151
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Zhang XY, Li Y, Wang YY, Liu XY, Jiang FL, Liu Y, Jiang P. Nitrogen and sulfur co-doped carbon dots with bright fluorescence for intracellular detection of iron ion and thiol. J Colloid Interface Sci 2021; 611:255-264. [PMID: 34953458 DOI: 10.1016/j.jcis.2021.12.069] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/28/2021] [Accepted: 12/11/2021] [Indexed: 12/19/2022]
Abstract
Carbon dots (CDs) have been widely used in recent years because of their excellent water solubility and abundant surface functional groups. However, compared with quantum dots or biological probes, the quantum yield of CDs is lower, and the fluorescence mainly concentrated in the blue-green range, which significantly limits the biological applications of CDs. Heteroatoms doping is the most common method to improve the luminescence of CDs. In this work, nitrogen and sulfur co-doped luminescent CDs were successfully synthesized by microwave assisted method using glutathione (GSH) and p-phenylenediamine (PPD) as raw materials. It can emit bright green fluorescence in ethanol solution, and the maximum emission wavelength is 535 nm when excited at 374 nm, and the absolute quantum yield is as high as 63%. Iron ion (Fe3+) can interact with the functional groups on the surface of the CDs to form CDs/Fe3+, which is a non-fluorescence complex, and Fe3+ can be reduced to ferrous ion (Fe2+). In other words, the reaction mechanism of CDs and Fe3+ is a combination of dynamic quenching and static quenching. The fluorescence of CDs quenched by Fe3+ can be restored by thiol, because there is a stronger binding force between sulfhydryl (-SH) on the surface of thiol and Fe3+, which enables CDs to be released. In addition, the CDs has good biocompatibility and stability, indicating that it has excellent potential in bioimaging. This discovery will expand the application of CDs in the fields of biosensing and imaging.
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Affiliation(s)
- Xiao-Yang Zhang
- Department of Chemistry, College of Chemistry and Molecular Sciences & Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yu Li
- Department of Chemistry, College of Chemistry and Molecular Sciences & Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yu-Ying Wang
- Department of Chemistry, College of Chemistry and Molecular Sciences & Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Xing-Yu Liu
- Department of Chemistry, College of Chemistry and Molecular Sciences & Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Feng-Lei Jiang
- Department of Chemistry, College of Chemistry and Molecular Sciences & Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yi Liu
- Department of Chemistry, College of Chemistry and Molecular Sciences & Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, P. R. China; State Key Laboratory of Membrane Separation and Membrane Process, School of Chemistry and Chemical Engineering & School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, P. R. China.
| | - Peng Jiang
- Department of Chemistry, College of Chemistry and Molecular Sciences & Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, P. R. China.
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152
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Huang C, Feng M, Zhu X, Zhou Q, Zeng S, Huang Y, Zhang H. Polymer Precursor Strategy Toward the Precise Synthesis of Uniform Hairy Carbon Dots with Tunable Sizes and Size Effects over Their Fluorescence. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chushu Huang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou 515063, China
| | - Meiran Feng
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou 515063, China
| | - Xueer Zhu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou 515063, China
| | - Qinyu Zhou
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou 515063, China
| | - Shanshan Zeng
- Central Laboratory, Shantou University, Shantou 515063, China
| | - Yifu Huang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou 515063, China
| | - Hefeng Zhang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou 515063, China
- Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Jieyang, Guangdong Province 522000, China
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153
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Li X, Zheng M, Wang H, Meng Y, Wang D, Liu L, Zeng Q, Xu X, Zhou D, Sun H. Synthesis of carbon dots with strong luminescence in both dispersed and aggregated states by tailoring sulfur doping. J Colloid Interface Sci 2021; 609:54-64. [PMID: 34894555 DOI: 10.1016/j.jcis.2021.11.179] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/17/2021] [Accepted: 11/28/2021] [Indexed: 02/06/2023]
Abstract
Carbon dots (CDots), a class of environmentally friendly carbon-based luminescent nanomaterial, have been applied in a wide variety of fields, including bioimaging and light-emitting diodes (LEDs). Prior to these applications, however, CDots usually require modifications because some of its limitations (e.g., the aggregation-induced luminescence quenching) make it difficult to apply in solid state. In order to realize CDots-based multiple applications simultaneously, this paper examines how CDots with a strong greenish-yellow fluorescence in both dispersed and aggregated states are prepared by microwave-assisted heating salicylic acid and thiourea. Based on control testing and the analysis of density functional theory calculations, S element from thiourea is doped into CDots and proves to be critical in governing the photoluminescence (PL) emission color. Featured with excellent biocompatibility and photostability, the dispersed CDots with photoluminescence quantum yields (32%) are able to function as a biological imaging reagent in vitro and in vivo without any side effect. Furthermore, the aggregated CDots also exhibit high photoluminescence quantum yields (26%) and remarkable resistance to organic solvent. These advantages will ensure that S-doped CDots can be applied as a color conversion layer so that white LEDs with different Commission International de L'Eclariage coordinates and tunable color temperature can be fabricated.
