1
|
Chen W, Li X, Tao M, Zhang H, Zhang Q, Yue Y, Zuo G, Zhao J. Enhanced electrochemiluminescence of dual-defect graphite carbon nitride for ultrasensitive detection of CEA. Bioelectrochemistry 2024; 160:108781. [PMID: 39047393 DOI: 10.1016/j.bioelechem.2024.108781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/08/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024]
Abstract
Herein, a dual-defective graphite carbon nitride (DDCN) was prepared by polymerization under N2 atmosphere combined with oxidation treatment. The luminous intensity of dual-defect graphite phase carbon nitride based on defect state luminescence is significantly improved compared to CN-air. On this basis, a biosensor for CEA detection was constructed based on specific immunobinding of antigen-antibody. It is noted that the biosensor exhibits a wide linear range of 1 × 10-5 ∼ 1 × 102 ng•mL-1, a low detection limit of 3.3 × 10-4 pg•mL-1, a recovery of 94 %∼105 % and RSD less than 4.41 %. In addition, there was no significant difference to the clinical results, indicating that this work has good clinical application prospects.
Collapse
Affiliation(s)
- Wenjie Chen
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Xieyin Li
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Minjia Tao
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Hao Zhang
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Qian Zhang
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Yuchen Yue
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Guifu Zuo
- Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China.
| | - Junjian Zhao
- Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| |
Collapse
|
2
|
Li F, Peng H, Shen N, Yang C, Zhang L, Li B, He J. Electrochemiluminescence in Graphitic Carbon Nitride Decorated with Silver Nanoparticles for Dopamine Determination Using Machine Learning. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27767-27777. [PMID: 38752680 DOI: 10.1021/acsami.4c03996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Electrochemiluminescence (ECL) luminophores with wavelength-tunable multicolor emissions are essential for multicolor ECL imaging detection and multiplexed analysis. In this work, silver nanoparticle (Ag NP)-decorated graphitic carbon nitride (g-CN@Ag) nanocomposites were synthesized. The morphology, chemical composition, structure, and ECL property of g-CN@Ag were investigated. The prepared g-CN, g-CN@Ag1, g-CN@Ag5, and g-CN@Ag10 can produce blue, blue-green, chartreuse, and yellow colored ECL emissions, respectively, by using K2S2O8 as the coreagent. The ECL emission wavelength of g-CN@Ag can be regulated from 460 to 565 nm by modulating the content of the immobilized Ag NPs. Then, a multicolor ECL detection array was fabricated by using g-CN, g-CN@Ag1, g-CN@Ag5, and g-CN@Ag10 as four ECL luminophores. Dopamine was detected based on its inhibition effect on the multicolor ECL emissions. The linear range is from 0.1 nM to 1 mM with the lowest detection limit of 44 pM. Then, machine learning-assisted multiparameter concentration prediction of dopamine was further carried out by combining the deep neural network (DNN) algorithm. This work provides a new avenue to regulate the ECL emission wavelength of g-CN by using the metal nanoparticle modification strategy and presents an effective machine learning-assisted multicolor ECL detection strategy for accurate multiparameter quantitative detection.
Collapse
Affiliation(s)
- Fang Li
- Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Anhui Province Engineering Research Center of Flexible and Intelligent Materials, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
| | - Hao Peng
- Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Anhui Province Engineering Research Center of Flexible and Intelligent Materials, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
| | - Nuotong Shen
- Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Anhui Province Engineering Research Center of Flexible and Intelligent Materials, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
| | - Chen Yang
- Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Anhui Province Engineering Research Center of Flexible and Intelligent Materials, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
| | - Limin Zhang
- Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Anhui Province Engineering Research Center of Flexible and Intelligent Materials, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
| | - Bing Li
- Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Anhui Province Engineering Research Center of Flexible and Intelligent Materials, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
| | - Jianbo He
- Anhui Province Key Laboratory of Value-Added Catalytic Conversion and Reaction Engineering, Anhui Province Engineering Research Center of Flexible and Intelligent Materials, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
| |
Collapse
|
3
|
Two-Dimensional Graphitic Carbon Nitride (g-C 3N 4) Nanosheets and Their Derivatives for Diagnosis and Detection Applications. J Funct Biomater 2022; 13:jfb13040204. [PMID: 36412845 PMCID: PMC9680252 DOI: 10.3390/jfb13040204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/21/2022] [Accepted: 10/23/2022] [Indexed: 12/14/2022] Open
Abstract
The early diagnosis of certain fatal diseases is vital for preventing severe consequences and contributes to a more effective treatment. Despite numerous conventional methods to realize this goal, employing nanobiosensors is a novel approach that provides a fast and precise detection. Recently, nanomaterials have been widely applied as biosensors with distinctive features. Graphite phase carbon nitride (g-C3N4) is a two-dimensional (2D) carbon-based nanostructure that has received attention in biosensing. Biocompatibility, biodegradability, semiconductivity, high photoluminescence yield, low-cost synthesis, easy production process, antimicrobial activity, and high stability are prominent properties that have rendered g-C3N4 a promising candidate to be used in electrochemical, optical, and other kinds of biosensors. This review presents the g-C3N4 unique features, synthesis methods, and g-C3N4-based nanomaterials. In addition, recent relevant studies on using g-C3N4 in biosensors in regard to improving treatment pathways are reviewed.
