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Yang D, Jiang S, Zhang S, Fan X, Shao X, Wang S, Li R, Yue Q. Paper test strip for fluorescence detection of iron ion based on nitrogen, zinc and copper codoped carbon dots. Methods Appl Fluoresc 2023; 12:015006. [PMID: 37875096 DOI: 10.1088/2050-6120/ad0648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/24/2023] [Indexed: 10/26/2023]
Abstract
In this study, a test strip for fluorometric analysis of iron ion (Fe3+) was constructed based on nitrogen, zinc and copper codoped carbon dots (NZC-CDs) as fluorescence probes. NZC-CDs were synthesized by hydrothermal method. The morphology, size, components, crystal state and optical properties of NZC-CDs were characterized by transmission electron microscope (TEM), Fourier-transform infrared (FT-IR), x-ray photoelectron spectroscopy (XPS), x-ray diffraction (XRD), UV-vis absorption and fluorescence spectroscopy techniques, respectively. NZC-CDs exhibited bright blue fluorescence under UV lamp with a quantum yield at 17.76%. The fluorescence of NZC-CDs was quenched by Fe3+possibly due to the static quenching. The possible fluorescence quenching mechanism was also discussed. The quenching fluorescence was linear with the concentration of Fe3+in the range of 2.5-400μM with a low detection limit of 0.5μM. For the convenient detection, the test strips based on filter paper were employed for Fe3+assay. Moreover, the present approach was successfully applied in the determination of Fe3+in real samples including black fungus, duck blood and pork liver. The sensing method had the potential application in more food analysis.
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Affiliation(s)
- Dou Yang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Shuhan Jiang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Shuai Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Xiaoyu Fan
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Xiaodong Shao
- State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute, Xi'an 710077, People's Republic of China
| | - Shuhao Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Rui Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Qiaoli Yue
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
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Sawalha S, Abdallah S, Barham A, Badawi H, Barham Z, Ghareeb A, Misia G, Collavini S, Silvestri A, Prato M, Assali M. Green synthesis of fluorescent carbon nanodots from sage leaves for selective anticancer activity on 2D liver cancer cells and 3D multicellular tumor spheroids. NANOSCALE ADVANCES 2023; 5:5974-5982. [PMID: 37881717 PMCID: PMC10597557 DOI: 10.1039/d3na00269a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 09/17/2023] [Indexed: 10/27/2023]
Abstract
Carbon nanodots, a family of carbon-based nanomaterials, have been synthesized through different methods from various resources, affecting the properties of the resulting product and their application. Herein, carbon nanodots (CNDs) were synthesized with a green and simple hydrothermal method from sage leaves at 200 °C for 6 hours. The obtained CNDs are well dispersed in water with a negative surface charge (ζ-potential = -11 mV) and an average particle size of 3.6 nm. The synthesized CNDs showed concentration-dependent anticancer activity toward liver cancer (Hep3B) cell lines and decreased the viability of the cancer cells to 23% at the highest used concentration (250 μg ml-1 of CNDs). More interestingly, the cytotoxicity of the CNDs was tested in normal liver cell lines (LX2) revealed that the CNDs at all tested concentrations didn't affect their viability including at the highest concentration showing a viability of 86.7%. The cellular uptake mechanisms of CNDs were investigated and they are thought to be through energy-dependent endocytosis and also through passive diffusion. The main mechanisms of endocytosis were lipid and caveolae-mediated endocytosis. In addition, the CNDs have hindered the formation of 3D spheroids from the Hep3B hepatocellular carcinoma cell line. Hence, it would be concluded that the synthesized CNDs from sage are more highly selective to liver cancer cells than normal ones. The CNDs' cancer-killing ability would be referred to as the production of reactive oxygen species.
