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Wu J, Chen G, Jia Y, Ji C, Wang Y, Zhou Y, Leblanc RM, Peng Z. Carbon dot composites for bioapplications: a review. J Mater Chem B 2022; 10:843-869. [DOI: 10.1039/d1tb02446a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent advancements in the synthesis of carbon dot composites and their applications in biomedical fields (bioimaging, drug delivery and biosensing) have been carefully summarized. The current challenges and future trends of CD composites in this field have also been discussed.
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Affiliation(s)
- Jiajia Wu
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Gonglin Chen
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Yinnong Jia
- Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, School of Pharmaceutical Sciences, Kunming Medical University, Kunming 650500, People's Republic of China
| | - Chunyu Ji
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Yuting Wang
- Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, School of Pharmaceutical Sciences, Kunming Medical University, Kunming 650500, People's Republic of China
| | - Yiqun Zhou
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, USA
| | - Roger M. Leblanc
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, USA
| | - Zhili Peng
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
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52
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Carbon dots embedded nanofiber films: Large-scale fabrication and enhanced mechanical properties. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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53
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Wang L, Wang B, Liu E, Zhao Y, He B, Wang C, Xing G, Tang Z, Zhou Y, Qu S. Polyetherimide functionalized carbon dots with enhanced red emission in aqueous solution for bioimaging. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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54
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Zheng Z, Liu Z, Ding Y, Chen M, Lv P, Tang A, Wang F, Guan L, Li X, Liang B. Structural Engineering toward High Monochromaticity of Carbon Dots-Based Light-Emitting Diodes. J Phys Chem Lett 2021; 12:12107-12113. [PMID: 34910877 DOI: 10.1021/acs.jpclett.1c03786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Monochromaticity for light-emitting diodes (LEDs) is an important parameter. However, carbon dots-based light-emitting diodes (CDs-LEDs) usually suffer from broad emission, which limits the development of this material. In this work, high-quality carbon dots (CDs) with a quantum yield of 16.2% were synthesized. When they were mixed with poly(N-vinyl carbazole) (PVK) to form a homogeneous film, the solid-state fluorescence of CDs was realized. After fabrication and systematic optimization of the device, the full width at half-maximum (fwhm) of EL spectra could be narrowed to 64 nm in comparison with the fwhm of 77 nm for PL, demonstrating that structural engineering is an effective approach for improving the color purity of CDs-LEDs. Meanwhile, the performance of the devices is improving. The obtained CDs-LEDs display high monochromaticity with a maximum luminance of 681 cd/m2. This work provides a new way to optimize the monochromaticity and performance of CDs-LEDs.
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Affiliation(s)
- Zhiyong Zheng
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Zhenyang Liu
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Yanan Ding
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Mingjun Chen
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Peiwen Lv
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiaotong University, Beijing 100044, China
| | - Aiwei Tang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiaotong University, Beijing 100044, China
| | - Fenghe Wang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Li Guan
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Xu Li
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Baolai Liang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
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55
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Zhang T, Wang X, Wu Z, Yang T, Zhao H, Wang J, Huang H, Liu Y, Kang Z. Highly stable and bright blue light-emitting diodes based on carbon dots with a chemically inert surface. NANOSCALE ADVANCES 2021; 3:6949-6955. [PMID: 36132364 PMCID: PMC9417944 DOI: 10.1039/d1na00576f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/03/2021] [Indexed: 05/14/2023]
Abstract
The manufacture of blue light-emitting diodes (LEDs) has always been a tough problem to solve in the display and illumination fields. Inorganic/organic semiconductors and carbon dots (CDs) with a wide band gap still face obstacles such as a low external quantum efficiency (EQE) and poor stability. Herein, we synthesized highly stable and blue emission CDs with a chemically inert surface, and the photoluminescence (PL) peak (in ultra-pure water) of which is located at 446 nm with an absolute PL quantum yield (PLQY) of 26.4%. The LEDs based blue emission CDs exhibit an electroluminescence (EL) peak located at 456 nm and a high brightness of 223 cd m-2 with an EQE of 0.856%. The Commission Internationale del'Eclairage (CIE) coordinates are located at (0.21, 0.23) and the device lifetime with 65% brightness (T 65) reaches over 217 h because of the chemically inert surface of the CDs. The results mean the devices are the most stable CDs-LEDs reported to date. This work represents a novel route for the preparation of low cost, highly stable and very bright CDs-LEDs with a short wavelength emission.