Collapse
|
4
|
Chen X, Hong R, Chen H. Fabrication of PTCA-PANI composites for electromagnetic wave absorption and corrosion protection. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
5
|
The role of doping strategy in nanoparticle-based electrochemiluminescence biosensing. Bioelectrochemistry 2022; 148:108249. [PMID: 36029761 DOI: 10.1016/j.bioelechem.2022.108249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/23/2022]
Abstract
Doping plays a crucial role in electrochemiluminescence (ECL) due to the followings: (1) Modulation of electronic structure, alteration of the surface state of nanoparticles (NPs), providing effective protection from the surrounding environment, thereby leading to ECL emitters with exceptional properties including tunable spectra, high luminescence efficiency, low excitation potential, and good stability. (2) Employment of doped NPs as promising coreactant alternatives due to the presence of functional groups such as amines induced by NP doping. (3) Serving as novel co-reaction accelerators (CRAs) for ECL through doping induced high catalytic properties. (4) Behaving as excellent carriers to load ECL emitters, recognition elements, and catalysts due to doping-induced larger surface area, higher conductivity and better biocompatibility of NPs. As a consequence, doped NPs have aroused broad interest and found wide applications in various ECL sensing platforms. In this review, the current promising improvements, concepts, and excellent applications of doped NPs for ECL biosensing are addressed. We aim to bring to light the physicochemical characteristics of various doped NPs that endow them with appealing ECL performance, leading to diverse applications in biosensing.
Collapse
|
6
|
Flower-like titanium dioxide as novel co-reaction accelerator for ultrasensitive “off–on” electrochemiluminescence aptasensor construction based on 2D g-C3N4 layer for thrombin detection. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05136-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
7
|
Liu Y, Sun Y, Yang M. A double-potential ratiometric electrochemiluminescence platform based on g-C 3N 4 nanosheets (g-C 3N 4 NSs) and graphene quantum dots for Cu 2+ detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:903-909. [PMID: 33511388 DOI: 10.1039/d0ay02233k] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A new kind of convenient, low-cost double-potential ratiometric ECL sensing platform for the quantification of Cu2+ was developed with carbon nitride nanosheets (g-C3N4 NSs) and graphene quantum dots (GQDs) as ECL luminophores. g-C3N4 NSs mixed with multi-walled carbon nanotubes (MWCNTs) was immobilized on a glass carbon electrode (GCE) and produced strong cathodic ECL at a potential of -1.2 V (vs. Ag/AgCl), while GQDs in the solution gave anodic ECL at +2.5 V. MWCNTs were used here to amplify the ECL signal of g-C3N4 NSs. The addition of Cu2+ causes the cathodic ECL signal from g-C3N4 to decline, while the anodic ECL signal from GQDs remains unchanged. With the anodic ECL signal as an internal reference, a double-potential ratiometric ECL sensing platform for Cu2+ was established. The ratio of the cathodic signal intensity to anodic signal intensity showed a linear response to the Cu2+ concentration over a range from 5.0 × 10-10 to 1.0 × 10-6 mol L-1 and the detection limit was 0.37 nmol L-1 (3σ/S). Such a construction strategy alleviates the interference from the environment and therefore improves the detection accuracy of Cu2+. Compared with other methods for Cu2+ detection, this method is simpler and more sensitive.
