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Yang L, An Y, Xu D, Dai F, Shao S, Lu Z, Liu G. Comprehensive Overview of Controlled Fabrication of Multifunctional Fluorescent Carbon Quantum Dots and Exploring Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309293. [PMID: 38342681 DOI: 10.1002/smll.202309293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/24/2024] [Indexed: 02/13/2024]
Abstract
In recent years, carbon dots (CDs) have garnered increasing attention due to their simple preparation methods, versatile performances, and wide-ranging applications. CDs can manifest various optical, physical, and chemical properties including quantum yield (QY), emission wavelength (Em), solid-state fluorescence (SSF), room-temperature phosphorescence (RTP), material-specific responsivity, pH sensitivity, anti-oxidation and oxidation, and biocompatibility. These properties can be effectively regulated through precise control of the CD preparation process, rendering them suitable for diverse applications. However, the lack of consideration given to the precise control of each feature of CDs during the preparation process poses a challenge in obtaining the requisite features for various applications. This paper is to analyze existing research and present novel concepts and ideas for creating CDs with different distinct features and applications. The synthesis methods of CDs are discussed in the first section, followed by a comprehensive overview of the important properties of CDs and the modification strategy. Subsequently, the application of CDs and their requisite properties are reviewed. Finally, the paper outlines the current challenges in controlling CDs properties and their applications, discusses potential solutions, and offers suggestions for future research.
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Affiliation(s)
- Lijuan Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Yibo An
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Dazhuang Xu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Fan Dai
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Shillong Shao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Zhixiang Lu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
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2
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Lu C, Wei H, Xu L, Wang WL, Yang C, Shi X, Gao H, Feng YW, Zhou J, Zhang Y. Enrichment of sialic acid-containing casein glycomacropeptide in protein hydrolysates using phenylboronic acid-functionalized mesoporous silica nanoparticles. Talanta 2024; 267:125174. [PMID: 37708769 DOI: 10.1016/j.talanta.2023.125174] [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: 07/14/2023] [Revised: 08/22/2023] [Accepted: 09/06/2023] [Indexed: 09/16/2023]
Abstract
Glycomacropeptide (GMP) is a bioactive peptide of high value, rich in glycosylation sites and with physiological and dietary therapeutic value. The enrichment and detection of GMP facilitates the accurate quantification and the identification of adulteration of GMP in food products. In GMP, sialic acid is an abundant glycosyl group and is mainly located at the end of the sugar chain. Here, we propose a novel GMP enrichment strategy based on the affinity of sialic acid for phenylboronic acid groups that shift with environmental pH. As an enrichment material, mesoporous silica nanoparticles were progressively modified with aminopropyl and phenylboronic acid groups. The developed material showed excellent selectivity for sialic acid in the presence of galactose and fucose as interferents. The adsorption behavior of sialic acid-containing GMP fits the Langmuir adsorption model, offering a recovery of 71.72% (in terms of sialic acid content) and a GMP relative purity of 0.957. Results from sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and size exclusion chromatography confirm that the enriched GMP contains almost no other unexpected proteins and peptides, indicating that the developed strategy holds promise for purifying GMP in various dairy systems.
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Affiliation(s)
- Chenhui Lu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Haodong Wei
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Lizhi Xu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Wen-Long Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Cheng Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Xueli Shi
- Shijiazhuang City Maternal and Child Health Hospital, Shijiazhuang, 050051, Hebei, China.
| | - Hui Gao
- Shijiazhuang City Maternal and Child Health Hospital, Shijiazhuang, 050051, Hebei, China.
| | - Yong-Wei Feng
- Technology Innovation Center of Special Food for State Market Regulation, Wuxi Food Safety Inspection and Test Center, Wuxi, 214100, China.
| | - Jianzhong Zhou
- College of Food Science and Pharmacy, Xinjiang Agricultural University, No. 311 Nongda Dong Road, Ürümqi, 830052, Xinjiang Uygur Autonomous Region, PR China.
