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He Y, Li X, Yao G, Fang S, Yu H, Zou T, Tan W, Wang H. Microwave-assisted preparation of yellow fluorescent graphitic carbon nitride quantum dots for trace tetracycline-specific detection. CHEMOSPHERE 2024; 362:142863. [PMID: 39019172 DOI: 10.1016/j.chemosphere.2024.142863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 07/05/2024] [Accepted: 07/14/2024] [Indexed: 07/19/2024]
Abstract
Tetracycline (TC) is extensively utilized in livestock breeding, aquaculture, and medical industry. TC residues seriously harm food security, the environment, and human health. There is an urgent need to exploit a highly efficient and sensitive testing method to monitor TC residue levels in aquatic environments. In this study, graphitic carbon nitride quantum dots (g-CNQDs) were successfully synthesized by a one-step microwave-assisted method using citric acid and urea as precursors. The as-prepared g-CNQDs with size of 1.25-3.75 nm exhibited bright yellow fluorescence at 523 nm when excited at 397 nm. Interestingly, this characteristic fluorescence emission of g-CNQDs could be selectively and efficiently quenched by TC. Based on this phenomenon, for TC detection was successfully explored and applied in real water samples. Wide linear scope of 7-100 μM, low detection limit (LOD) of 0.48 μM, satisfactory recovery of 97.77%-103.4%, and good relative standard deviation (RSD) of 1.05-5.87% were obtained. Mechanism investigations revealed that the static quenching and the inner filter effect (IFE) were responsible for this fluorescence quenching between g-CNQDs and TC. This work not only provided a facile approach for g-CNQDs synthesis but also constructed a g-CNQDs-based fluorescent sensor platform for the highly sensitive and selective detection of TC in aquatic environments.
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Affiliation(s)
- Yanzhi He
- School of Chemistry and Environment, Yunnan Minzu University, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials of Yunnan Province Education Department, Kunming, 650500, PR China.
| | - Xiaopei Li
- School of Chemistry and Environment, Yunnan Minzu University, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials of Yunnan Province Education Department, Kunming, 650500, PR China.
| | - Guixiang Yao
- School of Chemistry and Environment, Yunnan Minzu University, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials of Yunnan Province Education Department, Kunming, 650500, PR China.
| | - Shuju Fang
- School of Chemistry and Environment, Yunnan Minzu University, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials of Yunnan Province Education Department, Kunming, 650500, PR China.
| | - Hang Yu
- School of Chemistry and Environment, Yunnan Minzu University, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials of Yunnan Province Education Department, Kunming, 650500, PR China.
| | - Tianru Zou
- School of Chemistry and Environment, Yunnan Minzu University, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials of Yunnan Province Education Department, Kunming, 650500, PR China.
| | - Wei Tan
- School of Chemistry and Environment, Yunnan Minzu University, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials of Yunnan Province Education Department, Kunming, 650500, PR China.
| | - Hongbin Wang
- School of Chemistry and Environment, Yunnan Minzu University, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials of Yunnan Province Education Department, Kunming, 650500, PR China.
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He J, Wang L, Liu H, Sun B. Recent advances in molecularly imprinted polymers (MIPs) for visual recognition and inhibition of α-dicarbonyl compound-mediated Maillard reaction products. Food Chem 2024; 446:138839. [PMID: 38428083 DOI: 10.1016/j.foodchem.2024.138839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/08/2024] [Accepted: 02/20/2024] [Indexed: 03/03/2024]
Abstract
α-Dicarbonyl compounds (α-DCs) are important intermediates and precursors of harmful Maillard reaction products (e.g., acrylamide and late glycosylation end-products), and they exist widely in thermoprocessed sugar- or fat-rich foods. α-DCs and their end-products are prone to accumulation in the human body and lead to the development of various chronic diseases. Therefore, detection of α-DCs and their associated hazards in food samples is crucial. This paper reviews the preparation of molecularly imprinted polymers (MIPs) enabling visual intelligent responses and the strategies for recognition and capture of α-DCs and their associated hazards, and provides a comprehensive summary of the development of visual MIPs, including integration strategies and applications with real food samples. The visual signal responses as well as the mechanisms for hazard recognition and capture are highlighted. Current challenges and prospects for visual MIPs with advanced applications in food, agricultural and environmental samples are also discussed. This review will open new horizons regarding visual MIPs for recognition and inhibition of hazards in food safety.