Collapse
Affiliation(s)
- Yiming Liu
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China.
| | | | | |
Collapse
|
8
|
Zou R, Lin Y, Lu C. Nitrogen Vacancy Engineering in Graphitic Carbon Nitride for Strong, Stable, and Wavelength Tunable Electrochemiluminescence Emissions. Anal Chem 2021; 93:2678-2686. [PMID: 33459017 DOI: 10.1021/acs.analchem.0c05027] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
As an attractive electrochemiluminescence (ECL) emitter, graphitic carbon nitride (CN) still suffers from weak and unstable ECL signals for its poor conductivity and the occurrence of electrode passivation. In this study, a simple nitrogen vacancy (NV) engineering strategy has been developed for the improvement of ECL performances (intensity and stability) for the first time. In comparison to pristine CN (RSD = 51.98% for 10 continuous scan), ca. 60 times amplification in ECL intensity and 70 times enhancement in ECL efficiency for CN modified with NVs (CN-NVs) were obtained. In addition, more stable ECL emissions (RSD = 0.53%) were achieved for CN-NV-550 by thermal treatment of pristine CN in a N2 atmosphere for another 2 h at 550 °C. The mechanism study for the vital role of NVs on the ECL of CN-NVs revealed that NVs can not only facilitate electron transfer to amplify the ECL intensity but also serve as the electron trap to inhibit electrode passivation. More interestingly, a series of CN-NVs exhibited a tunable ECL wavelength range from 470 to 516 nm with different NV contents. Moreover, their ECL spectra showed an obvious red-shift of the wavelength with their corresponding fluorescence spectra. These findings confirmed that the ECL emissions of CN-NVs were susceptible to the relevant surface states of NVs. Our work may open up a promising pathway for improving ECL performances of CN and create new possibilities for multitarget simultaneous detection based on ECL and construction of color tunable light-emitting devices.
Collapse
Affiliation(s)
- Rui Zou
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yanjun Lin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| |
Collapse
|
9
|
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]
|
10
|
Li M, Wang C, Liu D. A novel “off-on” electrochemiluminescence sensor based on highly efficient resonance energy transfer in C-g-C3N4/CuO nanocomposite. Anal Chim Acta 2020; 1138:30-37. [DOI: 10.1016/j.aca.2020.08.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 12/01/2022]
|
11
|
Sha H, Yan B. Design of a ratiometric fluorescence sensor based on metal organic frameworks and Ru(bpy) 32+-doped silica composites for 17β-Estradiol detection. J Colloid Interface Sci 2020; 583:50-57. [PMID: 32971505 DOI: 10.1016/j.jcis.2020.09.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 12/24/2022]
Abstract
17β-Estradiol (E2), an important endocrine disrupting compound, could be quantitatively detected by fluorescence resonance energy transfer (FRET) aptasensor, designed in this paper. Metal organic frameworks have large specific surface area and easily modifiable groups, which are helpful for the construction of aptasensor. Specifically, streptavidin was immobilized on the synthesized MIL-53-NH2 by covalent bonding, and further linked with the biotin modified E2 aptamer (apt) through specific bonding between avidin and biotin to obtain the FRET donor probe (MIL-53-apt). Meanwhile, complementary DNA (cDNA) modified Ru(bpy)32+-doped silica nanoparticles (RuSiO2-cDNA) were prepared through covalent bonding. They acted as the FRET acceptor probe, since its absorption spectrum showed large overlap with the emission spectrum of MIL-53-apt. In the presence of E2, aptamer modified donor probes tended to bind with E2, owing to their higher selectivity and affinity. Therefore, the optimal distance between FRET pairs was broken, resulting in the fluorescence emission recovery of donor and the fluorescence emission of acceptor decreased. Under optimal conditions, this proposed aptasensor displayed sensitive detection of E2 ranging from 0.5 to 1000 nM with a detection limit of 0.2 nM. Furthermore, the sensor provides a promising method for rapid and sensitive detection of other small biological molecules.