| | - Yi Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
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3
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Xiao Q, Mu P, Ning G, Zhang W, Li B, Huang S. A ratiometric fluorescent probe for simultaneous detection of L-ascorbic acid and alkaline phosphatase activity based on red carbon dots/polydopamine nanocomposite. Talanta 2023; 264:124724. [PMID: 37271005 DOI: 10.1016/j.talanta.2023.124724] [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: 01/12/2023] [Revised: 05/04/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023]
Abstract
Herein, efficient red carbon dots (R-CDs) were synthesized by one-step hydrothermal treatment of N-(4-amino phenyl) acetamide and (2,3-difluoro phenyl) boronic acid. The optimal emission peak of R-CDs was at 602 nm (under 520 nm excitation) and the absolute fluorescence quantum yield of R-CDs was 12.9%. Polydopamine, which was formed by the self-polymerization and cyclization of dopamine in alkaline condition, emitted characteristic fluorescence with peak position of 517 nm (under 420 nm excitation) and affected the fluorescence intensity of R-CDs through inner filter effect. L-Ascorbic acid (AA), which was the hydrolysis product of L-ascorbic acid-2-phosphate trisodium salt under the catalytic reaction of alkaline phosphatase (ALP), effectively prevented the polymerization of dopamine. Combined with the ALP-mediated AA production and the AA-mediated polydopamine generation, the ratiometric fluorescence signal of polydopamine with R-CDs was correlated closely with the concentration of both AA and ALP. Under optimal conditions, the detection limits of AA and ALP were 0.28 μM during linear range of 0.5-30 μM and 0.044 U/L with linear range of 0.05-8 U/L, respectively. This ratiometric fluorescence detection platform can efficiently shield the background interference of sophisticated samples by introducing a self-calibration as reference signal in a multi-excitation mode, which can detect AA and ALP in human serum samples with satisfactory results. Such R-CDs/polydopamine nanocomposite provides a steadfast quantitative information and makes R-CDs be excellent candidate for biosensors via combining target recognition strategy.
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Affiliation(s)
- Qi Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, China.
| | - Pingping Mu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, China
| | - Gan Ning
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, China
| | - Wenqian Zhang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, China
| | - Bo Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, China
| | - Shan Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, China.
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Zhao J, Ni Y, Tan L, Zhang W, Zhou H, Xu B. Recent advances in meat freshness "magnifier": fluorescence sensing. Crit Rev Food Sci Nutr 2023:1-17. [PMID: 37555377 DOI: 10.1080/10408398.2023.2241553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
To address the serious waste of meat resources and food safety problems caused by the decrease in meat freshness due to the action of microorganisms and enzymes, a low-cost, time-saving and high-efficiency freshness monitoring method is urgently needed. Fluorescence sensing could act as a "magnifier" for meat freshness monitoring due to its ability to sense characteristic signal produced by meat spoilage. Here, the magnification mechanism of meat freshness via sensing the water activity, adenosine triphosphate, hydrogen ion, total volatile basic nitrogen, hydrogen sulfide, bioamines was comprehensively analyzed. The existing "magnifier" forms including paper chips, films, labels, arrays, probes, and hydrogels as well as the application in livestock, poultry and aquatic meat freshness monitoring were reviewed. Future research directions involving innovation of principles, visualization and quantification capabilities for various meats freshness were provided. By critically evaluating the potential and limitations, efficient and reliable meat freshness monitoring strategies wish to be developed for the post-epidemic era.
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Affiliation(s)
- Jinsong Zhao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui Province, China
| | - Yongsheng Ni
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui Province, China
| | - Lijun Tan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui Province, China
| | - Wendi Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui Province, China
| | - Hui Zhou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui Province, China
| | - Baocai Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui Province, China
- Engineering Research Center of Bio-Process of Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei, Anhui Province, China
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Niu C, Yao Z, Jiang S. Synthesis and application of quantum dots in detection of environmental contaminants in food: A comprehensive review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 882:163565. [PMID: 37080319 DOI: 10.1016/j.scitotenv.2023.163565] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
Environmental pollutants can accumulate in the human body through the food chain, which may seriously impact human health. Therefore, it is of vital importance to develop quick, simple, accurate and sensitive (respond quickly) technologies to evaluate the concentration of environmental pollutants in food. Quantum dots (QDs)-based fluorescence detection methods have great potential to overcome the shortcomings of traditional detection methods, such as long detection time, cumbersome detection procedures, and low sensitivity. This paper reviews the types and synthesis methods of QDs with a focus on green synthesis and the research progress on rapid detection of environmental pollutants (e.g., heavy metals, pesticides, and antibiotics) in food. Metal-based QDs, carbon-based QDs, and "top-down" and "bottom-up" synthesis methods are discussed in detail. In addition, research progress of QDs in detecting different environmental pollutants in food is discussed, especially, the practical application of these methods is analyzed. Finally, current challenges and future research directions of QDs-based detection technologies are critically discussed. Hydrothermal synthesis of carbon-based QDs with low toxicity from natural materials has a promising future. Research is needed on green synthesis of QDs, direct detection without pre-processing, and simultaneous detection of multiple contaminants. Finally, how to keep the mobile sensor stable, sensitive and easy to store is a hot topic in the future.
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Affiliation(s)
- Chenyue Niu
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China.
| | - Zhiliang Yao
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China.
| | - Shanxue Jiang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China.