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Affiliation(s)
- Shadi Sawalha
- Chemical Engineering Program, Faculty of Engineering and Information Technology, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Samer Abdallah
- Department of Biology and Biotechnology, Faculty of Science, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Amal Barham
- Chemical Engineering Program, Faculty of Engineering and Information Technology, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Hala Badawi
- Chemical Engineering Program, Faculty of Engineering and Information Technology, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Zeina Barham
- Chemical Engineering Program, Faculty of Engineering and Information Technology, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Ahmad Ghareeb
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Giuseppe Misia
- Department of Chemical and Pharmaceutical Sciences INSTM UdR Trieste, University of Trieste via Licio Giorgieri 1 34127 Trieste Italy
| | - Silvia Collavini
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA) Donostia-San Sebastián 20014 Spain
| | - Alessandro Silvestri
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice Venezia 30170 Italy
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences INSTM UdR Trieste, University of Trieste via Licio Giorgieri 1 34127 Trieste Italy
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA) Donostia-San Sebastián 20014 Spain
| | - Mohyeddin Assali
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University P.O. Box 7 Nablus Palestine
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Zhai Y, Li S, Li J, Liu S, James TD, Sessler JL, Chen Z. Room temperature phosphorescence from natural wood activated by external chloride anion treatment. Nat Commun 2023; 14:2614. [PMID: 37147300 PMCID: PMC10162966 DOI: 10.1038/s41467-023-37762-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 03/30/2023] [Indexed: 05/07/2023] Open
Abstract
Producing afterglow room temperature phosphorescence (RTP) from natural sources is an attractive approach to sustainable RTP materials. However, converting natural resources to RTP materials often requires toxic reagents or complex processing. Here we report that natural wood may be converted into a viable RTP material by treating with magnesium chloride. Specifically, immersing natural wood into an aqueous MgCl2 solution at room temperature produces so-called C-wood containing chloride anions that act to promote spin orbit coupling (SOC) and increase the RTP lifetime. Produced in this manner, C-wood exhibits an intense RTP emission with a lifetime of ~ 297 ms (vs. the ca. 17.5 ms seen for natural wood). As a demonstration of potential utility, an afterglow wood sculpture is prepared in situ by simply spraying the original sculpture with a MgCl2 solution. C-wood was also mixed with polypropylene (PP) to generate printable afterglow fibers suitable for the fabrication of luminescent plastics via 3D printing. We anticipate that the present study will facilitate the development of sustainable RTP materials.
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Affiliation(s)
- Yingxiang Zhai
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Shujun Li
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China.
| | - Jian Li
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Shouxin Liu
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Tony D James
- Department of Chemistry, University of Bath, Bath, BA2 7AY, UK.
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China.
| | - Jonathan L Sessler
- Department of Chemistry, University of Texas at Austin, 105 E 24th Street, A5300, Austin, TX, USA.
| | - Zhijun Chen
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China.
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Cui X, Lei T, Zhang J, Chen Z, Luo H, Chen H, He Y, Song G. Smartphone-assisted miniature device based on nitrogen and sulfur co-doped carbon dots for point-of-care testing of tetracycline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 283:121727. [PMID: 35998426 DOI: 10.1016/j.saa.2022.121727] [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: 05/10/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
A miniature device was design for the point-of-care testing (POCT) of tetracycline (TC) including a ratio fluorescence test strip, a sample slot, a UV lamp and a smartphone. The nitrogen and sulfur co-doped carbon dots (N, S-CDs) and Eu3+ were dropped onto the filter paper to construct the ratio fluorescence test strips for the specific detection of TC. Under the excitation at 390 nm, the fluorescence emission of N, S-CDs at 530 nm decreases through inner filter effect (IEF) after addition of Eu3+. When the further addition of TC, the emission of N, S-CDs at 530 nm kept unchanged while the emission of Eu3+ at 616 nm was obviously enhanced for the antenna effect (AE) between Eu3+ and TC. The ratio changes of the two-fluorescence emission realized the quantitative detection of TC. In addition, the test strips with different concentrations of TC showed different fluorescence color from green to red under a 365 nm UV lamp. The miniature device was designed as a fluorescence photo reader with the merits of the powerful functions of smartphones and the portability of test strips. The smartphone camera takes a fluorescent color image of the test strips and the photos are recognized by a color recognizer on the smartphone to obtain RGB (red-greenblue) values which reflect the concentrations of the analytes. Therefore, we established a fast, sensitive and efficient POCT of TC. In particular, the proposed nanomaterial-based POCT platform will open a new route towards the development of ratio fluorescence probe for TC analysis for environment samples.