Collapse
Affiliation(s)
- Haifeng Sha
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Bing Yan
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China; School of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China.
| |
Collapse
|
12
|
A sandwich electrochemiluminescent assay for determination of concanavalin A with triple signal amplification based on MoS2NF@MWCNTs modified electrode and Zn-MOF encapsulated luminol. Mikrochim Acta 2020; 187:523. [DOI: 10.1007/s00604-020-04472-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 08/02/2020] [Indexed: 12/11/2022]
|
13
|
An electrochemiluminescence biosensor based on boron nitride quantum dots as novel coreactant for quantitative determination of concanavalin A. Mikrochim Acta 2020; 187:409. [DOI: 10.1007/s00604-020-04385-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 06/13/2020] [Indexed: 12/29/2022]
|
14
|
Tang W, Tian Y, Chen B, Xu Y, Li B, Jing X, Zhang J, Xu S. Supramolecular Copolymerization Strategy for Realizing the Broadband White Light Luminescence Based on N-Deficient Porous Graphitic Carbon Nitride (g-C 3N 4). ACS APPLIED MATERIALS & INTERFACES 2020; 12:6396-6406. [PMID: 31916432 DOI: 10.1021/acsami.9b19338] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The N-deficient porous g-C3N4 with broadband white light emission was constructed by supramolecular copolymerization design, which combined organic copolymers cyanuric acid and 2,4,6-triaminopyrimidine with melamine upon the mixture gas environment of (95%)N2/(5%)H2. Herein, we achieved great breakthrough in narrowing the band gap of g-C3N4 from 2.64 to 1.39 eV. Furthermore, in contrast to pristine g-C3N4, we demonstrated that the emission wavelengths of N-deficient porous g-C3N4 can be tuned from narrow blue to broadband white range, where the optimal white light coordinate position is (0.297, 0.345). The prepared N-deficient porous g-C3N4 overcomes the limitation of the narrow adjusting range of optical properties while using conventional g-C3N4 and makes it more promising for applications in solid-state displays.
Collapse
Affiliation(s)
- Wenhua Tang
- Institute of Photoelectric Materials and Devices , China Jiliang University , Hangzhou 310018 , PR China
| | - Ying Tian
- Institute of Photoelectric Materials and Devices , China Jiliang University , Hangzhou 310018 , PR China
| | - BoWen Chen
- Institute of Optoelectronic Technology , China Jiliang University , Hangzhou 310018 , PR China
| | - Yayan Xu
- Institute of Photoelectric Materials and Devices , China Jiliang University , Hangzhou 310018 , PR China
| | - Bingpeng Li
- Institute of Photoelectric Materials and Devices , China Jiliang University , Hangzhou 310018 , PR China
| | - Xufeng Jing
- Institute of Optoelectronic Technology , China Jiliang University , Hangzhou 310018 , PR China
| | - Junjie Zhang
- Institute of Photoelectric Materials and Devices , China Jiliang University , Hangzhou 310018 , PR China
| | - Shiqing Xu
- Institute of Photoelectric Materials and Devices , China Jiliang University , Hangzhou 310018 , PR China
| |
Collapse
|
15
|
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.
Collapse
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
| |
Collapse
|
16
|
A ratiometric electrochemiluminescent immunoassay for calcitonin by using N-(aminobutyl)-N-(ethylisoluminol) and graphite-like carbon nitride. Mikrochim Acta 2019; 186:771. [DOI: 10.1007/s00604-019-3934-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/12/2019] [Indexed: 02/07/2023]
|
17
|
Zhou X, Zhang W, Wang Z, Han J, Xie G, Chen S. Ultrasensitive aptasensing of insulin based on hollow porous C 3N 4/S 2O 82-/AuPtAg ECL ternary system and DNA walker amplification. Biosens Bioelectron 2019; 148:111795. [PMID: 31665673 DOI: 10.1016/j.bios.2019.111795] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 11/29/2022]
Abstract
In this work, a high-efficiency electrochemiluminescence (ECL) ternary system was constructed for ultrasensitive assay of insulin based on hollow porous graphitic carbon nitride (HP-C3N4) as novel luminophore, S2O82- as coreactant and tri-metallic AuPtAg as coreaction accelerator. Specifically, in comparison with C3N4-based bulk nanomaterials, the as-prepared HP-C3N4 exhibits high luminous efficiency though decreased inner filter effect and minimized inactive ECL emitter. Noteworthy, tri-metallic AuPtAg, possessing the superiority of Au, Pt and Ag, was first used as coreaction accelerator to significantly enhance ECL intensity of HP-C3N4 and S2O82-. As a consequence, with the resultant ECL ternary (HP-C3N4/S2O82-/AuPtAg) system as aptasensing platform, a high-intense initial ECL signal was achieved. Subsequently, ferrocene-labeled quenching probe (Fc-HP2) as ECL quencher was used to quench the initial signal and achieve the low-background noise. Eventually, in the presence of insulin, the target-induced triple-helix molecular switch and Nb.BbvCI-assisted DNA walker amplification were executed to recover a strong ECL signal by releasing Fc-HP2 from the electrode surface. As expected, the constructed aptasensor presents an excellent sensitivity and selectivity for detecting insulin range from 0.05 pg mL-1 to 100 ng mL-1 with a detection limit of 17 fg mL-1. This work provides a new avenue for developing highly efficient HP-C3N4 based ECL ternary system as well as ultrasensitive ECL aptasensors for bioanalysis.