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Shi C, Luo J, Wang Y, Ding L, Liang Q, Yang Z, Lu J, Wu A. A water-soluble naphthalimide fluorescent probe for Cr 2O 72- and Fe 3+ based on inner filter effect. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 289:122245. [PMID: 36535222 DOI: 10.1016/j.saa.2022.122245] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
A probe 3 (2-ethoxy-N-(2-(2-(2-hydroxyethoxy)ethyl)-1,3-dioxo-2,3-dihydro-1H-benzo[de] isoquinolin-6-yl)benzamide) that could selectively respond to Cr2O72- and Fe3+ was reported in this paper. The selectivity, pH titration, concentration titration, detection limit, time dependence, quenching constant and recognition mechanism of probe 3 for Cr2O72- and Fe3+ were studied in CH3CN/HEPES buffer solution. The results showed that Cr2O72- and Fe3+ could rapidly quench the fluorescence of probe 3 through the inner filter effect (IFE). The quenching kept constant after 30 s, and the quenching constants were 7.99 × 103 L.mol-1 and 4.13 × 103 L.mol-1, respectively. The detection limits of probe 3 for Cr2O72- and Fe3+ were 1.15 μmol.L-1 and 1.95 μmol.L-1, respectively, which were lower than the maximum allowable concentrations in drinking water stipulated by EPA. The determination results of Cr2O72- and Fe3+ in water samples indicated that probe 3 could be used as a potential detection tool in practical applications.
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Affiliation(s)
- Chuntian Shi
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434023, PR China
| | - Jiangxiong Luo
- College of Mechanical & Vehicle Engineering, Hunan University, Changsha 410082, PR China
| | - Yijun Wang
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434023, PR China
| | - Ling Ding
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434023, PR China
| | - Qingxiang Liang
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434023, PR China
| | - Zhihui Yang
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434023, PR China
| | - Jihao Lu
- School of Science, Tianjin Chengjian University, Tianjin 300392, PR China
| | - Aibin Wu
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434023, PR China.
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7
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Yang L, Wang D, Gong Y, Quan T, Tao Y, Liu S, Wang L, Wang J, Tian M, Gao D. Sulfuric acid induced-synthesis coupled with ethanol extraction-water precipitation purification method for orange fluorescent carbon dots with dual-emission: Application for methyl blue detection and cell imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 286:121963. [PMID: 36252300 DOI: 10.1016/j.saa.2022.121963] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
In this work, by adjusting the sulfuric acid content in reaction solvent of ethanol, orange fluorescent carbon dots (O-FCDs) with dual-emission wavelength and blue fluorescent carbon dots (B-FCDs) with single-emission wavelength were successfully prepared using 1,3-dihydroxynaphthalene as precursor. Coupling with ethanol extraction-water precipitation purification method, pure O-FCDs and B-FCDs with yields of 9.0 % and 21.3 %, quantum yields (QYs) of 43.0 % and 13.7 % were obtained, respectively. The structures and optical properties of O-FCDs and B-FCDs were investigated by TEM, AFM, Raman, FT-IR, XPS, UV-vis, fluorescence analysis etc. The results revealed that sulfuric acid promoted the carbonization and the oxidation of precursor in the reaction process. In comparison with the B-FCDs, O-FCDs showed narrower lattice spacing and band gap, demonstrating the important role of sulfur-doping in fluorescence tuning. Additionally, O-FCDs showed good sensitivity for methyl blue with a linear response range of 0.05-100 μM (LOD was 20 nM) and the satisfactory results were obtained when O-FCDs were applied to the detection of methyl blue in real fish sample. Moreover, two FCDs showed good biocompatibility and negligible cytotoxicity proved by MTT experiment, while, O-FCDs showed better cell imaging effects than that of B-FCDs. Therefore, the O-FCDs had a broad application prospect as sensing platform in detection of methyl blue and for imaging in biological field.
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Affiliation(s)
- Lijuan Yang
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Dandan Wang
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yingyu Gong
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Tian Quan
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yongqing Tao
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Shaochi Liu
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Luchun Wang
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Junji Wang
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Meng Tian
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Die Gao
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
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Wang B, Gu C, Jiao Y, Gao Y, Liu X, Guo J, Qian T. Novel preparation of red fluorescent carbon dots for tetracycline sensing and its application in trace determination. Talanta 2023; 253:123975. [PMID: 36228555 DOI: 10.1016/j.talanta.2022.123975] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/22/2022] [Accepted: 09/25/2022] [Indexed: 11/23/2022]
Abstract
The controllable design of red-emitting carbon dots and further exploration of their application in the trace determination of environmental pollutants remains a tremendous challenge. Herein, the novel strategy for red fluorescent carbon dots (R-CDs) with a higher quantum yield of 58.9% was proposed by doping small-molecule urea into the bio-dye of resazurin for the first time, which can retain the luminophore of precursors and exhibit exceptional optical, advantageous reversibility and outstanding photostability. Importantly, the R-CDs exhibit a remarkable fluorescence reduction towards tetracyclines (TCs) accompanied by a noticeable color change of R-CDs solution from red to yellow, which can realize the trace detection of TCs at strelatively low levels, including tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC). The linear range of TC, CTC, and OTC are 3-40 μM, 4-50 μM, and 2-50 μM, and the corresponding detection limits are 38.5 nM, 64.6 nM, and 45.4 nM, respectively (S/N = 3). Furthermore, the R-CDs demonstrate sensitivity to the physiological pH in the linear range of 4.0-5.0 and 5.0-6.2 with a pKa of 5.61. As a multifunctional fluorescent sensor, R-CDs can provide a new perspective for the preparation of long-wavelength CDs, and further realize the trace determination of environmental pollutants.