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Affiliation(s)
- Xipeng Cui
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Tiantian Lei
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Juan Zhang
- Hubei Light Industry Institute of Research & Design Co., Ltd, No. 1 Yangsigang Road, Hanyang District 430052, Wuhan, Hubei, China
| | - Zifan Chen
- Hubei Light Industry Institute of Research & Design Co., Ltd, No. 1 Yangsigang Road, Hanyang District 430052, Wuhan, Hubei, China
| | - Hong Luo
- Hubei Light Industry Institute of Research & Design Co., Ltd, No. 1 Yangsigang Road, Hanyang District 430052, Wuhan, Hubei, China
| | - Hui Chen
- Hubei Light Industry Institute of Research & Design Co., Ltd, No. 1 Yangsigang Road, Hanyang District 430052, Wuhan, Hubei, China
| | - Yu He
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
| | - Gongwu Song
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
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Hu J, Sun Y, Aryee AA, Qu L, Zhang K, Li Z. Mechanisms for carbon dots-based chemosensing, biosensing, and bioimaging: A review. Anal Chim Acta 2022; 1209:338885. [PMID: 35569838 DOI: 10.1016/j.aca.2021.338885] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 01/04/2023]
Abstract
Due to the favorable biocompatibility, photostability and fluorescence emissions, carbon dots (CDs) are being widely investigated as fluorescent probes. Current CD-based fluorescent probe designs depend largely on conventional fluorescence sensing mechanisms, for e.g. the inner filter effect, photoinduced electron transfer, and Förster resonance energy transfer. Although these mechanisms have been successful, it is still desirable to introduce new sensing mechanisms. In recent years, emerging mechanisms such as aggregation-induced emission, hydrogen-bond induced emission, and intramolecular charge transfer have been developed for CD-based probes. This review summarizes both conventional and emerging mechanisms, and discuss CDs in the context of chemosensing, biosensing, and bioimaging. We provide an outlook for several other mechanisms such as CN isomerization, the short-wavelength inner filter technique, excited-state intramolecular proton transfer, and twisted intramolecular charge transfer, which have been applied to organic fluorescent probes design but not as much in CD-based sensing systems. We envision that this review will provide insights that inspire further development of CD-based fluorescent probes as for biological applications.
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Affiliation(s)
- Jingyu Hu
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Yuanqiang Sun
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Aaron Albert Aryee
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Lingbo Qu
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Ke Zhang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA
| | - Zhaohui Li
- Institute of Chemical Biology and Clinical Application at the First Affiliated Hospital, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China.
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Sun L, Wei W, Zhang H, Xu J, Zhao X. A simple colorimetric and fluorescent “on-off-on” dual-mode sensor based on cyan fluorescent carbon dots/AuNPs for the detection of L-cysteine and Zinc thiazole. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107079] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Wang P, Zhang Y, Liu Y, Pang X, Liu P, Dong WF, Mei Q, Qian Q, Li L, Yan R. Starch-Based Carbon Dots for Nitrite and Sulfite Detection. Front Chem 2021; 9:782238. [PMID: 34805100 PMCID: PMC8602874 DOI: 10.3389/fchem.2021.782238] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 10/19/2021] [Indexed: 12/26/2022] Open
Abstract
Nitrite and sulfite play important roles in human health and environmental science, so it is desired to develop a facile and efficient method to evaluate NO2 - and SO3 2- concentrations. In this article, the use of green alternatives with the potential of multi-functionality has been synthesized to detect nitrite and sulfite based on fluorescent probe. The carbon dots (CDs) with starch as only raw materials show fluorescence turn "on-off-on" response towards NO2 - and SO3 2- with the limits of detection of 0.425 and 0.243 μМ, respectively. Once nitrite was present in the solution, the fluorescence of CDs was quenched rapidly due to the charge transfer. When sulfite was introduced, the quenching fluorescence of CDs was effectively recovered because of the redox reaction between NO2 - and SO3 2-, and thus providing a new way for NO2 - and SO3 2- detection. Owing to their excellent analytical characteristics and low cytotoxicity, the "on-off-on" sensor was successfully employed for intracellular bioimaging of NO2 - and SO3 2-.
