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
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14
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Wang C, Liu S, Ju H. Electrochemiluminescence nanoemitters for immunoassay of protein biomarkers. Bioelectrochemistry 2023; 149:108281. [PMID: 36283193 DOI: 10.1016/j.bioelechem.2022.108281] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 12/05/2022]
Abstract
The family of electrochemiluminescent luminophores has witnessed quick development since the electrochemiluminescence (ECL) phenomenon of silicon nanoparticles was first reported in 2002. Moreover, these developed ECL nanoemitters have extensively been applied in sensitive detection of protein biomarker by combining with immunological recognition. This review firstly summarized the origin and development of various ECL nanoemitters including inorganic and organic nanomaterials, with an emphasis on metal-organic frameworks (MOFs)-based ECL nanoemitters. Several effective strategies to amplify the ECL response of nanoemitters and improve the sensitivity of immunosensing were discussed. The application of ECL nanoemitters in immunoassay of protein biomarkers for diagnosis of cancers and other diseases, especially lung cancer and heart diseases, was comprehensively presented. The recent development of ECL imaging with the nanoemitters as ECL tags for detection of multiplex protein biomarkers on single cell membrane also attracted attention. Finally, the future opportunities and challenges in the ECL biosensing field were highlighted.
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Affiliation(s)
- Chao Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Songqin Liu
- State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210023, China
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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15
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Well-dispersed strawberry-like PtCo nanocrystals/porous N-doped carbon nanospheres for multiplexed assays. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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16
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Chen L, Guo H, Tian L, Zhou SF. Molecular engineered graphitic carbon nitride with strong and stable electrochemiluminescence for immunosensing. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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17
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Chen L, Zhao P, Tian L, Wang Y, Zhou SF. Modulating Anodic Electrochemiluminescence of Graphitic Carbon Nitride by Thiophene Doping. NEW J CHEM 2022. [DOI: 10.1039/d2nj02764j] [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
As an attractive electrochemiluminescence (ECL) emitter, graphitic carbon nitride (g-CN) still suffers from weak anodic ECL signal. In this work, a simple molecular engineering strategy is employed to modulate anodic...
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18
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Kitte SA, Bushira FA, Xu C, Wang Y, Li H, Jin Y. Plasmon-Enhanced Nitrogen Vacancy-Rich Carbon Nitride Electrochemiluminescence Aptasensor for Highly Sensitive Detection of miRNA. Anal Chem 2021; 94:1406-1414. [PMID: 34927425 DOI: 10.1021/acs.analchem.1c04726] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The development of biosensors for biologically important substances with ultralow content such as microRNA is of great significance. Herein, a novel surface plasmon-enhanced electrogenerated chemiluminescence-based aptasensor was developed for ultrasensitive sensing of microRNA by using nitrogen vacancy-rich carbon nitride nanosheets as effective luminophores and gold nanoparticles as plasmonic sources. The introduction of nitrogen vacancies improved the electrochemiluminescence behavior due to improved conductance and electrogenerated chemiluminescence activity. The introduction of plasmonic gold nanoparticles increased the electrochemiluminescence signal intensity by more than eightfold. The developed surface plasmon-enhanced electrogenerated chemiluminescence aptasensor exhibited good selectivity, ultrasensitivity, excellent stability, and reproducibility for the determination of microRNA-133a, with a dynamic linear range of 1 aM to 100 pM and a limit of detection about 0.87 aM. Moreover, the surface plasmon-enhanced electrogenerated chemiluminescence sensor obtained a good recovery when detecting the content of microRNA in actual serum.
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Affiliation(s)
- Shimeles Addisu Kitte
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,Department of Chemistry, College of Natural Sciences, Jimma University, P.O. Box 378, Jimma 378, Ethiopia
| | - Fuad Abduro Bushira
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,Department of Chemistry, College of Natural Sciences, Jimma University, P.O. Box 378, Jimma 378, Ethiopia.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Chen Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yong Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
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19
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Zhao Y, Zada A, Yang Y, Pan J, Wang Y, Yan Z, Xu Z, Qi K. Photocatalytic Removal of Antibiotics on g-C 3N 4 Using Amorphous CuO as Cocatalysts. Front Chem 2021; 9:797738. [PMID: 34957051 PMCID: PMC8692713 DOI: 10.3389/fchem.2021.797738] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/01/2021] [Indexed: 11/13/2022] Open
Abstract
Amorphous CuO is considered as an excellent cocatalyst, owing to its large surface area and superior conductivity compared with its crystalline counterpart. The current work demonstrates a facile method to prepare amorphous CuO, which is grown on the surface of graphitic carbon nitride (g-C3N4) and is then applied for the photocatalytic degradation of tetracycline hydrochloride. The prepared CuO/g-C3N4 composite shows higher photocatalytic activities compared with bare g-C3N4. Efficient charge transfer between g-C3N4 and CuO is confirmed by the photocurrent response spectra and photoluminescence spectra. This work provides a facile approach to prepare low-cost composites for the photocatalytic degradation of antibiotics to safeguard the environment.