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Affiliation(s)
- Bingyan Wang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong, 030600, China
| | - Changxin Gu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong, 030600, China
| | - Yuan Jiao
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong, 030600, China
| | - Yifang Gao
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong, 030600, China
| | - Xiaona Liu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong, 030600, China
| | - Junmei Guo
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong, 030600, China
| | - Tianwei Qian
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong, 030600, China.
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Wu C, Zhang S, Zheng Y, Wang A, Zhao Q, Sun W, Liu W, Long C, Wang Q. Solvent-Type Passivation Strategy Controls Solid-State Self-Quenching-Resistant Behavior in Sulfur Dots. Inorg Chem 2022; 61:21157-21168. [PMID: 36520141 DOI: 10.1021/acs.inorgchem.2c04002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Treatment of sulfur dots with polyethylene glycol (PEG) has been an efficient way to achieve a high luminescence quantum yield, and such a PEG-related quantum dot (QD)-synthesis strategy has been well documented. However, the polymeric insulating capping layer acting as the "thick shell" will significantly slow down the electron-transfer efficiency and severely hamper its practical application in an optoelectric field. Especially, the employment of synthetic polymers with long alkyl chains or large molecular weights may lead to structural complexity or even unexpected changes of physical characteristics for QDs. Therefore, in sulfur dot preparation, it is a breakthrough to use short-chain molecular species to replace PEG for better control and reproducibility. In this article, a solvent-type passivation (STP) strategy has been reported, and no PEG or any other capping agent is required. The main role of the solvent, ethanol, is to directly react with NaOH, and the generated sodium ethoxide passivates the surface defects. The afforded STP-enhanced emission sulfur dots (STPEE-SDs) possess not only the self-quenching-resistant feature in the solid state but also the extension of fluorescence band toward the wavelength as long as 645 nm. The realization of sulfur dot emission in the deep-red region with a decent yield (8.7%) has never been reported. Moreover, a super large Stokes shift (300 nm, λex = 345 nm, λem = 645 nm) and a much longer decay lifetime (109 μs) have been found, and such values can facilitate to suppress the negative influence from background signals. Density functional theory demonstrates that the surface passivation via sodium ethoxide is dynamically favorable, and the spectroscopic insights into emission behavior could be derived from the passivation effect of the sulfur vacancy as well as the charge-transfer process dominated by the highly electronegative ethoxide layer.
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Affiliation(s)
- Chuqiao Wu
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou510006, China
| | - Shuting Zhang
- Department of Pharmacy, Huizhou Health Sciences Polytechnic, Huizhou516025, China
| | - Yuhui Zheng
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou510006, China
| | - Aiqi Wang
- Department of Pharmacy, Huizhou Health Sciences Polytechnic, Huizhou516025, China
| | - Qiming Zhao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan411201, China
| | - Wenjie Sun
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou510006, China
| | - Wanqiang Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan411201, China
| | - Chenggang Long
- Ruide Technologies (Foshan) Inc, Foshan, Guangdong528311, China
| | - Qianming Wang
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou510006, China
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10
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Yang Z, Xu T, Zhang S, Li H, Ji Y, Jia X, Li J. Multifunctional N,S-doped and methionine functionalized carbon dots for on-off-on Fe 3+ and ascorbic acid sensing, cell imaging, and fluorescent ink applying. NANO RESEARCH 2022; 16:5401-5411. [PMID: 36405981 PMCID: PMC9643953 DOI: 10.1007/s12274-022-5107-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/19/2022] [Accepted: 09/26/2022] [Indexed: 05/25/2023]
Abstract