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Affiliation(s)
- Tianyang Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
| | - Xiao Wang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
| | - Zhenyu Wu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
| | - Tianyu Yang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
| | - Han Zhao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
| | - Jiawei Wang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
| | - Hui Huang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
| | - Yang Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University Suzhou 215123 China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology Taipa 999078 Macau SAR China
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56
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Wang P, Ji H, Guo S, Zhang Y, Yan Y, Wang K, Xing J, Dong Y. One-pot synthesis of nuclear targeting carbon dots with high photoluminescence. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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57
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Lv A, Chen Q, Zhao C, Li S, Sun S, Dong J, Li Z, Lin H. Long-wavelength (red to near-infrared) emissive carbon dots: Key factors for synthesis, fluorescence mechanism, and applications in biosensing and cancer theranostics. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.06.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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58
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Selective coordination and localized polarization in graphene quantum dots: Detection of fluoride anions using ultra-low-field NMR relaxometry. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.05.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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59
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Blue-to-green manipulation of carbon dots from fluorescence to ultralong room-temperature phosphorescence for high-level anti-counterfeiting. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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60
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Zhang Y, Song H, Wang L, Yu J, Wang B, Hu Y, Zang SQ, Yang B, Lu S. Solid-State Red Laser with a Single Longitudinal Mode from Carbon Dots. Angew Chem Int Ed Engl 2021; 60:25514-25521. [PMID: 34549866 DOI: 10.1002/anie.202111285] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Indexed: 01/23/2023]
Abstract
Miniaturized solid-state lasers with a single longitudinal mode are vital for various photonic applications. Here we prepare red-emissive carbon dots (CDs) with a photoluminescence quantum yield (PLQY) of 65.5 % by combining graphitic nitrogen doping and surface modification. High-concentration doping alters the CDs' emission from blue to red, while the electron-donating groups and polymer coating on their surfaces improve the PLQY and photostability. The CDs exhibit excellent stimulated emission characteristics, with a low threshold of amplified spontaneous emission (ASE) and long gain lifetime. A planar microcavity with only one resonant mode, which fitted with the CDs' ASE peak, was constructed. Combining the CDs and microcavity produced a solid-state laser with a single longitudinal mode, a linewidth of 0.14 nm and a signal-to-noise ratio of 14.8 dB (Q∼4600). Our results will aid the development of colorful solid-state micro/nano lasers with potential use in practical photonics.