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Affiliation(s)
- Xianjing Li
- Hospital of Stomatology, Jilin University, Changchun 130021, PR China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun 130021, PR China
| | - Mengdan Zheng
- Hospital of Stomatology, Jilin University, Changchun 130021, PR China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun 130021, PR China
| | - Haijing Wang
- Department of Chemistry, Durham University, Durham DH1 3LE, UK
| | - Yuan Meng
- School and Hospital of Stomatology, China Medical University, Shenyang 110122, PR China
| | - Duan Wang
- Hospital of Stomatology, Jilin University, Changchun 130021, PR China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun 130021, PR China
| | - Lili Liu
- Hospital of Stomatology, Jilin University, Changchun 130021, PR China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun 130021, PR China
| | - Qinghui Zeng
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, PR China
| | - Xiaowei Xu
- Hospital of Stomatology, Jilin University, Changchun 130021, PR China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun 130021, PR China.
| | - Ding Zhou
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, PR China.
| | - Hongchen Sun
- Hospital of Stomatology, Jilin University, Changchun 130021, PR China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun 130021, PR China.
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154
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Wang Z, Jiang N, Liu M, Zhang R, Huang F, Chen D. Bright Electroluminescent White-Light-Emitting Diodes Based on Carbon Dots with Tunable Correlated Color Temperature Enabled by Aggregation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2104551. [PMID: 34729915 DOI: 10.1002/smll.202104551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/03/2021] [Indexed: 05/09/2023]
Abstract
Carbon dots (CDs) as one of the most promising carbon-based nanomaterials are inspiring extensive research in optoelectronic applications. White-light-emitting diodes (WLEDs) with tunable correlated color temperatures (CCTs) are crucial for applications in white lighting. However, the development of high-performance CDs-based electroluminescent WLEDs, especially those with adjustable CCTs, remains a challenge. Herein, white CDs-LEDs with CCTs from 2863 to 11 240 K are successfully demonstrated by utilizing aggregation-induced emission red-shifting and broadening of CDs. As a result, a series of warm white, pure white, and cold white CDs-LEDs are realized with adjustable emissions in sequence along the blackbody radiation curve. These CDs-LEDs reach maximum brightness and external quantum efficiency up to 1414-4917 cd m-2 and 0.08-0.87%, respectively, which is among the best performances of white CDs-LEDs. To the best of the authors' knowledge, this is the first time that CCT-tunable white electroluminescent CDs-LEDs are demonstrated through controlling the aggregation degrees of CDs.
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Affiliation(s)
- Zhibin Wang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
| | - Naizhong Jiang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Menglong Liu
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Ruidan Zhang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
| | - Feng Huang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
| | - Daqin Chen
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
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155
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Wang Z, Liu Q, Leng J, Liu H, Zhang Y, Wang C, An W, Bao C, Lei H. The green synthesis of carbon quantum dots and applications for sulcotrione detection and anti-pathogen activities. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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156
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An Y, Liu C, Li Y, Chen M, Zheng Y, Tian H, Shi R, He X, Lin X. Application of high-efficiency green fluorescent carbon dots prepared by acid catalysis in multicolour LEDs. RSC Adv 2021; 11:38033-38039. [PMID: 35498082 PMCID: PMC9044061 DOI: 10.1039/d1ra07280c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/18/2021] [Indexed: 11/21/2022] Open
Abstract
Acidic reagents play an important role in the preparation of carbon dots (CDs). Therefore, we prepared efficient green fluorescent CDs by potassium bisulfate, acetic acid and hydrochloric acid catalysis and discussed why the acid catalyst induced a fluorescence redshift and improved the quantum yield of the CDs. Furthermore, the concentration-dependent photoluminescence behaviour of the CDs was characterized. CD/PVA composites emitting green to yellow light were obtained by exploiting the fluorescence tunability of CDs. Based on different light-emitting diode substrates, green, yellow and white light-emitting diodes with excellent performance were prepared.
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Affiliation(s)
- Yulong An
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China
| | - Can Liu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University Kunming China
| | - Yan Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China
| | - Menglin Chen
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China
| | - Yunwu Zheng
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University Kunming China
| | - Hao Tian
- Agro-products Processing Research Institute, Yunnan Academy of Agricultural Sciences Kunming China
| | - Rui Shi
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China
| | - Xiahong He
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China
| | - Xu Lin
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University Kunming China
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157
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Wan J, Zhang X, Fu K, Zhang X, Shang L, Su Z. Highly fluorescent carbon dots as novel theranostic agents for biomedical applications. NANOSCALE 2021; 13:17236-17253. [PMID: 34651156 DOI: 10.1039/d1nr03740d] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
As an emerging fluorescent nanomaterial, carbon dots (CDs) exhibit many attractive physicochemical features, including excellent photoluminescence properties, good biocompatibility, low toxicity and the ability to maintain the unique properties of the raw material. Therefore, CDs have been intensively pursued for a wide range of applications, such as bioimaging, drug delivery, biosensors and antibacterial agents. In this review, we systematically summarize the synthesis methods of these CDs, their photoluminescence mechanisms, and the approaches for enhancing their fluorescence properties. Particularly, we summarize the recent research on the synthesis of CDs from drug molecules as raw materials and introduce the representative application aspects of these fascinating CDs. Finally, we look into the future direction of CDs in the biomedical field and discuss the challenges encountered in the current development.