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Affiliation(s)
- Yue Zhao
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, and Hubei Key Laboratory of Industrial Fume and Pollution Control, Jianghan University, Wuhan, China
- College of Life Science, Shenyang Normal University, Shenyang, China
| | - Amir Zada
- Department of Chemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Yang Yang
- College of Physical Science and Technology, Shenyang Normal University, Shenyang, China
| | - Jing Pan
- College of Life Science, Shenyang Normal University, Shenyang, China
| | - Yan Wang
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, China
| | - Zhaoxiong Yan
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, and Hubei Key Laboratory of Industrial Fume and Pollution Control, Jianghan University, Wuhan, China
| | - Zhihua Xu
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, and Hubei Key Laboratory of Industrial Fume and Pollution Control, Jianghan University, Wuhan, China
| | - Kezhen Qi
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, and Hubei Key Laboratory of Industrial Fume and Pollution Control, Jianghan University, Wuhan, China
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, China
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20
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Chen F, Wang H, Hu H, Gan J, Su M, Xu H, Wei C. Construction of NH2-MIL-101(Fe)/g-C3N4 hybrids based on interfacial Lewis acid-base interaction and its enhanced photocatalytic redox capability. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Singh AK, Jaiswal N, Gautam RK, Tiwari I. Development of g-C3N4/Cu-DTO MOF nanocomposite based electrochemical sensor towards sensitive determination of an endocrine disruptor BPSIP. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115170] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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22
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Zhao W, Chen HY, Xu JJ. Electrogenerated chemiluminescence detection of single entities. Chem Sci 2021; 12:5720-5736. [PMID: 34168801 PMCID: PMC8179668 DOI: 10.1039/d0sc07085h] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 02/23/2021] [Indexed: 12/22/2022] Open
Abstract
Electrogenerated chemiluminescence, also known as electrochemiluminescence (ECL), is an electrochemically induced production of light by excited luminophores generated during redox reactions. It can be used to sense the charge transfer and related processes at electrodes via a simple visual readout; hence, ECL is an outstanding tool in analytical sensing. The traditional ECL approach measures averaged electrochemical quantities of a large ensemble of individual entities, including molecules, microstructures and ions. However, as a real system is usually heterogeneous, the study of single entities holds great potential in elucidating new truths of nature which are averaged out in ensemble assays or hidden in complex systems. We would like to review the development of ECL intensity and imaging based single entity detection and place emphasis on the assays of small entities including single molecules, micro/nanoparticles and cells. The current challenges for and perspectives on ECL detection of single entities are also discussed.
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Affiliation(s)
- Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China +86-25-89687294 +86-25-89687294
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China +86-25-89687294 +86-25-89687294
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China +86-25-89687294 +86-25-89687294
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23
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Li P, Ma G, Wu K, Deng A, Li J. An electrochemiluminescence energy resonance transfer system for highly sensitive detection of brombuterol. Talanta 2021; 223:121687. [PMID: 33303140 DOI: 10.1016/j.talanta.2020.121687] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/14/2020] [Accepted: 09/19/2020] [Indexed: 12/17/2022]
Abstract
In this work, an electrochemiluminescence resonance energy transfer (ECL-RET) system was established based on the modified graphite phase carbon nitride to detect brombuterol residues in food. The ultrasonic-assisted acidification exfoliation modification improved the conductivity and specific surface area of the graphite phase carbon nitride (g-C3N4). In addition, the carboxylated g-C3N4 nanosheets as ECL donors and the Au-Ag alloy nanoparticles as ECL acceptors could respectively directly carry antigen and antibody. Therefore, the trouble of introducing additional bridge molecules was avoided. A competitive immunoassay strategy was used for the detection of brombuterol, where brombuterol in the sample would compete with the coating antigen for the limited binding sites on antibody. The proposed ECL immunosensor for brombuterol detection exhibited high sensitivity with a wide linear range from 0.001 ng mL-1 to 1000 ng mL-1 and a low detection limit at 0.31 pg mL-1. This work adopts a very simple way to design the sensor without losing its sensitivity, bringing convenience to its possible future applications.
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Affiliation(s)
- Pengcheng Li
- The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, 215123, PR China
| | - Guoyu Ma
- The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, 215123, PR China
| | - Kang Wu
- School of Biology & Basic Medical Science, Soochow University, Suzhou, 215123, PR China
| | - Anping Deng
- The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, 215123, PR China.
| | - Jianguo Li
- The Key Lab of Health Chemistry & Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou, 215123, PR China.
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24
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Ai Z, Zhao M, Han D, Chen K, Xiong D, Tang H. An "on-off" electrochemiluminescence immunosensor for PIVKA-II detection based on the dual quenching of CeO 2-Au-g-C 3N 4 hybrids by Ag nanocubes-VB 2. Biosens Bioelectron 2021; 179:113059. [PMID: 33561664 DOI: 10.1016/j.bios.2021.113059] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/28/2021] [Indexed: 02/08/2023]
Abstract
Herein, we report a novel dual-quenching electrochemiluminescence (ECL) immunosensor for detecting protein induced by vitamin K absence or antagonist-II (PIVKA-II) based on ECL resonance energy transfer (ECL-RET). In this protocol, self-accelerated ECL hybrids of CeO2 and Au nanoparticles functionalized g-C3N4 nanosheets (CeO2-Au-g-C3N4) were prepared, which exhibited high ECL emission in the presence of S2O82- as a coreactant for "signal on" state. Concretely, CeO2 with a reproducible redox couple of Ce3+ and Ce4+ could act as an efficient co-reaction accelerator to generate more oxidizing intermediate (SO4•-) to significantly self-promote the ECL emission of g-C3N4 NSs/S2O82- ECL system. Besides, Au nanoparticles not only accelerated electron transfer in the ECL process, but also provided massive active sites for biomolecules immobilization. The dual quenching labels of Ag nanocubes modified with vitamin B2 (AgNCs-VB2) were firstly proposed towards g-C3N4 NSs/S2O82- ECL system by ECL-RET, resulting in the remarkable ECL decrease for "signal off" state. Based on the sandwich immunoreaction, the "on-off" PIVKA-II ECL immunosensor gratifyingly possessed excellent detection sensitivity with the linear range of 0.4 pg mL-1-10 ng mL-1 and the low detection limit of 28.46 fg mL-1 (S/N = 3). This presented strategy might provide a potential alternative tool for PIVKA-II detection in medical research and early clinical diagnostics of hepatocellular carcinoma.
