1001
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Gan Z, Xu H, Hao Y. Mechanism for excitation-dependent photoluminescence from graphene quantum dots and other graphene oxide derivates: consensus, debates and challenges. NANOSCALE 2016; 8:7794-807. [PMID: 27030656 DOI: 10.1039/c6nr00605a] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Luminescent nanomaterials, with wide applications in biosensing, bioimaging, illumination and display techniques, have been consistently garnering enormous research attention. In particular, those with wavelength-controllable emissions could be highly beneficial. Carbon nanostructures, including graphene quantum dots (GQDs) and other graphene oxide derivates (GODs), with excitation-dependent photoluminescence (PL), which means their fluorescence color could be tuned simply by changing the excitation wavelength, have attracted lots of interest. However the intrinsic mechanism for the excitation-dependent PL is still obscure and fiercely debated presently. In this review, we attempt to summarize the latest efforts to explore the mechanism, including the quantum confinement effect, surface traps model, giant red-edge effect, edge states model and electronegativity of heteroatom model, as well as the newly developed synergistic model, to seek some clues to unravel the mechanism. Meanwhile the controversial difficulties for each model are further discussed. Besides this, the challenges and potential influences of the synthetic methodology and development of the materials are illustrated extensively to elicit more thought and constructive attempts toward their application.
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Affiliation(s)
- Zhixing Gan
- Key Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China.
| | - Hao Xu
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - Yanling Hao
- XingYi Normal University for Nationalities, Xingyi, Guizhou 562400, P. R. China
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1002
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Ali H, Bhunia SK, Dalal C, Jana NR. Red Fluorescent Carbon Nanoparticle-Based Cell Imaging Probe. ACS APPLIED MATERIALS & INTERFACES 2016; 8:9305-13. [PMID: 27011336 DOI: 10.1021/acsami.5b11318] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Fluorescent carbon nanoparticle-based probes with tunable visible emission are biocompatible, environment friendly and most suitable for various biomedical applications. However, synthesis of red fluorescent carbon nanoparticles and their transformation into functional nanoparticles are very challenging. Here we report red fluorescent carbon nanoparticle-based nanobioconjugates of <25 nm hydrodynamic size and their application as fluorescent cell labels. Hydrophobic carbon nanoparticles are synthesized via high temperature colloid-chemical approach and transformed into water-soluble functional nanoparticles via coating with amphiphilic polymer followed by covalent linking with desired biomolecules. Following this approach, carbon nanoparticles are functionalized with polyethylene glycol, primary amine, glucose, arginine, histidine, biotin and folic acid. These functional nanoparticles can be excited with blue/green light (i.e., 400-550 nm) to capture their emission spanning from 550 to 750 nm. Arginine and folic acid functionalized nanoparticles have been demonstrated as fluorescent cell labels where blue and green excitation has been used for imaging of labeled cells. The presented method can be extended for the development of carbon nanoparticle-based other bioimaging probes.
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Affiliation(s)
- Haydar Ali
- Centre for Advanced Materials, Indian Association for the Cultivation of Science , Kolkata 700032, India
| | - Susanta Kumar Bhunia
- Centre for Advanced Materials, Indian Association for the Cultivation of Science , Kolkata 700032, India
| | - Chumki Dalal
- Centre for Advanced Materials, Indian Association for the Cultivation of Science , Kolkata 700032, India
| | - Nikhil R Jana
- Centre for Advanced Materials, Indian Association for the Cultivation of Science , Kolkata 700032, India
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1003
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Kong W, Yang X, Yang M, Zhou H, Ouyang Z, Zhao M. Photoluminescent nanosensors capped with quantum dots for high-throughput determination of trace contaminants: Strategies for enhancing analytical performance. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.07.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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1004
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Li N, Than A, Wang X, Xu S, Sun L, Duan H, Xu C, Chen P. Ultrasensitive Profiling of Metabolites Using Tyramine-Functionalized Graphene Quantum Dots. ACS NANO 2016; 10:3622-9. [PMID: 26928434 DOI: 10.1021/acsnano.5b08103] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Graphene quantum dots (GQDs) are emerging fluorescence reporters attractive for optical sensing, owing to their high photostability, highly tunable photoluminescence, molecular size, atomically thin structure, biocompatibility, and ease of functionalization. Herein, we present a fluorometric sensing platform based on tyramine-functionalized GQDs, which is able to detect a spectrum of metabolites with high sensitivity and specificity. Furthermore, multiparametric blood analysis (glucose, cholesterol, L-lactate, and xanthine) is demonstrated. This convenient metabolite profiling technique could be instrumental for diagnosis, study, and management of metabolic disorders and associated diseases, such as diabetes, obesity, lactic acidosis, gout, and hypertension.
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Affiliation(s)
- Nan Li
- Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457, Singapore
| | - Aung Than
- Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457, Singapore
| | - Xuewan Wang
- Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457, Singapore
| | - Shaohai Xu
- Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457, Singapore
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Graduate Medical School , 8 College Road, Singapore 169857, Singapore
| | - Lei Sun
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Graduate Medical School , 8 College Road, Singapore 169857, Singapore
| | - Hongwei Duan
- Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457, Singapore
| | - Chenjie Xu
- Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457, Singapore
| | - Peng Chen
- Division of Bioengineering, School of Chemical & Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457, Singapore
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1005
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Zhang L, Wang D, Huang H, Liu L, Zhou Y, Xia X, Deng K, Liu X. Preparation of Gold-Carbon Dots and Ratiometric Fluorescence Cellular Imaging. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6646-55. [PMID: 26905318 DOI: 10.1021/acsami.5b12084] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this study, we synthesized novel gold-carbon dots (GCDs) with unique properties by microwave-assisted method. The characterization of high-resolution transmission electron microscope (HRTEM), XRD, high-angle annular dark field scanning transmission electron microscope (HAADF-STEM), and energy dispersive spectrometer demonstrates that GCDs are composed of carbon and Au. Tiny Au clusters are dispersed in a 2 nm-size carbon skeleton, which integrates the properties of typical CDs and gold nanoclusters (AuNCs), displaying fascinating peroxidase-like activity and single excitation/dual emission. Dual emission of the GCDs exhibits different fluorescent response to the target species and enables the GCDs to be exploited for sensing and bioimaging. The highly photostable and biocompatible GCDs were applied to dual fluorescent imaging for breast cancer cells and normal rat osteoblast cells under a single excitation. Moreover, ratiometric fluorescence imaging was used to monitor Fe(3+) level in normal rat osteoblast cells.
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Affiliation(s)
- Lingyang Zhang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial University Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Donghui Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
| | - Haowen Huang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial University Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Lanfang Liu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial University Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Yuan Zhou
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial University Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Xiaodong Xia
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial University Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Keqin Deng
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial University Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
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1006
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Ge J, Jia Q, Liu W, Lan M, Zhou B, Guo L, Zhou H, Zhang H, Wang Y, Gu Y, Meng X, Wang P. Carbon Dots with Intrinsic Theranostic Properties for Bioimaging, Red-Light-Triggered Photodynamic/Photothermal Simultaneous Therapy In Vitro and In Vivo. Adv Healthc Mater 2016; 5:665-75. [PMID: 26696330 DOI: 10.1002/adhm.201500720] [Citation(s) in RCA: 162] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/15/2015] [Indexed: 12/20/2022]
Abstract
Cancer nanotheranostics combining therapeutic and imaging functions within a single nanoplatform are extremely important for nanomedicine. In this study, carbon dots (C-dots) with intrinsic theranostic properties are prepared by using polythiophene benzoic acid as carbon source. The obtained C-dots absorb light in the range of 400-700 nm and emit bright fluorescence in the red region (peaking from 640 to 680 nm at different excitations). More importantly, the obtained C-dots exhibit dual photodynamic and photothermal effects under 635 nm laser irradiation with a singlet oxygen ((1)O2) generating efficiency of 27% and high photothermal conversion efficiency of 36.2%. These unique properties enable C-dots to act as a red-light-triggered theranostic agent for imaging-guided photodynamic-photothermal simultaneous therapy in vitro and in vivo within the therapeutic window (600-1000 nm).