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Affiliation(s)
- Yongqiang Zhang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Haoqiang Song
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Lu Wang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Jingkun Yu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Boyang Wang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Yongsheng Hu
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
| | - Shuang-Quan Zang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Bai Yang
- State Key Lab of Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130012, China
| | - Siyu Lu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
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61
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Zhang Y, Song H, Wang L, Yu J, Wang B, Hu Y, Zang S, Yang B, Lu S. Solid‐State Red Laser with a Single Longitudinal Mode from Carbon Dots. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202111285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yongqiang Zhang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Haoqiang Song
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Lu Wang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Jingkun Yu
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Boyang Wang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Yongsheng Hu
- School of Physics and Microelectronics Zhengzhou University Zhengzhou 450001 China
| | - Shuang‐Quan Zang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Bai Yang
- State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China
| | - Siyu Lu
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
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62
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Fluorine-defects induced solid-state red emission of carbon dots with an excellent thermosensitivity. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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63
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Upconversion nanoparticles/carbon dots (UCNPs@CDs) composite for simultaneous detection and speciation of divalent and trivalent iron ions. Anal Chim Acta 2021; 1183:338973. [PMID: 34627508 DOI: 10.1016/j.aca.2021.338973] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/11/2021] [Accepted: 08/19/2021] [Indexed: 01/18/2023]
Abstract
In this study, the application of carbon dots (CDs) modified NaYF4:Yb, Er nanoparticles (UCNPs@CDs) as the fluorescent nanoprobe for simultaneous detection of Fe2+ and Fe3+ was investigated. Fe3+ quantification (5-80 μmol L-1) was achieved, as a result of Fe3+ induced fluorescence quenching of UCNPs@CDs at 434 nm (under the 336 nm excitation). The chelate (Fe2+-phen) formed by Fe2+ and 1,10-phenanthroline had a broad absorption centered at 510 nm, due to inner filter effect (IFE), Fe2+ quantification (4-120 μmol L-1) was achieved as a result of (Fe2+-phen) induced fluorescence quenching of UCNPs@CDs at 545 nm (under the 980 nm excitation). The resultant UCNPs@CDs probe, with excellent anti-interference capability, favorable fluorescence stability, and convincing performance in real sample analysis, showed promising application in simultaneous detection of Fe2+ and Fe3+.
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64
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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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65
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Chen X, Zhang X, Wu FG. Ultrasmall green-emitting carbon nanodots with 80% photoluminescence quantum yield for lysosome imaging. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.03.061] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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66
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Boronic acid-containing carbon dots array for sensitive identification of glycoproteins and cancer cells. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.03.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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67
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Recent progress in carbon-dots-based nanozymes for chemosensing and biomedical applications. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.03.078] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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68
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Li D, Ushakova EV, Rogach AL, Qu S. Optical Properties of Carbon Dots in the Deep-Red to Near-Infrared Region Are Attractive for Biomedical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102325. [PMID: 34365728 DOI: 10.1002/smll.202102325] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/07/2021] [Indexed: 05/02/2023]
Abstract
Carbon dots (CDs) represent a recently emerged class of luminescent materials with a great potential for biomedical theranostics, and there are a lot of efforts to shift their absorption and emission toward deep-red (DR) to near-infrared (NIR) region falling in the biological transparency window. This review offers comprehensive insights into the synthesis strategies aimed to achieve this goal, and the current approaches of modulating the optical properties of CDs over the DR to NIR region. The underlying mechanisms of their absorption, photoluminescence, and chemiluminescence, as well as the related photophysical processes of photothermal conversion and formation of reactive oxygen species are considered. The already available biomedical applications of CDs, such as in the photoacoustic imaging and photothermal therapy, photodynamic therapy, and their use as bioimaging agents and drug carriers are then shortly summarized.
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Affiliation(s)
- Di Li
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Elena V Ushakova
- Center of Information Optical Technologies, ITMO University, Saint Petersburg, 197101, Russia
| | - Andrey L Rogach
- Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP), City University of Hong Kong, Hong Kong SAR, 999077, P. R. China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, 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, Macau SAR, 999078, P. R. China
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69
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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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70
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Liang J, Li W, Chen J, Huang X, Liu Y, Zhang X, Shu W, Lei B, Zhang H. Antibacterial Activity and Synergetic Mechanism of Carbon Dots against Gram-Positive and -Negative Bacteria. ACS APPLIED BIO MATERIALS 2021; 4:6937-6945. [PMID: 35006993 DOI: 10.1021/acsabm.1c00618] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Carbon dots (CDs) with exciting photoluminescence characteristics, mild toxicity, and good biocompatibility are the research hotspots in biomedical application. Here, a compact antibacterial activity of CDs from levofloxacin hydrochloride is reported. The obtained CDs with an average size of 1.27 nm have fascinating antibacterial properties against both gram-positive and negative bacteria, with minimum inhibitory concentrations (MICs) of 64, 128, 64, and 128 μg/mL for Escherichia coli (E. coli), Pseudomonas aeruginosa (P. aeruginosa), Staphylococcus aureus (S. aureus), and Bacillus subtilis (B. subtilis). The antibacterial processes of CDs from extracellular to intracellular were demonstrated, including physical/chemical binding to membrane, wrapping on the surface, destruction of the cell membrane, and promoting reactive oxygen species (ROS) production into the cell without additional light or oxidant. Surprisingly, CDs exert moderate cytotoxicity on mammalian cells at the equivalent bactericidal concentration, in which the cell viability is more than 80% at 100 μg/mL of CDs. The investigation of antibacterial CDs may provide a useful avenue for further exploiting CD-based nano-bactericides in biomedical applications.