Fluorescent carbon dots (CDs) have been identified as potential nanosensors and attracted tremendous research interests in wide areas including anti-counterfeiting, environmental and biological sensing and imaging in considering of the attractive optical properties. In this work, we present a CDs based fluorescent sensor from polyvinylpyrrolidone, citric acid, and methionine as precursors by hydrothermal approach. The selective quantifying of Fe3+ and ascorbic acid (AA) are based on the fluorescent on-off-on process, in which the fluorescent quenching is induced by the coordination of the Fe3+ on the surface of the CDs, while the fluorescence recovery is mainly attributed to redox reaction between Fe3+ and AA, breaking the coordination and bringing the fluorescence back. Inspired by the good water solubility and biocompatibility, significant photostability, superior photobleaching resistance as well as high selectivity, sensitivity, and interference immunity, which are constructed mainly from the N,S-doping and methionine surface functionalization, the CDs have not only been employed as fluorescence ink in multiple anti-counterfeiting printing and confidential document writing or transmitting, but also been developed as promising fluorescence sensors in solution and solid by CDs doped test strips and hydrogels for effectively monitoring and removing of Fe3+ and AA in environmental aqueous solution. The CDs have been also implemented as effective diagnostic candidates for imaging and tracking of Fe3+ and AA in living cells, accelerating the understanding of their function and importance in related biological processes for the prevention and treatment specific diseases. Electronic Supplementary Material Supplementary material (fluorescence spectra: UV and Xe irradiation, TG, thermo stability, ionic strength, relationship between fluorescence responses at different concentrations of Fe3+ and AA, reaction time-dependent fluorescent responses; XPS spectra of CDs + Fe3+ and Fe3+@CDs + AA; structural characterization; equations about fluorescence lifetime, quantum yield and LOD; comparison of the CDs for the detection of Fe3+ and AA with reported methods; detection of Fe3+ and AA in real samples; absorption of Fe3+ in environmental samples and MTT assay results) is available in the online version of this article at 10.1007/s12274-022-5107-7.
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Affiliation(s)
- Zheng Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, 710127 China
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an, 710054 China
- Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an, 710012 China
| | - Tiantian Xu
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an, 710054 China
| | - Shaobing Zhang
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an, 710054 China
| | - Hui Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, 710127 China
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an, 710054 China
| | - Yali Ji
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, 710127 China
| | - Xiaodan Jia
- College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an, 710054 China
- Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an, 710012 China
| | - Jianli Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, 710127 China
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11
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Jia Y, Wu S, Duan Z, Song S, Shuang S, Gong X, Dong C. A facile fluorescence platform for chromium and ascorbic acid detection based on "on-off-on" strategy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121343. [PMID: 35567825 DOI: 10.1016/j.saa.2022.121343] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 04/03/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
In this paper, a facile and rapid fluorescence "on-off-on" strategy for the detection of chromium (Cr(VI)) and ascorbic acid (AA) was developed, which was based on the water-soluble carbon dots (CDs). The CDs was synthesized by a microwave-assisted treatment of L-tartaric acid, citric acid, and urea. The CDs have many advantages, such as high fluorescence quantum yield (20.5%) and good fluorescence stability. Based on inner filter effect (IFE) and static quenching, the fluorescence of the CDs can be quenched by Cr(VI) quickly; while the reduction of IFE and reducing action can make the fluorescence of the CDs recover by AA efficiently. Moreover, under the optimal experimental conditions, the CDs had a good detection performance for Cr(VI) in the range of 0.8 ∼ 189 µM with the limit of detection (LOD) of 0.16 µM. The linear detection for AA was ranged from 0.43 to 25.7 µM with a LOD of 0.1 µM. More importantly, the as-constructed fluorescence detecting platform was successfully applied for Cr(VI) and AA detection in the environmental samples and fruit samples, respectively. In addition, the application potential of the CDs in fluorescent films and anti-counterfeiting materials was further discussed in detail. This work will provide a novel idea for designing a portable sensor based on the CDs to quickly and sensitively detect Cr(VI) and AA.
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Affiliation(s)
- Yanchun Jia
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China; School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, PR China
| | - Suling Wu
- Integrated Center for Inspection and Testing of Changzhi City, Changzhi 047199, PR China
| | - Zhengyi Duan
- Integrated Center for Inspection and Testing of Changzhi City, Changzhi 047199, PR China
| | - Shengmei Song
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China
| | - Shaomin Shuang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Xiaojuan Gong
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China.
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China.