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Affiliation(s)
- Jiechao Ge
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Qingyan Jia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Minhuan Lan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Bingjiang Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Liang Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Hangyue Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Hongyan Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Ying Wang
- Department of Laser Medicine; Chinese PLA General Hospital; Beijing 100853 China
| | - Ying Gu
- Department of Laser Medicine; Chinese PLA General Hospital; Beijing 100853 China
| | - Xiangmin Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
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1007
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Gu J, Hu D, Huang J, Huang X, Zhang Q, Jia X, Xi K. One-pot synthesis and control of aqueous soluble and organic soluble carbon dots from a designable waterborne polyurethane emulsion. NANOSCALE 2016; 8:3973-3981. [PMID: 26583688 DOI: 10.1039/c5nr04466a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Carbon dots (CDs) have a wide range of applications and have drawn great interest in the recent decade. The fabrication and control of CDs with different solubilities are still urgent problems for their practical use. In this paper, aqueous soluble and organic soluble CDs (ACDs, OCDs) were produced by one-pot hydrothermal treatment of a designable waterborne polyurethane (WPU) emulsion. The difference in the solubility and fluorescence of these two kinds of CDs was attributed to the various functional groups on the surface, which were derived from the different segment fragments formed by hydrothermal treatment of a block polymer. It was found that the yields of the ACDs and OCDs could be regulated by means of selecting different soft segments in WPU. The more hydrophobic soft segments could result in an increase of the OCDs and a decrease of the ACDs. While the soft segments were hydrophilic or hydrolysable under hydrothermal conditions, only ACDs were obtained. The ACDs had good fluorescence and showed low cytotoxicity for use in multicolour bio-imaging. The OCDs processed good solubility in a wide range of organic solvents and were suitable for preparing fluorescent composite films with polymers.
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Affiliation(s)
- Jiangjiang Gu
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science & Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China.
| | - Donghua Hu
- Department of Polymer Science & Engineering, Nanjing University, Nanjing 210093, P. R. China.
| | - Jin Huang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science & Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China.
| | - Xin Huang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science & Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China.
| | - Qiuhong Zhang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science & Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China.
| | - Xudong Jia
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science & Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China.
| | - Kai Xi
- Department of Polymer Science & Engineering, Nanjing University, Nanjing 210093, P. R. China.
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1008
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Du Y, Guo S. Chemically doped fluorescent carbon and graphene quantum dots for bioimaging, sensor, catalytic and photoelectronic applications. NANOSCALE 2016; 8:2532-43. [PMID: 26757977 DOI: 10.1039/c5nr07579c] [Citation(s) in RCA: 270] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Doping fluorescent carbon dots (DFCDs) with heteroatoms have recently become of great interest compared to traditional fluorescent materials because it provides a feasible and new way to tune the intrinsic properties of carbon quantum dots (CQDs) and graphene quantum dots (GQDs) to achieve new applications for them in different fields. Since the first report on nitrogen (N) doped GQDs in 2012, more effort is being focused on exploring different procedures for making new types of DFCDs with different heteroatoms. This mini review will summarize recent research progress on DFCDs. It first reviews various doping categories achieved up to now, looking back on the synthesis method and comparing the differences in synthesis approaches between the DFCDs and the undoped ones. Then it focuses on the advances on how the doping affects the optical properties, especially DFCDs doped with N, which have been investigated the most. Finally, different applications of DFCDs involving bio-imaging, sensing, catalysis and photoelectronic devices will be discussed. This review will give new insights into how to use different synthetic methods for tuning the structure of DFCDs, understanding the correlation between the doping and properties, and achieving new applications.
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Affiliation(s)
- Yan Du
- Institute for Cellular and Molecular Biology, Center for Systems and Synthetic Biology, and Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Shaojun Guo
- Department of Materials Science and Engineering, & Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, 100871, China.
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1009
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Dosio F, Arpicco S, Stella B, Fattal E. Hyaluronic acid for anticancer drug and nucleic acid delivery. Adv Drug Deliv Rev 2016; 97:204-36. [PMID: 26592477 DOI: 10.1016/j.addr.2015.11.011] [Citation(s) in RCA: 399] [Impact Index Per Article: 49.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/03/2015] [Accepted: 11/04/2015] [Indexed: 01/06/2023]
Abstract
Hyaluronic acid (HA) is widely used in anticancer drug delivery, since it is biocompatible, biodegradable, non-toxic, and non-immunogenic; moreover, HA receptors are overexpressed on many tumor cells. Exploiting this ligand-receptor interaction, the use of HA is now a rapidly-growing platform for targeting CD44-overexpressing cells, to improve anticancer therapies. The rationale underlying approaches, chemical strategies, and recent advances in the use of HA to design drug carriers for delivering anticancer agents, are reviewed. Comprehensive descriptions are given of HA-based drug conjugates, particulate carriers (micelles, liposomes, nanoparticles, microparticles), inorganic nanostructures, and hydrogels, with particular emphasis on reports of preclinical/clinical results.
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1010
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Zhu X, Zhao T, Nie Z, Miao Z, Liu Y, Yao S. Nitrogen-doped carbon nanoparticle modulated turn-on fluorescent probes for histidine detection and its imaging in living cells. NANOSCALE 2016; 8:2205-2211. [PMID: 26730681 DOI: 10.1039/c5nr07826a] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work, nitrogen-doped carbon nanoparticle (N-CNP) modulated turn-on fluorescent probes were developed for rapid and selective detection of histidine. The as synthesized N-CNPs exhibited high fluorescence quantum yield and excellent biocompatibility. The fluorescence of N-CNPs can be quenched selectively by Cu(II) ions with high efficiency, and restored by the addition of histidine owing to the competitive binding of Cu(II) ions and histidine that removes Cu(II) ions from the surface of the N-CNPs. Under the optimal conditions, a linear relationship between the increased fluorescence intensity of N-CNP/Cu(II) ion conjugates and the concentration of histidine was established in the range from 0.5 to 60 μM. The detection limit was as low as 150 nM (signal-to-noise ratio of 3). In addition, the as-prepared N-CNP/Cu(II) ion nanoprobes showed excellent biocompatibility and were applied for a histidine imaging assay in living cells, which presented great potential in the bio-labeling assay and clinical diagnostic applications.
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Affiliation(s)
- Xiaohua Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China. and Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Lab of Bioorganic Phosphorus Chemistry and Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China.
| | - Tingbi Zhao
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Lab of Bioorganic Phosphorus Chemistry and Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China.
| | - Zhou Nie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Zhuang Miao
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, China
| | - Yang Liu
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Lab of Bioorganic Phosphorus Chemistry and Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China.
| | - Shouzhuo Yao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China.