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Affiliation(s)
- Panyong Wang
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yan Zhang
- The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, China
| | - Yulu Liu
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), Suzhou, China
| | - Xinpei Pang
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), Suzhou, China
| | - Pai Liu
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), Suzhou, China
| | - Wen-Fei Dong
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), Suzhou, China
- Jinan Guokeyigong Science and Technology Development Co., Ltd, Jinan, China
| | - Qian Mei
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), Suzhou, China
- Jinan Guokeyigong Science and Technology Development Co., Ltd, Jinan, China
| | - Qing Qian
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), Suzhou, China
| | - Li Li
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), Suzhou, China
| | - Ruhong Yan
- The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, China
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8
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Investigation of layered double hydroxide/carbon dot nanocomposite on removal efficiency of Pb2+ from aqueous solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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9
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Huang M, Yong L, Xu J, Zuo Y, Yi Z, Liu H. Determinants of Adenosine A
2A
Receptors‐Perfluoroalkyl Sulfonates Complex: Multi‐Spectroscopic and Molecular Dynamics Simulation Study. ChemistrySelect 2021. [DOI: 10.1002/slct.202100863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Manting Huang
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 China
| | - Li Yong
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 China
| | - Jie Xu
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 China
| | - Yanqiu Zuo
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 China
| | - Zhongsheng Yi
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 China
| | - Hongyan Liu
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 China
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Bruno F, Sciortino A, Buscarino G, Soriano ML, Ríos Á, Cannas M, Gelardi F, Messina F, Agnello S. A Comparative Study of Top-Down and Bottom-Up Carbon Nanodots and Their Interaction with Mercury Ions. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1265. [PMID: 34065804 PMCID: PMC8151150 DOI: 10.3390/nano11051265] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/08/2021] [Accepted: 05/10/2021] [Indexed: 12/11/2022]
Abstract
We report a study of carbon dots produced via bottom-up and top-down routes, carried out through a multi-technique approach based on steady-state fluorescence and absorption, time-resolved fluorescence spectroscopy, Raman spectroscopy, infrared spectroscopy, and atomic force microscopy. Our study focuses on a side-to-side comparison of the fundamental structural and optical properties of the two families of fluorescent nanoparticles, and on their interaction pathways with mercury ions, which we use as a probe of surface emissive chromophores. Comparison between the two families of carbon dots, and between carbon dots subjected to different functionalization procedures, readily identifies a few key structural and optical properties apparently common to all types of carbon dots, but also highlights some critical differences in the optical response and in the microscopic mechanism responsible of the fluorescence. The results also provide suggestions on the most likely interaction sites of mercury ions at the surface of carbon dots and reveal details on mercury-induced fluorescence quenching that can be practically exploited to optimize sensing applications of carbon dots.
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Affiliation(s)
- Federico Bruno
- Dipartimento di Fisica e Chimica—Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (F.B.); (A.S.); (G.B.); (M.C.); (F.G.)
| | - Alice Sciortino
- Dipartimento di Fisica e Chimica—Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (F.B.); (A.S.); (G.B.); (M.C.); (F.G.)
| | - Gianpiero Buscarino
- Dipartimento di Fisica e Chimica—Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (F.B.); (A.S.); (G.B.); (M.C.); (F.G.)
- Advanced Technologies Network Center, Università degli Studi di Palermo, Viale delle Scienze Ed. 18/A, 90128 Palermo, Italy
| | - Maria Laura Soriano
- Department of Analytical Chemistry and Food Technology, Faculty of Chemical Science and Technology, University of Castilla-La Mancha, 13071 Ciudad Real, Spain;
| | - Ángel Ríos
- Department of Analytical Chemistry and Food Technology, Faculty of Chemical Science and Technology, University of Castilla-La Mancha, 13071 Ciudad Real, Spain;
- Regional Institute for Applied Chemistry Research (IRICA), 13071 Ciudad Real, Spain
| | - Marco Cannas
- Dipartimento di Fisica e Chimica—Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (F.B.); (A.S.); (G.B.); (M.C.); (F.G.)
| | - Franco Gelardi
- Dipartimento di Fisica e Chimica—Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (F.B.); (A.S.); (G.B.); (M.C.); (F.G.)
| | - Fabrizio Messina
- Dipartimento di Fisica e Chimica—Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (F.B.); (A.S.); (G.B.); (M.C.); (F.G.)
- Advanced Technologies Network Center, Università degli Studi di Palermo, Viale delle Scienze Ed. 18/A, 90128 Palermo, Italy
| | - Simonpietro Agnello
- Dipartimento di Fisica e Chimica—Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy; (F.B.); (A.S.); (G.B.); (M.C.); (F.G.)
- Advanced Technologies Network Center, Università degli Studi di Palermo, Viale delle Scienze Ed. 18/A, 90128 Palermo, Italy
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Sun L, Zhang H, Wang Y, Xiong Z, Zhao X, Xia Y. Chitosan-derived N-doped carbon dots for fluorescent determination of nitrite and bacteria imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 251:119468. [PMID: 33508683 DOI: 10.1016/j.saa.2021.119468] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/09/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
N-doped carbon dots (N-CDs) were successfully synthesized via simple one-step hydrothermal carbonization using chitosan as carbon and nitrogen sources. The obtained N-CDs contained a variety of functional groups on the NCDs surface, and exhibited excitation-independent behavior and strong blue fluorescence with a relatively higher fluorescence quantum yield (QY = 35%). It also presented excellent water solubility, resistance to pH change, high ion strength and UV irradiation. Since the fluorescence of the N-CDs could be selectively quenched by NO2-, they could act as a fluorescent sensor for the determination of NO2- in real tap water and lake water samples with a wide linear range (1-500 μM) and low detection limit (0.1 μM). They could also be used for bacterial imaging as multicolor fluorescent probes. The results indicated that N-CDs could be a promising candidate material for biomedical applications.