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Affiliation(s)
- Jingbo He
- School of Food and Health, Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Lei Wang
- School of Food and Health, Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Huilin Liu
- School of Food and Health, Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China.
| | - Baoguo Sun
- School of Food and Health, Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
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3
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Zhang S, Nie X, Ren Y, Guo Y. One-Pot facile synthesis of fluorescent copper nanoclusters for highly selective and sensitive detection of tetracycline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124301. [PMID: 38636425 DOI: 10.1016/j.saa.2024.124301] [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: 01/31/2024] [Revised: 04/14/2024] [Accepted: 04/14/2024] [Indexed: 04/20/2024]
Abstract
Due to the excellent characteristics, fluorescent copper nanoclusters (Cu NCs) have aroused great interest in recent years. Herein, the simple prepared, environmentally friendly fluorescent Cu NCs were synthesized by using trypsin as the stabilizer and applied for the determination of tetracycline. Uniformly dispersed Try-Cu NCs were obtained with average size of 3.5 ± 0.3 nm and some excellent merits of good water solubility, UV light stability and salt stability. Emission peaks around 460.0 nm were visibly quenched by tetracycline based on static quenching mechanism and inner filter effect (IFE). Two excellent linear relationships were observed between ln(F0/F) and tetracycline concentrations in the range of 1-100 μM and 100-300 μM with limit of detection (LOD) of 0.084 μM. Meanwhile, this nanoprobe exhibited an apparent selectivity for tetracycline detection. Moreover, Try-Cu NCs were successfully employed to determine tetracycline in serum and milk samples after facile pretreatment with satisfactory recovery rates and credible standard deviation. The results suggested that this as-prepared Try-Cu NCs had excellent application prospects in the future.
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Affiliation(s)
- Shen Zhang
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619 Shanxi, China.
| | - Xin Nie
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619 Shanxi, China
| | - Yan Ren
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619 Shanxi, China
| | - Yuyu Guo
- College of Arts, Taiyuan University of Technology, Jinzhong 030600, Shanxi, China
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He Y, Li Y, Wang H, Luo S, Yu H. Construction of a stable fluorescent sensor based on CsPbBr 3/CdS core/shell quantum dots for selective and sensitive detection of tetracycline in ethanol. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2267-2277. [PMID: 38525547 DOI: 10.1039/d4ay00032c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
The weakly bound organic ligand shells around perovskite quantum dots (QDs) are easily decomposed and cannot provide sufficient stability in polar solvents, which greatly obstructs their applications in sensing. Herein, a fluorescent sensor based on CsPbBr3/CdS core/shell QDs was developed for the detection of tetracycline (TC) in the polar solvent-ethanol. Pristine CsPbBr3 QDs were treated with cadmium diethyldithiocarbamate (Cd(DDTC)2) to form a shell on the surface at 110 °C, while extra oleylammonium bromide (OAmBr) was added to inhibit the phase transformation of CsPbBr3 into a Cs4PbBr6 impurity phase during high-temperature processing. And finally CsPbBr3/CdS core/shell QDs were successfully synthesized. The capping with the CdS inorganic shell remediated surface defects and improved the stability in ethanol without affecting the emission properties of the parent CsPbBr3 QDs. The results showed that the fluorescent sensor detected TC in the range of 0.05-25 μM with a low detection limit of 22.6 nM, whereas it had high selectivity and anti-interference ability for TC. And the fluorescence quenching mechanism of the sensor was mainly photoinduced electron transfer between TC and CsPbBr3/CdS QDs. Our research provides a unique way to improve the stability of perovskite QDs in polar solvents and applications in fluorescence detection.