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Affiliation(s)
- Zhujun Ai
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Min Zhao
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Daobin Han
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Ke Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Dongmei Xiong
- Nursing Department, Chongqing Medical and Pharmaceutical College, Chongqing, China
| | - Hua Tang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China.
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25
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Liu J, Wang S. Convenient and highly sensitive detection of Cu2+ using chitosan solid film with g-C3N4 nanosheets. JOURNAL OF POLYMER ENGINEERING 2021. [DOI: 10.1515/polyeng-2020-0054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractA solid fluorescence sensor composed of g-C3N4 nanosheets and chitosan solid film was fabricated by electrostatic interaction. The g-C3N4 nanosheet/chitosan solid film showed selectivity and sensitivity to Cu2+ which was higher than that of other metal ions in common use. Cu2+ ions were found to efficiently bind and quench the fluorescence of the g-C3N4 nanosheet/chitosan solid film. The absorption band of the g-C3N4 nanosheet/chitosan solid film was at 240 nm in the presence of Cu2+, and the maximum emission peak was at 380 nm. Copper ion concentrations were between 0 and 3.1 × 10−5 mol/L at pH 7, the detection limit is 5 nM, compared with previous reports, it was much lower than before. Good linear relationships existed between the metal ion concentration and fluorescence intensity of g-C3N4 nanosheets in the quenching and recovering processes. This is the first study to report on the detection of Cu2+ by utilizing g-C3N4 nanosheet/chitosan composite film. The as-prepared films were conveniently prepared, easy to operate, and recyclable, as well as sensitive and selective to detect Cu2+ in water. All these features indicate the sensor’s potential application in disease diagnosis.
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Affiliation(s)
- Jing Liu
- School of Chemistry and Chemical Engineering, Xianyang Normal University, Xianyang, 712000, PR China
| | - Shan Wang
- School of Chemistry and Chemical Engineering, Xianyang Normal University, Xianyang, 712000, PR China
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Ti M, Li Y, Li Z, Zhao D, Wu L, Yuan L, He Y. A ratiometric nanoprobe based on carboxylated graphitic carbon nitride nanosheets and Eu3+ for the detection of tetracyclines. Analyst 2021; 146:1065-1073. [DOI: 10.1039/d0an01826k] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient and rapid method that combines a fluorescent nanoprobe based on C-g-C3N4-Eu3+ with a smartphone and test paper has been developed for the in situ detection of tetracyclines.
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Affiliation(s)
- Mengru Ti
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- China
| | - Yasi Li
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- China
| | - Zhongqiu Li
- College of Chemical and Pharmaceutial Engineering (CCPE)
- Hebei University of Science and Technology
- Shijiazhuang 050000
- China
| | - Dongxu Zhao
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- China
| | - Li Wu
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- China
- State Key Laboratory of Natural and Biomimetic Drugs
| | - Longfei Yuan
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- China
- State Key Laboratory of Integrated Management of Pest Insects and Rodents
| | - Yujian He
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- China
- State Key Laboratory of Natural and Biomimetic Drugs
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27
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Hu Y, Chen Y, Tang Q, Liu H. A sandwich-type ECL immunosensor for the sensitive determination of CEA content based on red emission carbon quantum dots as luminophores. NEW J CHEM 2021. [DOI: 10.1039/d1nj01002f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A novel electrochemiluminescent immunosensor was constructed based on the quenching effect between red emission carbon quantum dots and aminated graphene.
