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Xie X, Chen X, Wang Y, Zhang M, Fan Y, Yang X. High-loading Cu single-atom nanozymes supported by carbon nitride with peroxidase-like activity for the colorimetric detection of tannic acid. Talanta 2023; 257:124387. [PMID: 36841014 DOI: 10.1016/j.talanta.2023.124387] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/07/2023] [Accepted: 02/18/2023] [Indexed: 02/23/2023]
Abstract
The design of nanozymes with high metal atom loading is of great significance to improve enzyme activity and is also the key to furthering the construction of highly sensitive colorimetric sensors. In this work, a colorimetric sensor for the quantitative analysis of tannic acid (TA) was developed based on two-dimensional carbon nanosheet carbon nitride (CN)-supported Cu single-atom nanozymes (Cu/CN). Cu/CN was synthesized by supramolecular preorganization and calcination, with an ultrathin nanosheet structure and a high density of Cu active sites, with a Cu loading of up to 14.3 wt%. Benefiting from the above characteristics, Cu/CN exhibits peroxidase-mimicking activity and excellent catalytic performance. Therefore, a colorimetric sensor was constructed for the fast and sensitive quantitative analysis of TA with good linearity in the range of 0.09-3.2 μM and a low detection limit of 30 nM. Furthermore, the sensor was successfully applied to the analysis of TA in tea samples of different varieties. This work sheds new light on the design of nanozymes with a high density of active sites and the analysis of TA in real environments.
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Affiliation(s)
- Xiaoyi Xie
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, China
| | - Xiaofang Chen
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, China
| | - Yaohui Wang
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, China
| | - Maosen Zhang
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, China
| | - Yuxiu Fan
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, China
| | - Xiupei Yang
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, China.
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2
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Tavallali H, Parhami A, Rajaei Dastghaib S, Karimi MA. A novel and simple naphthol azo dye chemosensor as a naked eye detection tool for highly selective, sensitive and accurate determination of thiourea in tap water, juices and fruit skins. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 289:122194. [PMID: 36512963 DOI: 10.1016/j.saa.2022.122194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 11/22/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
In the present study, a highly accurate and sensitive azo-dye-based colorimetric sensor based on Eriochrome Black T (EBT) was proposed to detect and determine thiourea (TU). TU is truly an important toxic and carcinogenic hazardous pollutant as approved by EPA and IARC. This chemosensor shows a distinct color change from blue to pink during interaction with TU in aqueous medium. So EBT is capable as an applied tool for naked eye detection of TU as its color change is easily observed without any means. The sensing mechanism was also investigated using UV-vis absorption and FT-IR spectra. The linear range and the detection limit of TU sensing were respectively 0.15-18.5 μmol/L and 0.02 μmol/L. In addition, the relative standard deviation (RSD) based on ten repetitions calculated for two different TU concentrations 4.4 and 9.0 μmol/L were 2.3 % and 1.8 %, respectively. Besides its useful application as a naked eye detection tool, the advantages of the developed method include simplicity, elimination of tedious separation and pre-concentration steps, executable in neutral aqueous media, low costs, high accuracy, linear response for wide range of concentrations, low detection limit, high sensitivity, compatibility, and excellent selectivity. The concentration of TU in tap water, fruit juices or fruit skin samples can be visually detected and determined easily using this method. The results showed that EBT is an ideal colorimetric chemosensor for TU, which has been reported for the first time.
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Affiliation(s)
- Hossein Tavallali
- Department of Chemistry, Payame Noor University, 19395-4697 Tehran, Islamic Republic of Iran.