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Affiliation(s)
- Lili Sun
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Hongmei Zhang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Yesheng Wang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Zhong Xiong
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
| | - Xihui Zhao
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China.
| | - Yanzhi Xia
- State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
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Rong M, Wang D, Li Y, Zhang Y, Huang H, Liu R, Deng X. Green-Emitting Carbon Dots as Fluorescent Probe for Nitrite Detection. JOURNAL OF ANALYSIS AND TESTING 2021. [DOI: 10.1007/s41664-021-00161-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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13
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Selective Determination of Dopamine in Pharmaceuticals and Human Urine Using Carbon Quantum Dots as a Fluorescent Probe. Processes (Basel) 2021. [DOI: 10.3390/pr9010170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A cost-effective and environmentally friendly method was formulated for rapid dopamine (DA) detection that was based on the fluorescence (FL) quenching of carbon quantum dots (C-dots). Upon adding DA to the C-dots’ solution, we noticed a regular reduction in their fluorescence intensity. The effects of pH, amount of C-dots, reaction temperature and time on the determination of DA were investigated. Under the optimized experimental conditions, trace amounts of DA could be analyzed. Furthermore, dopamine hydrochloride injection and human urine samples with and without spiked DA were analyzed using the developed sensing system. The procedure was validated following the guidelines of the European Medicines Agency (EMA) in terms of the following: calibration range (0.3–100 μM), linearity (R2 = 0.9991), limit of detection (LOD) (93 nM). Recoveries of dopamine with spiked samples at three different levels were between 95.0 and 105.9%, and the relative standard deviations (RSDs) were within 2.68% (n = 6). This method is simple and suitable for the determination of dopamine in pharmaceuticals and human urine for clinical application. Compared with previous reports, the proposed method offers great advantages including ease of C-dot sensor preparation (one-pot synthesis), environmentally friendly sample preparation by using either water or phosphate buffer solution only, a short response time and selectivity.
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14
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Wang H, Jing X, Bi X, Bai B, Wang X. Quantitative Detection of Nitrite in Food Samples Based on Digital Image Colourimetry by Smartphone. ChemistrySelect 2020. [DOI: 10.1002/slct.202002406] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Huihui Wang
- College of Food Science and Engineering Shanxi Agricultural University Taigu Shanxi 030801 P.R. China
| | - Xu Jing
- College of Food Science and Engineering Shanxi Agricultural University Taigu Shanxi 030801 P.R. China
| | - Xinyuan Bi
- Institute of Agricultural Resources and Economics Shanxi Agricultural University Taiyuan Shanxi 030006 P.R. China
| | - Bing Bai
- Institute of Forensic Science Public Security Bureau of Linfen Linfen Shanxi 041000 P.R. China
| | - Xiaowen Wang
- College of Food Science and Engineering Shanxi Agricultural University Taigu Shanxi 030801 P.R. China
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15
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Li L, Shi L, Jia J, Jiao Y, Gao Y, Liu Y, Dong C, Shuang S. "On-off-on" detection of Fe 3+ and F -, biological imaging, and its logic gate operation based on excitation-independent blue-fluorescent carbon dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117716. [PMID: 31707023 DOI: 10.1016/j.saa.2019.117716] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/08/2019] [Accepted: 10/26/2019] [Indexed: 05/21/2023]
Abstract
A fluorescent nanoprobe based on carbon dots (CDs) has been facilely synthesized by a one-step hydrothermal pyrolysis of salicylic acid and utilized for the sequential detection of Fe3+ and F- in vitro. The fluorescence of CDs can be extinguished dramatically by Fe3+ based on static quenching and subsequently recovery upon addition of F- due to the formation of stabler FeF3. The probe exhibits high selectivity and sensitivity toward Fe3+ and F- with a good linearity in the range of 10-300 μM and 0.1-200 μM, respectively, and a low detection limit of 52 nM and 8.5 nM, respectively. More importantly, as-prepared CDs with exceedingly fluorescence stability, negligible toxicity and superior biocompatibility have been expanded for detection Fe3+ and F- in living cell and Escherichia coli. Furthermore, an "AND" logic gate based on as-obtained CDs has been constructed.
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Affiliation(s)
- Lin Li
- Department of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan, 030006, China
| | - Lihong Shi
- Department of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan, 030006, China.
| | - Jing Jia
- Department of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan, 030006, China
| | - Yuan Jiao
- Department of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan, 030006, China
| | - Yifang Gao
- Department of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan, 030006, China
| | - Yang Liu
- College of Science and Engineering, James Cook University, Townsville, Queensland, 4811, Australia
| | - Chuan Dong
- Department of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan, 030006, China
| | - Shaomin Shuang
- Department of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan, 030006, China.