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Affiliation(s)
- Yuefang Hu
- College of Materials and Chemical Engineering
- Hezhou University
- Hezhou
- China
| | - Yuxin Chen
- Faculty of Chinese Medicine Science, Guangxi University of Chinese Medicine
- Nanning
- China
| | - Quan Tang
- College of Materials and Chemical Engineering
- Hezhou University
- Hezhou
- China
| | - Hanfu Liu
- College of Pharmacy, Guilin Medical University
- Guilin
- China
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Zou R, Teng X, Lin Y, Lu C. Graphitic carbon nitride-based nanocomposites electrochemiluminescence systems and their applications in biosensors. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116054] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Majdoub M, Anfar Z, Amedlous A. Emerging Chemical Functionalization of g-C 3N 4: Covalent/Noncovalent Modifications and Applications. ACS NANO 2020; 14:12390-12469. [PMID: 33052050 DOI: 10.1021/acsnano.0c06116] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Atomically 2D thin-layered structures, such as graphene nanosheets, graphitic carbon nitride nanosheets (g-C3N4), hexagonal boron nitride, and transition metal dichalcogenides are emerging as fascinating materials for a good array of domains owing to their rare physicochemical characteristics. In particular, graphitic carbon nitride has turned into a hot subject in the scientific community due to numerous qualities such as simple preparation, electrochemical properties, high adsorption capacity, good photochemical properties, thermal stability, and acid-alkali chemical resistance, etc. Basically, g-C3N4 is considered as a polymeric material consisting of N and C atoms forming a tri-s-triazine network connected by planar amino groups. In comparison with most C-based materials, g-C3N4 possesses electron-rich characteristics, basic moieties, and hydrogen-bonding groups owing to the presence of hydrogen and nitrogen atoms; therefore, it is taken into account as an interesting nominee to further complement carbon in applications of functional materials. Nevertheless, g-C3N4 has some intrinsic limitations and drawbacks mainly related to a relatively poor specific surface area, rapid charge recombination, a limited light absorption range, and a poor dispersibility in both aqueous and organic mediums. To overcome these shortcomings, numerous chemical modification approaches have been conducted with the aim of expanding the range of application of g-C3N4 and enhancing its properties. In the current review, the comprehensive survey is conducted on g-C3N4 chemical functionalization strategies including covalent and noncovalent approaches. Covalent approaches consist of establishing covalent linkage between the g-C3N4 structure and the chemical modifier such as oxidation/carboxylation, amidation, polymer grafting, etc., whereas the noncovalent approaches mainly consist of physical bonding and intermolecular interaction such as van der Waals interactions, electrostatic interactions, π-π interactions, and so on. Furthermore, the preparation, characterization, and diverse applications of functionalized g-C3N4 in various domains are described and recapped. We believe that this work will inspire scientists and readers to conduct research with the aim of exploring other functionalization strategies for this material in numerous applications.
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Affiliation(s)
- Mohammed Majdoub
- Laboratory of Materials, Catalysis & Valorization of Natural Resources, Hassan II University, Casablanca 20000, Morocco
| | - Zakaria Anfar
- Laboratory of Materials & Environment, Ibn Zohr University, Agadir 80000, Morocco
- Institute of Materials Science of Mulhouse, Haute Alsace University, Mulhouse 68100, France
- Strasbourg University, Strasbourg 67081, France
| | - Abdallah Amedlous
- Laboratory of Materials, Catalysis & Valorization of Natural Resources, Hassan II University, Casablanca 20000, Morocco
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Jiang Z, Zhang X, Chen HS, Yang P, Jiang SP. Fusiform-Shaped g-C 3 N 4 Capsules with Superior Photocatalytic Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003910. [PMID: 32964669 DOI: 10.1002/smll.202003910] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/18/2020] [Indexed: 06/11/2023]
Abstract
Carbon nitride (g-C3 N4 ) nanostructure rebuilding is an effective means to modify its photocatalytic properties, especially the hollow micron-nanostructure. The increased scattering in the body effectively improves the light utilization efficiency and improves catalytic properties. In this work, fusiform-shaped g-C3 N4 capsules are created by controlling the nucleation kinetics of supramolecular assemblies. The fusiform-shaped capsule micron-nanostructure is synthesized with ultrathin wall thickness and adjusted carbon/nitride ratios which decrease the recombination rate of photo-generated carriers. The hollow nanostructure and relatively higher specific surface area of the fusiform-shaped capsule effectively enhance light scattering inside body and lead to an enhanced carrier utilization efficiency. Moreover, the decrease of bandgap and relatively negative conduction band position affect the response of hollow fusiform-shaped g-C3 N4 capsules (Hf-g-C3 N4 ) in visible light region and improve the photo-reducing performance. In term of H2 evolution property, Hf-g-C3 N4 has been improved to 7052 µmol g-1 h-1 , which is 10.9 times higher compared with bulk structure. More importantly, Hf-g-C3 N4 can produce CH4 at the rate of 1.63 µmol g-1 h-1 without help of co-catalyst and hole sacrificial agent in the photocatalytic reduction reaction of CO2 to CH4 . At same time, the selective photocatalytic reduction of CO2 is another advantage of Hf-g-C3 N4 .
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Affiliation(s)
- Zhixiang Jiang
- School of Material Science & Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Xiao Zhang
- Fuels and Energy Technology Institute and Department of Chemical Engineering, Curtin University, Perth, WA6845, Australia
| | - Hsueh-Shih Chen
- Department of Materials Science & Engineering, National Tsing Hua University, Hsinchu City, 300, Taiwan
| | - Ping Yang
- School of Material Science & Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - San Ping Jiang
- Fuels and Energy Technology Institute and Department of Chemical Engineering, Curtin University, Perth, WA6845, Australia
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31
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Fang D, Zeng B, Zhang S, Dai H, Lin Y. A self-enhanced electrochemiluminescent ratiometric zearalenone immunoassay based on the use of helical carbon nanotubes. Mikrochim Acta 2020; 187:303. [PMID: 32350687 DOI: 10.1007/s00604-020-04278-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 04/13/2020] [Indexed: 01/23/2023]
Abstract
A self-enhanced electrochemiluminescent ratiometric immunoassay for zearalenone is described. A system composed of N-aminobutyl-N-ethylisoluminol (ABEI) and glutathione (GSH) produces a strong electrochemiluminescence (ECL) at an applied potential of 0.8 V, probably because of short electron transfer distance and reduced energy loss. The method also uses octahedral anatase mesocrystals (OAM) with a large specific surface facilitating immobilization of ABEI and GSH. Helical carbon nanotubes, possessing a large specific surface, superior mechanical stability, and excellent electrical conductivity which serve as a solid support, greatly enhanced the loading capacity for g-C3N4 nanosheets and horseradish peroxidase-labeled anti-antibody. The peroxidase accelerates the decomposition of H2O2 to produce reactive oxygen species (ROSs), amplifying the blue ECL of ABEI and the green ECL of g-C3N4. The ratiometric sandwich immunoassay (performed by the ratio of ECL intensity at - 1.3 V and 0.8 V) allows for sensitive and reliable determination of ZEN in a wide linear range from 1.0 × 10-4 ng/mL to 10 ng/mL. The method was successfully applied to the analysis of corn hazelnut samples for ZEN. Graphical abstract Schematic presentation of a self-enhanced electrochemiluminescent ratiometric immunosensor based on octahedral anatase mesocrystals (OAM) supported ABEI-glutathione (GSH) and g-C3N4 functionalized helical carbon nanotubes (HCNT) for zearalenone (ZEN) determination.