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Affiliation(s)
- Jiafeng Wan
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
| | - Xiaoyuan Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
| | - Kun Fu
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
| | - Xin Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
| | - Li Shang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Shaanxi Joint Laboratory of Graphene (NPU), Xi'an 710072, China.
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
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158
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Su YH, Huang HH, Tseng CC, Tsai HJ, Hsu WK. Production of nitrogen-doped carbon quantum dots with controllable emission wavelength, excellent sensing of Fe 3+ in aqueous solution, and potential application for stealth quick response coding in the visible regime. RSC Adv 2021; 11:34117-34124. [PMID: 35497274 PMCID: PMC9042367 DOI: 10.1039/d1ra05106g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/27/2021] [Indexed: 01/10/2023] Open
Abstract
Nitrogen-doped carbon quantum dots (N-CQDs) exhibit a high quantum yield with controllable emission wavelength and intensity in the blue-green regime. N-CQDs were tested and determined to be thermally and optically stable during 150 °C heat treatment and prolonged UV irradiation. Potential applications of N-CQDs were demonstrated, including excellent Fe3+ sensing in aqueous solution, fluorescent polymer fibres, and stealth quick response coding at visible wavelengths.
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Affiliation(s)
- Yu-Hsun Su
- Department of Materials Science and Engineering, High Entropy Materials Centre, National Tsing-Hua University Hsinchu 300044 Taiwan
| | - Hsuan-Hao Huang
- Department of Materials Science and Engineering, High Entropy Materials Centre, National Tsing-Hua University Hsinchu 300044 Taiwan
| | - Chao-Chi Tseng
- Department of Materials Science and Engineering, High Entropy Materials Centre, National Tsing-Hua University Hsinchu 300044 Taiwan
| | - Hsin-Jung Tsai
- Department of Materials Science and Engineering, High Entropy Materials Centre, National Tsing-Hua University Hsinchu 300044 Taiwan
| | - Wen-Kuang Hsu
- Department of Materials Science and Engineering, High Entropy Materials Centre, National Tsing-Hua University Hsinchu 300044 Taiwan
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159
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Zhao H, Jin X, Zhou H, Yang Z, Bai H, Yang J, Li Y, Ma Y, She M. Fabrication of carbon dots for sequential on-off-on determination of Fe 3+ and S 2- in solid-phase sensing and anti-counterfeit printing. Anal Bioanal Chem 2021; 413:7473-7483. [PMID: 34647132 DOI: 10.1007/s00216-021-03709-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/15/2021] [Accepted: 09/30/2021] [Indexed: 11/26/2022]
Abstract
Glutathione and 2-aminopyridine are used as carbon sources to prepare carbon dots (CDs) by a one-step hydrothermal reaction. The results show that the average particle diameter of CDs is 8.64 nm with uniform size distribution and the fluorescence quantum yield is 13.62%. We further demonstrate that novel CDs possess highly selective sensing of Fe3+ from 0.2 to 200 μM with a low detection limit (0.194 μM). Meanwhile, the fluorescence of CDs can be repeated many times by the addition of S2-. Moreover, the CDs are used for biological imaging of living cells with well cell penetrability and low toxicity. Furthermore, it is successfully applied for anti-counterfeiting and information encryption. More interestingly, it can be doped with hydrogel and filter paper to prepare solid-phase sensors exhibiting high sensitivity and fast response, demonstrating their tremendous potential for the simple, rapid, and low-cost monitoring of Fe3+ and S2-.
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Affiliation(s)
- Huaqi Zhao
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, Shaanxi, China
| | - Xilang Jin
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, Shaanxi, China.
| | - Hongwei Zhou
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, Shaanxi, China
| | - Zheng Yang
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, People's Republic of China
| | - Haiyan Bai
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, Shaanxi, China
| | - Jin Yang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, Shaanxi, China
| | - Yulong Li
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, Shaanxi, China
| | - Yiting Ma
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, Shaanxi, China
| | - Mengyao She
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; Biomedicine Key Laboratory of Shaanxi Province; Lab of Tissue Engineering, the College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, Shaanxi Province, 710069, People's Republic of China.
