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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.
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Affiliation(s)
- Yiming Liu
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China.
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Jaiswal A, Kumar A, Prakash R. Facile synthesis of doped C xN y QDs as photoluminescent matrix for direct detection of hydroquinone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:119019. [PMID: 33068899 DOI: 10.1016/j.saa.2020.119019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/21/2020] [Accepted: 09/26/2020] [Indexed: 06/11/2023]
Abstract
In this work, we are reporting facile hydrothermal synthesis of a highly photoluminescent doped carbon nitride quantum dots (CxNyQDs) and implied it for direct detection of hydroquinone (H2Q) by photoluminescence quenching phenomenon. Oxygen and sulphur moieties are regarded as dopant species in CxNyQDs and sourced from cheap solid precursors viz. cysteine and maleic acid. Morphological studies of CxNyQDs have done by SEM and TEM techniques, while structural analysis has carried out using FTIR, XPS, EDS and UV-Visible spectroscopy. The strong tendency of dispersivity of this QD in water has revealed by its zeta potential value of -32.4 mV. Optical properties of the as-prepared QDs have optimized at different excitation wavelengths. The photoluminescence stability of the dispersion is tested in various pH solutions and under continuous UV irradiation (365 nm). After that, sensing property is observed in quenching of photoluminescence feature of as-prepared QDs by direct addition of various concentrations of H2Q. We obtained lower detection limit (LOD) of 50 nM (S/N = 3) in linear range from 12 to 57.5 μM. The reduction in photoluminescence of QDs may be attributed to electron transfer from QDs to oxidized H2Q via -S- and -COO- groups present at its surface. Further, as-prepared QDs matrix exhibited high selectivity for hydroquinone over a range of potential interfering agents. Thus, the present work shows cost-effective facile synthesis of highly stable O- and S-doped carbon nitride (CxNy) quantum dots as promising photoluminescent sensor for pollutant hydroquinone without help of any enzyme or polymer assisted system.
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Affiliation(s)
- Aniruddha Jaiswal
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Ashish Kumar
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Rajiv Prakash
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India.
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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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Posha B, Asha N, Sandhyarani N. Carbon nitride quantum dots tethered on CNTs for the electrochemical detection of dopamine and uric acid. NEW J CHEM 2021. [DOI: 10.1039/d1nj00555c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 0D–1D CNQDs/f-CNT architecture composed of 0D CNQDs tethered on a 1D functionalized multiwalled carbon nanotube (f-CNT) network was used for dopamine sensing.
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Affiliation(s)
- Biyas Posha
- Nanoscience Research laboratory
- School of Materials Science and Engineering
- National Institute of Technology Calicut
- India
| | | | - N. Sandhyarani
- Nanoscience Research laboratory
- School of Materials Science and Engineering
- National Institute of Technology Calicut
- India
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55
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Lu S, Xue M, Tao A, Weng Y, Yao B, Weng W, Lin X. Facile Microwave-Assisted Synthesis of Functionalized Carbon Nitride Quantum Dots as Fluorescence Probe for Fast and Highly Selective Detection of 2,4,6-Trinitrophenol. J Fluoresc 2021; 31:1-9. [PMID: 33057853 DOI: 10.1007/s10895-020-02633-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 10/05/2020] [Indexed: 11/27/2022]
Abstract
Functionalized carbon nitride quantum dots (CNQDs) are fabricated by moderate carbonization of L-tartaric acid and urea in oil acid media by a facile microwave-assisted solvothermal method. The obtained CNQDs are monodispersed with a narrow size distribution (average size of 3.5 nm), and exhibit excellent selectivity and sensitivity of fluorescence quenching for 2,4,6-trinitrophenol (TNP) with a quenching efficiency coefficient Ksv of 4.75 × 104 M-1. This sensing system exhibits a fast response time within 1 min and a wide linear response range from 0.1 to 15 μM. The limit of detection is as low as 87 nM, which is comparable or lower than the other probes. The application of the developed probe to the detection of TNP in spiked water samples yields satisfactory results. The mechanism of fluorescence quenching is also discussed. Graphical Abstract An optical sensor based on functionalized carbon nitride quantum dots (CNQDs) were fabricated from L-tartaric acid and urea by a facile one-pot microwave-assisted solvothermal method, and were effectively utilized to the detection of 2,4,6-trinitrophenol (TNP) based on fluorescence (FL) quenching.
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Affiliation(s)
- Shikong Lu
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Meihua Xue
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Aojia Tao
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Yuhui Weng
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Bixia Yao
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Wen Weng
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China.
- Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Zhangzhou, 363000, China.
| | - Xiuchun Lin
- College of Environmental and Biological Engineering, Putian University, Putian, 351100, China
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Awad FS, AbouZied KM, Bakry AM, Abou El-Maaty WM, El-Wakil AM, El-Shall MS. Highly fluorescent hematoporphyrin modified graphene oxide for selective detection of copper ions in aqueous solutions. Anal Chim Acta 2020; 1140:111-121. [DOI: 10.1016/j.aca.2020.10.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 10/04/2020] [Accepted: 10/08/2020] [Indexed: 10/23/2022]
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57
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Gowri VM, John SA. Fabrication of electrically conducting graphitic carbon nitride film on glassy carbon electrode with the aid of amine groups for the determination of an organic pollutant. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114787] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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58
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Rohaizad N, Mayorga-Martinez CC, Fojtů M, Latiff NM, Pumera M. Two-dimensional materials in biomedical, biosensing and sensing applications. Chem Soc Rev 2020; 50:619-657. [PMID: 33206730 DOI: 10.1039/d0cs00150c] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Two-dimensional (2D) materials are at the forefront of materials research. Here we overview their applications beyond graphene, such as transition metal dichalcogenides, monoelemental Xenes (including phosphorene and bismuthene), carbon nitrides, boron nitrides along with transition metal carbides and nitrides (MXenes). We discuss their usage in various biomedical and environmental monitoring applications, from biosensors to therapeutic treatment agents, their toxicity and their utility in chemical sensing. We highlight how a specific chemical, physical and optical property of 2D materials can influence the performance of bio/sensing, improve drug delivery and photo/thermal therapy as well as affect their toxicity. Such properties are determined by crystal phases electrical conductivity, degree of exfoliation, surface functionalization, strong photoluminescence, strong optical absorption in the near-infrared range and high photothermal conversion efficiency. This review conveys the great future of all the families of 2D materials, especially with the expanding 2D materials' landscape as new materials emerge such as germanene and silicene.