Collapse
Affiliation(s)
- Xumei Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi, 710127, PR China
| | - Wen Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi, 710127, PR China
| | - Zhen Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi, 710127, PR China
| | - Jing Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi, 710127, PR China.
| | - Gang Xie
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi, 710127, PR China
| | - Sanping Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi, 710127, PR China.
| |
Collapse
|
18
|
Wu Y, Chen Y, Zhang S, Zhang L, Gong J. Bifunctional S, N-Codoped carbon dots-based novel electrochemiluminescent bioassay for ultrasensitive detection of atrazine using activated mesoporous biocarbon as enzyme nanocarriers. Anal Chim Acta 2019; 1073:45-53. [DOI: 10.1016/j.aca.2019.04.068] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/25/2019] [Accepted: 04/28/2019] [Indexed: 01/06/2023]
|
19
|
Chan MH, Liu RS, Hsiao M. Graphitic carbon nitride-based nanocomposites and their biological applications: a review. NANOSCALE 2019; 11:14993-15003. [PMID: 31380525 DOI: 10.1039/c9nr04568f] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Quantum dots (QDs) have extensive application prospects in the fields of optics, magnetism, catalysis, and biomedicine. New carbon-doped QDs are currently being used in these research fields. Graphitic carbon nitride QDs (g-CNs) composed of only carbon and nitrogen have attracted attention because of their unique optical and catalytic properties. g-CNs have numerous electronic properties and can be used as photocatalytic modifiers in a wide range of applications in electrochemistry. Additionally, g-CNs also have biological potential and due to their chemical composition have extremely low toxicity; their blue light emission can be applied to biological imaging, and their appropriate energy level (2.7 eV) allows electrons to be deposited on their surface, which allows g-CNs to be used as photosensitizers in optical therapy. Finally, g-CNs can be combined with other nanomaterials to form composite materials, which can result in new advantages not seen in either of the materials alone. In this manuscript, we thoroughly report the most recent findings regarding the synthesis of g-CNs and their respective properties. We report the advantages of g-CNs conferred by their unique properties and their advantages for application in current biology and medicines.
Collapse
Affiliation(s)
- Ming-Hsien Chan
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan.
| | | | | |
Collapse
|
20
|
Sha H, Zhang Y, Wang Y, Ke H, Xiong X, Jia N. Electrochemiluminescence resonance energy transfer biosensor between the glucose functionalized MnO2 and g-C3N4 nanocomposites for ultrasensitive detection of concanavalin A. Biosens Bioelectron 2019; 124-125:59-65. [DOI: 10.1016/j.bios.2018.10.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 10/28/2022]
|
21
|
Liu H, Gao X, Zhuang X, Tian C, Wang Z, Li Y, Rogach AL. A specific electrochemiluminescence sensor for selective and ultra-sensitive mercury(ii) detection based on dithiothreitol functionalized copper nanocluster/carbon nitride nanocomposites. Analyst 2019; 144:4425-4431. [DOI: 10.1039/c9an00667b] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel electrochemiluminescence sensor based on the combination of copper nanoclusters and carbon nitride nanosheets was fabricated for detecting Hg2+.
Collapse
Affiliation(s)
- Huitao Liu
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Xueqing Gao
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Xuming Zhuang
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
- Department of Materials Science and Engineering
| | - Chunyuan Tian
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
| | - Zhenguang Wang
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
- China
| | - Yanxiu Li
- Department of Materials Science and Engineering
- and Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Kowloon
- Hong Kong SAR
| | - Andrey L. Rogach
- Department of Materials Science and Engineering
- and Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Kowloon
- Hong Kong SAR
| |
Collapse
|
22
|
Xavier MM, Nair PR, Mathew S. Emerging trends in sensors based on carbon nitride materials. Analyst 2019; 144:1475-1491. [DOI: 10.1039/c8an02110d] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A new class of functional materials, carbon nitrides, has recently attracted the attention of researchers.