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1011
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Hallaj T, Amjadi M. Determination of 2,4-dichlorophenol in water samples using a chemiluminescence system consisting of graphene quantum dots, rhodamine B and cerium(IV) ion. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1749-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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1012
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Ding H, Yu SB, Wei JS, Xiong HM. Full-Color Light-Emitting Carbon Dots with a Surface-State-Controlled Luminescence Mechanism. ACS NANO 2016; 10:484-91. [PMID: 26646584 DOI: 10.1021/acsnano.5b05406] [Citation(s) in RCA: 1104] [Impact Index Per Article: 138.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Carbon dots (CDs) with tunable photoluminescence (PL) and a quantum yield of up to 35% in water were hydrothermally synthesized in one pot and separated via silica column chromatography. These separated CDs emitted bright and stable luminescence in gradient colors from blue to red under a single-wavelength UV light. They exhibited high optical uniformity; that is, every sample showed only one peak in the PL excitation spectrum, only one peak in the excitation-independent PL emission spectrum, and similar monoexponential fluorescence lifetimes. Although these samples had similar distributions of particle size and graphite structure in their carbon cores, the surface state gradually varied among the samples, especially the degree of oxidation. Therefore, the observed red shift in their emission peaks from 440 to 625 nm was ascribed to a gradual reduction in their band gaps with the increasing incorporation of oxygen species into their surface structures. These energy bands were found to depend on the surface groups and structures but not on the particle size, not as in traditional semiconductor quantum dots. In addition, because of their excellent PL properties and low cytotoxicity, these CDs could be used to image cells in different colors under a single-wavelength light source, and the red-emitting CDs could be used to image live mice because of the strong penetration capability of their fluorescence.
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Affiliation(s)
- Hui Ding
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Shang-Bo Yu
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Ji-Shi Wei
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Huan-Ming Xiong
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
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1013
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Guo L, Ge J, Liu W, Niu G, Jia Q, Wang H, Wang P. Tunable multicolor carbon dots prepared from well-defined polythiophene derivatives and their emission mechanism. NANOSCALE 2016; 8:729-34. [PMID: 26660629 DOI: 10.1039/c5nr07153d] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Various functional precursors based on polythiophene derivatives are designed to prepare carbon dots (C-dots) with tunable emissions ranging from blue to near-infrared (NIR) at a single excitation wavelength (400 nm). The as-prepared C-dots demonstrate homogeneous size, superior optical properties, excellent water solubility, and low cytotoxicity. Thus, the C-dots are candidates for bio-imaging. A tunable photoluminescence mechanism is proposed to result from variations in the surface state and N content.
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Affiliation(s)
- Liang Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiechao Ge
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Guangle Niu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qingyan Jia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hui Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
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1014
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Graphene quantum dots as the electrolyte for solid state supercapacitors. Sci Rep 2016; 6:19292. [PMID: 26763275 PMCID: PMC4725872 DOI: 10.1038/srep19292] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 12/09/2015] [Indexed: 11/08/2022] Open
Abstract
We propose that graphene quantum dots (GQDs) with a sufficient number of acidic oxygen-bearing functional groups such as -COOH and -OH can serve as solution- and solid- type electrolytes for supercapacitors. Moreover, we found that the ionic conductivity and ion-donating ability of the GQDs could be markedly improved by simply neutralizing their acidic functional groups by using KOH. These neutralized GQDs as the solution- or solid-type electrolytes greatly enhanced the capacitive performance and rate capability of the supercapacitors. The reason for the enhancement can be ascribed to the fully ionization of the weak acidic oxygen-bearing functional groups after neutralization.
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1015
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Chen Y, Zheng M, Xiao Y, Dong H, Zhang H, Zhuang J, Hu H, Lei B, Liu Y. A Self-Quenching-Resistant Carbon-Dot Powder with Tunable Solid-State Fluorescence and Construction of Dual-Fluorescence Morphologies for White Light-Emission. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:312-8. [PMID: 26568431 DOI: 10.1002/adma.201503380] [Citation(s) in RCA: 275] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/29/2015] [Indexed: 05/23/2023]
Abstract
Self-quenching in the aggregation state is overcome, and tunable solid-state photoluminescence of carbon-dot powder is achieved. Furthermore, based on the controllable optical property in organic solvents, a novel concept, i.e., constructing dual-fluorescence morphologies from single luminescent species, is presented to realize white-light emission.
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Affiliation(s)
- Yonghao Chen
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Mingtao Zheng
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Yong Xiao
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Hanwu Dong
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Haoran Zhang
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Jianle Zhuang
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Hang Hu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Bingfu Lei
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Yingliang Liu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
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1016
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Wang YT, Wang N, Chen ML, Yang T, Wang JH. One step preparation of proton-functionalized photoluminescent graphitic carbon nitride and its sensing applications. RSC Adv 2016. [DOI: 10.1039/c6ra22829a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Proton-functionalized g-C3N4 was synthesized using thiourea and HNO3 as source materials under microwave for only 3 min.
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Affiliation(s)
- Yi-Ting Wang
- Research Center for Analytical Sciences
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
| | - Ning Wang
- Research Center for Analytical Sciences
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
| | - Ming-Li Chen
- Research Center for Analytical Sciences
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
| | - Ting Yang
- Research Center for Analytical Sciences
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
| | - Jian-Hua Wang
- Research Center for Analytical Sciences
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
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1017
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Li X, Yang Z, Hu N, Zhang L, Zhang Y, Yin L. Docetaxel-loaded SiO2@Au@GO core–shell nanoparticles for chemo-photothermal therapy of cancer cells. RSC Adv 2016. [DOI: 10.1039/c6ra03886g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The multifunctional antitumor SiO2@Au@GO core–shell nanoparticles (NPs) have been fabricated for serving as drug nanocarrier and photothermal inducer to have a treatment on human prostate cancer cell DU 145.
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Affiliation(s)
- Xiaolin Li
- Department of Urology
- Changzheng Hospital
- The Second Military Medical University
- Shanghai 200003
- PR China
| | - Zhi Yang
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Nantao Hu
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Liying Zhang
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Yafei Zhang
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Lei Yin
- Department of Urology
- Changzheng Hospital
- The Second Military Medical University
- Shanghai 200003
- PR China
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1018
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Zhu X, Liu J, Peng H, Jiang J, Yu R. A novel fluorescence assay for inorganic pyrophosphatase based on modulated aggregation of graphene quantum dots. Analyst 2016; 141:251-5. [DOI: 10.1039/c5an01937k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A simple and highly sensitive fluorometric method has been developed for inorganic pyrophosphatase (PPase) activity detection based on the disaggregation and aggregation of graphene quantum dots (GQDs).
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Affiliation(s)
- Xueli Zhu
- College of Chemistry and Chemical Engineering
- Hunan University
- State Key Laboratory for Chemo/Biosensing and Chemometrics
- Changsha
- China
| | - Jinwen Liu
- College of Chemistry and Chemical Engineering
- Hunan University
- State Key Laboratory for Chemo/Biosensing and Chemometrics
- Changsha
- China
| | - Haiyang Peng
- College of Chemistry and Chemical Engineering
- Hunan University
- State Key Laboratory for Chemo/Biosensing and Chemometrics
- Changsha
- China
| | - Jianhui Jiang
- College of Chemistry and Chemical Engineering
- Hunan University
- State Key Laboratory for Chemo/Biosensing and Chemometrics
- Changsha
- China
| | - Ruqin Yu
- College of Chemistry and Chemical Engineering
- Hunan University
- State Key Laboratory for Chemo/Biosensing and Chemometrics
- Changsha
- China
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1019
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Li B, Wang X, Guo Y, Iqbal A, Dong Y, Li W, Liu W, Qin W, Chen S, Zhou X, Yang Y. One-pot synthesis of polyamines improved magnetism and fluorescence Fe3O4–carbon dots hybrid NPs for dual modal imaging. Dalton Trans 2016; 45:5484-91. [DOI: 10.1039/c5dt04488j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnetic–fluorescent Fe3O4–CDs with dual modal imaging ability for both MRI and fluorescence imaging are prepared through a one-step hydrothermal method.