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Affiliation(s)
- Dandan Fang
- College of Chemistry and Material, Fujian Normal University, Fuzhou, 350108, Fujian, China
| | - Baoshan Zeng
- College of Chemistry and Material, Fujian Normal University, Fuzhou, 350108, Fujian, China
| | - Shupei Zhang
- Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350108, Fujian, China
| | - Hong Dai
- College of Chemistry and Material, Fujian Normal University, Fuzhou, 350108, Fujian, China.
| | - Yanyu Lin
- College of Chemistry and Material, Fujian Normal University, Fuzhou, 350108, Fujian, China.,Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350108, Fujian, China
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32
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Ding H, Guo W, Su B. Electrochemiluminescence Single‐Cell Analysis: Intensity‐ and Imaging‐Based Methods. Chempluschem 2020; 85:725-733. [DOI: 10.1002/cplu.202000145] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/25/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Hao Ding
- Institute of Analytical ChemistryDepartment of ChemistryZhejiang University Hangzhou 310058 P. R. China
| | - Weiliang Guo
- Institute of Analytical ChemistryDepartment of ChemistryZhejiang University Hangzhou 310058 P. R. China
| | - Bin Su
- Institute of Analytical ChemistryDepartment of ChemistryZhejiang University Hangzhou 310058 P. R. China
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33
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Su S, Zhang Y, Hu W, Zhang X, Ju D, Jia C, Liu J. Efficient and synergistic decolourization and nitrate removal using a single-chamber with a coupled biocathode-photoanode system. Bioelectrochemistry 2020; 132:107439. [DOI: 10.1016/j.bioelechem.2019.107439] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/05/2019] [Accepted: 12/05/2019] [Indexed: 01/17/2023]
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34
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Song C, Li X, Hu L, Shi T, Wu D, Ma H, Zhang Y, Fan D, Wei Q, Ju H. Quench-Type Electrochemiluminescence Immunosensor Based on Resonance Energy Transfer from Carbon Nanotubes and Au-Nanoparticles-Enhanced g-C 3N 4 to CuO@Polydopamine for Procalcitonin Detection. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8006-8015. [PMID: 31972073 DOI: 10.1021/acsami.9b22782] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A new type of sandwich electrochemiluminescence (ECL) immunosensor dependent on ECL resonance energy transfer (ECL-RET) to achieve sensitive detection of procalcitonin (PCT) has been designed. In brief, carbon nanotubes (CNT) and Au-nanoparticles-functionalized graphitic carbon nitride (g-C3N4-CNT@Au) and CuO nanospheres covered with polydopamine (PDA) layer (CuO@PDA) were synthesized and applied as ECL donor and receptor, respectively. g-C3N4-CNT nanomaterials were in situ prepared on the basis of π-π conjugation, and the CNT content in the composite were optimized to achieve a strong and stable ECL signal. At the same time, Au nanoparticles were used to functionalize g-C3N4-CNT to further increase the ECL intensity and the loading amount of primary antibody (Ab1). Moreover, CuO@PDA was first used to successfully quench the ECL signal of g-C3N4-CNT@Au. Under the optimum experimental conditions, the linear detection range for PCT concentration was within 0.0001-10 ng mL-1 and the detection limit was 25.7 fg mL-1 (S/N = 3). Considering prominent specificity, reproducibility, and stability, the prepared immunosensor was used to assess recovery rate of PCT in human serum according to the standard addition method and the result was satisfactory. In addition, it is worth mentioning that a novel ECL-RET pair of g-C3N4-CNT@Au (donor)/CuO@PDA (acceptor) was first developed, which offered an effective analytical tool for sensitive detection of biomarkers in early disease diagnostics.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Huangxian Ju
- Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , P.R. China
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35
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Huang Q, Chen Y, Hao L, Zhou R, Li Y, Li Q, Zhu B, Cai X. Pegylated carbon nitride nanosheets for enhanced reactive oxygen species generation and photodynamic therapy under hypoxic conditions. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 25:102167. [PMID: 32006685 DOI: 10.1016/j.nano.2020.102167] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 12/22/2019] [Accepted: 01/02/2020] [Indexed: 02/05/2023]
Abstract
The application of photodynamic therapy (PDT) is of ever-increasing importance in the treatment of malignant tumors; however, there are several major constraints that make it impossible to achieve optimal therapeutic effects. Our objective is to develop a novel photosensitizing drug for skin cancer. In the experiment, we fabricated four-arm-poly ethylene glycol modified amino-rich graphite phase carbon nitride nanosheets (AGCN-PEG), which have good stability in physiological solution and show selective accumulation in tumor cells. Under hypoxic conditions, the AGCN-PEG induced PDT can effectively inhibit growth on A431 human epidermoid carcinoma cells in vivo and in vitro. What's more, after being combined with TMPyP4, the therapeutic effect of AGCN-PEG was greatly improved.