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12
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González-González RB, Morales-Murillo MB, Martínez-Prado MA, Melchor-Martínez EM, Ahmed I, Bilal M, Parra-Saldívar R, Iqbal HMN. Carbon dots-based nanomaterials for fluorescent sensing of toxic elements in environmental samples: Strategies for enhanced performance. CHEMOSPHERE 2022; 300:134515. [PMID: 35398070 DOI: 10.1016/j.chemosphere.2022.134515] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/21/2022] [Accepted: 04/01/2022] [Indexed: 02/08/2023]
Abstract
Rapid industrialization and manufacturing expansion have caused heavy metal pollution, which is a critical environmental issue faced by global population. In addition, the disadvantages presented by conventional detection methods such as the requirement of sophisticated instruments and qualified personnel have led to the development of novel nanosensors. Recently, carbon dots (CDs) have been presented as a multifunctional nanomaterial alternative for the accurate detection of heavy metal ions in water systems. The capacity of CDs to detect contaminants in wastewater -including heavy metals- can be found in the literature; however, to the best of our knowledge, none of them discusses the most recent strategies to enhance their performance. Therefore, in this review, beyond presenting successful examples of the use of CDs for the detection of metal ions, we further discuss the strategies to enhance their photoluminescence properties and their performance for environmental monitoring. In this manner, strategies such as heteroatom-doping and surface passivation are reviewed in detail, as well as describing the mechanisms and the effect of precursors and synthesis methods. Finally, the current challenges are described in detail to propose some recommendations for further research.
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Affiliation(s)
| | - Martha Beatriz Morales-Murillo
- Tecnológico Nacional de México - Instituto Tecnológico de Durango, Chemical & Biochemical Engineering Department, Blvd. Felipe Pescador 1830 Ote., Durango, Dgo., 34080, Mexico
| | - María Adriana Martínez-Prado
- Tecnológico Nacional de México - Instituto Tecnológico de Durango, Chemical & Biochemical Engineering Department, Blvd. Felipe Pescador 1830 Ote., Durango, Dgo., 34080, Mexico
| | | | - Ishtiaq Ahmed
- School of Medical Science, Menzies Health Institute Queensland, Griffith University (Gold Coast campus), Parklands Drive, Southport, QLD, 4222, Australia
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China
| | | | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
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13
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Development of Fluorescent Carbon Nanoparticle-Based Probes for Intracellular pH and Hypochlorite Sensing. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10020064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Acid-base and redox reactions are important mechanisms that affect the optical properties of fluorescent probes. Fluorescent carbon nanoparticles (CNPs) that possess tailored surface functionality enable a prompt response to regional stimuli, offering a useful platform for detection, sensing, and imaging. In this study, mPA CNPs were developed through one-pot hydrothermal reaction as a novel fluorescent probe (quantum yield = 10%) for pH and hypochlorite sensing. m-Phenylenediamine was chosen as the major component of CNPs for pH and hypochlorite responsiveness. Meanwhile, ascorbic acid with many oxygen-containing groups was introduced to generate favorable functionalities for improved water solubility and enhanced sensing response. Thus, the mPA CNPs could serve as a pH probe and a turn-off sensor toward hypochlorite at neutral pH through fluorescence change. The as-prepared mPA CNPs exhibited a linear fluorescence response over the pH ranges from pH 5.5 to 8.5 (R2 = 0.989), and over the concentration range of 0.125–1.25 μM for hypochlorite (R2 = 0.985). The detection limit (LOD) of hypochlorite was calculated to be 0.029 μM at neutral pH. The mPA CNPs were further applied to the cell imaging. The positively charged surface and nanoscale dimension of the mPA CNPs lead to their efficient intracellular delivery. The mPA CNPs were also successfully used for cell imaging and sensitive detection of hypochlorite as well as pH changes in biological systems. Given these desirable performances, the as-synthesized fluorescent mPA CNPs shows great potential as an optical probe for real-time pH and hypochlorite monitoring in living cells.
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14
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Wu J, Chen G, Jia Y, Ji C, Wang Y, Zhou Y, Leblanc RM, Peng Z. Carbon dot composites for bioapplications: a review. J Mater Chem B 2022; 10:843-869. [DOI: 10.1039/d1tb02446a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent advancements in the synthesis of carbon dot composites and their applications in biomedical fields (bioimaging, drug delivery and biosensing) have been carefully summarized. The current challenges and future trends of CD composites in this field have also been discussed.