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Affiliation(s)
- Jiarong Liang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, P.R. China
| | - Wei Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, P.R. China.,Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, Maoming 525100, P.R. China
| | - Jianying Chen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, P.R. China
| | - Xiaoman Huang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, P.R. China
| | - Yingliang Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, P.R. China.,Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, Maoming 525100, P.R. China
| | - Xuejie Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, P.R. China.,Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, Maoming 525100, P.R. China
| | - Wei Shu
- Instrumental Analysis & Research Centre, South China Agricultural University, Guangzhou 510642, P.R. China
| | - Bingfu Lei
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, P.R. China.,Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, Maoming 525100, P.R. China
| | - Haoran Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, P.R. China
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71
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Gunjal DB, Walekar LS, Pawar SP, Anbhule PV, Mali MG, Dhulap VP, Sohn D, Mahajan PG, Lee KH, Shejwal RV, Kolekar GB. Sawmill waste derived carbon dots as a fluorescent probe for synthetic dyes in soft drinks. Sci Rep 2021; 11:17996. [PMID: 34504276 PMCID: PMC8429643 DOI: 10.1038/s41598-021-97552-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/07/2021] [Indexed: 12/03/2022] Open
Abstract
Herein, for the first time the carbon dots (CDs) were synthesized by reflux method from sawmill waste material. We also represent a novel strategy based on fluorescent CDs for determination of ponceau 4R and allura red dyes in soft drinks. Interestingly, both the dyes were sensitive and showed effective fluorescence quenching of the CDs owing to the interaction between them. The analytical applicability of CDs were evaluated for detection of both the dyes with a good linear relationship between the concentration range of 0.0 to 3.0 µg mL-1 and having detection limit 0.45 and 0.47 µg mL-1 for allura red and ponceau 4R dyes respectively. Meanwhile, the potential application of this novel fluorescent probe for dyes determination in real samples was validated in different soft drink samples with good accuracy and precision. Thus, these findings provides new insights for the potential risk assessment of both the dyes. Moreover, CDs acted as an excellent fluorescent material in cellular imaging owing to their cellular uptake and localization.
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Affiliation(s)
- Datta B Gunjal
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur, Maharashtra, 416004, India
- Department of Chemistry, Lal Bahadur Shastri College of Arts, Science and Commerce, Satara, Maharashtra, 415002, India
| | - Laxman S Walekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur, Maharashtra, 416004, India
| | - Samadhan P Pawar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur, Maharashtra, 416004, India
| | - Prashant V Anbhule
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur, Maharashtra, 416004, India
| | - Mukund G Mali
- School of Chemical Sciences, Punyashlok Ahilyadevi Holkar, Solapur University, Solapur, Maharashtra, 413255, India
| | - Vinayak P Dhulap
- School of Earth Sciences, Punyashlok Ahilyadevi Holkar, Solapur University, Solapur, Maharashtra, 413255, India
| | - Daewon Sohn
- Department of Chemistry and the Research Institute for Convergence of Basic Science, Hanyang University, Seoul, 04763, Republic of Korea
| | - Prasad G Mahajan
- Vidya Prathisthan's Arts, Commerce and Science College, Vidyanagari, Baramati, Maharashtra, 413133, India
| | - Ki Hwan Lee
- Department of Chemistry, Kongju National University, Gongju, Chungnam, 32588, Republic of Korea
| | - Rajendra V Shejwal
- Department of Chemistry, Lal Bahadur Shastri College of Arts, Science and Commerce, Satara, Maharashtra, 415002, India.
| | - Govind B Kolekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur, Maharashtra, 416004, India.