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Affiliation(s)
- Yang He
- The National Engineering Research Center of Fiber Optic Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China.
| | - Yangjie Li
- The National Engineering Research Center of Fiber Optic Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China.
| | - Han Wang
- The National Engineering Research Center of Fiber Optic Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China.
| | - Site Luo
- The National Engineering Research Center of Fiber Optic Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China.
| | - Haihu Yu
- The National Engineering Research Center of Fiber Optic Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China.
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5
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Wang X, Wang X. UiO-66-NH 2 based fluorescent sensing for detection of tetracyclines in milk. RSC Adv 2022; 12:23427-23436. [PMID: 36090428 PMCID: PMC9382652 DOI: 10.1039/d2ra04023a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/05/2022] [Indexed: 11/24/2022] Open
Abstract
In this work, a fluorescent sensor based on a zirconium-based metal organic framework was prepared for the detection of tetracyclines (TCs) in milk. The UiO-66-NH2 fluorescent sensor was synthesized by a simple microwave-assisted method with 2-aminoterephthalic acid and zirconium chloride as precursors. In the presence of target TCs, the synergistic effect of the inner filter effect (IFE) and photo-induced electron transfer (PET) was responsible for the fluorescence quenching of UiO-66-NH2, and the fluorescence sensor showed a rapid fluorescence quenching response (5 min) to target TCs. The proposed UiO-66-NH2 sensor had good sensitivity and selectivity, and under the optimal conditions possessed detection limits of 0.449, 0.431, and 0.163 μM for tetracycline (TET), oxytetracycline (OTC), and doxycycline (DOX), respectively. Besides, the UiO-66-NH2 sensor was successfully applied to the quantitative detection of TCs in milk samples with reasonable recoveries of 93.26–115.17%, and the detection results achieved from the as-fabricated fluorescence sensing assay were consistent with those of high-performance liquid chromatography (HPLC), indicating the potential applicability of the UiO-66-NH2 sensor for detecting TCs in actual food samples. We have developed a UiO-66-NH2 fluorescent sensor by a simple microwave-assisted method. The synthetic UiO-66-NH2 sensor has good sensitivity and selectivity for tetracyclines determination in milk samples.![]()
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Affiliation(s)
- Xiaohui Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Xufeng Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
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6
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Zhu B, Dong S, Liu Z, Gao Y, Zhu X, Xie M, Liu Q. Enhanced peroxidase-like activity of bimetal (Fe/Co) MIL-101 for determination of tetracycline and hydrogen peroxide. NEW J CHEM 2022. [DOI: 10.1039/d2nj04403j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The peroxidase-like activity of MIL-101(Fe/Co) is improved by adding tetracycline. On the basis of MIL-101(Fe/Co), fast colorimetric sensors of tetracycline and H2O2 have been successfully constructed.
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Affiliation(s)
- Baocan Zhu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Shanmin Dong
- Shandong Hualu-Hengsheng Chemical Co. Ltd, Dezhou, 253024, P. R. China
| | - Zhenchao Liu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Yan Gao
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Xixi Zhu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Min Xie
- Community Health Service Center (University Hospital), University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Qingyun Liu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
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7
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Ascorbic acid stabilized copper nanoclusters as fluorescent probes for selective detection of tetracycline. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.138048] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Quantum-Sized Zinc Oxide Nanoparticles Synthesised within Mesoporous Silica (SBA-11) by Humid Thermal Decomposition of Zinc Acetate. CRYSTALS 2020. [DOI: 10.3390/cryst10060549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A modified facile method is presented to synthesise quantum-sized zinc oxide nanoparticles within the pores of a mesoporous silica host (SBA-11). This method eliminates the 3 h alcohol reflux and the basic solution reaction steps of zinc acetate. The mesoporous structure and the ZnO nanoparticles were analysed by X-ray diffractometry, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, nitrogen sorption analysis and UV–VIS spectroscopy. These tests confirm the synthesis of ~1 nm sized ZnO within the pores of SBA-11 and that the porous structure remained intact after ZnO synthesis.