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160
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Huo X, Shen H, Liu R, Shao J. Solvent Effects on Fluorescence Properties of Carbon Dots: Implications for Multicolor Imaging. ACS OMEGA 2021; 6:26499-26508. [PMID: 34661005 PMCID: PMC8515583 DOI: 10.1021/acsomega.1c03731] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/10/2021] [Indexed: 05/25/2023]
Abstract
Carbon dots (CDs) are synthesized by the solvothermal method with four kinds of solvents including water, dimethylformamide (DMF), ethanol, and acetic acid (AA). The aqueous solutions of the above CDs emit multiple colors of blue (470 nm), green (500 nm), yellow (539 nm), and orange (595 nm). The structures, sizes, and chemical composition of the CDs are characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), X-ray diffraction (XRD), Fourier transform infrared (FTIR), and X-ray photoelectron spectroscopy (XPS). The optical properties of multicolored CDs are analyzed by UV-vis absorption and photoluminescence (PL) spectra. It has been revealed that DMF is the key solvent to synthesized CDs for the red shift of fluorescence emission, which could be enhanced by adding an AA solvent. The structures of functional groups such as the contents of graphitic N in carbon cores and oxygen-containing functional groups on the surface of CDs are affected by these four solvents. According to the oxidation and selective reduction of NaBH4, the implication for multicolor imaging has been discussed based on the COOH, C-O-C, and C=O functional groups.
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Affiliation(s)
- Xiaomin Huo
- College
of Materials Science and Technology, Jiangsu Key Laboratory of Materials
and Technology for Energy Conversion, Nanjing
University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
- Dalian
Inspection, Testing and Certification Group
Co., Ltd., Dalian 116021, P. R. China
| | - Honglie Shen
- College
of Materials Science and Technology, Jiangsu Key Laboratory of Materials
and Technology for Energy Conversion, Nanjing
University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Rui Liu
- College
of Materials Science and Technology, Jiangsu Key Laboratory of Materials
and Technology for Energy Conversion, Nanjing
University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Jing Shao
- Department
of Material Physics, Faculty of Science, Bengbu University, Bengbu 233030, P. R. China
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161
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Dong C, Xu M, Wang S, Ma M, Akakuru OU, Ding H, Wu A, Zha Z, Wang X, Bi H. Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick. J Nanobiotechnology 2021; 19:299. [PMID: 34592992 PMCID: PMC8482577 DOI: 10.1186/s12951-021-01029-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 09/07/2021] [Indexed: 11/23/2022] Open
Abstract
Long-lasting moisture retention is a huge challenge to humectants, and effective methods or additives for promote these functions are limited, especially nano-additives. Carbon dots (CDs) have attracted increasing research interest due to its ultra-small size, excellent optical properties and low toxicity, etc. However, most of researches have been focused on the photoexcited CDs and its subsequent photophysical and chemical processes, such as photoluminescence, photodynamic, photothermal and photocatalytic behavior. The intrinsic chemo-physical properties of the pristine CDs are not fully explored. Here, we report an excellent moisture retention capability of a new carmine cochineal-derived CDs (Car-CDs) for the first time. The relationship between the structure of Car-CDs and its moisture retention capability is revealed. More interestingly, the effective applications of Car-CDs in moisturizing lipstick are demonstrated. This work expands the research and application of CDs into a broad, new area, potentially in skin care.
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Affiliation(s)
- Chen Dong
- School of Chemistry and Chemical Engineering, Key Laboratory of Environment Friendly Polymer Materials of Anhui Province, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, 230601, China
| | - Mingsheng Xu
- School of Chemistry and Chemical Engineering, Key Laboratory of Environment Friendly Polymer Materials of Anhui Province, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, 230601, China
| | - Shuna Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Environment Friendly Polymer Materials of Anhui Province, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, 230601, China
| | - Menghui Ma
- School of Chemistry and Chemical Engineering, Key Laboratory of Environment Friendly Polymer Materials of Anhui Province, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, 230601, China
| | - Ozioma U Akakuru
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Haizhen Ding
- School of Chemistry and Chemical Engineering, Key Laboratory of Environment Friendly Polymer Materials of Anhui Province, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, 230601, China
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516003, China.
| | - Zhengbao Zha
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
| | - Xuemei Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Environment Friendly Polymer Materials of Anhui Province, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, 230601, China
| | - Hong Bi
- School of Chemistry and Chemical Engineering, Key Laboratory of Environment Friendly Polymer Materials of Anhui Province, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, 230601, China.