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Affiliation(s)
- Nasuha Rohaizad
- NTU Institute for Health Technologies, Interdisciplinary Graduate School, Nanyang Technological University, Singapore
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59
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Gong L, Zhang X, Ge K, Yin Y, Machuki JO, Yang Y, Shi H, Geng D, Gao F. Carbon nitride-based nanocaptor: An intelligent nanosystem with metal ions chelating effect for enhanced magnetic targeting phototherapy of Alzheimer's disease. Biomaterials 2020; 267:120483. [PMID: 33129186 DOI: 10.1016/j.biomaterials.2020.120483] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/29/2020] [Accepted: 10/20/2020] [Indexed: 02/07/2023]
Abstract
Metal ions imbalance, a well-established pathologic feature of alzheimer's disease (AD), ultimately results in the deposition of amyloid-β peptide (Aβ) proteins and Aβ-induced neurotoxicity. Herein, to overcome these hurdles, an intelligent Aβ nanocaptor with the capacity to chelate metal ions and targeted therapy is developed by anchoring carbon nitride (C3N4) nanodots to Fe3O4@mesoporous silica nanospheres, and decorated with benzothiazole aniline (BTA) (designated as B-FeCN). The C3N4 nanodots could effectively capture superfluous Cu2+ to suppress the formation of Cu2+-Aβ complex thereby eliminating Aβ aggregation. Simultaneously, the nanocaptor enables local low-temperature hyperthermia to promote the dissolution of preformed fiber precipitates, therefore, maximizing the therapeutic benefits. Owing to its favorable photothermal effect, the blood-brain barrier (BBB) permeability of the nanocaptor is noticeably ameliorated upon laser illumination, which conquers the limitations associated with traditional anti-AD drugs, as evidenced by in vivo and in vitro studies. Besides, leveraging on the magnetic properties of Fe3O4 core, the nanocaptor is magnetized to access to the targeted Aβ regions under extrinsic magnetic field. BTA conjugation, which specifically binds to the β2 position of the Aβ fibers, executes specific targeting at Aβ plaques, and synchronously endows the BTA-modified nanocaptor with fluorescent imaging property for sensitively detecting Aβ aggregates. In view of these superiorities, nanocaptors combine metallostasis restoration and Aβ targeted therapy can surmount the interference of copper ions, enhance BBB permeability and protect cells against Aβ-induced neurotoxicity, which provides new avenues for developing neuroprotective nanosystems for the treatment of alzheimer's disease.
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Affiliation(s)
- Ling Gong
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Jiangsu, 221002, PR China; Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Jiangsu, 221002, PR China
| | - Xing Zhang
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, 52074, Germany
| | - Kezhen Ge
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Jiangsu, 221002, PR China; Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Jiangsu, 221002, PR China
| | - Yiming Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Jiangsu, 221002, PR China; Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Jiangsu, 221002, PR China
| | - Jeremiah Ong'achwa Machuki
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Jiangsu, 221002, PR China
| | - Yun Yang
- Nanomaterials and Chemistry Key Laboratory, Wenzhou University, Zhejiang, 325027, PR China
| | - Hengliang Shi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Jiangsu, 221002, PR China
| | - Deqin Geng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Jiangsu, 221002, PR China; Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Jiangsu, 221002, PR China.
| | - Fenglei Gao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Jiangsu, 221002, PR China.
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Ding L, Xu S, Huang D, Chen L, Kannan P, Guo L, Lin Z. Surface-enhanced electrochemiluminescence combined with resonance energy transfer for sensitive carcinoembryonic antigen detection in exhaled breath condensates. Analyst 2020; 145:6524-6531. [PMID: 32760976 DOI: 10.1039/d0an00864h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The detection of biomarkers in exhaled breath condensates (EBCs) is regarded as a promising non-invasive diagnostic approach. However, the ultralow concentration of biomarkers in EBCs is a great challenge. Herein, a sensitive dual signal amplification strategy was developed based on surface-enhanced electrochemiluminescence (SEECL) combined with resonance energy transfer (RET). Gold nanoparticles-functionalized graphite-like carbon nitride nanohybrids (Au-g-C3N4 NHs) could be used as an energy transfer donor because of the good overlap between its emission peak and the absorption peak of tris(2,2'-bipyridine)ruthenium dichloride (Ru(bpy)3Cl2) at 460 nm. Gold-silicon dioxide core-shell nanoparticles doped with Ru(bpy)32+(Au@SiO2-Ru) were employed as an energy transfer acceptor emitting at 620 nm. Moreover, the signals at 620 nm emitted by Ru (bpy)32+ were enhanced by 5 times, attributed to the localized surface plasmon resonance (LSPR) of gold nanoparticles (Au NPs). The detection of carcinoembryonic antigen (CEA) was performed by using two aptamers as the recognition unit; whereby aptamer 1 (Apt1) was modified on the surface of Au-g-C3N4 NHs, and aptamer 2 (Apt2) was banded on the surface of Au@SiO2-Ru. In the presence of CEA, a sandwich structure was formed between Au-g-C3N4 NHs-Apt1-CEA and Apt2-Au@SiO2-Ru, which resulted in an ultrasensitive detection of CEA. The proposed electrochemiluminescence sensor showed a wide linear relationship with the CEA concentration in the range from 1.0 pg mL-1 to 5.0 ng mL-1, with a limit of detection (LOD) of 0.3 pg mL-1. Finally, the practicality of the proposed sensor was demonstrated to detect CEA in EBCs, and the obtained results were in good agreement with the enzyme-linked immunosorbent assay (ELISA) method.
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Affiliation(s)
- Li Ding
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian Province 350116, China.
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61
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Guo J, Ye S, Li H, Song J, Qu J. Novel fluorescence probe based on bright emitted carbon dots for ClO - detection in real water samples and living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118592. [PMID: 32615499 DOI: 10.1016/j.saa.2020.118592] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
Low-toxic and environmentally friendly carbon dots (CDs) have been extensively applied in various fields. CDs usually demonstrate excellent selectivity and high sensitivity, especially in ion detection. However, the most commonly used CDs are excited by ultraviolet (UV) light and emit weak fluorescence light, limiting their application in some fields. Herein, novel fluorine and nitrogen codoped carbon dots (FNCDs) were prepared by a simple hydrothermal method and used as a fluorescent probe for ion detection. The FNCDs were excited by blue light and emitted strong green fluorescence, and the photoluminescence quantum yield was as high as 56.7%. The fluorescence of the FNCDs could be rapidly quenched by ClO- ions, indicating their potential application for ClO- detection. The fluorescence of the FNCDs was quenched by ClO- ions in less than 1 min, and the intensity of the fluorescence decreased linearly as the ClO- concentration increased from 0 to 20 μM. The detection limit was calculated to be as low as 8.2 nM, indicating high sensitivity of the FNCDs probe. The quench effect of the ClO- ions on the FNCDs probe fluorescence was not affected by other ions, demonstrating excellent selectivity of the FNCDs probe. Because of their excellent biological compatibility, the FNCDs were also successfully used to identify exogenous ClO- in living cells. These FNCDs have promising prospects as novel sensitive and inexpensive probes for the detection of pollutants and in the pathological studies of clinical diseases.