Collapse
Affiliation(s)
- Marilyn Mary Xavier
- Research Scholar
- Advanced Molecular Materials Research Centre
- Mahatma Gandhi University
- Kottayam
- India
| | - P. Radhakrishnan Nair
- Visiting Professor
- Advanced Molecular Materials Research Centre
- Mahatma Gandhi University
- Kottayam
- India
| | - Suresh Mathew
- Professor
- School of Chemical Sciences
- Advanced Molecular Materials Research Centre
- Mahatma Gandhi University
- Kottayam
| |
Collapse
|
23
|
Zuo F, Zhang C, Zhang H, Tan X, Chen S, Yuan R. A solid-state electrochemiluminescence biosensor for Con A detection based on CeO2@Ag nanoparticles modified graphene quantum dots as signal probe. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.10.084] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
24
|
Fronczak M, Demby K, Strachowski P, Strawski M, Bystrzejewski M. Graphitic Carbon Nitride Doped with the s-Block Metals: Adsorbent for the Removal of Methyl Blue and Copper(II) Ions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7272-7283. [PMID: 29856628 DOI: 10.1021/acs.langmuir.8b01041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The synthesis of graphitic carbon nitride (g-C3N4) doped with s-block metals is described. The materials were synthesized via thermal polycondensation of cyanamide and the appropriate metal chloride. The inclusion of the metal precursor strongly influenced the surface chemistry features as well as the textural, morphological, and structural properties of the g-C3N4. The doping of g-C3N4with s-block metals markedly enhanced its adsorption performance, which was studied during the removal of two model solutes (methyl blue and copper ions) from aqueous solutions. The maximum adsorption capacity for the organic dye was increased by 680 times after the doping process. The uptake of copper(II) increased ca. 30 times for the doped g-C3N4. The improvement of the adsorption performance is discussed in terms of the surface chemistry and textural features.
Collapse
Affiliation(s)
- Maciej Fronczak
- Faculty of Chemistry , University of Warsaw , Pasteur 1 Street , PL 02093 Warsaw , Poland
| | - Katarzyna Demby
- Faculty of Chemistry , University of Warsaw , Pasteur 1 Street , PL 02093 Warsaw , Poland
| | - Przemysław Strachowski
- Faculty of Chemistry , University of Warsaw , Pasteur 1 Street , PL 02093 Warsaw , Poland
| | - Marcin Strawski
- Faculty of Chemistry , University of Warsaw , Pasteur 1 Street , PL 02093 Warsaw , Poland
| | - Michał Bystrzejewski
- Faculty of Chemistry , University of Warsaw , Pasteur 1 Street , PL 02093 Warsaw , Poland
| |
Collapse
|
25
|
Wang X, Li X, Chen W, Wang R, Bian W, Choi MMF. Phosphorus doped graphitic carbon nitride nanosheets as fluorescence probe for the detection of baicalein. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 198:1-6. [PMID: 29501001 DOI: 10.1016/j.saa.2018.02.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/03/2018] [Accepted: 02/22/2018] [Indexed: 05/25/2023]
Abstract
Phosphorus doped graphitic carbon nitride (P-g-C3N4) nanosheets were synthesized by calcination. P-g-C3N4 nanosheets were characterized by XRD, XPS, TEM, fluorescence, ultraviolet-visible absorption and Fourier transform infrared spectroscopy. The fluorescence of the P-g-C3N4 nanosheets was gradually quenched with the increase in the concentration of baicalein at room temperature. The proposed probe was used for the determination of baicalein in the concentration 2.0-30μM with a detection limit of 53nM. The quenching mechanism was discussed. The P-g-C3N4 nanosheets have been successfully applied for effective and selective detection of baicalein in human urine samples and blood samples.