| | - Abolfath Parhami
- Department of Chemistry, Payame Noor University, 19395-4697 Tehran, Islamic Republic of Iran
| | - Shiva Rajaei Dastghaib
- Department of Chemistry, Payame Noor University, 19395-4697 Tehran, Islamic Republic of Iran
| | - Mohammad Ali Karimi
- Department of Chemistry, Payame Noor University, 19395-4697 Tehran, Islamic Republic of Iran
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Fluorescence determination of tannic acid imprinted in conjugated hypercrosslinked polymers by Friedel-Crafts acylation. Mikrochim Acta 2023; 190:68. [PMID: 36694059 DOI: 10.1007/s00604-023-05638-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/26/2022] [Indexed: 01/26/2023]
Abstract
A molecularly imprinted hypercrosslinked polymer (HCP) was synthesized from the polymerization of mesitylene monomer, terephthaloyl chloride crosslinker, and tannic acid (TA) template through FeCl3-catalyzed Friedel-Crafts acylation. The TA-imprinted HCP (TAHCP) was capable of IUPAC Type I mesoporosity, with specific surface area of 1258 m2 g-1, monolayer adsorption capacity of 289 cm2 g-1, pore sizes ranging from 4.4 to 12.6 Å, amorphous morphology, and characteristic absorption and emission bands. The extended π-conjugation framework of TAHCP was endowed with 385-nm fluorescent emission at 310-nm excitation. The fluorescence intensity of TAHCP could be dynamically quenched by TA and was linearly correlated with 20-1000 nM TA concentrations on the Stern-Volmer plot in the optimized conditions of pH 5.5 buffer, 100 μg mL-1 TAHCP, and 3.5 min equilibrium. The relative standard deviation (RSD) for 50 nM TA was 3.4% (n = 5), and the limit of detection was 6.2 nM based on the 3σ of the TA blanks). For 50nM TA, the imprinted factor was calculated to be 7.8, and the selectivity for 250 nM interferents, including ions, organic acids, saccharides, amino acids, and caffeine, which are commonly found in beverages, was 7.5-9.5, except for gallic acid (1.2). The recoveries of TA spiked in tea and juice beverages at three levels (10-150 nM) were 93.6-101.9% (RSD = 3.6-4.3%).
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4
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Inhibition to dual enzyme-like activities of Ag/CeO2 nanozymes for the detection of thiourea. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Chandrakar V, Tapadia K, Gupta SK. Greener approach for gold nanoparticles synthesis from fruit peel extract of Manilkara zapota: a fluorometric assay for determination of thiourea. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2081203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Affiliation(s)
- Varsha Chandrakar
- Department of Chemistry, National Institute of Technology, Raipur, India
| | - Kavita Tapadia
- Department of Chemistry, National Institute of Technology, Raipur, India
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Hu Q, Chen S, Chen F. Determination of thiourea by terbium (III)/ prulifloxacin sensitized potassium permanganate-sulfite chemiluminescence with quenching method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 264:120332. [PMID: 34488001 DOI: 10.1016/j.saa.2021.120332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/17/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Based on the thiourea quenching of the chemiluminescence of Tb3+/ prulifloxacin (PUFX) sensitized KMnO4-Na2SO3 system, a convenient and rapid chemiluminescence method for the determination of thiourea was proposed. The reaction between KMnO4 and Na2SO3 brought only weak chemiluminescence, but the chemiluminescence increased sharply in the presence of sensitizer Tb3+/ PUFX. Addition of thiourea can prevent the reaction between KMnO4 and Na2SO3, thus the chemiluminescence intensity was significantly decreased. Under the optimum conditions, the calibration graphs for thiourea were linear in the range of 1.0 × 10-7 to 4.0 × 10-5 mol•L-1. The limit of detection was 6.4 × 10-8 mol•L-1. The method was applied satisfactorily to the determination of thiourea in tap water, lake water and rice noodles and the spiked recoveries were between 104.7 ~ 113.4%. The possible mechanism of sensitization and quenching was also proposed.
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Affiliation(s)
- Qi Hu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Si Chen
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Fang Chen
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China.