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Wang B, Song H, Qu X, Chang J, Yang B, Lu S. Carbon dots as a new class of nanomedicines: Opportunities and challenges. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214010] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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74
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Meng W, Wang B, Ai L, Song H, Lu S. Engineering white light-emitting diodes with high color rendering index from biomass carbonized polymer dots. J Colloid Interface Sci 2021; 598:274-282. [DOI: 10.1016/j.jcis.2021.04.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/01/2021] [Accepted: 04/05/2021] [Indexed: 10/21/2022]
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75
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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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76
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Shan F, Xia H, Xie X, Fu L, Yang H, Zhou Q, Zhang Y, Wang Z, Yu X. Novel N-doped carbon dots prepared via citric acid and benzoylurea by green synthesis for high selectivity Fe(III) sensing and imaging in living cells. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106273] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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77
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Zhuang P, Li K, Li D, Qiao H, E Y, Wang M, Sun J, Mei X, Li D. Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity. NANOSCALE RESEARCH LETTERS 2021; 16:121. [PMID: 34324080 PMCID: PMC8322205 DOI: 10.1186/s11671-021-03582-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
Carbon dots (CDs) have been widely used as antimicrobials due to their active surface, but some CDs suffer instability. Therefore, the relative applications such as the antibacterial activity may not be reliable for long-term use. Herein, we synthesize CDs with blue fluorescence by a hydrothermal process. Thereafter, polyethylenimine was applied for the assembly of CDs into CDs-based frameworks (CDFs). The CDFs exhibited quenched fluorescence but showed more stable properties based on the scanning electron microscope and zeta potential investigations. Both CDs and CDFs show antibacterial activity toward Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus), but CDFs exhibited better antibacterial performance, and S. aureus could be completely inhibited with the minimum inhibitory concentration of 30 μg/mL. This reveals CDFs magnify both the stability and antibacterial activity, which would be more promising for practical applications.
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Affiliation(s)
- Pengfei Zhuang
- Jinzhou Medical University, Jinzhou, China
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
| | - Kuo Li
- Jinzhou Medical University, Jinzhou, China
| | - Daoyong Li
- Jinzhou Medical University, Jinzhou, China
| | - Haixia Qiao
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China
| | - Yifeng E
- Department of Pharmacology, Jinzhou Medical University, Jinzhou, China
| | - Mingqun Wang
- Department of Basic Medical Science, Jinzhou Medical University, Jinzhou, China
| | | | - Xifan Mei
- Jinzhou Medical University, Jinzhou, China.
| | - Dan Li
- Jinzhou Medical University, Jinzhou, China.
- Department of Basic Science, Jinzhou Medical University, Jinzhou, China.