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Affiliation(s)
- Bo Li
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Lanzhou University
- Lanzhou
- 730000 P. R. China
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
| | - Xudong Wang
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Lanzhou University
- Lanzhou
- 730000 P. R. China
| | - Yali Guo
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Lanzhou University
- Lanzhou
- 730000 P. R. China
| | - Anam Iqbal
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Lanzhou University
- Lanzhou
- 730000 P. R. China
| | - Yaping Dong
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
- Xining
- P. R. China
| | - Wu Li
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
- Xining
- P. R. China
| | - Weisheng Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Lanzhou University
- Lanzhou
- 730000 P. R. China
| | - Wenwu Qin
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Lanzhou University
- Lanzhou
- 730000 P. R. China
| | - Shizhen Chen
- Key Laboratory of Magnetic Resonance in Biological Systems
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
| | - Xin Zhou
- Key Laboratory of Magnetic Resonance in Biological Systems
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
| | - Yunhuang Yang
- Key Laboratory of Magnetic Resonance in Biological Systems
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
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1020
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Wang X, Sun G, Li N, Chen P. Quantum dots derived from two-dimensional materials and their applications for catalysis and energy. Chem Soc Rev 2016; 45:2239-62. [DOI: 10.1039/c5cs00811e] [Citation(s) in RCA: 325] [Impact Index Per Article: 40.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Equipped with a wide range of extraordinary and tailorable properties, quantum dots derived from two-dimensional materials promise a spectrum of novel applications including catalysis and energy.
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Affiliation(s)
- Xuewan Wang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore
| | - Gengzhi Sun
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore
| | - Nan Li
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore
| | - Peng Chen
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore
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1021
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Li B, Guo Y, Iqbal A, Dong Y, Li W, Liu W, Qin W, Wang Y. Insight into excitation-related luminescence properties of carbon dots: synergistic effect from photoluminescence centers in the carbon core and on the surface. RSC Adv 2016. [DOI: 10.1039/c6ra20562c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
EDE and EIE properties of CDs attribute to the synergistic effect from PL centers in the carbon core and on the surface.
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Affiliation(s)
- Bo Li
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Lanzhou University
- Lanzhou 730000
- P. R. China
- Qinghai Institute of Salt Lakes
| | - Yali Guo
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Anam Iqbal
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yaping Dong
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
- Xining
- P. R. China
| | - Wu Li
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
- Xining
- P. R. China
| | - Weisheng Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Wenwu Qin
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yabin Wang
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
- Xining
- P. R. China
- School of Chemistry and Chemical Engineering
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1022
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Wu F, Su H, Zhu X, Wang K, Zhang Z, Wong WK. Near-infrared emissive lanthanide hybridized carbon quantum dots for bioimaging applications. J Mater Chem B 2016; 4:6366-6372. [DOI: 10.1039/c6tb01646d] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Facile preparation of lanthanide hybridized carbon quantum dots (Ln-CQDs) and their potential for visible/NIR bioimagingin vivo.
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Affiliation(s)
- Fengshou Wu
- Key Laboratory for Green Chemical Process of the Ministry of Education
- Wuhan Institute of Technology
- Wuhan
- P. R. China
- Department of Chemistry
| | - Huifang Su
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangzhou
- P. R. China
| | - Xunjin Zhu
- Department of Chemistry
- Hong Kong Baptist University
- Hong Kong
- P. R. China
| | - Kai Wang
- Key Laboratory for Green Chemical Process of the Ministry of Education
- Wuhan Institute of Technology
- Wuhan
- P. R. China
| | - Zhenfeng Zhang
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangzhou
- P. R. China
| | - Wai-Kwok Wong
- Department of Chemistry
- Hong Kong Baptist University
- Hong Kong
- P. R. China
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1023
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Wang X, Wang Y, He H, Chen X, Sun X, Sun Y, Zhou G, Xu H, Huang F. Steering graphene quantum dots in living cells: lighting up the nucleolus. J Mater Chem B 2016; 4:779-784. [DOI: 10.1039/c5tb02474a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel graphene quantum dot capable of lighting up the nucleoli of living cells has been developed.
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Affiliation(s)
- Xiaojuan Wang
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao 266580
- China
- Centre for Bioengineering and Biotechnology
| | - Yanan Wang
- Centre for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Hua He
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao 266580
- China
- Centre for Bioengineering and Biotechnology
| | - Xin Chen
- Centre for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Xing Sun
- Centre for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Yawei Sun
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao 266580
- China
- Centre for Bioengineering and Biotechnology
| | - Guangjun Zhou
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Hai Xu
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao 266580
- China
- Centre for Bioengineering and Biotechnology
| | - Fang Huang
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum (East China)
- Qingdao 266580
- China
- Centre for Bioengineering and Biotechnology
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1024
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Wan JY, Yang Z, Liu ZG, Wang HX. Ionic liquid-assisted thermal decomposition synthesis of carbon dots and graphene-like carbon sheets for optoelectronic application. RSC Adv 2016. [DOI: 10.1039/c6ra14181a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile process route for the synthesis of carbon dots and graphene-like carbon sheets is reported, which relies on direct carbonization of small organic molecules in a liquid-phase by using ionic liquid as solvent.
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Affiliation(s)
- Jia-Yun Wan
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- MOE Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan
| | - Ze Yang
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- MOE Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan
| | - Zhong-Guo Liu
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- MOE Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan
| | - Hang-Xing Wang
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- MOE Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan
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1025
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Dai Y, Pang H, Huang J, Yang Y, Huang H, Wang K, Ma Z, Liao B. Tailoring of ammonia reduced graphene oxide into amine functionalized graphene quantum dots through a Hofmann rearrangement. RSC Adv 2016. [DOI: 10.1039/c6ra01587e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A Hofmann rearrangement tailored and exfoliated multi-layered ammonia reduced graphene oxide into amine functionalized graphene quantum dots.
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Affiliation(s)
- Yongqiang Dai
- Key Laboratory of Cellulose and Lignocelluloses Chemistry
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
| | - Hao Pang
- Key Laboratory of Cellulose and Lignocelluloses Chemistry
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
| | - Jianheng Huang
- Key Laboratory of Cellulose and Lignocelluloses Chemistry
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
| | - Yong Yang
- Key Laboratory of Cellulose and Lignocelluloses Chemistry
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
| | - Hao Huang
- Key Laboratory of Cellulose and Lignocelluloses Chemistry
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
| | - Kun Wang
- Key Laboratory of Cellulose and Lignocelluloses Chemistry
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
| | - Zhe Ma
- Key Laboratory of Cellulose and Lignocelluloses Chemistry
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
| | - Bing Liao
- Key Laboratory of Cellulose and Lignocelluloses Chemistry
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
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1026
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Joseph J, Anappara AA. Microwave-assisted hydrothermal synthesis of UV-emitting carbon dots from tannic acid. NEW J CHEM 2016. [DOI: 10.1039/c6nj02107g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
UV-photoluminescent carbon dots were synthesized through a facile process and were used as fluorophores for the highly selective and sensitive detection of picric acid.