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7
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Arias Velasco V, Caicedo Chacón WD, Carvajal Soto AM, Ayala Valencia G, Granada Echeverri JC, Agudelo Henao AC. Carbon Quantum Dots Based on Carbohydrates as Nano Sensors for Food Quality and Safety. STARCH-STARKE 2021. [DOI: 10.1002/star.202100044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Valentina Arias Velasco
- Facultad de Ingeniería y Administración Universidad Nacional de Colombia sede Palmira Palmira AA 237 Colombia
| | - Wilson D. Caicedo Chacón
- Department of Chemical and Food Engineering Federal University of Santa Catarina Florianópolis SC 88040–900 Brazil
| | - Angélica M. Carvajal Soto
- Facultad de Ingeniería y Administración Universidad Nacional de Colombia sede Palmira Palmira AA 237 Colombia
| | - Germán Ayala Valencia
- Department of Chemical and Food Engineering Federal University of Santa Catarina Florianópolis SC 88040–900 Brazil
| | - Juan C. Granada Echeverri
- Physics Department and Centre for Bioinformatics and Photonics CIBioFi, Universidad del Valle Cali AA 25360 Colombia
| | - Ana C. Agudelo Henao
- Facultad de Ingeniería y Administración Universidad Nacional de Colombia sede Palmira Palmira AA 237 Colombia
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8
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Zhao Y, Fu Q, Cui X, Chi H, Lu Y, Liu X, Yu M, Fei Q, Feng G, Shan H, Huan Y. A colorimetric sensor for detecting thiourea based on inhibiting peroxidase-like activity of gold-platinum nanoparticles. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1069-1074. [PMID: 33576364 DOI: 10.1039/d0ay02283g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, gold-platinum nanoparticles (Au@PtNPs) with peroxidase-like activity were synthesized. In the absence of thiourea (TU), the Au@PtNPs can catalyze the decomposition of hydrogen peroxide, and oxidize 3,3',5,5'-tetramethylbenzidine dihydrochloride (TMB, colorless) into oxidized 3,3',5,5'-tetramethylbenzidine dihydrochloride (oxTMB, blue). The peroxidase-like activity of the Au@PtNPs is inhibited in the presence of TU, and TMB cannot be oxidized to oxTMB effectively, and no blue color could be observed. Based on this finding, a novel colorimetric sensor for detecting TU is proposed. The absorbance response curve showed a good linearity for the concentration of TU in the range of 10 nmol L-1 to 10 μmol L-1 with a correlation coefficient of R2 = 0.999, and the limit of detection is 9.57 nmol L-1. The colorimetric sensor possesses excellent selectivity, anti-interference ability, and application value in actual samples.
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Affiliation(s)
- Yuqi Zhao
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Qingjie Fu
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Xiaoqian Cui
- Department of Emergency and Critical Care, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Hui Chi
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Yongzhuang Lu
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Xiaoli Liu
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Miao Yu
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Qiang Fei
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Guodong Feng
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Hongyan Shan
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Yanfu Huan
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
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9
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Kinetic-spectrophotometric approach to the modified Berthelot procedure for serum urea determination. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01315-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Size-modulated optical property of gold nanorods for sensitive and colorimetric detection of thiourea in fruit juice. Talanta 2020; 225:121965. [PMID: 33592719 DOI: 10.1016/j.talanta.2020.121965] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/12/2020] [Accepted: 11/30/2020] [Indexed: 02/06/2023]
Abstract
As an important sulfur compound, thiourea (TU) has caused great concern because of its wide application as well as its serious toxicity and hazard to the environment. Thus, it is necessary to develop a sensitive and selective method for TU analysis. In this work, gold nanorods (AuNRs) acted as an optical probe to realize the sensitive and colorimetric detection of TU. In HCl medium, Fe3+ at low concentration was difficult to oxide Au0 to form Au+ because of the high redox potential or the positive Gibbs free energy change. However, this process was possible when TU was present since the association constant between Au+ and TU is great enough to bind with TU to form a stable complex to further promote the etching of AuNRs, resulting in the lower aspect ratio of AuNRs with the blue shift and intensity decrease in extinction spectra, accompanied by the divisive colors of AuNRs solution or colorful dark-field light scattering imaging of single AuNR. The blue-shift of AuNRs longitudinal plasmon resonance absorption (LPRA) band was proportional to the concentration of TU in the range of 1-250 nM and the limit of detection (3σ/k) was as low as 0.4 nM. In addition, the colorimetric method was proven with high selectivity in the presence of potential interfering compounds, which was successfully applied to the detection of TU in fruit juice samples. This proposed colorimetric method provides a simple, sensitive yet selective measurement tool for TU sensing, which may offer new opportunities in the development of colorimetric sensors for food safety in the future.