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9
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Gu B, Chen D, Gao B, Liu Z, Wang Z, Wang T, Yang Y, Guo Q, Wang G. Ultrasensitive Fluorescent Detection of Tetracycline Based on Selective Supramolecular Interaction of Nitrogen Chlorine Co–Doped Graphene Quantum Dots. ChemistrySelect 2020. [DOI: 10.1002/slct.202000816] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Bingli Gu
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Da Chen
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
- Division of Physics and Applied PhysicsSchool of Physical and Mathematical Sciences, Nanyang Technological University Singapore 637371
| | - Bo Gao
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Zhiduo Liu
- State Key Laboratory of Integrated OptoelectronicsInstitute of Semiconductors, Chinese Academy of Sciences Beijing 100083 P. R. China
| | - Zihao Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Ting Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Yongsheng Yang
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Qinglei Guo
- Center of Nanoelectronics and School of MicroelectronicsShandong University Jinan 250100 P. R. China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
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Liu X, Zhou Z, Wang T, Xu Y, Lu K, Yan Y. Molecularly imprinted polymers-captivity ZnO nanorods for sensitive and selective detecting environmental pollutant. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117785. [PMID: 31767418 DOI: 10.1016/j.saa.2019.117785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/08/2019] [Accepted: 11/10/2019] [Indexed: 06/10/2023]
Abstract
To develop the semiconductor of ZnO nanomaterials as the fluorescence sensor without leakage toxicity. Here, a molecularly imprinted polymer captivity ZnO nanorods (NRs) (MIPs-captivity ZnO NRs) was fabricated by precipitation polymerization. Such traditional technology was not only achieved the specific recognition for direct fluorescent quantification of the target tetracycline (TC) through fluorescence quenching, but also formed the shield to reduce the toxic effects of ZnO towards organisms. Under the optimized experimental conditions, the MIPs-captivity ZnO NRs were effectively applied to the direct fluorescence quantification of TC with excellent stability. Moreover, the practical analytical performance of the MIPs-captivity ZnO NRs was assayed by appraising the detection effects of TC in water sample from the Yangtze River with satisfactory results.
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Affiliation(s)
- Xiqing Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhiping Zhou
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Tao Wang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yeqing Xu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Kai Lu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yongsheng Yan
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
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Meng L, Lan C, Liu Z, Xu N, Wu Y. A novel ratiometric fluorescence probe for highly sensitive and specific detection of chlorotetracycline among tetracycline antibiotics. Anal Chim Acta 2019; 1089:144-151. [PMID: 31627811 DOI: 10.1016/j.aca.2019.08.065] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 12/17/2022]
Abstract
It is of great importance to detect chlorotetracycline (CTC) in a highly sensitive and specific way because of its wide distribution in aquaculture and animal husbandry. Herein, we propose a novel ratiometric fluorescence strategy to assay CTC by using bovine serum albumin stabilized gold nanoclusters (BSA-AuNCs). The BSA-AuNCs consisting of 25 gold atoms (Au25NCs) display a red emission at 640 nm (λex = 370 nm). In the presence of CTC, a new blue emission at 425 nm is emerged and its intensity dramatically increases with the addition of more the analyte; meanwhile the red emission at 640 nm shows a linear decrease reversely. However, at identical conditions neither the analogues of CTC as tetracycline (TC), oxytetracycline (OTC) or doxycycline (DC) induces similar response of BSA-AuNCs. Such interesting phenomenon is proven related to the conversion from large Au25NCs to smaller nanoclusters composing 8 gold atoms (Au8NCs), which intrinsically originate from the interaction between CTC and the ligand BSA. Therefore, a ratiometric probe is established to sensitively detect CTC in the wide range (0.2-10 μM) with a low limit of detection (LOD) at 65 nM. In addition, this strategy can also be applied to assay CTC in human serum, showing great promise for practical applications in future.