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Affiliation(s)
- Jiaqing Guo
- Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen 518060, PR China
| | - Shuai Ye
- Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen 518060, PR China.
| | - Hao Li
- Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen 518060, PR China
| | - Jun Song
- Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen 518060, PR China
| | - Junle Qu
- Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen 518060, PR China
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62
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Zhang Z, Gao Y, Li P, Qu B, Mu Z, Liu Y, Qu Y, Kong D, Chang Q, Jing L. Highly sensitive fluorescence detection of chloride ion in aqueous solution with Ag-modified porous g-C3N4 nanosheets. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.05.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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63
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Li TT, Mei Y, Li H, Qian J, Wu M, Zheng YQ. Highly Selective and Active Electrochemical Reduction of CO2 to CO on a Polymeric Co(II) Phthalocyanine@Graphitic Carbon Nitride Nanosheet–Carbon Nanotube Composite. Inorg Chem 2020; 59:14184-14192. [DOI: 10.1021/acs.inorgchem.0c01977] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ting-Ting Li
- Chemistry Institute for Synthesis and Green Application, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Yan Mei
- Chemistry Institute for Synthesis and Green Application, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Hongwei Li
- Chemistry Institute for Synthesis and Green Application, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Jinjie Qian
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325000, China
| | - Miao Wu
- Chemistry Institute for Synthesis and Green Application, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Yue-Qing Zheng
- Chemistry Institute for Synthesis and Green Application, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
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64
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Carbon dot/carbon nitride composites fluorescent probe for the highly selective detection of Cr(VI) ions. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112711] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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65
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A new approach for electrochemical detection of organochlorine compound lindane: Development of molecular imprinting polymer with polyoxometalate/carbon nitride nanotubes composite and validation. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105012] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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66
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Muhmood T, Uddin A. Fabrication of spherical-graphitic carbon nitride via hydrothermal method for enhanced photo-degradation ability towards antibiotic. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137604] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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67
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A regenerative photoelectrochemical sensor based on functional porous carbon nitride for Cu2+ detection. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104922] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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68
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Song Z, Xu YT, Guo L. Phenyl doped graphitic carbon nitride nanosheets for sensing of copper ions in living cells. Analyst 2020; 145:4260-4264. [PMID: 32494796 DOI: 10.1039/d0an00795a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper (Cu) is a vital metal element for humans and animals. Monitoring and evaluating the concentration level of Cu2+ in a biological body is an effective way to prevent a variety of diseases. In this work, phenyl doped graphitic carbon nitride (PDCN) nanosheets with strong green fluorescence exhibited a sensitive and selective detection for Cu2+ with a linear range from 0.1-2.0 μmol L-1. Furthermore, fluorescent imaging was applied to semiquantitatively detect Cu2+ in HeLa cells using PDCN nanosheets as the probe, which can avoid the interference of background autofluorescence. This work provided a low-cost and biologically friendly fluorescent probe to monitor the concentration level of Cu2+ in living cells.
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Affiliation(s)
- Zhiping Song
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, and College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Yuan-Teng Xu
- Department of Otorhinolaryngology, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China.
| | - Liangqia Guo
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, and College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
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69
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Rosette-shaped graphitic carbon nitride acts as a peroxidase mimic in a wide pH range for fluorescence-based determination of glucose with glucose oxidase. Mikrochim Acta 2020; 187:286. [PMID: 32328802 DOI: 10.1007/s00604-020-04249-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 03/30/2020] [Indexed: 12/21/2022]
Abstract
Rosette-shaped graphitic carbon nitride (rosette-GCN) is described as a promising alternative to natural peroxidase for its application to fluorescence-based glucose assays. Rosette-GCN was synthesized via a rapid reaction between melamine and cyanuric acid for 10 min at 35 °C, followed by thermal calcination for 4 h. Importantly, rosette-GCN possesses a peroxidase-like activity, producing intense fluorescence from the oxidation of Amplex UltraRed in the presence of H2O2 over a broad pH-range of, including neutral pH; the peroxidase activity of rosette-GCN was ~ 10-fold higher than that of conventional bulk-GCN. This enhancement of peroxidase activity is presumed to occur because rosette-GCN has a significantly larger surface area and higher porosity while preserving its unique graphitic structure. Based on the high peroxidase activity of rosette-GCN along with the catalytic action of glucose oxidase (GOx), glucose was reliably determined down to 1.2 μM with a dynamic linear concentration range of 5.0 to 275.0 μM under neutral pH conditions. Practical utility of this strategy was also successfully demonstrated by determining the glucose levels in serum samples. This work highlights the advantages of GCNs synthesized via rapid methods but with unique structures for the preparation of enzyme-mimicking catalysts, thus extending their applications to the diagnostics field and other biotechnological fields. Graphical abstract.
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70
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Ninwong B, Sangkaew P, Hapa P, Ratnarathorn N, Menger RF, Henry CS, Dungchai W. Sensitive distance-based paper-based quantification of mercury ions using carbon nanodots and heating-based preconcentration. RSC Adv 2020; 10:9884-9893. [PMID: 35498601 PMCID: PMC9050213 DOI: 10.1039/d0ra00791a] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 02/26/2020] [Indexed: 12/31/2022] Open
Abstract
This article reports the first fluorescent distance-based paper device coupled with an evaporating preconcentration system for determining trace mercury ions (Hg2+) in water. The fluorescent nitrogen-doped carbon dots (NCDs) were synthesized by a one-step microwave method using citric acid and ethylenediamine. The fluorescence turn-off of the NCDs in the presence of Hg2+ was visualized with a common black light, and the distance of the quenched fluorescence correlated to Hg2+ concentration. The optimal conditions for pH, NCD concentration, sample volume, and reaction time were investigated. Heating preconcentration was used to improve the detection limits of the fluorescent distance-based paper device by a factor of 100. Under the optimal conditions, the naked eye limit of detection (LOD) was 5 μg L-1 Hg2+. This LOD is sufficient for monitoring drinking water where the maximum allowable mercury level is 6 μg L-1 as established by the World Health Organization (WHO). The fluorescent distance-based paper device was successfully applied for Hg2+ quantification in water samples without interference from other cations. The proposed method provides several advantages over atomic absorption spectroscopy including ease of use, inexpensive material and fabrication, and portability. In addition, the devices are simple to fabricate and have a long shelf-life (>5 months).