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Affiliation(s)
- Julin Joseph
- Department of Physics
- National Institute of Technology Calicut (NITC)
- India
| | - Aji A. Anappara
- Department of Physics
- National Institute of Technology Calicut (NITC)
- India
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1027
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Privitera A, Righetto M, Mosconi D, Lorandi F, Isse AA, Moretto A, Bozio R, Ferrante C, Franco L. Boosting carbon quantum dots/fullerene electron transfer via surface group engineering. Phys Chem Chem Phys 2016; 18:31286-31295. [DOI: 10.1039/c6cp05981c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thiophene functionalization of N-doped carbon quantum dots greatly increases their electron donating capabilities under visible light excitation.
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Affiliation(s)
- Alberto Privitera
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Marcello Righetto
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Dario Mosconi
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Francesca Lorandi
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Abdirisak A. Isse
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | | | - Renato Bozio
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Camilla Ferrante
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Lorenzo Franco
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
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1028
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Santiago SRM, Lin TN, Yuan CT, Shen JL, Huang HY, Lin CAJ. Origin of tunable photoluminescence from graphene quantum dots synthesized via pulsed laser ablation. Phys Chem Chem Phys 2016; 18:22599-605. [DOI: 10.1039/c6cp03159e] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A one-step synthesis of graphene quantum dots (GQDs) has been implemented using pulsed laser ablation (PLA) with carboxyl-functionalized multiwalled carbon nanotubes (MWCNTs).
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Affiliation(s)
- S. R. M. Santiago
- Department of Physics and Center for Nanotechnology
- Chung Yuan Christian University
- Chung-Li 32023
- Taiwan
| | - T. N. Lin
- Department of Physics and Center for Nanotechnology
- Chung Yuan Christian University
- Chung-Li 32023
- Taiwan
| | - C. T. Yuan
- Department of Physics and Center for Nanotechnology
- Chung Yuan Christian University
- Chung-Li 32023
- Taiwan
| | - J. L. Shen
- Department of Physics and Center for Nanotechnology
- Chung Yuan Christian University
- Chung-Li 32023
- Taiwan
| | - H. Y. Huang
- Department of Biomedical Engineering
- Chung Yuan Christian University
- Chung-Li 32023
- Taiwan
| | - C. A. J. Lin
- Department of Biomedical Engineering
- Chung Yuan Christian University
- Chung-Li 32023
- Taiwan
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1029
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Wang X, Shen X, Li B, Jiang G, Zhou X, Jiang H. One-step facile synthesis of novel β-amino alcohol functionalized carbon dots for the fabrication of a selective copper ion sensing interface based on the biuret reaction. RSC Adv 2016. [DOI: 10.1039/c5ra24348c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The detection strategy of β-amino alcohol functionalized carbon dots for Cu2+ based on the biuret reaction.
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Affiliation(s)
- Xi Wang
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166
- P. R. China
| | - Xin Shen
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166
- P. R. China
| | - Bingzhi Li
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166
- P. R. China
| | - Guoyi Jiang
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166
- P. R. China
| | - Xuemin Zhou
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166
- P. R. China
| | - Huijun Jiang
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166
- P. R. China
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1030
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Abstract
Graphene quantum dots (GQDs) and carbon quantum dots (CQDs) demonstrate unique properties in the electroanalysis field, including electroresistance, electrochemiluminescence, electrochemical and photoelectrochemical sensors.
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Affiliation(s)
- Ying Yulong
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Peng Xinsheng
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- China
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1031
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Pan L, Sun S, Zhang L, Jiang K, Lin H. Near-infrared emissive carbon dots for two-photon fluorescence bioimaging. NANOSCALE 2016; 8:17350-17356. [PMID: 27714173 DOI: 10.1039/c6nr05878g] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
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1032
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Zhou S, Xu H, Gan W, Yuan Q. Graphene quantum dots: recent progress in preparation and fluorescence sensing applications. RSC Adv 2016. [DOI: 10.1039/c6ra24349e] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
This paper reviews recent activities in the preparation and fluorescence sensing applications of graphene quantum dots.
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Affiliation(s)
- Shenghai Zhou
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
- Laboratory of Environmental Science and Technology
| | - Hongbo Xu
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
- Laboratory of Environmental Science and Technology
| | - Wei Gan
- School of Natural Sciences and Humanities
- Harbin Institute of Technology
- Shenzhen 518055
- China
- Laboratory of Environmental Science and Technology
| | - Qunhui Yuan
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Shenzhen 518055
- China
- Laboratory of Environmental Science and Technology
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1033
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Sun X, Zhang Q, Yin K, Zhou S, Li H. Fluorescent vesicles formed by simple surfactants induced by oppositely-charged carbon quantum dots. Chem Commun (Camb) 2016; 52:12024-12027. [DOI: 10.1039/c6cc05783g] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Fluorescent vesicles can be constructed by mixing oppositely-charged CQDs and simple surfactants in water.
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Affiliation(s)
- Xiaofeng Sun
- State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou
- China
| | - Qinghong Zhang
- State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou
- China
| | - Keyang Yin
- State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou
- China
| | - Shengju Zhou
- State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou
- China
| | - Hongguang Li
- State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou
- China
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1034
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Chang JY, Chen GR, Li JD. Synthesis of magnetofluorescence Gd-doped CuInS2/ZnS quantum dots with enhanced longitudinal relaxivity. Phys Chem Chem Phys 2016; 18:7132-40. [DOI: 10.1039/c5cp07063e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gd-doped CuInS2/ZnS quantum dots were synthesized in a one-pot reaction under microwave irradiation; these quantum dots exhibited great potential as dual-modal nanoprobes for optical/MR imaging.
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Affiliation(s)
- Jia-Yaw Chang
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Republic of China
| | - Guan-Rong Chen
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Republic of China
| | - Jyun-Dong Li
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Republic of China
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1035
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Wang K, Dong J, Sun L, Chen H, Wang Y, Wang C, Dong L. Effects of elemental doping on the photoluminescence properties of graphene quantum dots. RSC Adv 2016. [DOI: 10.1039/c6ra19673j] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
B/N//P/S atoms were doped into graphene quantum dots to tailor their surface functional groups and structural defects with the aim of improving their photoluminescence properties.
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Affiliation(s)
- Kaiqi Wang
- School of Chemistry and Pharmaceutical Engineering
- Taishan Medical University
- Taian
- P. R. China
| | - Jian Dong
- School of Chemistry and Pharmaceutical Engineering
- Taishan Medical University
- Taian
- P. R. China
| | - Liping Sun
- School of Chemistry and Pharmaceutical Engineering
- Taishan Medical University
- Taian
- P. R. China
| | - Hongyu Chen
- School of Chemistry and Pharmaceutical Engineering
- Taishan Medical University
- Taian
- P. R. China
| | - Yi Wang
- School of Chemistry and Pharmaceutical Engineering
- Taishan Medical University
- Taian
- P. R. China
| | - Chongxin Wang
- School of Chemistry and Pharmaceutical Engineering
- Taishan Medical University
- Taian
- P. R. China
| | - Lifeng Dong
- School of Chemistry and Pharmaceutical Engineering
- Taishan Medical University
- Taian
- P. R. China
- Department of Physics
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1036
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Zhou F, Feng H, Fang Y, Sun Q, Qian Z. Phenylsulfonic acid functionalized carbon quantum dots based biosensor for acetylcholinesterase activity monitoring and inhibitor screening. RSC Adv 2016. [DOI: 10.1039/c6ra18978d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Phenylsulfonic acid functionalized carbon quantum dots (PSA-CQDs) were prepared and used to construct a convenient and reliable fluorometric biosensor for acetylcholinesterase (AChE) activity and inhibitor screening.