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Affiliation(s)
- Lei Meng
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China; College of Mechanical and Electrical Engineering, Jilin Institute of Chemical Technology, Jilin, 132022, China
| | - Chengwu Lan
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin, 132022, China
| | - Zhonghu Liu
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin, 132022, China
| | - Na Xu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China; College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin, 132022, China
| | - Yuqing Wu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China.
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Rico-Yuste A, Carrasco S. Molecularly Imprinted Polymer-Based Hybrid Materials for the Development of Optical Sensors. Polymers (Basel) 2019; 11:E1173. [PMID: 31336762 PMCID: PMC6681127 DOI: 10.3390/polym11071173] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/04/2019] [Accepted: 07/08/2019] [Indexed: 12/18/2022] Open
Abstract
We report on the development of new optical sensors using molecularly imprinted polymers (MIPs) combined with different materials and explore the novel strategies followed in order to overcome some of the limitations found during the last decade in terms of performance. This review pretends to offer a general overview, mainly focused on the last 3 years, on how the new fabrication procedures enable the synthesis of hybrid materials enhancing not only the recognition ability of the polymer but the optical signal. Introduction describes MIPs as biomimetic recognition elements, their properties and applications, emphasizing on each step of the fabrication/recognition procedure. The state of the art is presented and the change in the publication trend between electrochemical and optical sensor devices is thoroughly discussed according to the new fabrication and micro/nano-structuring techniques paving the way for a new generation of MIP-based optical sensors. We want to offer the reader a different perspective based on the materials science in contrast to other overviews. Different substrates for anchoring MIPs are considered and distributed in different sections according to the dimensionality and the nature of the composite, highlighting the synergetic effect obtained as a result of merging both materials to achieve the final goal.
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Affiliation(s)
| | - Sergio Carrasco
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden.
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13
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Anand SK, Sivasankaran U, Jose AR, Kumar KG. Interaction of tetracycline with l-cysteine functionalized CdS quantum dots - Fundamentals and sensing application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 213:410-415. [PMID: 30731253 DOI: 10.1016/j.saa.2019.01.068] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 01/17/2019] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
The present paper reports l-cysteine functionalized CdS quantum dots (QDs) as a simple and highly selective turn-off fluorescence sensor for the determination of tetracycline (TET). The unauthorized use of TET may pose serious health hazards in human beings and hence the detection and determination has become very essential. In this regard, we have developed a sensor that enable the quantification of TET in the range 6.00 × 10-4 M to 1.50 × 10-5 M with a limit of detection 7.78 × 10-6 M, under optimized conditions. Steady state and time resolved fluorescence spectroscopic studies were used for investigating the mechanism of quenching and was found to be a combination of static and dynamic processes. The analytical application of the proposed sensor was investigated in pharmaceutical formulation.
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Affiliation(s)
- Sanu K Anand
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India
| | - Unni Sivasankaran
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India
| | - Ammu Rosin Jose
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India
| | - K Girish Kumar
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India.
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14
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Long D, Peng J, Peng H, Xian H, Li S, Wang X, Chen J, Zhang Z, Ni R. A quadruple-channel fluorescent sensor array based on label-free carbon dots for sensitive detection of tetracyclines. Analyst 2019; 144:3307-3313. [DOI: 10.1039/c9an00148d] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A quadruple-channel fluorescent sensor array based on label-free carbon dots (CDs) was fabricated to detect and discriminate a series of tetracyclines (TCs), including chlortetracycline (CTC), oxytetracycline (OTC), tetracycline (TC) and doxycycline (DOX).