Collapse
Affiliation(s)
- Xuan Wang
- College of Pharmacy, Shanxi Medical University, Taiyuan 030001, PR China
| | - Xuebing Li
- School of Basic Medical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Wenfang Chen
- School of Basic Medical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Rulin Wang
- School of Basic Medical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Wei Bian
- School of Basic Medical Science, Shanxi Medical University, Taiyuan 030001, PR China.
| | - Martin M F Choi
- Bristol Chinese Christian Church, Tyndale Baptist Church, 137-139 Whiteladies Road, Bristol BS8 2QG, United Kingdom
| |
Collapse
|
26
|
Zhang X, Chen F, Song X, He P, Zhang S. Proximity ligation detection of lectin Concanavalin A and fluorescence imaging cancer cells using carbohydrate functionalized DNA-silver nanocluster probes. Biosens Bioelectron 2018; 104:27-31. [DOI: 10.1016/j.bios.2017.12.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 12/28/2017] [Accepted: 12/30/2017] [Indexed: 01/04/2023]
|
27
|
Jin X, Fang G, Pan M, Yang Y, Bai X, Wang S. A molecularly imprinted electrochemiluminescence sensor based on upconversion nanoparticles enhanced by electrodeposited rGO for selective and ultrasensitive detection of clenbuterol. Biosens Bioelectron 2018; 102:357-364. [DOI: 10.1016/j.bios.2017.11.016] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/15/2017] [Accepted: 11/01/2017] [Indexed: 01/08/2023]
|
28
|
Du X, Jiang D, Dai L, Zhu W, Yang X, Hao N, Wang K. Oxygen Vacancy Engineering in Europia Clusters/Graphite-Like Carbon Nitride Nanostructures Induced Signal Amplification for Highly Efficient Electrochemiluminesce Aptasensing. Anal Chem 2018; 90:3615-3620. [PMID: 29397697 DOI: 10.1021/acs.analchem.8b00162] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Oxygen vacancy is an intrinsic defect in metal oxide semiconductors and has a crucial influence on their physicochemical and electronic properties. To boost the electrochemiluminescence (ECL) efficiency of the graphite-like carbon nitride (g-C3N4), the wet-chemical-calcination method was developed to introduce an oxygen vacancy in Eu-doped g-C3N4 nanostructures for the first time. The morphology and structure characterization suggest that the Eu element was present in the matrix of the europia (Eu2O3) clusters. Because of the effect of oxygen vacancy promoting catalytic activity, the doping of Eu caused a great positive shift of onset potential and large signal amplification in cathodic ECL signals compared with pure g-C3N4. Furthermore, a novel and ultrasensitive ECL aptasensor was realized with 17β-estradiol (E2) as a prototype target by adsorption of E2 aptamer onto the Eu2O3-doped g-C3N4 (Eu2O3- g-C3N4) surface via van der Waals force. Given the specific recognition between aptamer and E2, the ECL signal decreased with the increasing concentration of E2, because the formation of E2-aptamer complex impeded the diffusion of luminophor molecules and the electrons approaching the surface of the electrode. Under the optimal cases, the as-prepared ECL aptasensor showed superior performances and also manifested outstanding selectivity toward E2. The present conceptual strategy offers a novel methodology to boost the sensitivity of the ECL sensor and promote the activity of ECL reagents.
Collapse
Affiliation(s)
- Xiaojiao Du
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , P.R. China
| | - Ding Jiang
- Interdisciplinary Division of Biomedical Engineering , The Hong Kong Polytechnic University , Hung Hom, Kowloon , Hong Kong China
| | - Liming Dai
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , P.R. China
| | - Weiran Zhu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Xiaodi Yang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Nan Hao
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , P.R. China
| | - Kun Wang
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering , Jiangsu University , Zhenjiang , Jiangsu 212013 , P.R. China
| |
Collapse
|
29
|
Jiang J, Lin X, Ding D, Diao G. Graphitic-phase carbon nitride-based electrochemiluminescence sensing analyses: recent advances and perspectives. RSC Adv 2018; 8:19369-19380. [PMID: 35540965 PMCID: PMC9080761 DOI: 10.1039/c8ra02221f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 05/17/2018] [Indexed: 12/14/2022] Open
Abstract
This review describes the current trends in synthesis methods, signaling strategies, and sensing applications of g-C3N4-based ECL emitters.
Collapse
Affiliation(s)
- Jingjing Jiang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Xinyi Lin
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Dong Ding
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Guowang Diao
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| |
Collapse
|
30
|
Zhuo Y, Wang HJ, Lei YM, Zhang P, Liu JL, Chai YQ, Yuan R. Electrochemiluminescence biosensing based on different modes of switching signals. Analyst 2018; 143:3230-3248. [DOI: 10.1039/c8an00276b] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Electrochemiluminescence (ECL) has attracted much attention in various fields of analysis owing to low background signals, high sensitivity, and excellent controllability.