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162
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Kalsi T, Kumar P. Cd 1-xMg xS CQD thin films for high performance and highly selective NIR photodetection. Dalton Trans 2021; 50:12708-12715. [PMID: 34545866 DOI: 10.1039/d1dt01547h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of high-performance and highly selective NIR photodetectors (PDs) using wide band gap semiconductors is a significant field of research in the present scenario. Herein, cost effective and easy fabrication of NIR PDs is demonstrated by employing the thin films of Cd1-xMgxS (x = 0, 0.01, 0.02, 0.03, 0.04 and 0.05) colloidal quantum dots (CQDs). The influence of doping on the transport behaviour of Cd1-xMgxS CQD films was investigated by device performance under laser light illumination at various wavelengths ranging from 405 nm to 782 nm. An improvement in the photoresponsivity of the material (CdS) beyond its intrinsic absorption spectral range due to the incorporation of the dopant is noticed. In spite of the cost effective and easy fabrication process without the requirement of any rigorous synthesis procedure, the devices presented here demonstrate competitive figures of merit to those that are designed with complex structures and tedious procedures. The performance parameters viz response time, responsivity, photosensitivity, quantum efficiency, and specific detectivity were improved as a consequence of Mg doping and attained a maximum value of 110 ms, ∼26.9 A W-1, ∼4.7 × 104%, ∼41.23% and ∼3.45 × 1013 Jones, respectively. Besides, the sensing range of the PDs can be tuned from visible (650 nm) to NIR (782 nm) with a huge improvement in selectivity by incorporation of Mg.
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Affiliation(s)
- Tania Kalsi
- Department of Nanoscience and Materials, Central University of Jammu, Jammu-181143, India.
| | - Pragati Kumar
- Department of Nanoscience and Materials, Central University of Jammu, Jammu-181143, India.
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163
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Chen W, Shen J, Wang Z, Liu X, Xu Y, Zhao H, Astruc D. Turning waste into wealth: facile and green synthesis of carbon nanodots from pollutants and applications to bioimaging. Chem Sci 2021; 12:11722-11729. [PMID: 34659707 PMCID: PMC8442693 DOI: 10.1039/d1sc02837e] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/01/2021] [Indexed: 11/25/2022] Open
Abstract
In an effort to turn waste into wealth, Reactive Red 2 (RR2), a common and refractory organic pollutant in industrial wastewater, has been employed for the first time as a precursor to synthesize carbon nanodots (CNDs) by a facile, green and low-cost route, without utilization of any strong acids or other oxidizers. The detailed characterizations have confirmed that the synthesized CNDs exhibit good water dispersibility, with a mean particle size of 2.43 nm and thickness of 1-3 layers. Importantly, the excellent fluorescence properties and much reduced biotoxicity of the CNDs confer its potential applications in further biological imaging, which has been successfully verified in both in vitro (cell culture) and in vivo (zebrafish) model systems. Thus, it is demonstrated that the synthesized CNDs exhibit nice biocompatibility and fluorescence properties for bioimaging. This work not only provides a novel economical and environmentally friendly approach in recycling a chemical pollutant, but also greatly promotes the potential application of CNDs in biological imaging.
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Affiliation(s)
- Weifeng Chen
- College of Materials and Chemical Engineering, Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University Yichang Hubei 443002 P. R. China
| | - Jialu Shen
- College of Materials and Chemical Engineering, Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University Yichang Hubei 443002 P. R. China
| | - Zuo Wang
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University Lanzhou Gansu 730000 P. R. China
| | - Xiang Liu
- College of Materials and Chemical Engineering, Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University Yichang Hubei 443002 P. R. China
| | - Yanyi Xu
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University Lanzhou Gansu 730000 P. R. China
| | - Haiyu Zhao
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University Lanzhou Gansu 730000 P. R. China
| | - Didier Astruc
- ISM, UMR CNRS No. 5255, Univ. Bordeaux 351 Cours de la Libération 33405 Talence Cedex France
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164
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An Y, Lin X, Guo Z, Yin Q, Li Y, Zheng Y, Shi Z, Zhang W, Liu C. Red Emission Carbon Dots Prepared by 1,4-Diaminonaphthalene for Light-Emitting Diode Application and Metal Ion Detection. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4716. [PMID: 34443238 PMCID: PMC8398855 DOI: 10.3390/ma14164716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/11/2021] [Accepted: 08/17/2021] [Indexed: 11/16/2022]
Abstract
Carbon dots (CDs), as the most important type of carbon materials, have been widely used in many fields because of their unique fluorescence characteristics and excellent properties of biocompatibility. In previous studies, the fluorescence of CDs was mainly concentrated in the blue and green, whereas the red fluorescence was relatively less. Herein, we prepared efficient red-emitting CDs from 1,4-diaminonaphthalene using solvothermal methods. We discussed the effects of different solvothermal solvents on CDs. The results show that CDs prepared with octane and acetone as reaction media have the best fluorescence properties. The CDs dispersed in different organic solvents exhibited tunable emission across a wide spectrum from 427 nm to 679 nm. We further demonstrated the application of red light-emitting diode (LED) optoelectronics and fluorescence detection of Fe3+ in aqueous solution.
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Affiliation(s)
- Yulong An
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China; (Y.A.); (Z.G.); (Q.Y.); (Y.L.)
| | - Xu Lin
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China; (Y.A.); (Z.G.); (Q.Y.); (Y.L.)
| | - Zewen Guo
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China; (Y.A.); (Z.G.); (Q.Y.); (Y.L.)
| | - Qitao Yin
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China; (Y.A.); (Z.G.); (Q.Y.); (Y.L.)
| | - Yan Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China; (Y.A.); (Z.G.); (Q.Y.); (Y.L.)
| | - Yunwu Zheng
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, China; (Y.Z.); (Z.S.); (W.Z.)
| | - Zhengjun Shi
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, China; (Y.Z.); (Z.S.); (W.Z.)
| | - Wuxian Zhang
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, China; (Y.Z.); (Z.S.); (W.Z.)
| | - Can Liu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China; (Y.A.); (Z.G.); (Q.Y.); (Y.L.)