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Affiliation(s)
- Jiajia Wu
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Gonglin Chen
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Yinnong Jia
- Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, School of Pharmaceutical Sciences, Kunming Medical University, Kunming 650500, People's Republic of China
| | - Chunyu Ji
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Yuting Wang
- Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, School of Pharmaceutical Sciences, Kunming Medical University, Kunming 650500, People's Republic of China
| | - Yiqun Zhou
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, USA
| | - Roger M. Leblanc
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, USA
| | - Zhili Peng
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
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15
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Shi C, Yu M, Wu A, Luo J, Li X, Wang N, Shu W, Yu W. A Water-Soluble Naphthalimide-Based Fluorescent Probe for Specific Sensing of Fe 3+ and $\text{C}{{\text{r}}_{2}}\text{O}_{7}^{2-}$. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202204032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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16
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Wang X, Zhao Y, Wang T, Liang Y, Zhao X, Tang K, Guan Y, Wang H. Carboxyl-Rich Carbon Dots as Highly Selective and Sensitive Fluorescent Sensor for Detection of Fe 3+ in Water and Lactoferrin. Polymers (Basel) 2021; 13:4317. [PMID: 34960868 PMCID: PMC8706276 DOI: 10.3390/polym13244317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022] Open
Abstract
As lactoferrin (LF) plays an essential role in physiological processes, the detection of LF has attracted increasing attention in the field of disease diagnosis. However, most current methods require expensive equipment, laborious pretreatment, and long processing time. In this work, carboxyl-rich carbon dots (COOH-CDs) were facilely prepared through a one-step, low-cost hydrothermal process with tartaric acid as the precursor. The COOH-CDs had abundant carboxyl on the surface and showed strong blue emission. Moreover, COOH-CDs were used as a fluorescent sensor toward Fe3+ and showed high selectivity for Fe3+ with the limit of detection (LoD) of 3.18 nM. Density functional theory (DFT) calculations were performed to reveal the mechanism of excellent performance for Fe3+ detection. Meanwhile, COOH-CDs showed no obvious effect on lactobacillus plantarum growth, which means that COOH-CDs have good biocompatibility. Due to the nontoxicity and excellent detection performance for Fe3+, COOH-CDs were employed as a fluorescent sensor toward LF and showed satisfying performance with an LoD of 0.776 µg/mL, which was better than those of the other methods.
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Affiliation(s)
- Xinxin Wang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Y.Z.); (X.Z.); (Y.G.)
| | - Yanan Zhao
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Y.Z.); (X.Z.); (Y.G.)
| | - Ting Wang
- College of Biotechnology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (T.W.); (K.T.)
| | - Yan Liang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Y.Z.); (X.Z.); (Y.G.)
| | - Xiangzhong Zhao
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Y.Z.); (X.Z.); (Y.G.)
| | - Ke Tang
- College of Biotechnology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (T.W.); (K.T.)
| | - Yutong Guan
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Y.Z.); (X.Z.); (Y.G.)
| | - Hua Wang
- School of Materials Science and Engineering, Shandong University, Jinan 250061, China
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17
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Chang D, Zhao Z, Niu W, Shi L, Yang Y. Iron ion sensing and in vitro and in vivo imaging based on bright blue-fluorescent carbon dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 260:119964. [PMID: 34052767 DOI: 10.1016/j.saa.2021.119964] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/20/2021] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
Herein, we propose an eco-friendly synthesis of carbon dots (CDs) and ingeniously design a rapid and label-free "turn-off" sensing platform for ultrasensitive recognition of Fe3+ in vitro and in vivo. CDs with extraordinary advantages involving exceptional stability, ultra-low toxicity as well as admirable biocompatibility were simply prepared via one-step hydrothermal strategy of Caulis polygoni multiflora. Result indicated that as-acquired CDs not only exhibit excitation dependency, but also have a high quantum yield of (QY) up to 42%. Miraculously, the fluorescence of CDs can be extinguished sharply by Fe3+ because of static quenching effect with linear range of 0-400 µM, yielding a detection limit of 0.025 μM. Benefiting from these characteristics, CDs have been extended for multicolourful imaging and tracking Fe3+ fluctuations in living cells. Bioimaging of zebrafish larvae exposed to CDs confirmed that it is smoothly circulated to other tissues and organs owing to their small size. Eventually, as-prepared CDs have been implemented for the real-time detection of Fe3+ in nude mice.
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Affiliation(s)
- Dan Chang
- Department of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Zhonghua Zhao
- Institute of Biomedical Science, Shanxi University, Taiyuan 030006, China
| | - Wenjing Niu
- Department of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Lihong Shi
- Department of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Yongxing Yang
- Department of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
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18
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Li X, Bao Y, Dong X, Shi L, Shuang S. Dual-excitation and dual-emission carbon dots for Fe 3+ detection, temperature sensing, and lysosome targeting. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4246-4255. [PMID: 34591950 DOI: 10.1039/d1ay01165k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dual-excitation and dual-emission carbon dots (CDs) have been prepared by simple one-step hydrothermal treatment of p-phenylenediamine and 5-aminosalicylic acid. The as-prepared CDs emit bright green fluorescence under excitation at 320-400 nm and bright orange fluorescence under excitation at 490-560 nm. Interestingly, the CDs can be employed as a dual-excitation and dual-emission fluorescent probe for Fe3+ detection in aqueous solution and living cells. Furthermore, the obtained CDs can function as a promising dual-excitation and dual-emission temperature sensor. Additionally, the CDs can be utilized for lysosomal targeting.