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Affiliation(s)
- Benjawan Ninwong
- Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi Prachautid Road, Thungkru Bangkok 10140 Thailand +66-2-470-8840 +66-2-470-9553
- Nanomaterials Chemistry Research Unit, Department of Chemistry, Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University Nakhon Si Thammarat 80280 Thailand
| | - Prapaporn Sangkaew
- Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi Prachautid Road, Thungkru Bangkok 10140 Thailand +66-2-470-8840 +66-2-470-9553
| | - Photcharapan Hapa
- Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi Prachautid Road, Thungkru Bangkok 10140 Thailand +66-2-470-8840 +66-2-470-9553
| | - Nalin Ratnarathorn
- Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi Prachautid Road, Thungkru Bangkok 10140 Thailand +66-2-470-8840 +66-2-470-9553
| | - Ruth F Menger
- Departments of Chemistry and Chemical & Biological Engineering, Colorado State University Fort Collins CO 80523 USA
| | - Charles S Henry
- Departments of Chemistry and Chemical & Biological Engineering, Colorado State University Fort Collins CO 80523 USA
| | - Wijitar Dungchai
- Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi Prachautid Road, Thungkru Bangkok 10140 Thailand +66-2-470-8840 +66-2-470-9553
- Applied Science & Engineering for Social Solution Unit, Faculty of Science, King Mongkut's University of Technology Thonburi Prachautid Road, Thungkru Bangkok 10140 Thailand
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71
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Sheng W, Li W, Tan D, Zhang P, Zhang E, Sheremet E, Schmidt BV, Feng X, Rodriguez RD, Jordan R, Amin I. Polymer Brushes on Graphitic Carbon Nitride for Patterning and as a SERS Active Sensing Layer via Incorporated Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2020; 12:9797-9805. [PMID: 31999093 PMCID: PMC7050013 DOI: 10.1021/acsami.9b21984] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/30/2020] [Indexed: 05/27/2023]
Abstract
Graphitic carbon nitride (gCN) has a broad range of promising applications, from energy harvesting and storage to sensing. However, most of the applications are still restricted due to gCN poor dispersibility and limited functional groups. Herein, a direct photografting of gCN using various polymer brushes with tailorable functionalities via UV photopolymerization at ambient conditions is demonstrated. The systematic study of polymer brush-functionalized gCN reveals that the polymerization did not alter the inherent structure of gCN. Compared to the pristine gCN, the gCN-polymer composites show good dispersibility in various solvents such as water, ethanol, and tetrahydrofuran (THF). Patterned polymer brushes on gCN can be realized by employing photomask and microcontact printing technology. The polymer brushes with incorporated silver nanoparticles (AgNPs) on gCN can act as a multifunctional recyclable active sensing layer for surface-enhanced Raman spectroscopy (SERS) detection and photocatalysis. This multifunctionality is shown in consecutive cycles of SERS and photocatalytic degradation processes that can be applied to in situ monitor pollutants, such as dyes or pharmaceutical waste, with high chemical sensitivity as well as to water remediation. This dual functionality provides a significant advantage to our AgNPs/polymer-gCN with regard to state-of-the-art systems reported so far that only allow SERS pollutant detection but not their decomposition. These results may provide a new methodology for the covalent functionalization of gCN and may enable new applications in the field of catalysis, biosensors, and, most interestingly, environmental remediation.
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Affiliation(s)
- Wenbo Sheng
- Chair of Macromolecular
Chemistry, Faculty of Chemistry and Food Chemistry, School of Science, Technische Universität Dresden, Mommsenstr. 4, 01069 Dresden, Germany
- Leibniz Institute of Polymer Research Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Wei Li
- Chair of Macromolecular
Chemistry, Faculty of Chemistry and Food Chemistry, School of Science, Technische Universität Dresden, Mommsenstr. 4, 01069 Dresden, Germany
| | - Deming Tan
- Department of Inorganic
Chemistry, Technische Universität
Dresden, 01069 Dresden, Germany
| | - Panpan Zhang
- Chair of Molecular
Functional Materials, Faculty of Chemistry and Food Chemistry, School
of Science, Technische Universität
Dresden, Mommsenstr.
4, 01069 Dresden, Germany
| | - En Zhang
- Department of Inorganic
Chemistry, Technische Universität
Dresden, 01069 Dresden, Germany
| | - Evgeniya Sheremet
- Research School of Physics, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | | | - Xinliang Feng
- Chair of Molecular
Functional Materials, Faculty of Chemistry and Food Chemistry, School
of Science, Technische Universität
Dresden, Mommsenstr.
4, 01069 Dresden, Germany
| | - Raul D. Rodriguez
- Research School of Chemistry and Applied
Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Rainer Jordan
- Chair of Macromolecular
Chemistry, Faculty of Chemistry and Food Chemistry, School of Science, Technische Universität Dresden, Mommsenstr. 4, 01069 Dresden, Germany
| | - Ihsan Amin
- Chair of Macromolecular
Chemistry, Faculty of Chemistry and Food Chemistry, School of Science, Technische Universität Dresden, Mommsenstr. 4, 01069 Dresden, Germany
- Van’t Hoff Institute of Molecular Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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72
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Mei H, Shu H, Lv M, Liu W, Wang X. Fluorescent assay based on phenyl-modified g-C 3N 4 nanosheets for determination of thiram. Mikrochim Acta 2020; 187:159. [PMID: 32036451 DOI: 10.1007/s00604-020-4135-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 01/23/2020] [Indexed: 11/30/2022]
Abstract
Phenyl-modified graphitic carbon nitride nanosheets (Ph-g-C3N4 NSs) were synthesized by a thermal copolymerization and ultrasonic exfoliation method. The Ph-g-C3N4 NSs are used as a fluorescent assay for determination of thiram. The results of X-ray photoelectron spectroscopy, 13C solid-state nuclear magnetic resonance and Fourier transform infrared spectra confirm that phenyl group is integrated into the heptazine network of g-C3N4. Compared to the g-C3N4 NSs, the Ph-g-C3N4 NSs show bigger stokes shift about 185 nm and higher fluorescence intensity. The fluorescence of Ph-g-C3N4 NSs is quenched by Cu2+ via the photo-induced electron transfer mechanism, which then recovers in the presence of thiram. The fluorescence restoring of Ph-g-C3N4 NSs is correlated with the concentration of thiram. Under the optimized conditions, the fluorescent intensity of g-C3N4 NSs at excitation/emission wavelengths of 310/455 nm give a linear range of 33.0-670 nM with detection limit of 9.90 nM. While fluorescent assay based on the Ph-g-C3N4 NSs show the linear range of 6.70-1300 nM at excitation/emission wavelengths of 310/495 nm with detection limit of 2.01 nM. Graphical abstract Schematic representation of fluorescent "on-off-on" assay based on phenyl-modified graphitic carbon nitride nanosheets (Ph-g-C3N4 NSs) for determination of thiram.
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Affiliation(s)
- He Mei
- Health Assessment Center, Zhejiang Provincial Key Laboratory of Watershed Science and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Huawei Shu
- Health Assessment Center, Zhejiang Provincial Key Laboratory of Watershed Science and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,State Key Laboratory of Ophthalmology, Optometry and Vision Science, School of Ophthalmology and Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China.,Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325001, People's Republic of China
| | - Mengyu Lv
- Health Assessment Center, Zhejiang Provincial Key Laboratory of Watershed Science and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Wei Liu
- Health Assessment Center, Zhejiang Provincial Key Laboratory of Watershed Science and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.
| | - Xuedong Wang
- Health Assessment Center, Zhejiang Provincial Key Laboratory of Watershed Science and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China. .,National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China.
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73
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Huang B, Liu XP, Chen JS, Mao CJ, Niu HL, Jin BK. Electrochemiluminescence immunoassay for the prostate-specific antigen by using a CdS/chitosan/g-C3N4 nanocomposite. Mikrochim Acta 2020; 187:155. [DOI: 10.1007/s00604-020-4125-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 01/17/2020] [Indexed: 02/06/2023]
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74
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Turn-On fluorescence sensor based detection of heavy metal ion using carbon dots@graphitic-carbon nitride nanocomposite probe. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112204] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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75
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Fan Q, Li J, Zhu Y, Yang Z, Shen T, Guo Y, Wang L, Mei T, Wang J, Wang X. Functional Carbon Quantum Dots for Highly Sensitive Graphene Transistors for Cu 2+ Ion Detection. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4797-4803. [PMID: 31909585 DOI: 10.1021/acsami.9b20785] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Cu2+ ions play essential roles in various biological events that occur in the human body. It is important to establish an efficient and reliable detection of Cu2+ ions for people's health. The solution-gated graphene transistors (SGGTs) have been extensively investigated as a promising platform for chemical and biological sensing applications. Herein, highly sensitive and highly selective sensor for Cu2+ ion detection is successfully constructed based on SGGTs with gate electrodes modified by functional carbon quantum dots (CQDs). The sensing mechanism of the sensor is that the coordination of CQDs and Cu2+ ions induces the capacitance change of the electrical double layer (EDL) near the gate electrode and then results in the change of channel current. Compared to other metal ions, Cu2+ ions have an excellent binding nature with CQDs that make it an ultrahigh selective sensor. The CQD-modified sensor achieves excellent Cu2+ ion detection with a minimal level of concentration (1 × 10-14 M), which is several orders of magnitude lower than the values obtained from other conventional detection methods. Interestingly, the device also displays a quick response time on the order of seconds. Due to the functionalized nature of CQDs, SGGTs with CQD-modified gate show good prospects to achieve multifunctional sensing platform in biochemical detections.