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Affiliation(s)
- Qian Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, China; Department of Implant Dentistry, Stomatologic Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yang Chen
- Department of Liver Surgery& Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Liying Hao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ronghui Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yanjing Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qirong Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bofeng Zhu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an, China; Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou, PR China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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36
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Feng Z, Zhao RJ, Lu ZH, Jia LP, Ma RN, Zhang W, Shang L, Xue QW, Wang HS. Construction of aptasensors for sensitive detection of 8-OH-dG based on a diffusion mediated electrochemiluminescence quenching effect. Chem Commun (Camb) 2020; 56:11074-11077. [DOI: 10.1039/d0cc04492j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A DNA immobilization-free electrochemiluminescence aptasensor was developed for the detection of 8-hydroxy-2′-deoxygunosine based on the diffusion mediated electrochemiluminescence quenching effect and dual signal amplification strategies.
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Affiliation(s)
- Zhe Feng
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Rui-Juan Zhao
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Ze-Hua Lu
- Liaocheng Veterans Hospital
- Liaocheng 252000
- China
| | - Li-ping Jia
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Rong-Na Ma
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Wei Zhang
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Lei Shang
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Qing-Wang Xue
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Huai-Sheng Wang
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
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37
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Hu H, Hu J, Wang X, Gan J, Su M, Ye W, Zhang W, Ma X, Wang H. Enhanced reduction and oxidation capability over the CeO 2/g-C 3N 4 hybrid through surface carboxylation: performance and mechanism. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00395f] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The charge separation efficiency of the CeO2/g-C3N4 heterojunction was greatly enhanced through surface carboxylation of the g-C3N4 substrate.
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Affiliation(s)
- Haiping Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan
- P. R. China
- School of Materials and Chemical Engineering
| | - Jisong Hu
- School of Science
- Hubei University of Technology
- Wuhan
- P. R. China
| | - Xiuyuan Wang
- College of Chemistry and Molecular Science
- Wuhan University
- Wuhan
- P. R. China
| | - Jianchang Gan
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan
- P. R. China
- School of Materials and Chemical Engineering
| | - Ming Su
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan
- P. R. China
- School of Materials and Chemical Engineering
| | - Wenhua Ye
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan
- P. R. China
- School of Materials and Chemical Engineering
| | - Wenhua Zhang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan
- P. R. China
- School of Materials and Chemical Engineering
| | - Xinguo Ma
- School of Science
- Hubei University of Technology
- Wuhan
- P. R. China
| | - Huihu Wang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan
- P. R. China
- School of Materials and Chemical Engineering
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38
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Liu H, Yin H, Yang T, Ding H, Dong Y. Electrogenerated chemiluminescence resonance energy transfer between ZnGa2O4/g-C3N4 and gold nanoparticles/graphene and its application in the detection of thrombin. Analyst 2020; 145:7412-7420. [DOI: 10.1039/d0an01558j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A label-free ECL sensor for thrombin was fabricated based on ECL resonance energy transfer occurred between ZnGa2O4/g-C3N4 and AuNP/GR nanocomposites, which revealed a new role of spinel-type semiconductor oxides in the fabrication of ECL sensors.
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Affiliation(s)
- Hui Liu
- School of Chemistry and Chemical Engineering
- Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization
- Institute of Material Science and Engineering
- Anhui University of Technology
- Maanshan 243002
| | - Hao Yin
- School of Chemistry and Chemical Engineering
- Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization
- Institute of Material Science and Engineering
- Anhui University of Technology
- Maanshan 243002
| | - TingTing Yang
- School of Chemistry and Chemical Engineering
- Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization
- Institute of Material Science and Engineering
- Anhui University of Technology
- Maanshan 243002
| | - HouCheng Ding
- School of Chemistry and Chemical Engineering
- Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization
- Institute of Material Science and Engineering
- Anhui University of Technology
- Maanshan 243002
| | - YongPing Dong
- School of Chemistry and Chemical Engineering
- Anhui Province Key Laboratory of Coal Clean Conversion and High Valued Utilization
- Institute of Material Science and Engineering
- Anhui University of Technology
- Maanshan 243002
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Dendritic core-shell rhodium@platinum-cobalt nanocrystals for ultrasensitive electrochemical immunoassay of squamous cell carcinoma antigen. J Colloid Interface Sci 2019; 555:647-654. [DOI: 10.1016/j.jcis.2019.08.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/02/2019] [Accepted: 08/03/2019] [Indexed: 12/14/2022]
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40
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Wang Y, Zhang Y, Sha H, Xiong X, Jia N. Design and Biosensing of a Ratiometric Electrochemiluminescence Resonance Energy Transfer Aptasensor between a g-C 3N 4 Nanosheet and Ru@MOF for Amyloid-β Protein. ACS APPLIED MATERIALS & INTERFACES 2019; 11:36299-36306. [PMID: 31514493 DOI: 10.1021/acsami.9b09492] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A dual-wavelength ratiometric electrochemiluminescence resonance energy transfer (ECL-RET) aptasensor based on the carbon nitride nanosheet (g-C3N4 NS) and metal-organic frameworks (Ru@MOFs) as energy donor-receptor pairs is first designed for the detection of the amyloid-β (Aβ) protein. The cathode ECL of g-C3N4 NS gradually decreased, whereas the anode ECL from Ru@MOF pyramidally enhanced along with the increasing concentration of Aβ in a 0.1 M phosphate-buffered saline solution containing 0.1 M S2O82-. Additionally, it is worth noting that 2-amino terephthalic acid from MOF not only can load abundant amounts of luminophor Ru(bpy)32+ but also promote the conversion of more amounts of S2O82- that served as a coreactant accelerator into SO4•-, further enhancing the ECL signal of Ru@MOF. Besides, the ECL intensity from the g-C3N4 NS had a tremendous spectrum overlap with the UV-vis spectrum of Ru@MOF, demonstrating the high-efficiency ECL-RET from g-C3N4 NS to Ru@MOF. According to the ratio of ECL460nm/ECL620nm, the constructed aptasensor for the detection of Aβ showed a wide linear range from 10-5 to 500 ng/mL and a low detection limit of 3.9 fg/mL (S/N = 3) with a correction coefficient of 0.9965. The obtained results certified that the dual-wavelength ratiometric ECL sensor could provide a reliable direction and have the potential for application in biosensing and clinical diagnosis fields.