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Affiliation(s)
- Fengqi Zhou
- College of Chemistry and Life Science
- Zhejiang Normal University
- Jinhua 321004
- China
| | - Hui Feng
- College of Chemistry and Life Science
- Zhejiang Normal University
- Jinhua 321004
- China
| | - Yafen Fang
- College of Chemistry and Life Science
- Zhejiang Normal University
- Jinhua 321004
- China
| | - Qian Sun
- College of Chemistry and Life Science
- Zhejiang Normal University
- Jinhua 321004
- China
| | - Zhaosheng Qian
- College of Chemistry and Life Science
- Zhejiang Normal University
- Jinhua 321004
- China
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1037
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Xu H, Zhou S, Xiao L, Yuan Q, Gan W. Time-efficient syntheses of nitrogen and sulfur co-doped graphene quantum dots with tunable luminescence and their sensing applications. RSC Adv 2016. [DOI: 10.1039/c6ra05175h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
N,S co-doped GQDs with fast preparation and tunable fluorescence were developed and employed as fluorescence probe for selective detection of Fe3+.
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Affiliation(s)
- Hongbo Xu
- Laboratory of Environmental Sciences and Technology
- Xinjiang Technical Institute of Physics and Chemistry
- Key Laboratory of Functional Materials and Devices for Special Environments
- Chinese Academy of Sciences
- Urumqi
| | - Shenghai Zhou
- Laboratory of Environmental Sciences and Technology
- Xinjiang Technical Institute of Physics and Chemistry
- Key Laboratory of Functional Materials and Devices for Special Environments
- Chinese Academy of Sciences
- Urumqi
| | - Lili Xiao
- Laboratory of Environmental Sciences and Technology
- Xinjiang Technical Institute of Physics and Chemistry
- Key Laboratory of Functional Materials and Devices for Special Environments
- Chinese Academy of Sciences
- Urumqi
| | - Qunhui Yuan
- Laboratory of Environmental Sciences and Technology
- Xinjiang Technical Institute of Physics and Chemistry
- Key Laboratory of Functional Materials and Devices for Special Environments
- Chinese Academy of Sciences
- Urumqi
| | - Wei Gan
- Laboratory of Environmental Sciences and Technology
- Xinjiang Technical Institute of Physics and Chemistry
- Key Laboratory of Functional Materials and Devices for Special Environments
- Chinese Academy of Sciences
- Urumqi
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1038
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Samantara AK, Maji S, Ghosh A, Bag B, Dash R, Jena BK. Good's buffer derived highly emissive carbon quantum dots: excellent biocompatible anticancer drug carrier. J Mater Chem B 2016; 4:2412-2420. [DOI: 10.1039/c6tb00081a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile one-step approach has been developed for the synthesis of carbon quantum dots (CQDs) from Good’s buffer.
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Affiliation(s)
- Aneeya K. Samantara
- CSIR-Institute of Minerals and Materials Technology
- Bhubaneswar 751013
- India
- Academy of Scientific & Innovative Research (AcSIR)
- New Delhi-110 001
| | - Santanu Maji
- Institute of Life Sciences
- Bhubaneswar 751023
- India
- Manipal University
- India
| | | | - Bamaprasad Bag
- CSIR-Institute of Minerals and Materials Technology
- Bhubaneswar 751013
- India
- Academy of Scientific & Innovative Research (AcSIR)
- New Delhi-110 001
| | - Rupesh Dash
- Institute of Life Sciences
- Bhubaneswar 751023
- India
| | - Bikash Kumar Jena
- CSIR-Institute of Minerals and Materials Technology
- Bhubaneswar 751013
- India
- Academy of Scientific & Innovative Research (AcSIR)
- New Delhi-110 001
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1039
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Dai B, Wang L, Shao J, Huang X, Yu G. CdS-modified porous foam nickel for label-free highly efficient detection of cancer cells. RSC Adv 2016. [DOI: 10.1039/c6ra01067a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
CdS-modified foam nickel (FN) was successfully constructed for the effective detection of cancer cells based on an electrochemiluminescence (ECL) technique and provides a new platform for the realization of an ECL sensor for cancer cells.
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Affiliation(s)
- Bing Dai
- School of Mechanical and Power Engineering
- Harbin University of Science and Technology
- Harbin 150080
- China
| | - Lei Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Junpeng Shao
- School of Mechanical and Power Engineering
- Harbin University of Science and Technology
- Harbin 150080
- China
| | - Xin Huang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Guangbin Yu
- School of Mechanical and Power Engineering
- Harbin University of Science and Technology
- Harbin 150080
- China
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
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1040
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Xu ZQ, Lan JY, Jin JC, Dong P, Jiang FL, Liu Y. Highly Photoluminescent Nitrogen-Doped Carbon Nanodots and Their Protective Effects against Oxidative Stress on Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:28346-52. [PMID: 26641543 DOI: 10.1021/acsami.5b08945] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Highly photoluminescent (PL) (quantum yield = 54%) nitrogen doped carbon nanodots (C-dots) have been prepared through one-step carbonizing citric acid and tris(hydroxymethyl)aminomethane and using oleic acid as solvent. The synthesized C-dots are monodisperse with narrow size distribution (average 1.7 nm). The PL properties of C-dots are pH dependent, and hence, using C-dots as sophisticated pH sensor to detect pH values between 7 and 9 can be expected. In addition, the PL intensity of C-dots remains stable under high ionic strength. The C-dots can protect cells from oxidative stress, which shows potential to expand the biological application of C-dots, especially in medical treatment. The protective mechanism is associated with intracellular reactive oxygen species elimination and the intracellular superoxide dismutase production.
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Affiliation(s)
- Zi-Qiang Xu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation andApplication of Functional Materials, Hubei Province Key Laboratory of Industrial Biotechnology, Hubei Key Laboratory of Polymer Materials, Faculty of Materials Science & Engineering, Hubei University , Wuhan 430062, P. R. China
| | - Jia-Yi Lan
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Jian-Cheng Jin
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Ping Dong
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Feng-Lei Jiang
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Yi Liu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
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1041
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Habiba K, Encarnacion-Rosado J, Garcia-Pabon K, Villalobos-Santos JC, Makarov VI, Avalos JA, Weiner BR, Morell G. Improving cytotoxicity against cancer cells by chemo-photodynamic combined modalities using silver-graphene quantum dots nanocomposites. Int J Nanomedicine 2015; 11:107-19. [PMID: 26766909 PMCID: PMC4699517 DOI: 10.2147/ijn.s95440] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The combination of chemotherapy and photodynamic therapy has emerged as a promising strategy for cancer therapy due to its synergistic effects. In this work, PEGylated silver nanoparticles decorated with graphene quantum dots (Ag-GQDs) were tested as a platform to deliver a chemotherapy drug and a photosensitizer, simultaneously, in chemo-photodynamic therapy against HeLa and DU145 cancer cells in vitro. Ag-GQDs have displayed high efficiency in delivering doxorubicin as a model chemotherapy drug to both cancer cells. The Ag-GQDs exhibited a strong antitumor activity by inducing apoptosis in cancer cells without affecting the viability of normal cells. Moreover, the Ag-GQDs exhibited a cytotoxic effect due to the generation of the reactive singlet oxygen upon 425 nm irradiation, indicating their applicability in photodynamic therapy. In comparison with chemo or photodynamic treatment alone, the combined treatment of Ag-GQDs conjugated with doxorubicin under irradiation with a 425 nm lamp significantly increased the death in DU145 and HeLa. This study suggests Ag-GQDs as a multifunctional and efficient therapeutic system for chemo-photodynamic modalities in cancer therapy.