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Affiliation(s)
- Xiaofeng Li
- Taiyuan University, Taiyuan 030012, PR China
| | - Yuejing Bao
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Xiaorui Dong
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Lihong Shi
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Shaomin Shuang
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
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19
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Kongsanan N, Pimsin N, Keawprom C, Sricharoen P, Areerob Y, Nuengmatcha P, Oh WC, Chanthai S, Limchoowong N. A Fluorescence Switching Sensor for Sensitive and Selective Detections of Cyanide and Ferricyanide Using Mercuric Cation-Graphene Quantum Dots. ACS OMEGA 2021; 6:14379-14393. [PMID: 34124460 PMCID: PMC8190883 DOI: 10.1021/acsomega.1c01242] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 05/13/2021] [Indexed: 05/11/2023]
Abstract
This study aims to use graphene quantum dots (GQDs) as a fluorescence switching sensor (turn on-off) for the simultaneous detection of cyanide (CN-) and ferricyanide [Fe(CN)6]3- in wastewater samples. The GQDs were synthesized by pyrolyzing solid citric acid. The intrinsic blue color of the solution was observed under ultraviolet irradiation. The fluorescence spectrum was maximized at both excitation and emission wavelengths of 370 and 460 nm, respectively. The fluorescence intensity of GQDs decorated with Hg2+ (turn-off mode as the starting baseline) could be selectively turned on in the presence of CN- and once back to turn-off mode by [Fe(CN)6]3-. The fluorescence switching properties were used to develop a fluorescence turn-on-off sensor that could be used to detect trace amounts of CN- and [Fe(CN)6]3- in water samples. For highly sensitive detection under optimum conditions (Britton-Robinson buffer solution in the pH range of 8.0-9.0, linearity ranges of 5.0-15.0 μM (R 2 = 0.9976) and 10.0-50.0 μM (R 2 = 0.9994), respectively, and detection limits of 3.10 and 9.48 μM, respectively), good recoveries in the ranges of 85.89-112.66% and 84.88-113.92% for CN- and [Fe(CN)6]3-, respectively, were recorded. The developed methods were successfully used for the simultaneous and selective detection of CN- and [Fe(CN)6]3- in wastewater samples obtained from local municipal water reservoirs.
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Affiliation(s)
- Niradchada Kongsanan
- Materials
Chemistry Research Center, Department of Chemistry and Center of Excellence
for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Nipaporn Pimsin
- Materials
Chemistry Research Center, Department of Chemistry and Center of Excellence
for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chayanee Keawprom
- Materials
Chemistry Research Center, Department of Chemistry and Center of Excellence
for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Phitchan Sricharoen
- Nuclear
Technology Research and Development Center, Thailand Institute of Nuclear Technology (Public Organization), Nakhon Nayok 26120, Thailand
| | - Yonrapach Areerob
- Department
of Industrial Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Prawit Nuengmatcha
- Nanomaterials
Chemistry Research Unit, Department of Chemistry, Faculty of Science
and Technology, Nakhon Si Thammarat Rajabhat
University, Nakhon
Si Thammarat 80280, Thailand
| | - Won-Chun Oh
- Department
of Advanced Materials Science and Engineering, Hanseo University, Seosan 31962, Chungnam, Republic of Korea
| | - Saksit Chanthai
- Materials
Chemistry Research Center, Department of Chemistry and Center of Excellence
for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Nunticha Limchoowong
- Department
of Chemistry, Faculty of Science, Srinakharinwirot
University, Bangkok 10110, Thailand
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20
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Lysosome-targeted carbon dots for colorimetric and fluorescent dual mode detection of iron ion, in vitro and in vivo imaging. Talanta 2021; 232:122423. [PMID: 34074409 DOI: 10.1016/j.talanta.2021.122423] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/03/2021] [Accepted: 04/08/2021] [Indexed: 01/29/2023]
Abstract
In this work, a colorimetric and fluorescent dual mode sensor based on lysosome-targeted CDs has been desirably implemented to identify Fe3+ fluctuations in vitro and in vivo. By simple one-pot hydrothermal carbonization of dried field mint, yellow-fluorescent CDs were directly fabricated without the assistance of other reagents and hold exceptional stability, superior biocompatibility as well as ultra-low cytotoxicity. Results indicated that as-prepared CDs can provide a rapid, reliable, and highly selective recognition of Fe3+ with a linear range of 0 μM-400 μM and a detection limit of 0.037 μM. Impressively, it was found that as-developed CDs can successfully target lysosome with high colocalization coefficient (0.85) and responds to fluctuations of Fe3+ in living cells. Further, acquired CDs was ingeniously devoted to Escherichia coli imaging. Besides, obtained CDs was eventually utilized to track the variation of Fe3+ in vivo system. A preliminary research expresses that as-synthesized CDs can function as an effective tool to detect Fe3+ in vitro and in vivo and thus indicates the promising applicability for disease detection in physiology and pathology in the future.
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