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Affiliation(s)
- Qin Fan
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering , Hubei University , Wuhan 430062 , China
| | - Jinhua Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering , Hubei University , Wuhan 430062 , China
| | - Yuhua Zhu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering , Hubei University , Wuhan 430062 , China
| | - Zilu Yang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering , Hubei University , Wuhan 430062 , China
| | - Tao Shen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering , Hubei University , Wuhan 430062 , China
| | - Yizhong Guo
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Lihua Wang
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Tao Mei
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering , Hubei University , Wuhan 430062 , China
| | - Jianying Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering , Hubei University , Wuhan 430062 , China
| | - Xianbao Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering , Hubei University , Wuhan 430062 , China
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76
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Peng Y, Yu X, Yin W, Dong W, Peng J, Wang T. Colorimetric Assay Using Mesoporous Fe-Doped Graphitic Carbon Nitride as a Peroxidase Mimetic for the Determination of Hydrogen Peroxide and Glucose. ACS APPLIED BIO MATERIALS 2020; 3:59-67. [PMID: 35019427 DOI: 10.1021/acsabm.9b00883] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Iron can enter the electron-rich cavities of graphitic carbon nitride (g-C3N4). On account of this phenomenon, Fe-doped g-C3N4 (Fe-g-C3N4) was prepared as a peroxidase mimetic by using one-step pyrolysis of urea and FeCl3·6H2O. Compared to g-C3N4, Fe-g-C3N4 has a large specific surface area due to the presence of mesopores and cracks, a smaller band gap, and a high loading of Fe in its structure. Thus, Fe-g-C3N4 exhibits greater peroxidase activity with a more obvious color change when using 3,3',5,5'-tetramethylbenzidine (TMB) as a substrate in the presence of hydrogen peroxide (H2O2). The color of a mixture of TMB and Fe-g-C3N4 gradually deepens with increasing concentrations of H2O2. Accordingly, a rapid, sensitive, and low-cost colorimetric assay for the detection of H2O2 was developed. After optimization, this method boasts a wide linear dynamic range for H2O2 detection from 0.005 to 400 μM (r2 = 0.9971) with a detection limit of 0.005 μM. Because H2O2 is a main product of glucose oxidation by glucose oxidase (GOx), a colorimetric assay for glucose detection was also realized, with a linear dynamic range of 1-1000 μM (r2 = 0.9996) and a detection limit of 0.5 μM. These assays were applied to the quantitative detection of H2O2 in milk and glucose in human serum, respectively.
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Affiliation(s)
- Yage Peng
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Xueping Yu
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Wenqing Yin
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Wenfei Dong
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Juan Peng
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.,Key Laboratory of Materials Processing and Mold, Ministry of Education, Zhengzhou University, Zhengzhou 45000, P. R. China
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77
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Ghashghaee M, Azizi Z, Ghambarian M. Adsorption of iron(II, III) cations on pristine heptazine and triazine polymeric carbon nitride quantum dots of buckled and planar structures: theoretical insights. ADSORPTION 2020. [DOI: 10.1007/s10450-019-00197-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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78
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Wu S, Min H, Shi W, Cheng P. Multicenter Metal-Organic Framework-Based Ratiometric Fluorescent Sensors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1805871. [PMID: 30790371 DOI: 10.1002/adma.201805871] [Citation(s) in RCA: 300] [Impact Index Per Article: 75.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/15/2019] [Indexed: 05/18/2023]
Abstract
Metal-organic frameworks (MOFs) with multiple emission centers are newly emerging as ratiometric sensors owing to their high sensitivity and high selectivity toward a wide range of targeted functional species. Energy transfer between the light-absorbing group and emission centers and between different emission centers is the key to rationally design and synthesize MOF-based ratiometric sensors. A good match between the energy levels of the light-absorbing groups and emission centers is the prerequisite for MOF-based sensors to exhibit multiple emissions, and a good match of the MOF-based sensors and those of the targeted species can increase the sensitivity and selectivity, but this match is highly challenging to obtain via synthesis. MOFs with multiple emission centers can be produced by functionalizing MOFs with multiple lanthanide centers, organic luminophores, dyes, carbon dots, and other such emissive groups. In this progress report, recent advances in the strategies for synthesizing MOFs with multiple emission centers and their applications for ratiometric sensing of solution conditions, including the pH value, and ion, organic molecule, and biomolecule concentrations, are summarized, as are the related sensing mechanisms.
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Affiliation(s)
- Shuangyan Wu
- Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Hui Min
- Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Wei Shi
- Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Peng Cheng
- Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin, 300071, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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79
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Mondal TK, Saha SK. Interesting photoluminescence behaviour in graphitic carbon nitride quantum dots attached to PbCrO4 colloidal nanostructures. NEW J CHEM 2020. [DOI: 10.1039/d0nj03609a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly luminescent graphitic carbon nitride quantum dots (CNQDs) are synthesized by a facile one-step hydrothermal route and studied the photoluminescence behaviour during in situ formation of CNQD–PbCrO4 nano-composite.
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Affiliation(s)
- Tapas Kumar Mondal
- School of Materials Sciences
- Indian Association for the Cultivation of Science Jadavpur
- Kolkata
- India
| | - Shyamal K. Saha
- School of Materials Sciences
- Indian Association for the Cultivation of Science Jadavpur
- Kolkata
- India
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80
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Tian J, Chen K, Wang H, Liu W, Wang X. Determination of a thiol-based ionic liquid using ultrathin graphitic carbon nitride nanosheets as a nanofluoroprobe. Talanta 2020; 207:120291. [DOI: 10.1016/j.talanta.2019.120291] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 08/01/2019] [Accepted: 08/20/2019] [Indexed: 01/20/2023]
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81
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Zarei M. Sensitive visible light-driven photoelectrochemical aptasensor for detection of tetracycline using ZrO2/g-C3N4 nanocomposite. SENSORS INTERNATIONAL 2020. [DOI: 10.1016/j.sintl.2020.100029] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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82
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Zhang L, Xue J, Gao C, Xu M, Zhao P, Ge S, Yu J. Ultrasensitive photoelectrochemical sensor enabled by a target-induced signal quencher release strategy. NEW J CHEM 2020. [DOI: 10.1039/d0nj01435d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this work, a target-induced signal quencher release strategy was proposed to construct a sensitive photoelectrochemical (PEC) sensor.