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16
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Jia J, Lu W, Li L, Gao Y, Jiao Y, Han H, Dong C, Shuang S. Orange-emitting N-doped carbon dots as fluorescent and colorimetric dual-mode probes for nitrite detection and cellular imaging. J Mater Chem B 2020; 8:2123-2127. [DOI: 10.1039/c9tb02934f] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel orange-emitting N-doped carbon dots (N-CDs) were prepared as fluorescent and colorimetric dual-mode probes for sensing nitrite (NO2−).
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Affiliation(s)
- Jing Jia
- College of Chemistry and Chemical Engineering, and Institute of Environmental Science
- Shanxi University
- Taiyuan
- China
| | - Wenjing Lu
- College of Chemistry and Chemical Engineering, and Institute of Environmental Science
- Shanxi University
- Taiyuan
- China
| | - Lin Li
- College of Chemistry and Chemical Engineering, and Institute of Environmental Science
- Shanxi University
- Taiyuan
- China
| | - Yifang Gao
- College of Chemistry and Chemical Engineering, and Institute of Environmental Science
- Shanxi University
- Taiyuan
- China
| | - Yuan Jiao
- College of Chemistry and Chemical Engineering, and Institute of Environmental Science
- Shanxi University
- Taiyuan
- China
| | - Hui Han
- College of Chemistry and Chemical Engineering, and Institute of Environmental Science
- Shanxi University
- Taiyuan
- China
| | - Chuan Dong
- College of Chemistry and Chemical Engineering, and Institute of Environmental Science
- Shanxi University
- Taiyuan
- China
| | - Shaomin Shuang
- College of Chemistry and Chemical Engineering, and Institute of Environmental Science
- Shanxi University
- Taiyuan
- China
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17
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Kong Y, Cheng Q, He Y, Ge Y, Zhou J, Song G. A dual-modal fluorometric and colorimetric nanoprobe based on graphitic carbon nitrite quantum dots and Fe (II)-bathophenanthroline complex for detection of nitrite in sausage and water. Food Chem 2019; 312:126089. [PMID: 31896452 DOI: 10.1016/j.foodchem.2019.126089] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/26/2019] [Accepted: 12/18/2019] [Indexed: 12/14/2022]
Abstract
A fluorometric and colorimetric dual-mode sensing platform based on graphitic carbon nitrite quantum dots (g-CNQDs) and Fe (II)-bathophenanthroline complex (BPS-Fe2+) was designed to the sensitive detection of nitrite (NO2-) in sausage and water. In this system, the fluorescence of g-CNQDs was quenched by BPS-Fe2+ complex due to the inner filter effect (IFE). When NO2- was present, Fe2+ was oxidized by nitrite to form BPS-Fe3+ complex with BPS, leading to the recovery of the fluorescence from g-CNQDs. Therefore, we constructed a "turn-off-on" fluorescence probe for detection of NO2-. Moreover, with the increase of NO2- concentration, the color of the solution changed from red to colorless, so the UV-vis measurements and on-site visual detection were realized. The method is capable of detecting NO2- in the concentration range of 2.32-34.8 μM with good selectivity and high sensitivity. In addition, the method has the potential to determine NO2- in water samples and sausage samples.
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Affiliation(s)
- Yuelin Kong
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Qiao Cheng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yu He
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China; Hubei Province Key Laboratory of Regional Development and Environment Response, Wuhan 430062, China.