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11
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Wang R, Yue N, Fan A. Nanomaterial-enhanced chemiluminescence reactions and their applications. Analyst 2020; 145:7488-7510. [PMID: 33030463 DOI: 10.1039/d0an01300e] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chemiluminescence (CL) analysis is a trace analytical method that possesses advantages including high sensitivity, wide linear range, easy operation, and simple instruments. With the development of nanotechnology, many nanomaterial (NM)-enhanced CL systems have been established in recent years and applied for the CL detection of metal ions, anions, small molecules, tumor markers, sequence-specific DNA, and RNA. This review summarizes the research progress of the nanomaterial-enhanced CL systems the past five years. These CL reactions include luminol, peroxyoxalate, lucigenin, ultraweak CL reactions, and so on. The CL mechanisms of the nanomaterial-enhanced CL systems are discussed in the first section. Nanomaterials take part in the CL reactions as the catalyst, CL emitter, energy acceptor, and reductant. Their applications are summarized in the second section. Finally, the challenges and opportunities are discussed.
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Affiliation(s)
- Ruyuan Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China.
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12
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Piovesan JV, Santana ER, Spinelli A. A carbon paste electrode improved with poly(ethylene glycol) for tannic acid surveillance in beer samples. Food Chem 2020; 326:127055. [DOI: 10.1016/j.foodchem.2020.127055] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/05/2020] [Accepted: 05/12/2020] [Indexed: 12/29/2022]
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13
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A chemiluminescence reaction consisting of manganese(IV), sodium sulfite, and sulfur- and nitrogen-doped carbon quantum dots, and its application for the determination of oxytetracycline. Mikrochim Acta 2020; 187:191. [PMID: 32108911 DOI: 10.1007/s00604-020-4168-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/13/2020] [Indexed: 10/24/2022]
Abstract
Sulfur- and nitrogen-doped carbon quantum dots (S,N-CQDs) were prepared by a solid-phase hydrothermal method from cysteine and citric acid and characterized by transmission electron microscopy, energy-dispersive X-ray spectroscopy, and FTIR spectroscopy. These QDs were exploited as enhancers to amplify the chemiluminescence (CL) of manganese(IV)-sodium sulfite reaction. S,N-CQDs exceptionally enhanced the CL intensity of this system, around 900-fold. This effect was attributed to the energy transfer from SO2*, produced by reaction of Mn(IV) with SO32-, to S,N-CQDs. The maximum wavelength of CL emission was 480 nm, which confirmed that the final emitting species was S,N-CQDs. After optimization of reaction conditions, the analytical applicability of S,N-CQD-Mn(IV)-SO32- CL system was studied. In the presence of oxytetracycline, the CL intensity was significantly diminished. A linear relationship was observed between CL signal and the logarithm of oxytetracycline concentration in the range of 0.075-3.0 μM with a detection limit of 25 nM. This CL assay for oxytetracycline was used for analysis of spiked milk and water samples. Graphical abstractSchematic representation of the amplified chemiluminescence (CL) reaction consisting of sulfur- and nitrogen-doped carbon quantum dots (S,N-CQDs) Mn(IV) and Na2SO3. Sub-micromolar levels of oxytetracycline can be determined by using this system.
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Zhang C, Wu S, Yu Y, Chen F. Determination of thiourea based on the reversion of fluorescence quenching of nitrogen doped carbon dots by Hg 2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117666. [PMID: 31670045 DOI: 10.1016/j.saa.2019.117666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/15/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Herein, a facile and quick strategy to detect thiourea was conducted based on the reversion of fluorescence quenching of nitrogen doped carbon dots (NCDs) by Hg2+. The NCDs with good water solubility and 17% of quantum yield was synthesized by one-step hydrothermal method, using ammonium citrate and dextrin as carbon source and nitrogen source, respectively. The fluorescence of NCDs was obviously quenched by Hg2+ and can be recovered, due to stronger interaction between thiourea and Hg2+. There was a good linear relationship between the recovered fluorescence and the concentration of thiourea within range of 0.90-10.0 μM and the detection limit for thiourea detection was 0.15 μM. The as-prepared NCDs can be used for determination of thiourea in tap water, lake water and rice flour products, and the spike recoveries were between 91.6 and 108%.