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78
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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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79
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Nie H, Wei K, Li Y, Liu Y, Zhao Y, Huang H, Shao M, Liu Y, Kang Z. Carbon dots/Bi2WO6 composite with compensatory photo-electronic effect for overall water photo-splitting at normal pressure. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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80
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Yang D, Qu D, An L, Zong X, Sun Z. A metal-free carbon dots for wastewater treatment by visible light active photo-Fenton-like reaction in the broad pH range. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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81
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Hu X, Wang S, Luo Q, Ge B, Cheng Q, Dong C, Xu J, Ding H, Xu M, Tedesco AC, Huang X, Zhang R, Bi H. Synthesis of Sn nanocluster@carbon dots for photodynamic therapy application. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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82
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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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83
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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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84
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Zhang Y, Wang J, Wu W, Li C, Ma H. A Green, Economic "Switch-On" Sensor for Cefixime Analysis Based on Black Soya Bean Carbon Quantum Dots. J AOAC Int 2021; 103:1230-1236. [PMID: 33241407 DOI: 10.1093/jaoacint/qsaa018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 01/23/2020] [Accepted: 02/04/2020] [Indexed: 01/29/2023]
Abstract
BACKGROUND Cefixime is a third-generation oral cephalosporin antibiotic widely used to treat bacterial infections. Typical methods for cefixime analysis use expensive instruments or sophisticated experimental procedures, and thus a sensitive and practical method is urgently needed for cefixime detection and analysis. OBJECTIVE To develop a sensitive and robust cefixime "switch-on" sensor based on carbon quantum dots (CQDs). METHODS In this study, black soya beans were used as an inexpensive carbon source for a "green" synthesis of fluorescent black soya bean (BS)-carbon quantum dots (CQDs). The fluorescence of these particles could be efficiently quenched by Ce(IV)due to the ground state recombination and electron transfer (ET) between Ce(IV)and BS-CQDs. In the presence of cefixime, the ET was interrupted and the fluorescent signal was recovered. RESULTS/CONCLUSIONS This method showed high sensitivity and an impressively low detection limit of 169 nM. HIGHLIGHTS This low-cost, simple strategy for cefixime detection exhibits excellent stability, selectivity, and sensitivity. Moreover, it was successfully applied for the detection of cefixime in tablets and in a complex biological environment, confirming its great potential utility for drug analysis, biological process research, and clinical research.
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Affiliation(s)
- Yuecheng Zhang
- Yan'an University, College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an 716000, Shaanxi Province, P. R. China
| | - Jingyuan Wang
- Yan'an University, College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an 716000, Shaanxi Province, P. R. China
| | - Wenbo Wu
- Yan'an University, College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an 716000, Shaanxi Province, P. R. China
| | - Chengjia Li
- Yan'an University, College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an 716000, Shaanxi Province, P. R. China
| | - Hongyan Ma
- Yan'an University, College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an 716000, Shaanxi Province, P. R. China
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85
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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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86
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Ru Y, Sui L, Song H, Liu X, Tang Z, Zang SQ, Yang B, Lu S. Rational Design of Multicolor-Emitting Chiral Carbonized Polymer Dots for Full-Color and White Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2021; 60:14091-14099. [PMID: 33830583 DOI: 10.1002/anie.202103336] [Citation(s) in RCA: 113] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/01/2021] [Indexed: 12/27/2022]
Abstract
Light-emitting chiral carbonized polymer dots (Ch-CPDs) are attracting great interest because of their extraordinary photonic properties, but modulating their band-gap emission, especially at long wavelength, and maintaining their chiral structure to achieve multicolor, high-emission Ch-CPDs remains challenging. Reported here for the first time is the synthesis of red- and multicolor-emitting Ch-CPDs using the common precursors L-/D-tryptophan and o-phenylenediamine, and a solvothermal approach at one temperature. The quantum yield of the Ch-CPDs was between 31 % and 54 %. Supramolecular self-assembly provided multicolor-emitting Ch-CPDs showing novel circularly polarized luminescence, with the highest dissymmetric factor (glum ) of 1×10-2 . Importantly, circularly polarized white-emitting CPDs were fabricated for the first time by tuning the mixing ratio of the three colored Ch-CPDs in a gel. This strategy affords exciting opportunities for designing functional chiroptical materials.