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Affiliation(s)
- Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan
- P. R. China
| | - Jie Xue
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Chaomin Gao
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Meiling Xu
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan
- P. R. China
| | - Peini Zhao
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Shenguang Ge
- Institute for Advanced Interdisciplinary Research
- University of Jinan
- Jinan 250022
- China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- P. R. China
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83
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Ma X, Qian K, Kandawa‐Schulz M, Miao W, Wang Y. Direct Determination of Cu
2+
Based on the Electrochemical Catalytic Reaction of Fe
3+
/Cu
2+. ELECTROANAL 2019. [DOI: 10.1002/elan.201900587] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xiangyu Ma
- School of Chemistry and Chemical EngineeringSoutheast University Nanjing 211189 PR China
| | - Kun Qian
- School of Chemistry and Chemical EngineeringSoutheast University Nanjing 211189 PR China
| | | | - Weimin Miao
- Jiangsu Meizhong Medical Technology Co., Ltd. Nantong China
| | - Yihong Wang
- School of Chemistry and Chemical EngineeringSoutheast University Nanjing 211189 PR China
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84
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Mohammadi L, Heravi MM, Sadjadi S, Malmir M. Hybrid of Graphitic Carbon Nitride and Palladated Magnetic Carbon Dot: An Efficient Catalyst for Coupling Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201903078] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Leila Mohammadi
- Department of ChemistrySchool of ScienceAlzahra University PO Box 1993891176 Vanak, Tehran Iran
| | - Majid M. Heravi
- Department of ChemistrySchool of ScienceAlzahra University PO Box 1993891176 Vanak, Tehran Iran
| | - Samahe Sadjadi
- Gas Conversion Department, Faculty of PetrochemicalsIran Polymer and Petrochemicals Institute PO Box 14975–112 Tehran Iran
| | - Masoumeh Malmir
- Department of ChemistrySchool of ScienceAlzahra University PO Box 1993891176 Vanak, Tehran Iran
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85
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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]
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86
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Peng H, Newbigging AM, Reid MS, Uppal JS, Xu J, Zhang H, Le XC. Signal Amplification in Living Cells: A Review of microRNA Detection and Imaging. Anal Chem 2019; 92:292-308. [DOI: 10.1021/acs.analchem.9b04752] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hanyong Peng
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical
Sciences Building, Edmonton, Alberta T6G 2G3, Canada
| | - Ashley M. Newbigging
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical
Sciences Building, Edmonton, Alberta T6G 2G3, Canada
| | - Michael S. Reid
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical
Sciences Building, Edmonton, Alberta T6G 2G3, Canada
| | - Jagdeesh S. Uppal
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical
Sciences Building, Edmonton, Alberta T6G 2G3, Canada
| | - Jingyang Xu
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical
Sciences Building, Edmonton, Alberta T6G 2G3, Canada
| | - Hongquan Zhang
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical
Sciences Building, Edmonton, Alberta T6G 2G3, Canada
| | - X. Chris Le
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical
Sciences Building, Edmonton, Alberta T6G 2G3, Canada
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87
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Yan F, Sun X, Zhang R, Jiang Y, Xu J, Wei J. Enhanced fluorescence probes based on Schiff base for recognizing Cu 2+ and effect of different substituents on spectra. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117222. [PMID: 31174152 DOI: 10.1016/j.saa.2019.117222] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/24/2019] [Accepted: 05/28/2019] [Indexed: 06/09/2023]
Abstract
Three enhanced fluorescence probes based on Rhodamine B-Schiff base structure were synthesized for detecting Cu2+. The corresponding detection limits were found to be 0.25 μM, 0.15 μM and 0.18 μM. Binding ratio and binding sites were determined by Job's and nuclear magnetic titration experiments. The binding constants obtained by the Benesi-Hildebrand equation to be 341.0 M-0.5,1.8 × 104 M-1, and 265.4 M-0.5, respectively. As isomers, the different effects of probes on Cu2+ detection were researched. By adjusting the position and the size of the substituent group, the effects of binding sites and steric hindrance on the complexation ratio, response time and detection limit were discussed. Optimal spatial combination structure with Cu2+ was obtained through energy calculation. Detection mechanism of Rhodamine B ring opening based on the complex of the Schiff base with Cu2+ was confirmed. E. coli staining and detection of real water samples had expanded their applications.
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Affiliation(s)
- Fanyong Yan
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China.
| | - Xiaodong Sun
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Ruiqi Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Yingxia Jiang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Jinxia Xu
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Junfu Wei
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China.
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88
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One-step and green strategy for exfoliation and stabilization of graphene by phosphate pillar[6]arene and its application for fluorescence sensing of paraquat. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104203] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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89
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Duan J, Zhao L, Lv W, Li Y, Zhang Y, Ai S, Zhu L. Facile synthesis of g-C3N4/Fe3O4 nanocomposites for fluorescent detection and removal of Cr(VI). Microchem J 2019. [DOI: 10.1016/j.microc.2019.104105] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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90
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Wang N, Li X, Yang X, Tian Z, Bian W, Jia W. Nitrogen-doped carbon dots as a probe for the detection of Cu2+ and its cellular imaging. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819875046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nitrogen-doped carbon dots were synthesized using citric acid monohydrate and glutathione as raw materials. The synthesized nitrogen-doped carbon dots were characterized by multiple analytical techniques, including transmission electron microscopy, Fourier transform infrared spectroscopy, ultraviolet–visible absorption spectroscopy, X-ray photoelectron spectroscopy, X-ray diffractometry, and fluorescence spectra. The fluorescence intensity of the nitrogen-doped carbon dots gradually quenched with different concentrations of Cu2+ ions. The effect of the pH value, the nitrogen-doped carbon dot concentration, and the reaction time on the fluorescence intensity of the N-CDs-Cu2+ system was investigated, and the experimental conditions were optimized. A rapid and sensitive method for the determination of Cu2+ ions was established that exhibited a good linearity in the concentration range 0.20–200.0 μM with a detection limit of 0.27 nM. Meanwhile, the fluorescence quenching mechanism of the interaction between nitrogen-doped carbon dots and Cu2+ was preliminarily discussed. The method was used to detect trace Cu2+ in tap water and lake water, with recoveries ranging from 98.1% to 102.0%. Furthermore, due to low cytotoxicity and good biocompatibility, nitrogen-doped carbon dots as a probe were also successfully used in bioimaging.