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Affiliation(s)
- Khaled Habiba
- Department of Physics, University of Puerto Rico – Rio Piedras Campus, San Juan, PR, USA
- Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR, USA
| | - Joel Encarnacion-Rosado
- Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR, USA
- Department of Biology, University of Puerto Rico – Rio Piedras Campus, San Juan, PR, USA
| | - Kenny Garcia-Pabon
- Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR, USA
- Faculty of Education, University of Puerto Rico – Rio Piedras Campus, San Juan, PR, USA
| | - Juan C Villalobos-Santos
- Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR, USA
- Department of Biology, University of Puerto Rico – Bayamon Campus, Bayamon, PR, USA
| | - Vladimir I Makarov
- Department of Physics, University of Puerto Rico – Rio Piedras Campus, San Juan, PR, USA
| | - Javier A Avalos
- Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR, USA
- Department of Physics, University of Puerto Rico – Bayamon Campus, Bayamon, PR, USA
| | - Brad R Weiner
- Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR, USA
- Institute for Functional Nanomaterials, University of Puerto Rico, San Juan, PR, USA
- Department of Chemistry, University of Puerto Rico – Rio Piedras Campus, San Juan, PR, USA
| | - Gerardo Morell
- Department of Physics, University of Puerto Rico – Rio Piedras Campus, San Juan, PR, USA
- Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR, USA
- Institute for Functional Nanomaterials, University of Puerto Rico, San Juan, PR, USA
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1042
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Jung YK, Shin E, Kim BS. Cell Nucleus-Targeting Zwitterionic Carbon Dots. Sci Rep 2015; 5:18807. [PMID: 26689549 PMCID: PMC4686939 DOI: 10.1038/srep18807] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 11/25/2015] [Indexed: 12/05/2022] Open
Abstract
An innovative nucleus-targeting zwitterionic carbon dot (CD) vehicle has been developed for anticancer drug delivery and optical monitoring. The zwitterionic functional groups of the CDs introduced by a simple one-step synthesis using β-alanine as a passivating and zwitterionic ligand allow cytoplasmic uptake and subsequent nuclear translocation of the CDs. Moreover, multicolor fluorescence improves the accuracy of the CDs as an optical code. The CD-based drug delivery system constructed by non-covalent grafting of doxorubicin, exhibits superior antitumor efficacy owing to enhanced nuclear delivery in vitro and tumor accumulation in vivo, resulting in highly effective tumor growth inhibition. Since the zwitterionic CDs are highly biocompatible and effectively translocated into the nucleus, it provides a compelling solution to a multifunctional nanoparticle for substantially enhanced nuclear uptake of drugs and optical monitoring of translocation.
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Affiliation(s)
- Yun Kyung Jung
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan 689-798, Republic of Korea
| | - Eeseul Shin
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan 689-798, Republic of Korea
| | - Byeong-Su Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan 689-798, Republic of Korea
- Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan 689-798, Republic of Korea
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1043
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Maysinger D, Ji J, Hutter E, Cooper E. Nanoparticle-Based and Bioengineered Probes and Sensors to Detect Physiological and Pathological Biomarkers in Neural Cells. Front Neurosci 2015; 9:480. [PMID: 26733793 PMCID: PMC4683200 DOI: 10.3389/fnins.2015.00480] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 11/30/2015] [Indexed: 01/11/2023] Open
Abstract
Nanotechnology, a rapidly evolving field, provides simple and practical tools to investigate the nervous system in health and disease. Among these tools are nanoparticle-based probes and sensors that detect biochemical and physiological properties of neurons and glia, and generate signals proportionate to physical, chemical, and/or electrical changes in these cells. In this context, quantum dots (QDs), carbon-based structures (C-dots, grapheme, and nanodiamonds) and gold nanoparticles are the most commonly used nanostructures. They can detect and measure enzymatic activities of proteases (metalloproteinases, caspases), ions, metabolites, and other biomolecules under physiological or pathological conditions in neural cells. Here, we provide some examples of nanoparticle-based and genetically engineered probes and sensors that are used to reveal changes in protease activities and calcium ion concentrations. Although significant progress in developing these tools has been made for probing neural cells, several challenges remain. We review many common hurdles in sensor development, while highlighting certain advances. In the end, we propose some future directions and ideas for developing practical tools for neural cell investigations, based on the maxim "Measure what is measurable, and make measurable what is not so" (Galileo Galilei).
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Affiliation(s)
- Dusica Maysinger
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Jeff Ji
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Eliza Hutter
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Elis Cooper
- Department of Physiology, McGill University Montreal, QC, Canada
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1044
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Hu S. Tuning Optical Properties and Photocatalytic Activities of Carbon-based “Quantum Dots” Through their Surface Groups. CHEM REC 2015; 16:219-30. [DOI: 10.1111/tcr.201500225] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Indexed: 01/25/2023]
Affiliation(s)
- Shengliang Hu
- School of Materials Science and Engineering; North University of China; Taiyuan 030051 P. R. China
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1045
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Bandosz TJ. Nanoporous Carbons: Looking Beyond Their Perception as Adsorbents, Catalyst Supports and Supercapacitors. CHEM REC 2015; 16:205-18. [PMID: 26663696 DOI: 10.1002/tcr.201500231] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Indexed: 01/19/2023]
Abstract
The discovery of carbon nanoforms, and especially graphene, has opened up new directions of science and technology. Many applications are based on the unique properties of graphene, such as its high electrical and thermal conductivity, strength, flexibility, photoactivity and transparency. Inspired by the emerging graphene science, we directed our efforts to the exploration of new applications of nanoporous (microporous) carbons. Their matrix is built of distorted graphene layers, between which pores with sizes ranging from a fraction of a nanometer to hundreds of nanometers exist. This is a very unique feature of nanoporous carbons resulting in their developed surface areas. Moreover, there are vast possibilities to modify the surface chemistry of carbons and thus their surface properties. Even though the traditional applications of porous carbons focus mainly on adsorption and separation, we decided to explore them as photocatalysts, oxygen reduction catalysts and sensors. Related to their visible-light activity, their possible application in solar energy harvesting is also indicated. This Personal Account presents our paths leading to the exploration of these directions, describing the results collected and difficulties encountered, along with the challenges remaining to be addressed.
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Affiliation(s)
- Teresa J Bandosz
- Department of Chemistry, The City College of New York, 160 Convent Ave, New York, NY, 10031, USA
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1046
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Wang L, Li B, Xu F, Shi X, Feng D, Wei D, Li Y, Feng Y, Wang Y, Jia D, Zhou Y. High-yield synthesis of strong photoluminescent N-doped carbon nanodots derived from hydrosoluble chitosan for mercury ion sensing via smartphone APP. Biosens Bioelectron 2015; 79:1-8. [PMID: 26686916 DOI: 10.1016/j.bios.2015.11.085] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/16/2015] [Accepted: 11/27/2015] [Indexed: 12/12/2022]
Abstract
Photoluminescent carbon nanodots (CNDs) have offered considerable potential to be used in biomedical and environmental fields including live cell imaging and heavy metal ion detection due to their superior quantum emission efficiencies, ability to be functionalized using a variety of chemistries and apparent absence of toxicity. However, to date, synthetic yield of CNDs derived from biomass via hydrothermal carbonization is quite low. We report here the synthesis of nitrogen-doped carbon nanodots (N-doped CNDs) derived from hydrosoluble chitosan via hydrothermal carbonization. The synthetic yield could reach 38.4% which is 2.2-320 times increase compared with that from other biomass reported so far. These N-doped CNDs exhibited a high quantum yield (31.8%) as a consequence of nitrogen incorporation coincident with multiple types of functional groups (C=O, O-H, COOH, and NH2). We further demonstrate applications of N-doped CNDs as probes for live cell multicolor imaging and heavy metal ion detection. The N-doped CNDs offered potential as mercury ion sensors with detection limit of 80nM. A smartphone application (APP) based on N-doped CNDs was developed for the first time providing a portable and low cost detection platform for detection of Hg(2+) and alert of heavy metal ions contamination.