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Affiliation(s)
- Dengying Long
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
| | - Jingdong Peng
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
| | - Huanjun Peng
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
| | - Hong Xian
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
| | - Shiyu Li
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
| | - Xiang Wang
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
| | - Jun Chen
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
| | - Zhongying Zhang
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
| | - Ranxi Ni
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- P. R. China
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15
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Nitrogen-Doped Durian Shell Derived Carbon Dots for Inner Filter Effect Mediated Sensing of Tetracycline and Fluorescent Ink. J Fluoresc 2018; 29:221-229. [DOI: 10.1007/s10895-018-2331-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 12/10/2018] [Indexed: 10/27/2022]
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16
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Afzal A, Dickert FL. Imprinted Oxide and MIP/Oxide Hybrid Nanomaterials for Chemical Sensors †. NANOMATERIALS 2018; 8:nano8040257. [PMID: 29677107 PMCID: PMC5923587 DOI: 10.3390/nano8040257] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/11/2018] [Accepted: 04/16/2018] [Indexed: 12/24/2022]
Abstract
The oxides of transition, post-transition and rare-earth metals have a long history of robust and fast responsive recognition elements for electronic, optical, and gravimetric devices. A wide range of applications successfully utilized pristine or doped metal oxides and polymer-oxide hybrids as nanostructured recognition elements for the detection of biologically relevant molecules, harmful organic substances, and drugs as well as for the investigative process control applications. An overview of the selected recognition applications of molecularly imprinted sol-gel phases, metal oxides and hybrid nanomaterials composed of molecularly imprinted polymers (MIP) and metal oxides is presented herein. The formation and fabrication processes for imprinted sol-gel layers, metal oxides, MIP-coated oxide nanoparticles and other MIP/oxide nanohybrids are discussed along with their applications in monitoring bioorganic analytes and processes. The sensor characteristics such as dynamic detection range and limit of detection are compared as the performance criterion and the miniaturization and commercialization possibilities are critically discussed.
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Affiliation(s)
- Adeel Afzal
- Department of Chemistry, College of Science, University of Hafr Al Batin, P.O. Box 1803, Hafr Al Batin 31991, Saudi Arabia.
- Department of Analytical Chemistry, University of Vienna, Währingerstraße 38, 1090 Vienna, Austria.
| | - Franz L Dickert
- Department of Analytical Chemistry, University of Vienna, Währingerstraße 38, 1090 Vienna, Austria.
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Li Liu M, Chen BB, Yang T, Wang J, Dong Liu X, Zhi Huang C. One-pot carbonization synthesis of europium-doped carbon quantum dots for highly selective detection of tetracycline. Methods Appl Fluoresc 2017; 5:015003. [PMID: 28248640 DOI: 10.1088/2050-6120/aa5e2b] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The detection of tetracycline is of great significance because of its damaging effects on human health, such as renal toxicity and hemolytic anemia. Any release of tetracycline into the surrounding environment can produce bacterial drug resistance. We develop a new sensitive and selective detection approach for tetracycline in complex water samples by preparing europium-doped carbon quantum dots (Eu-CQDs) through a simple and rapid carbonization method operating at 200 °C for 5 min. The Eu-CQDs are characterized by blue photoluminescence, excitation-wavelength-dependent emission and excellent stability. Importantly, the fluorescence of the Eu-CQDs can be quenched efficiently by tetracycline, based on the strong inner filter effect mechanism between Eu-CQDs and tetracycline, making the fluorescence intensity ratio (I 0/I) of the Eu-CQDs at 465 nm correlate linearly with the concentration of tetracycline in the range of 0.5-200 μM, with a limit of detection of 0.3 μM. This shows the broad applicability of the Eu-CQDs in pursuing the concepts of simplicity and specificity for analytical purposes.
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Affiliation(s)
- Meng Li Liu
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China
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