Collapse
Affiliation(s)
- Ying Zhuo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Hai-Jun Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yan-Mei Lei
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Pu Zhang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Jia-Li Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ya-Qin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| |
Collapse
|
31
|
Song H, Zhang L, Su Y, Lv Y. Recent Advances in Graphitic Carbon Nitride-Based Chemiluminescence, Cataluminescence and Electrochemiluminescence. JOURNAL OF ANALYSIS AND TESTING 2017. [DOI: 10.1007/s41664-017-0024-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
32
|
Xu H, Liang S, Zhu X, Wu X, Dong Y, Wu H, Zhang W, Chi Y. Enhanced electrogenerated chemiluminescence behavior of C 3N 4 QDs@ C 3N 4 nanosheet and its signal-on aptasensing for platelet derived growth factor. Biosens Bioelectron 2016; 92:695-701. [PMID: 27829561 DOI: 10.1016/j.bios.2016.10.026] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 10/10/2016] [Accepted: 10/13/2016] [Indexed: 01/27/2023]
Abstract
A novel g-C3N4 nanosheets embedded with C3N4 QDs nanocomposites (QD@CNNS) was prepared by simple oxidation using hydrogen peroxide and UV light irradiation. This nanocomposite exhibits more stable and stronger electrochemiluminescent (ECL) behavior compared with CNNS. Coupling this nanocomposite with Fc-labeled aptamer, a signal-on aptasensor for platelet derived growth factor BB (PDGF-BB) is fabricated. Initially, the Fc-labeled aptamer binds onto QD@CNNS via π-π conjugation and electrostatic interaction, quenching ECL emission from QD@CNNS. The introduction of target efficiently recovers the ECL signal by the formation of PDGF-BB/aptamer complex. The ECL intensity is proportion to the concentration of PDGF-BB in the range of 0.02-80nM with a detection limit of 0.013nM. This work demonstrates a simple synthesis method to obtain QD@CNNS with excellent ECL behavior, and opens up the application of g-C3N4 nanocomposite in signal-on aptasensing.
Collapse
Affiliation(s)
- Huifeng Xu
- MOE Key Laboratory of Analysis and Detection for Food Safety, State Key Laboratory of Photo catalysis on Energy and Environment, and College of Chemistry, Fuzhou University, Fujian 350108, PR China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, PR China
| | - Shijing Liang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China
| | - Xi Zhu
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, PR China
| | - Xiuqin Wu
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China
| | - Yongqiang Dong
- MOE Key Laboratory of Analysis and Detection for Food Safety, State Key Laboratory of Photo catalysis on Energy and Environment, and College of Chemistry, Fuzhou University, Fujian 350108, PR China
| | - Haishan Wu
- MOE Key Laboratory of Analysis and Detection for Food Safety, State Key Laboratory of Photo catalysis on Energy and Environment, and College of Chemistry, Fuzhou University, Fujian 350108, PR China
| | - Wenxia Zhang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, PR China
| | - Yuwu Chi
- MOE Key Laboratory of Analysis and Detection for Food Safety, State Key Laboratory of Photo catalysis on Energy and Environment, and College of Chemistry, Fuzhou University, Fujian 350108, PR China.
| |
Collapse
|
33
|
Zhu X, Kou F, Xu H, Yang G. A rapid and sensitive electrochemiluminescent sensor for nitrites based on C3N4 quantum dots on C3N4 nanosheets. RSC Adv 2016. [DOI: 10.1039/c6ra22527f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nitrite, an inorganic anion, is widely applied in various fields.
Collapse
Affiliation(s)
- Xi Zhu
- College of Life Sciences
- Fujian Agriculture and Forestry University
- Fuzhou
- P. R. China
| | - Fangxia Kou
- College of Life Sciences
- Fujian Agriculture and Forestry University
- Fuzhou
- P. R. China
| | - Huifeng Xu
- Academy of Integrative Medicine
- Fujian University of Traditional Chinese Medicine
- Fuzhou
- P. R. China
| | - Guidi Yang
- College of Life Sciences
- Fujian Agriculture and Forestry University
- Fuzhou
- P. R. China
| |
Collapse
|