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Affiliation(s)
- Yinfang Wang
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, College of Chemistry and Materials Science, Department of Chemistry , Shanghai Normal University , Shanghai 200234 , China
| | - Yao Zhang
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, College of Chemistry and Materials Science, Department of Chemistry , Shanghai Normal University , Shanghai 200234 , China
| | - Haifeng Sha
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, College of Chemistry and Materials Science, Department of Chemistry , Shanghai Normal University , Shanghai 200234 , China
| | - Xin Xiong
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, College of Chemistry and Materials Science, Department of Chemistry , Shanghai Normal University , Shanghai 200234 , China
| | - Nengqin Jia
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, College of Chemistry and Materials Science, Department of Chemistry , Shanghai Normal University , Shanghai 200234 , China
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41
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Ionic liquid and spatially confined gold nanoparticles enhanced photoelectrochemical response of zinc-metal organic frameworks and immunosensing squamous cell carcinoma antigen. Biosens Bioelectron 2019; 142:111540. [DOI: 10.1016/j.bios.2019.111540] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 02/05/2023]
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42
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Zhang Y, Wang F, Zhang H, Wang H, Liu Y. Multivalency Interface and g-C3N4 Coated Liquid Metal Nanoprobe Signal Amplification for Sensitive Electrogenerated Chemiluminescence Detection of Exosomes and Their Surface Proteins. Anal Chem 2019; 91:12100-12107. [DOI: 10.1021/acs.analchem.9b03427] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yimeng Zhang
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Feng Wang
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Huixin Zhang
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Hongye Wang
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Yang Liu
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China
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43
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Li L, Zhao Y, Li X, Ma H, Wei Q. Label-free electrochemiluminescence immunosensor based on Ce-MOF@g-C3N4/Au nanocomposite for detection of N-terminal pro-B-type natriuretic peptide. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113222] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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44
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Qian X, Zhou X, Qu Q, Li L, Yang L. Ultrasensitive and robust electrochemical sensing platform for the detection of squamous cell carcinoma antigen using water-soluble pillar [5]arene-Pd/MoS2 nanocomposites. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.05.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Guo Z, Li B, Zhang Y, Zhao Q, Zhao J, Li L, Feng L, Wang M, Meng X, Zuo G. Acid‐treated Graphitic Carbon Nitride Nanosheets as Fluorescence Probe for Detection of Hemin. ChemistrySelect 2019. [DOI: 10.1002/slct.201901841] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zhaoliang Guo
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
| | - Bingdong Li
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
| | - Yuqian Zhang
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
| | - Qiannan Zhao
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
| | - Jian Zhao
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
| | - Lijuan Li
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
| | - Liwei Feng
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
| | - Manman Wang
- School of Public HealthNorth China University of Science and Technology Tangshan 063210
| | - Xianguang Meng
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
| | - Guifu Zuo
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and Technology Tangshan 063210
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46
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Fang J, Zhao G, Dong X, Li X, Miao J, Wei Q, Cao W. Ultrasensitive electrochemiluminescence immunosensor for the detection of amyloid-β proteins based on resonance energy transfer between g-C 3N 4 and Pd NPs coated NH 2-MIL-53. Biosens Bioelectron 2019; 142:111517. [PMID: 31349185 DOI: 10.1016/j.bios.2019.111517] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/27/2019] [Accepted: 07/14/2019] [Indexed: 01/19/2023]
Abstract
An electrochemiluminescence (ECL) analytical platform was proposed for ultrasensitive detection of amyloid-β proteins (Aβ) based on the ECL resonance energy transfer (ECL-RET). In this work, gold nanoparticles-functionalized graphitic carbon nitride nanosheets (g-C3N4@Au NPs) and palladium nanoparticles-coated Metal organic framework (Pd NPs@NH2-MIL-53) were synthesized, which were as ECL donor and ECL acceptor respectively. A strong cathode ECL emission was obtained from the g-C3N4@Au NPs when used K2S2O8 as its co-reactant. Here, Au NPs not only was used as an accelerator to enhance and stabilize the ECL signal, but also a connector for attaching Aβ antibody. In addition, NH2-MIL-53(Al) was selected as a label material for supporting Pd NPs to synergistically increase the intensity and range of UV-visible absorption. The ECL signal of g-C3N4@Au NPs was intensely decreased when the ECL acceptor probe Pd NPs@NH2-MIL-53 was incubated onto the modified GCE by way of the specific recognition. Under the optimal condition, a wide detection range from 10 fg/mL to 50 ng/mL and a low detection limit of 3.4 fg/mL (S/N = 3) were obtained. In consideration of favorable specificity, stability and reproducibility, the proposed method was successfully applied for Aβ detection in actual human serum samples and could be a potential analytical tool for sensitive molecular trace detection in clinical analysis.