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Affiliation(s)
- Cengceng Zhang
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Key laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Shu Wu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Key laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Yuanyuan Yu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Key laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Fang Chen
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Key laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China.
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15
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Shah SNA, Khan M, Rehman ZU. A prolegomena of periodate and peroxide chemiluminescence. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115722] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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16
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Yang R, Mu WY, Chen QY. Urazole-Au Nanocluster as a Novel Fluorescence Probe for Curcumin Determination and Mitochondria Imaging. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01519-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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17
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Song H, Su Y, Zhang L, Lv Y. Quantum dots‐based chemiluminescence probes: an overview. LUMINESCENCE 2019; 34:530-543. [DOI: 10.1002/bio.3633] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/16/2019] [Accepted: 03/19/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Hongjie Song
- College of ChemistrySichuan University Chengdu Sichuan China
| | - Yingying Su
- Analytical & Testing CenterSichuan University Chengdu Sichuan China
| | - Lichun Zhang
- College of ChemistrySichuan University Chengdu Sichuan China
| | - Yi Lv
- College of ChemistrySichuan University Chengdu Sichuan China
- Analytical & Testing CenterSichuan University Chengdu Sichuan China
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Environmentally Benign Carbon Nanodots Prepared from Lemon for the Sensitive and Selective Fluorescence Detection of Fe(III) and Tannic Acid. J Fluoresc 2019; 29:631-643. [PMID: 30993505 DOI: 10.1007/s10895-019-02360-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 02/20/2019] [Indexed: 10/27/2022]
Abstract
Photoluminescent carbon nanodots (CNDs) were prepared using a biocarbon source of lemon extract. The obtained CNDs are of spherical shape and are enriched with the carboxylic acid fucntionalities. CNDs exhibited a fluorescence emission at 445 nm and unveiled blue luminescence in ultraviolet excitation. The influences of pH and ionic strength toward the stability of CNDs were investigated in detail and the obtained stability authenticates their applicability in different environmental conditions. The competitive binding of Fe3+ with CNDs quenches the fluorescence behavior of CNDs and was further quenched with the selective complex formation of Fe3+ with tannic acid (TA). The interference experiments specified that CNDs-Fe3+ assembly selectively detected TA and the co-existing molecules have not influenced the quenching effect of TA with CNDs-Fe3+. The analytical reliability of constructed sensor was validated from the recovery obtained in the range of 91.66-107.02% in real samples. Thus the low cost and environmentally benign CNDs prepared from natural biomass provide new avenues in the fluorescence detection of biologically significant metal ions and biomolecules, facilitating their competency in on-site applications of real environmental samples.
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19
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Yang P, Zhu Z, Chen M, Zhou X, Chen W. Microwave-assisted synthesis of polyamine-functionalized carbon dots from xylan and their use for the detection of tannic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 213:301-308. [PMID: 30708287 DOI: 10.1016/j.saa.2019.01.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 12/28/2018] [Accepted: 01/15/2019] [Indexed: 05/25/2023]
Abstract
A facile and straightforward microwave-assisted method was used to prepare polyamine-functionalized carbon dots (CDs) from a precursor comprising renewable xylan and branched polyethyleneimine (BPEI). The as-prepared BPEI-CDs were monodispersed sphere particles with an average diameter of about 8.62 nm, and exhibited excellent fluorescent property and high stability, as well as excitation-independent emission behavior. Furthermore, it is attractive that the BPEI-CDs can be used as novel fluorescent probes for detecting tannic acid (TA) sensitively and selectively. At the optimum condition, the TA detection system was established in water solution and ethanol solution with a dynamic range from 0.1 to 5 μM, and their detection limit of 36.8 nM and 44.9 nM were also determined, respectively. Most importantly, the BPEI-CDs-based sensors can be successfully applied to detect TA in real lake water and white wine samples, suggesting the low-cost and excellent BPEI-CDs are potential suitable for TA detection in practical application.