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, China; (Y.Z.); (Z.S.); (W.Z.)
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165
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Wang K, Geng C, Wang F, Zhao Y, Ru Z. Urea-doped carbon dots as fluorescent switches for the selective detection of iodide ions and their mechanistic study. RSC Adv 2021; 11:27645-27652. [PMID: 35480658 PMCID: PMC9037827 DOI: 10.1039/d1ra04558j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 07/30/2021] [Indexed: 12/19/2022] Open
Abstract
A facile and green strategy for the fabrication of fluorescent urea-doped carbon dots (N-CDs) has been explored. Significantly, the fluorescent N-CDs could recognize iodide ions (I-) with high selectivity, and their photoluminescence could be efficiently quenched by the addition of I-. The sensitivity analysis for I- indicated a linear relationship in the range from 12.5 to 587 μM with the detection limit as low as 0.47 μM. Furthermore, the I- induced fluorescence (FL) quenching mechanism was investigated employing a combination of techniques, including UV-vis/fluorescence spectroscopy, Density Functional Theory (DFT) calculation, TEM and time-resolved fluorescence decay measurements. The DFT calculation results demonstrated that the amino- and amide groups of N-CDs play a significant role in iodide recognition through the formation of multiple N-H⋯I-, C-H⋯I- and C([double bond, length as m-dash]O)N-H⋯I- interactions with I-. The TEM experiment confirmed the aggregation process when I- was added to the N-CDs solution. Moreover, the radiative decay rate of N-CDs, which was first measured and reported the kinetic behaviors of the FL-quenching process, decreased from 3.30 × 107 s-1 to 1.95 × 107 s-1 after the coordination with I- ions. The reduced lifetime demonstrated that the excited energy dissipation led to a dynamic quenching process. Therefore, such carbon materials can function as effective fluorescent switches for the selective detection of I- ions.
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Affiliation(s)
- Kai Wang
- School of Chemical and Environmental Engineering, Anyang Institute of Technology Anyang 455000 China
| | - Cuihuan Geng
- School of Chemical and Environmental Engineering, Anyang Institute of Technology Anyang 455000 China
| | - Fang Wang
- School of Chemical and Environmental Engineering, Anyang Institute of Technology Anyang 455000 China
| | - Yajun Zhao
- Teaching and Research Office of Neihuang Country Anyang 456300 China
| | - Zongling Ru
- School of Materials Science and Engineering, Anyang Institute of Technology Anyang 455000 China
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166
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An Y, Lin X, Zhou Y, Li Y, Zheng Y, Wu C, Xu K, Chai X, Liu C. Red, green, and blue light-emitting carbon dots prepared from o-phenylenediamine. RSC Adv 2021; 11:26915-26919. [PMID: 35480021 PMCID: PMC9037611 DOI: 10.1039/d1ra02298a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 08/03/2021] [Indexed: 11/21/2022] Open
Abstract
Carbon dots (CDs), as the most important type of carbon-based material, have been widely used in many fields because of their excellent properties. In particular, multicolor fluorescent CDs with high photoluminescence quantum yield are the focus of active research. Herein, red, green and blue CDs (RGB CDs) were successfully synthesized by a solvothermal method from o-phenylenediamine under different reaction conditions. The RGB-CDs have stable optical properties and significant photoluminescence characteristics. Structural and elemental analyses propose a conjugated structure and the surface state of the CDs as the main causes for the different color emission of RGB-CDs. In addition, a white fluorescent CD solution was prepared by mixing these multicolor fluorescent CDs in appropriate proportions.