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Affiliation(s)
- Ning Wang
- Shanxi Medical University, Taiyuan, P.R. China
| | - Xuebing Li
- Shanxi Medical University, Taiyuan, P.R. China
| | | | - Zenglian Tian
- Sixth Hospital of Shanxi Medical University (General Hospital of Tisco), Taiyuan, P.R. China
| | - Wei Bian
- Shanxi Medical University, Taiyuan, P.R. China
| | - Weihua Jia
- Sixth Hospital of Shanxi Medical University (General Hospital of Tisco), Taiyuan, P.R. China
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91
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Liu Q, Zhu D, Guo M, Yu Y, Cao Y. Facile and efficient fabrication of g-C3N4 quantum dots for fluorescent analysis of trace copper(II) in environmental samples. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.05.058] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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92
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Chouhan RS, Žitko G, Fajon V, Živković I, Pavlin M, Berisha S, Jerman I, Vesel A, Horvat M. A Unique Interactive Nanostructure Knitting based Passive Sampler Adsorbent for Monitoring of Hg 2+ in Water. SENSORS 2019; 19:s19153432. [PMID: 31387298 PMCID: PMC6696128 DOI: 10.3390/s19153432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 01/17/2023]
Abstract
This work reports the development of ultralight interwoven ultrathin graphitic carbon nitride (g-CN) nanosheets for use as a potential adsorbent in a passive sampler (PAS) designed to bind Hg2+ ions. The g-CN nanosheets were prepared from bulk g-CN synthesised via a modified high-temperature short-time (HTST) polycondensation process. The crystal structure, surface functional groups, and morphology of the g-CN nanosheets were characterised using a battery of instruments. The results confirmed that the as-synthesized product is composed of few-layered nanosheets. The adsorption efficiency of g-CN for binding Hg2+ (100 ng mL−1) in sea, river, rain, and Milli-Q quality water was 89%, 93%, 97%, and 100%, respectively, at natural pH. Interference studies found that the cations tested (Co2+, Ca2+, Zn2+, Fe2+, Mn2+, Ni2+, Bi3+, Na+, and K+) had no significant effect on the adsorption efficiency of Hg2+. Different parameters were optimised to improve the performance of g-CN such as pH, contact time, and amount of adsorbent. Optimum conditions were pH 7, 120 min incubation time and 10 mg of nanosheets. The yield of nanosheets was 72.5%, which is higher compared to other polycondensation processes using different monomers. The g-CN sheets could also be regenerated up to eight times with only a 20% loss in binding efficiency. Overall, nano-knitted g-CN is a promising low-cost green adsorbent for use in passive samplers or as a transducing material in sensor applications.
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Affiliation(s)
- Raghuraj S Chouhan
- Institute "Jožef Stefan", Department of Environmental Sciences, Jamova 39, 1000 Ljubljana, Slovenia.
| | - Gregor Žitko
- Institute "Jožef Stefan", Department of Surface Engineering, Jamova 39, 1000 Ljubljana, Slovenia
| | - Vesna Fajon
- Institute "Jožef Stefan", Department of Environmental Sciences, Jamova 39, 1000 Ljubljana, Slovenia
| | - Igor Živković
- Institute "Jožef Stefan", Department of Environmental Sciences, Jamova 39, 1000 Ljubljana, Slovenia
| | - Majda Pavlin
- Institute "Jožef Stefan", Department of Environmental Sciences, Jamova 39, 1000 Ljubljana, Slovenia
| | | | - Ivan Jerman
- Institute "Jožef Stefan", Department of Surface Engineering, Jamova 39, 1000 Ljubljana, Slovenia
| | | | - Milena Horvat
- Institute "Jožef Stefan", Department of Environmental Sciences, Jamova 39, 1000 Ljubljana, Slovenia
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93
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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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94
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Lin YS, Lin Y, Periasamy AP, Cang J, Chang HT. Parameters affecting the synthesis of carbon dots for quantitation of copper ions. NANOSCALE ADVANCES 2019; 1:2553-2561. [PMID: 36132712 PMCID: PMC9419006 DOI: 10.1039/c9na00137a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/10/2019] [Indexed: 05/20/2023]
Abstract
A simple, eco-friendly, and low-cost electrochemical approach has been applied to the synthesis of carbon dots (C dots) from histidine hydrochloride in the absence or presence of halides (Cl, Br, and I) at various potentials up to 10 V. The as-formed C dots refer to C dots, Cl-C, Br-C, and I-C dots. The time-evolution UV-vis absorption and photoluminescence (PL) spectra provide more detailed information about the formation of C dots. Upon increasing the reaction time from 1 to 120 min, more and more C dots are formed, leading to increased PL intensity. The halides play two important roles in determining the formation of C dots; controlling the reaction rate and surface states. When compared to chloride and bromide, iodide has a greater effect on varying surface states and inducing PL quenching through intersystem crossing. The PL intensities of the four types of C dots all decrease upon increasing Cu2+, Hg2+, and Ag+ concentrations. In the presence of 0.8 mM I-, I-C dots compared to C dots, Cl-C dots, and Br-C dots are slightly better for quantitation of Cu2+. Fourier transform infrared spectroscopy, cyclic voltammetry, electrochemical impedance spectroscopy, and X-ray photoelectron spectroscopy results of I-C dots reveal the interactions of Cu2+ with the surface ligands (imidazole and histidine). The I-C dot probe in the presence of 0.8 mM I- is selective toward Cu2+ over the tested metal ions such as Hg2+ and Ag+. The assay provides a limit of detection of 0.22 μM for Cu2+ at a signal-to-noise ratio of 3. Practicality of this probe has been validated by the analyses of tap, lake, and sea water samples, with negligible matrix effects.
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Affiliation(s)
- Yu-Syuan Lin
- Department of Chemistry, National Taiwan University Taipei 10617 Taiwan
| | - Yaling Lin
- Department of Chemistry, National Taiwan University Taipei 10617 Taiwan
| | | | - Jinshun Cang
- Department of Chemical Engineering, Yancheng Institute of Industry Technology Yancheng Jiangsu 224005 China
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University Taipei 10617 Taiwan
- Department of Chemistry, Chung Yuan Christian University Taoyuan City 32023 Taiwan
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95
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γ-Aminobutyric acid-modified graphene oxide as a highly selective and low-toxic fluorescent nanoprobe for relay recognition of copper(II) and cysteine. Mikrochim Acta 2019; 186:461. [PMID: 31227913 DOI: 10.1007/s00604-019-3582-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/03/2019] [Indexed: 12/26/2022]
Abstract
A sensitive and selective graphene oxide (GO)-based fluorescent nanoprobe has been developed for the relay recognition of Cu2+ and cysteine (Cys) by covalently grafting γ-aminobutyric acid (GABA) onto GO. The fluorescence of the probe (with excitation/emission maxima at 360/445 nm) is selectively quenched by Cu2+ via static fluorescence quenching. Fluorescence drops linearly as the concentration of Cu2+ is increased from 50 nM to 1.0 µM, and the detection limit for Cu2+ is calculated as 15 nM. By virtue of the strong interaction between Cys and Cu2+, the GO-GABA/Cu2+ complex can further sensitively recognize Cys in a "switch-on" mode. The linear range for Cys detection is from 50 nM to 1.0 µM, and the detection limit is 38 nM. The probe has low cytotoxicity, and it works well inside living cells, which is verified by the successful application in imaging of LLC-PK1 cells. Graphical abstract Gamma-Aminobutyric Acid (GABA) modified graphene oxide (GO) is a highly selective nanoprobe for the fluorometric relay recognition of Cu2+ and Cys.