| | - Yili Ge
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Jiangang Zhou
- Hubei Province Key Laboratory of Regional Development and Environment Response, Wuhan 430062, China
| | - Gongwu Song
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
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18
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Lin SL, Hsu JW, Fuh MR. Simultaneous determination of nitrate and nitrite in vegetables by poly(vinylimidazole-co-ethylene dimethacrylate) monolithic capillary liquid chromatography with UV detection. Talanta 2019; 205:120082. [DOI: 10.1016/j.talanta.2019.06.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/21/2019] [Accepted: 06/21/2019] [Indexed: 01/31/2023]
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19
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Arvapalli DM, Sheardy AT, Alapati KC, Wei J. High Quantum Yield Fluorescent Carbon Nanodots for detection of Fe (III) Ions and Electrochemical Study of Quenching Mechanism. Talanta 2019; 209:120538. [PMID: 31892023 DOI: 10.1016/j.talanta.2019.120538] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 10/25/2019] [Accepted: 11/03/2019] [Indexed: 01/19/2023]
Abstract
Carbon nanodots (CNDs) offer potential applications in photocatalysis, optoelectronics, bio-imaging, and sensing due to their excellent photoluminescence (PL) properties, biocompatibility, aqueous solubility, and easy functionalization. Recent emphasis on CNDs in the selective detection of metal ions is due to the growing concern for human and environmental safety. In this work, two types of fluorescent carbon nanodots (CNDs) are synthesized economically from ethylene diamine (E-CNDs) or urea (U-CNDs) in a single step microwave process. The as-prepared CNDs exhibit excellent PL at an excitation wavelength of 350 nm with a quantum yield of 64% for E-CNDs and 8.4% for U-CNDs with reference to quinine sulfate. Both E-CNDs and U-CNDs demonstrate high selectivity towards Fe (III) ions among different metal ions, by fluorescence quenching in a dose dependent manner. The limit of detection of E-CNDs and U-CNDs is observed to be 18 nM and 30 nM, respectively, in the linear response range of 0-2000 μM with a short response time (seconds). The CNDs detect Fe (III) ions in tap water and serum sample with no spiking and the recovery was ~100% with the Fe (III) samples. Cellular internalization studies confirm the localization of the CNDs and the optical imaging sensing of Fe (III) ions inside living cells. A charge transfer fluorescence quenching mechanism, specifically between the CNDs and Fe (III), is proposed and examined using cyclic voltammetry. The overall characteristics of the E-CNDs provides a potential sensing platform in highly sensitive and selective detection of Fe (III) ions.
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Affiliation(s)
- Durga M Arvapalli
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC, 27401, USA
| | - Alex T Sheardy
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC, 27401, USA
| | - Kalyan C Alapati
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC, 27401, USA
| | - Jianjun Wei
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC, 27401, USA.
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20
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Wang S, Chu X, Xiang X, Cao Y. Highly selective antenna effect of graphene quantum dots (GQDs): A new fluorescent sensitizer for rare earth element terbium in aqueous media. Talanta 2019; 209:120504. [PMID: 31892072 DOI: 10.1016/j.talanta.2019.120504] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 12/11/2022]
Abstract
This study focused on the fluorescence antenna-sensitizing effect of graphene quantum dots (GQDs) in a case on the detection of terbium ions. A simple one-step chemical oxidation method was applied for the preparation of GQDs starting from the regular multilayer graphene oxide (GO) via the refluxing in a concentrated mixture of strong acids. The as-prepared GQDs were further evaluated as a fluorescent sensitizer to the terbium ion. An expanded in-deep mechanism study on the fluorescence phenomena during the interaction of the as-prepared GQDs and REEs was made. The highly selective antenna effect of GQDs on one of REEs' aqueous media, which was terbium (III), was identified. The excited terbium ion emitted its long-living fluorescence based on its own characteristic line-typed f-f transition, contrasting to a undetectable fluorescence in a very poor quantum yield in its aqueous solution induced by water collisions. This study, in the first place, identified the significant sensitization effect of the as-prepared GQDs on the terbium ion in a high selectivity in aqueous media. The detectable linear range and the detection limit of the terbium ion was 0-30 × 10-6 mol L-1 (R2 = 0.9960) of 0.3 × 10-6 mol L-1, respectively. The excitation wavelength and the optimal fluorescence wavelength were 230 nm 546 nm, respectively. Further material characterizations, involving XPS, FTIR, Raman and the Zeta potential, verified the important participation of carboxyl function groups on the as-prepared GQDs.
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Affiliation(s)
- Shengnan Wang
- College of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China
| | - Xu Chu
- College of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China
| | - Xiaoyan Xiang
- College of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China
| | - Yan Cao
- College of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China; Institute for Combustion Science and Environmental Technology, Department of Chemistry, Western Kentucky University, Bowling Green, KY, 42101, USA.