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Affiliation(s)
- Yulong An
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Material Science & Engineering, Southwest Forestry University Kunming China
| | - Xu Lin
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Material Science & Engineering, Southwest Forestry University Kunming China
| | - Yuxi Zhou
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Material Science & Engineering, Southwest Forestry University Kunming China
| | - Yan Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Material Science & Engineering, Southwest Forestry University Kunming China
| | - Yunwu Zheng
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University Kunming China
| | - Chunhua Wu
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University Kunming China
| | - Kaimeng Xu
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University Kunming China
| | - Xijuan Chai
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University Kunming China
| | - Can Liu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, College of Material Science & Engineering, Southwest Forestry University Kunming China
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University Kunming China
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167
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Bhuyan R, Bramhaiah K, Bhattacharyya S. Specific locations of blue and green-emitting units in dual emissive carbon dots and their reversible emitting properties due to switchable inter-chromophoric interactions. J Colloid Interface Sci 2021; 605:364-372. [PMID: 34332410 DOI: 10.1016/j.jcis.2021.07.119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/03/2021] [Accepted: 07/22/2021] [Indexed: 12/14/2022]
Abstract
Carbon dots (CDs) are the unique class of luminescent nanomaterials consist of various chromophoric units heterogeneously distributed throughout the nanoparticle, resulting intriguing multistate emissive properties. Herein, we have critically investigated the specific locations of the blue and green-emitting centers inside dual emissive CDs by steady-state and time-resolved polarized emission study. It is further clarified by a temperature-dependent fluorescence study for both the emitting domains. Results suggest that the blue chromophoric units are located at the interior part of CDs, while green units are mostly at the exterior region. Furthermore, we have investigated the solvent-dependent inter-chromophoric interactions between the two emissive domains by the Time-Resolved Area Normalized Emission Spectroscopy (TRANES). Results suggest that at polar aprotic solvent acetone, time-dependent positive evolution of green-emitting states and negative evolution of blue emissive domains have been observed. This reversible emitting properties evolve due to the excited state energy migration from blue emissive domains to green emissive domains at polar aprotic medium, while in the case of polar protic solvent water, this phenomenon is missing. This switchable inter-chromophoric interaction are correlated further with the inter-particle interactions of CDs.
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Affiliation(s)
- Rahul Bhuyan
- Indian Institute of Science Education and Research, Govt. ITI Building (transit campus), Engg. School Road, Berhampur, Odisha 760010 India
| | - Kommula Bramhaiah
- Indian Institute of Science Education and Research, Govt. ITI Building (transit campus), Engg. School Road, Berhampur, Odisha 760010 India
| | - Santanu Bhattacharyya
- Indian Institute of Science Education and Research, Govt. ITI Building (transit campus), Engg. School Road, Berhampur, Odisha 760010 India.
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168
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Lu Z, Giles LW, Tabor RF, Teo BM. Norepinephrine derived carbon dots for live-cell imaging and effective hemoglobin determination. SOFT MATTER 2021; 17:6765-6772. [PMID: 34196338 DOI: 10.1039/d1sm00791b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Recently, carbon dots (CDs) have attracted wide attention for their potential use as fluorescence probes in biological and analytical chemistry due to their great stability and high fluorescence quantum yields. In our work, norepinephrine (NE)-derived CDs with green luminescence and an average size of 10 nm were fabricated using a one-step hydrothermal route. As-prepared CDs show a strong emission at a wavelength of 520 nm when excited at 420 nm, and demonstrate pH and concentration dependent fluorescence behaviour. Multiple functional groups on the CDs allow their protonation/deprotonation and thus alter fluorescence intensity and peak position in different pH conditions. Prepared CDs show significant potential to be used as a live-cell imaging agent with long-term photostability. Furthermore, a simple but effective method to determine the concentration of hemoglobin (Hb) in diluted human blood samples was also developed based on the inner filter effect (IFE). The method demonstrates good linearity from 0.01-10 μM, with a limit of determination (LOD) of 52 nM.
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Affiliation(s)
- Zhenzhen Lu
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
| | - Luke W Giles
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
| | - Rico F Tabor
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
| | - Boon Mian Teo
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
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169
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Zhao Y, Ou C, Yu J, Zhang Y, Song H, Zhai Y, Tang Z, Lu S. Facile Synthesis of Water-Stable Multicolor Carbonized Polymer Dots from a Single Unconjugated Glucose for Engineering White Light-Emitting Diodes with a High Color Rendering Index. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30098-30105. [PMID: 34143601 DOI: 10.1021/acsami.1c07444] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Tunable emission carbonized polymer dots (CPDs) are highly desirable for the preparation of optoelectronic devices, especially white light-emitting diodes (WLEDs). In most available studies, polychromatic CPDs are synthesized using aromatic molecules as precursors. However, few studies report the successful synthesis of polychromatic CPDs using two or more unconjugated precursors. In this work, we prepare multicolor fluorescent CPDs from a single unconjugated precursor, glucose, via a hydrothermal reaction. By controlling the particle size and degree of graphitization of the synthesized CPDs, their emission wavelength can be tuned in the range 440-625 nm (i.e., almost the entire visible region). Furthermore, the CPDs can be used to construct LEDs of varying colors, including WLEDs (CIE coordinates: 0.34, 0.36) with the correlated color temperature and color rendering index of 4997 K and 92.69, respectively. In brief, the strategy proposed in this study successfully converts unconjugated glucose into high-performance LEDs with great application potential.