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Affiliation(s)
- Jinglong Fang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Guanhui Zhao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Xue Dong
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Xuan Li
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Juncong Miao
- 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
| | - Wei Cao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
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47
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Enhanced photoelectrochemical sensing based on novel synthesized Bi 2S 3@Bi 2O 3 nanosheet heterostructure for ultrasensitive determination of L-cysteine. Anal Bioanal Chem 2019; 411:3059-3068. [PMID: 30919017 DOI: 10.1007/s00216-019-01765-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/23/2019] [Accepted: 03/06/2019] [Indexed: 10/27/2022]
Abstract
The design of a low-cost and highly efficient photoactive heterojunction material for sensing is still a challenging issue. On the basis of the formation of sheet-like Bi2O3 via coating Bi2S3, a novel Bi2O3@Bi2S3 heterostructure is controllably synthesized via a facile water bath approach. The prepared Bi2O3@Bi2S3 nanosheets show a superior photoelectrochemical (PEC) performance for the detection of L-cysteine (L-Cys), and the photocurrent signal is three and four times higher than those of Bi2S3 and Bi2O3 under visible irradiation, respectively. Also, the heterostructure presents an outstanding linear range for the detection of L-Cys: 0.1-10,000 μM. In addition, the mechanism of improved PEC response of Bi2O3@Bi2S3 nanosheets is investigated according to the estimated energy band positions. Thus, the integration of the novel heterostructure and the photoelectrochemical technique demonstrates a rapid photocurrent response, showing a great effect on the performance of the sensing system and a new PEC method for highly selective and sensitive chemical detection. Graphical abstract.
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48
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Nanoparticle-based electrochemiluminescence cytosensors for single cell level detection. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.11.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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49
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Ranjith Kumar J, Rami Reddy E, Trivedi R, Vardhaman AK, Giribabu L, Mirzadeh N, Bhargava SK. Isophorone-boronate ester: A simple chemosensor for optical detection of fluoride anion. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4688] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jakku Ranjith Kumar
- Catalysis and Fine Chemicals Division; CSIR-Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
- IICT-RMIT Centre, CSIR- Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science; RMIT University; GPO Box 2476 Melbourne 3001 Australia
| | - Eda Rami Reddy
- Catalysis and Fine Chemicals Division; CSIR-Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
| | - Rajiv Trivedi
- Catalysis and Fine Chemicals Division; CSIR-Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
- IICT-RMIT Centre, CSIR- Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
| | - Anil Kumar Vardhaman
- Polymer and Functional Materials Division; CSIR-Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
| | - Lingamallu Giribabu
- Polymer and Functional Materials Division; CSIR-Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
| | - Nedaossadat Mirzadeh
- IICT-RMIT Centre, CSIR- Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science; RMIT University; GPO Box 2476 Melbourne 3001 Australia
| | - Suresh K. Bhargava
- IICT-RMIT Centre, CSIR- Indian Institute of Chemical Technology; Uppal Road, Tarnaka Hyderabad 500007 India
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science; RMIT University; GPO Box 2476 Melbourne 3001 Australia
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50
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Cao HX, Wang L, Pan CG, He YS, Liang GX. Aptamer based electrochemiluminescent determination of bisphenol A by using carboxylated graphitic carbon nitride. Mikrochim Acta 2018; 185:463. [PMID: 30225568 DOI: 10.1007/s00604-018-2997-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/08/2018] [Indexed: 12/14/2022]
Abstract
An electrochemiluminescence (ECL) based assay is described for the determination of the endocrine disruptor bisphenol A (BPA). The method is based on the use of carboxylated graphitic carbon nitride (C-g-C3N4) carrying an immobilized aptamer against BPA. In the presence of BPA, the ECL signal decreases due to ECL energy transfer from excited-state C-g-C3N4 to the BPA oxidation product. Under the optimal conditions, ECL intensity increases linearly in the 0.1 pM to 1 nM BPA concentration range. The detection limit is as low as 30 fM. The assay has excellent sensitivity, outstanding stability and high selectivity. It was applied to the determination of BPA in spiked water samples. Graphical abstract Aptamer modified carboxylated graphitic carbon nitride was synthesized and applied in an electrochemiluminescence-based aptasensor for bisphenol A.
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Affiliation(s)
- Hai-Xia Cao
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Li Wang
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China.
| | - Chang-Gang Pan
- School of the Environment, Jiangsu University, Zhenjiang, 212013, China
| | - Yu-Sheng He
- School of the Environment, Jiangsu University, Zhenjiang, 212013, China
| | - Guo-Xi Liang
- School of the Environment, Jiangsu University, Zhenjiang, 212013, China.
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