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21
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Pang LF, Wu H, Fu MJ, Guo XF, Wang H. Red emissive boron and nitrogen co-doped “on-off-on” carbon dots for detecting and imaging of mercury(II) and biothiols. Mikrochim Acta 2019; 186:708. [DOI: 10.1007/s00604-019-3852-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 09/17/2019] [Indexed: 01/06/2023]
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22
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Synthesized carbon nanodots for simultaneous extraction of personal care products and organophosphorus pesticides in wastewater samples prior to LC-MS/MS determination. Anal Bioanal Chem 2019; 411:6173-6187. [DOI: 10.1007/s00216-019-02009-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/20/2019] [Accepted: 07/01/2019] [Indexed: 10/26/2022]
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23
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Orange Luminescent Carbon Dots as Fluorescent Probe for Detection of Nitrite. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61155-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Sheta SM, El-Sheikh SM, Abd-Elzaher MM, Wassel AR. A novel nano-size lanthanum metal-organic framework based on 5-amino-isophthalic acid and phenylenediamine: Photoluminescence study and sensing applications. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4777] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sheta M. Sheta
- Inorganic Chemistry Department; National Research Centre; 33 El-Behouth St., Dokki Giza 12622 Egypt
| | - Said M. El-Sheikh
- Nanomaterials and Nanotechnology Department; Central Metallurgical R & D Institute; Cairo 11421 Egypt
| | - Mohkles M. Abd-Elzaher
- Inorganic Chemistry Department; National Research Centre; 33 El-Behouth St., Dokki Giza 12622 Egypt
| | - Ahmed R. Wassel
- Electron Microscope & Thin films Department, Physics Division; National Research Centre; 33 El-Behouth St., Dokki Giza 12622 Egypt
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25
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Liu H, Zhang Y, Zhang D, Zheng F, Huang M, Sun J, Sun X, Li H, Wang J, Sun B. A fluorescent nanoprobe for 4-ethylguaiacol based on the use of a molecularly imprinted polymer doped with a covalent organic framework grafted onto carbon nanodots. Mikrochim Acta 2019; 186:182. [DOI: 10.1007/s00604-019-3306-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 02/04/2019] [Indexed: 12/22/2022]
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26
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Rapid cancer diagnosis by highly fluorescent carbon nanodots-based imaging. Anal Bioanal Chem 2019; 411:967-972. [PMID: 30604036 DOI: 10.1007/s00216-018-1500-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/28/2018] [Accepted: 11/15/2018] [Indexed: 02/07/2023]
Abstract
Carbon dots (Cdots) with bright green fluorescence were applied to the rapid and selective cell imaging for a variety of cell lines. Different labeling distributions of hepatoma cells (HepG2) and normal human liver cells (LO2) were achieved using Cdots as imaging agents. For HepG2 cells, the Cdots could rapidly permeate the cell membrane and diffuse into the cytoplasm and nucleus within 3 min, and retained their location in the targets for 24 h. However, the Cdots exhibited bright fluorescence only in the cytoplasm of LO2 cell lines. Moreover, the Cdots were almost non-cytotoxic and exhibited superior photostability over a wide range of pH. Therefore, these Cdots have great potential for rapid, luminous and selective bioimaging applications, and are expected to be used as a nucleus-staining agent in cancer diagnosis. Graphical abstract ᅟ.
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27
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Shi L, Chang D, Zhang G, Zhang C, Zhang Y, Dong C, Chu L, Shuang S. Co2+ detection, cell imaging, and temperature sensing based on excitation-independent green-fluorescent N-doped carbon dots. RSC Adv 2019; 9:41361-41367. [PMID: 35540082 PMCID: PMC9076455 DOI: 10.1039/c9ra09405a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 12/04/2019] [Indexed: 11/21/2022] Open
Abstract
Green-fluorescent N-doped carbon dots (N-CDs) have been successfully fabricated using hydrothermal treatment of tyrosine and urea.
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Affiliation(s)
- Lihong Shi
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- PR China
| | - Dan Chang
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- PR China
| | - Guomei Zhang
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- PR China
| | - Caihong Zhang
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- PR China
| | - Yan Zhang
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- PR China
| | - Chuan Dong
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- PR China
| | - Lanling Chu
- School of Light Industry and Food Engineering
- Nanjing Forestry University
- China
| | - Shaomin Shuang
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- PR China
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28
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Wang Y, Cao W, Yin C, Zhuang Q, Ni Y. Nonenzymatic Amperometric Sensor for Nitrite Detection Based on a Nanocomposite Consisting of Nickel Hydroxide and Reduced Graphene Oxide. ELECTROANAL 2018. [DOI: 10.1002/elan.201800627] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yong Wang
- College of ChemistryNanchang University Nanchang 330031, Jiangxi China
| | - Wei Cao
- College of ChemistryNanchang University Nanchang 330031, Jiangxi China
| | - Chang Yin
- College of ChemistryNanchang University Nanchang 330031, Jiangxi China
| | - Qianfen Zhuang
- College of ChemistryNanchang University Nanchang 330031, Jiangxi China
| | - Yongnian Ni
- College of ChemistryNanchang University Nanchang 330031, Jiangxi China
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