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Affiliation(s)
- Yingnan Zhao
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Cailing Ou
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Jingkun Yu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Yongqiang Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Haoqiang Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Yunpu Zhai
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Zhiyong Tang
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450001, China
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Siyu Lu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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170
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Lai Z, Ye J, Xiong J. Energy transfer processes and structure of carboxymethyl cellulose-Tb/Eu nanocomplexes with color-tunable photoluminescence. Carbohydr Polym 2021; 271:118386. [PMID: 34364585 DOI: 10.1016/j.carbpol.2021.118386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/22/2021] [Accepted: 06/24/2021] [Indexed: 11/18/2022]
Abstract
A series of fluorescent nanocomplexes of carboxymethyl cellulose (CMC)/Terbium (Tb)- Europium (Eu) were successfully synthesized without introducing a second ligand. By adjusting the concentration of the coordinated ions, these nanocomplexes exhibit favorably visibly tunable luminescence properties with colors being able to change from green to red. The XPS analysis demonstrates the formation Tb(III)-O2- and Eu(III)-O2- between OH and COO- in CMC and Tb3+ or Eu3+ ions, which is advantage for light absorption by UV-Vis spectroscopy and fluorescence spectroscopy. The ligand CMC plays a role in coordinating with terbium and europium ions, but also serves as an energy donor to these metal ions by antenna effect. Moreover, the energy transfer also occurred from terbium ions to europium ions in CMC matrix, which is responsible for the tunable luminescence properties of these complexes.
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Affiliation(s)
- Zhibin Lai
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jun Ye
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jian Xiong
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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171
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Yang X, Sui L, Wang B, Zhang Y, Tang Z, Yang B, Lu S. Red-emitting, self-oxidizing carbon dots for the preparation of white LEDs with super-high color rendering index. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1033-6] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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172
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Zhao Y, He B, Liu E, Li J, Wang L, Chen S, Chen Y, Tan Z, Ng KW, Wang S, Tang Z, Qu S. Aluminum-Based Surface Polymerization on Carbon Dots with Aggregation-Enhanced Luminescence. J Phys Chem Lett 2021; 12:4530-4536. [PMID: 33961442 DOI: 10.1021/acs.jpclett.1c01240] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Aggregation-induced luminescence quenching of carbon nanodots (CDs) is the main obstacle for their applications in solid-state light emitting devices. Herein, we developed a one-step synthesis of solid-state emissive CDs with surface aluminum-based polymerization by adding AlCl3 in citric acid and urea via a microwave-heating dehydration process. Due to the strong coordination ability of Al ions with N and O atoms, considerable steric hindrance of Al-based cross-linked polymerization was introduced on the surface of the CDs, which not only avoided aggregation of the green emissive carbon cores but also facilitated efficient energy transfer from the blue emissive polymerized surface to the green emissive carbon cores in aggregates, leading to enhanced green emissions with a photoluminescence quantum yield (PLQY) of 72.7% in the solid state.
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Affiliation(s)
- Yunyang Zhao
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Bingchen He
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Enshan Liu
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Jielei Li
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Liming Wang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Shi Chen
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Yeqing Chen
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Kar Wei Ng
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Shuangpeng Wang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Zikang Tang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
| | - Songnan Qu
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa 999078, Macau, SAR P. R. China
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173
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Mohajer F, Mohammadi Ziarani G, Badiei A. New advances on Au-magnetic organic hybrid core-shells in MRI, CT imaging, and drug delivery. RSC Adv 2021; 11:6517-6525. [PMID: 35423209 PMCID: PMC8694923 DOI: 10.1039/d1ra00415h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 01/20/2021] [Indexed: 12/18/2022] Open
Abstract
Magnetic nanoparticles have been widely studied for various scientific and technological applications such as magnetic storage media, contrast agents for magnetic resonance imaging (MRI), biolabelling, separation of biomolecules, and magnetic-targeted drug delivery. A new strategy on Au-magnetic nano-hybrid core-shells was applied in MRI, CT imaging, and drug delivery, which has been received much attention nowadays. Herein, the designing of different magnetic core-shells with Au in MRI and cancer treatment is studied.
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Affiliation(s)
- Fatemeh Mohajer
- Department of Physics and Chemistry, Faculty of Science, University of Alzahra Tehran Iran +98 21 8041575
| | - Ghodsi Mohammadi Ziarani
- Department of Physics and Chemistry, Faculty of Science, University of Alzahra Tehran Iran +98 21 8041575
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran Tehran Iran
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174
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Li Y, Liu C, An Y, Chen M, Zheng Y, Tian H, Shi R, He X, Lin X. Synthesis of color-tunable tannic acid-based carbon dots for multicolor/white light-emitting diodes. NEW J CHEM 2021. [DOI: 10.1039/d1nj04393e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multicolor luminescent carbon dots were successfully prepared by a solvothermal method using tannic acid (TA) and phthalaldehyde.
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Affiliation(s)
- Yan Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, Kunming, China
| | - Can Liu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, Kunming, China
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
| | - Yulong An
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, Kunming, China
| | - Menglin Chen
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, Kunming, China
| | - Yunwu Zheng
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, Kunming, China
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
| | - Hao Tian
- Agro-products Processing Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Rui Shi
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, Kunming, China
| | - Xiahong He
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, Kunming, China
| | - Xu Lin
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, Kunming, China
- Key Laboratory of State Forestry Administration for Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
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