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96
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Zhang H, Huang Y, Zheng Y, Zhou J, Wu Q, Zhang Z, Gan F, Chen W. Fluorescence covalent interaction enhanced sensor for lead ion based on novel graphitic carbon nitride nanocones. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 217:141-146. [PMID: 30933777 DOI: 10.1016/j.saa.2019.03.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 02/23/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
Novel graphitic carbon nitride nanocones (g-CNNCs) were synthesized for the first time in this study. The SEM, TEM, XPS and FT-IR were used to research the structure of the g-CNNCs. We found that the g-CNNCs showed high selective and sensitive for fluorescence enhancement detection of Pb2+ ion via covalent interaction. In addition, the g-CNNCs exhibit stable and specific concentration-dependent fluorescence intensity in the presence of Pb2+ ion in the range of 1-200 μmol·dm-3, and the limit of detection was estimated to be 0.0438 μmol·dm-3 (3S/k). More importantly, the g-CNNCs were used to detect practical samples with satisfactory results.
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Affiliation(s)
- Hanqiang Zhang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China; College of Chemistry and Materials, Longyan University, Longyan 364000, PR China.
| | - Yihong Huang
- Zhangzhou College of Science & Technology, Zhangzhou 363202, PR China
| | - Yulin Zheng
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China
| | - Jiangcong Zhou
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China
| | - Quansheng Wu
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China
| | - Zhusen Zhang
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China
| | - Feng Gan
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China.
| | - Wuhua Chen
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China.
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97
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Fan Y, Zhang W, Liu Y, Zeng Z, Quan X, Zhao H. Three-Dimensional Branched Crystal Carbon Nitride with Enhanced Intrinsic Peroxidase-Like Activity: A Hypersensitive Platform for Colorimetric Detection. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17467-17474. [PMID: 31021073 DOI: 10.1021/acsami.9b04320] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Graphitic carbon nitride (g-C3N4) as a metal-free nanozyme has attracted huge attention for catalytic applications. However, the catalytic activity of pure g-C3N4 causes very moderate H2O2 activation. Herein, a novel three-dimensional (3D) branched carbon nitride nanoneedle (3DBC-C3N4) nanozyme has been proposed to overcome such shortcoming. This unique 3D branched structure of 3DBC-C3N4 facilitated effective mass transfer during catalytic reaction and induced a lightning rodlike effect to accelerate electron collection at the tip area for H2O2 activation. With improved H2O2 activation for hydroxyl radical (•OH) generation, 3DBC-C3N4 showed excellent peroxidase-like activity toward 3,3',5,5'-tetramethylbenzidine oxidation in the presence of H2O2. As for H2O2, the Vmax value of 3DBC-C3N4 was found to be 20 times higher than that of natural horseradish peroxidase. Moreover, the 3D branched structure of 3DBC-C3N4 offered large interface for the reversible conjugation of single-stranded DNA, which enhanced the colorimetric sensitivity. Moreover, 3DBC-C3N4 exhibited high sensitivity toward oxytetracycline detection, with the detection limit and quantitative limit of 1 and 50 μg/L, respectively.
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Affiliation(s)
- Yaofang Fan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Weican Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Yanming Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Zhenxing Zeng
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Xie Quan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Huimin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
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98
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Xian J, Weng Y, Guo H, Li Y, Yao B, Weng W. One-pot fabrication of Fe-doped carbon nitride nanoparticles as peroxidase mimetics for H 2O 2 and glucose detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:218-224. [PMID: 30826580 DOI: 10.1016/j.saa.2019.02.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 02/03/2019] [Accepted: 02/16/2019] [Indexed: 05/25/2023]
Abstract
Iron-doped carbon nitride nanoparticles (Fe-CNNPs) were prepared from citric acid, urea and ferric chloride through a convenient one-pot solvothermal method. Oleic acid was used as the reaction medium. The morphology and chemical composition of the obtained Fe-CNNPs were characterized by multiple methods including transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR). It is interesting to find that the Fe-CNNPs showed higher catalytic activity than horseradish peroxidase (HRP), and tetramethylbenzidine (TMB) can be catalytically oxidized in the presence of H2O2 to produce a color change in aqueous solution. As H2O2 can be generated in the oxidation process of glucose catalyzed by glucose oxidase (GOD), a novel sensitive method for the detection of glucose with a limit of detection (LOD) of 0.29 μM has been developed combined with the catalytic properties of GOD and Fe-CNNPs. The Fe-CNNPs with peroxidase mimetics activity may have potential applications in biotechnology field.
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Affiliation(s)
- Jiaqi Xian
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Yuhui Weng
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Hantao Guo
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Yan Li
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Bixia Yao
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China; Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Zhangzhou 363000, China; Fujian Provincial Key Laboratory of Pollution Monitoring and Control, Zhangzhou 363000, China
| | - Wen Weng
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China; Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Zhangzhou 363000, China; Fujian Provincial Key Laboratory of Pollution Monitoring and Control, Zhangzhou 363000, China.
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99
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Slassi S, Aarjane M, El-Ghayoury A, Amine A. A highly turn-on fluorescent CHEF-type chemosensor for selective detection of Cu 2+ in aqueous media. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:348-353. [PMID: 30852282 DOI: 10.1016/j.saa.2019.02.099] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/29/2019] [Accepted: 02/23/2019] [Indexed: 06/09/2023]
Abstract
An efficient "turn on" fluorescence chemosensor Schiff base LH based on the combination of 2-Hydroxy-5-(p-tolyldiazenyl)benzaldehyde and N-(3-Aminopropyl)imidazole was prepared and characterized then evaluated for its selective fluorescent sensing of Cu2+ amongst other metal ions. The CN isomerization inhibition process induced by the Cu2+ binding warrants the chelation-induced enhanced fluorescence (CHEF) effect. In addition, the detection limit sensing of LH for Cu2+ was found to be 1.8 × 10-6 M that is below the WHO recommendation level (20 μM) for drinking water.
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Affiliation(s)
- Siham Slassi
- LCBAE, Equipe Chimie Moléculaire et Molécules Bioactives, Faculté des Sciences Université Moulay Ismail, BP 11201 Zitoune, Meknes, Morocco
| | - Mohammed Aarjane
- LCBAE, Equipe Chimie Moléculaire et Molécules Bioactives, Faculté des Sciences Université Moulay Ismail, BP 11201 Zitoune, Meknes, Morocco
| | - Abdelkrim El-Ghayoury
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045 Angers Cedex, France
| | - Amina Amine
- LCBAE, Equipe Chimie Moléculaire et Molécules Bioactives, Faculté des Sciences Université Moulay Ismail, BP 11201 Zitoune, Meknes, Morocco.
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100
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Desalegn BZ, Jadhav HS, Seo JG. Highly Efficient g‐C
3
N
4
Nanorods with Dual Active Sites as an Electrocatalyst for the Oxygen Evolution Reaction. ChemCatChem 2019. [DOI: 10.1002/cctc.201900330] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Bezawit Z. Desalegn
- Advanced Materials and Catalysis Lab Department of Energy Science and TechnologyMyongji University Nam-dong, Cheoin-gu Yongin-si Gyeonggi-do 449-728 South Korea
| | - Harsharaj S. Jadhav
- Advanced Materials and Catalysis Lab Department of Energy Science and TechnologyMyongji University Nam-dong, Cheoin-gu Yongin-si Gyeonggi-do 449-728 South Korea
| | - Jeong Gil Seo
- Advanced Materials and Catalysis Lab Department of Energy Science and TechnologyMyongji University Nam-dong, Cheoin-gu Yongin-si Gyeonggi-do 449-728 South Korea
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