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Affiliation(s)
- Pei Yang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ziqi Zhu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Minzhi Chen
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoyan Zhou
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Weimin Chen
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
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Fan X, Fan Z. Determination of Thiourea by On–Off Fluorescence Using Nitrogen-Doped Graphene Quantum Dots. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1590844] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaoxia Fan
- Department of Chemistry, Shanxi Normal University, Linfen, China
| | - Zhefeng Fan
- Department of Chemistry, Shanxi Normal University, Linfen, China
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22
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Molaei MJ. A review on nanostructured carbon quantum dots and their applications in biotechnology, sensors, and chemiluminescence. Talanta 2018; 196:456-478. [PMID: 30683392 DOI: 10.1016/j.talanta.2018.12.042] [Citation(s) in RCA: 194] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 12/22/2022]
Abstract
Carbon quantum dots (CQDs) are a member of carbon nanostructures family which have received increasing attention for their photoluminescence (PL), physical and chemical stability and low toxicity. The classical semiconductor quantum dots (QDs) are semiconductor particles that are able to emit fluorescence by excitation. The CQDs is mainly referred to photoluminescent carbon nanoparticles less than 10 nm, with surface modification or functionalization. Contrary to other carbon nanostructures, CQDs can be synthesized and functionalized fast and easily. The fluorescence origin of the CQDs is a controversial issue which depends on carbon source, experimental conditions, and functional groups. However, PL emissions originated from conjugated π-domains and surface defects have been proposed for the PL emission mechanisms of the CQDs. These nanostructures have been used as nontoxic alternatives to the classical heavy metals containing semiconductor QDs in some applications such as in-vivo and in-vitro bio-imaging, drug delivery, photosensors, chemiluminescence (CL), and etc. This paper will introduce CQDs, their structure, and PL characteristics. Recent advances of the application of CQDs in biotechnology, sensors, and CL is comprehensively discussed.
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Affiliation(s)
- Mohammad Jafar Molaei
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood 3619995161, Iran.
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Amjadi M, Hallaj T, Manzoori JL, Shahbazsaghir T. An amplified chemiluminescence system based on Si-doped carbon dots for detection of catecholamines. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 201:223-228. [PMID: 29753967 DOI: 10.1016/j.saa.2018.04.058] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/24/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
We report on a chemiluminescence (CL) system based on simultaneous enhancing effect of Si-doped carbon dots (Si-CDs) and cetyltrimethylammonium bromide (CTAB) on HCO3--H2O2 reaction. The possible CL mechanism is investigated and discussed. Excited-state Si-CDs was found to be the final emitting species, which are probably produced via electron and hole injection by oxy-radicals. The effect of several other heteroatom-doped CDs and undoped CDs was also investigated and compared with Si-CDs. Furthermore, it was found that catecholamines such as dopamine, adrenaline and noradrenaline remarkably diminish the CL intensity of Si-CD-HCO3--H2O2-CTAB system. By taking advantage of this fact, a sensitive probe was designed for determination of dopamine, adrenaline and noradrenaline with a limit of detection of 0.07, 0.60 and 0.01 μM, respectively. The method was applied to the determination of catecholamines in human plasma samples.
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Affiliation(s)
- Mohammad Amjadi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran.
| | - Tooba Hallaj
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran
| | - Jamshid L Manzoori
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran
| | - Tahmineh Shahbazsaghir
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran
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Liu Y, Han S. A chemiluminescence resonance energy transfer for the determination of indolyl acetic acid using luminescent nitrogen-doped carbon dots as acceptors. NEW J CHEM 2018. [DOI: 10.1039/c7nj04215a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A CRET method was fabricated for the determination of IAA using Ce(iv)–Na2SO3 as the donor and N-CDs as the acceptor.
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Affiliation(s)
- Yan Liu
- School of Chemistry and Material Science
- Shanxi Normal University
- Linfen 041004
- P. R. China
| | - Suqin Han
- School of Chemistry and Material Science
- Shanxi Normal University
- Linfen 041004
- P. R. China
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