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Affiliation(s)
- Lei Wang
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Baoqiang Li
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Feng Xu
- MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Xinyao Shi
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Demeng Feng
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Daqing Wei
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Ying Li
- Sino-Russian Institute of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China
| | - Yujie Feng
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yaming Wang
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Dechang Jia
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yu Zhou
- Institute for Advanced Ceramics; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China
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1047
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Wang W, Damm C, Walter J, Nacken TJ, Peukert W. Photobleaching and stabilization of carbon nanodots produced by solvothermal synthesis. Phys Chem Chem Phys 2015; 18:466-75. [PMID: 26616577 DOI: 10.1039/c5cp04942c] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this work we performed a detailed investigation of the photostability of bottom-up produced carbon nanodots (CDs) prepared from citric acid and urea by solvothermal synthesis. Analytical ultracentrifugation (AUC) reveals that the CDs have a hydrodynamic diameter of <1 nm and a very narrow size distribution. In the community it is widely assumed that CDs are photo-stable. In contrast, we found that CDs exposed to UV-irradiation exhibit noteworthy fluorescence degeneration compared to freshly prepared CDs or CDs stored in the dark, indicating that fluorescence bleaching is caused by a photochemical process. We found that fluorescence intensity decay due to exposure to UV-irradiation is accelerated in the presence of oxygen and identified the surface status of CDs as the decisive factor of fluorescence bleaching of CDs. Based on a discussion on the underlying mechanisms we show how to avoid photobleaching of CDs.
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Affiliation(s)
- Wenshuo Wang
- Friedrich-Alexander University Erlangen-Nürnberg, Institute of Particle Technology, Cauerstrasse 4, 91058 Erlangen, Germany.
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1048
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Zheng M, Ruan S, Liu S, Sun T, Qu D, Zhao H, Xie Z, Gao H, Jing X, Sun Z. Self-Targeting Fluorescent Carbon Dots for Diagnosis of Brain Cancer Cells. ACS NANO 2015; 9:11455-61. [PMID: 26458137 DOI: 10.1021/acsnano.5b05575] [Citation(s) in RCA: 276] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A new type of carbon dots (CD-Asp) with targeting function toward brain cancer glioma was synthesized via a straightforward pyrolysis route by using D-glucose and L-aspartic acid as starting materials. The as-prepared CD-Asp exhibits not only excellent biocompatibility and tunable full-color emission, but also significant capability of targeting C6 glioma cells without the aid of any extra targeting molecules. In vivo fluorescence images showed high-contrast biodistribution of CD-Asp 15 min after tail vein injection. A much stronger fluorescent signal was detected in the glioma site than that in normal brain, indicating their ability to freely penetrate the blood-brain barrier and precisely targeting glioma tissue. However, its counterparts, the CDs synthesized from D-glucose (CD-G), L-asparic acid (CD-A), or D-glucose and L-glutamic acid (CD-Glu) have no or low selectivity for glioma. Therefore, CD-Asp could act as a fluorescence imaging and targeting agent for noninvasive glioma diagnosis. This work highlights the potential application of CDs for constructing an intelligent nanomedicine with integration of diagnostic, targeting, and therapeutic functions.
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Affiliation(s)
- Min Zheng
- Chemistry and Life Science School, Advanced Institute of Materials Science, Changchun University of Technology , 2055 Yanan Street, Changchun, Jilin 130012, People's Republic of China
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences , 3888 East Nanhu Road, Changchun, Jilin 130033, People's Republic of China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun, Jilin 130022, People's Republic of China
| | - Shaobo Ruan
- Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University , No. 17 Block 3, Southern Renmin Road, Chengdu, 610041, People's Republic of China
| | - Shi Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun, Jilin 130022, People's Republic of China
| | - Tingting Sun
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun, Jilin 130022, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Dan Qu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences , 3888 East Nanhu Road, Changchun, Jilin 130033, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Haifeng Zhao
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences , 3888 East Nanhu Road, Changchun, Jilin 130033, People's Republic of China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun, Jilin 130022, People's Republic of China
| | - Huile Gao
- Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University , No. 17 Block 3, Southern Renmin Road, Chengdu, 610041, People's Republic of China
| | - Xiabin Jing
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun, Jilin 130022, People's Republic of China
| | - Zaicheng Sun
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences , 3888 East Nanhu Road, Changchun, Jilin 130033, People's Republic of China
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology , Beijing 100124, People's Republic of China
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1049
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Gan S, Zhong L, Han D, Niu L, Chi Q. Probing Bio-Nano Interactions between Blood Proteins and Monolayer-Stabilized Graphene Sheets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:5814-5825. [PMID: 26413807 DOI: 10.1002/smll.201501819] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/25/2015] [Indexed: 06/05/2023]
Abstract
Meeting proteins is regarded as the starting event for nanostructures to enter biological systems. Understanding their interactions is thus essential for a newly emerging field, nanomedicine. Chemically converted graphene (CCG) is a wonderful two-dimensional (2D) material for nanomedicine, but its stability in biological environments is limited. Systematic probing on the binding of proteins to CCG is currently lacking. Herein, we report a comprehensive study on the interactions between blood proteins and stabilized CCG (sCCG). CCG nanosheets are functionalized by monolayers of perylene leading to significant improvement in their resistance to electrolyte salts and long-term stability, but retain their core structural characteristics. Five types of model human blood proteins including human fibrinogen, γ-globulin, bovine serum albumin (BSA), insulin, and histone are tested. The main driving forces for blood protein binding involve the π-π interacations between the π-plane of sCCG and surface aromatic amonic acid (sAA) residues of proteins. Several key binding parameters including the binding amount, Hill coefficient, and binding constant are determined. Through a detailed analysis of key controlling factors, we conclude that the protein binding to sCCG is determined mainly by the protein size, the number, and the density of the sAA.
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Affiliation(s)
- Shiyu Gan
- Department of Chemistry, Technical University of Denmark, DK-2800, Kongens Lyngby, Denmark
- Engineering Laboratory for Modern Analytical Techniques c/o State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lijie Zhong
- Engineering Laboratory for Modern Analytical Techniques c/o State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Dongxue Han
- Engineering Laboratory for Modern Analytical Techniques c/o State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Li Niu
- Engineering Laboratory for Modern Analytical Techniques c/o State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Qijin Chi
- Department of Chemistry, Technical University of Denmark, DK-2800, Kongens Lyngby, Denmark
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1050
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Interaction of Graphene Quantum Dots with 4-Acetamido-2,2,6,6-Tetramethylpiperidine-Oxyl Free Radicals: A Spectroscopic and Fluorimetric Study. J Fluoresc 2015; 26:283-95. [DOI: 10.1007/s10895-015-1712-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 10/26/2015] [Indexed: 12/26/2022]
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