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Affiliation(s)
- Yi Ru
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450000, China
| | - Laizhi Sui
- State Key Lab of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Haoqiang Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450000, China
| | - Xingjiang Liu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450000, China
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Shuang-Quan Zang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450000, China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Siyu Lu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450000, China
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87
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Li J, Zhao H, Zhao X, Gong X. Red and yellow emissive carbon dots integrated tandem luminescent solar concentrators with significantly improved efficiency. NANOSCALE 2021; 13:9561-9569. [PMID: 34008686 DOI: 10.1039/d1nr01908b] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Luminescent solar concentrators (LSCs) can collect solar light from a large area and concentrate it on their small-area edges mounted with solar cells for efficient solar-to-electricity conversion. Thus, LSCs show huge promise for realizing building-integrated photovoltaics because of their semi-transparency and light weight. However, the low optical efficiency of LSCs becomes a great obstacle for their application in real energy conversion. Herein, yellow emissive carbon dots with a record-breaking ultrahigh quantum yield of up to 86.4% were prepared via a simple hydrothermal approach using low-cost precursors. By combining them with red emissive carbon dots (quantum yield of 17.6%), a large area (∼100 cm2) tandem LSC was fabricated. The power conversion efficiency (PCE) of the large-area carbon dot-integrated tandem LSC reaches up to 3.8%, which is among the best reported in literature for a similar lateral size of LSCs. In particular, the tandem structure based on two laminated layers is novel, and is fit for the real structural application of keeping windows warm, where two glass slides are usually used. The high-efficiency tandem LSC using eco-friendly carbon dots as fluorophores paves way for real applications of LSCs.
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Affiliation(s)
- Jiurong Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China.
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88
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Niu X, Song T, Xiong H. Large scale synthesis of red emissive carbon dots powder by solid state reaction for fingerprint identification. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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89
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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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90
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Ru Y, Sui L, Song H, Liu X, Tang Z, Zang S, Yang B, Lu S. Rational Design of Multicolor‐Emitting Chiral Carbonized Polymer Dots for Full‐Color and White Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103336] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yi Ru
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou 450000 China
| | - Laizhi Sui
- State Key Lab of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Haoqiang Song
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou 450000 China
| | - Xingjiang Liu
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou 450000 China
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 China
| | - Shuang‐Quan Zang
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou 450000 China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China
| | - Siyu Lu
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou 450000 China
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91
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Ai L, Yang Y, Wang B, Chang J, Tang Z, Yang B, Lu S. Insights into photoluminescence mechanisms of carbon dots: advances and perspectives. Sci Bull (Beijing) 2021; 66:839-856. [PMID: 36654140 DOI: 10.1016/j.scib.2020.12.015] [Citation(s) in RCA: 172] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/26/2020] [Accepted: 12/02/2020] [Indexed: 02/08/2023]
Abstract
Carbon dots (CDs) are potentially useful in many areas such as bioimaging, light-emitting diodes, and sensing because of their excellent optical properties, high biocompatibility, and low toxicity. Knowledge of their photoluminescence (PL) mechanisms, which have been widely studied, is of significance in guiding the synthesis and promoting applications of CDs with tunable PL emissions. However, the intrinsic mechanism of PL emission remains unclear, and a unified mechanism has not been found because of differences in particle structures. This review generalizes the categories of CDs, noting their structural diversity. Three types of PL mechanism pertaining to structural differences are outlined: internal factors dominated emission (including the conjugation effect, the surface state, and the synergistic effect), external factors dominated emission (including the molecular state and the environment effect), and crosslink-enhanced emission. Optical applications of CDs are also briefly mentioned. Finally, the prospects for research into PL mechanisms are discussed, noting the remaining challenges and directions for future work.
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Affiliation(s)
- Lin Ai
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Yisen Yang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Boyang Wang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Junbiao Chang
- Green Catalysis Center, 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
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Siyu Lu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
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92
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Wang Z, Zhou C, Wu S, Sun C. Ion-Imprinted Polymer Modified with Carbon Quantum Dots as a Highly Sensitive Copper(II) Ion Probe. Polymers (Basel) 2021; 13:1376. [PMID: 33922454 PMCID: PMC8122788 DOI: 10.3390/polym13091376] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/13/2021] [Accepted: 04/21/2021] [Indexed: 12/17/2022] Open
Abstract
Fluorescence analysis technology and ion imprinting technology are combined to prepare a copper ion fluorescence sensor. Carbon quantum dots (CQDs), with a quantum yield of 79%, were synthesized by a hydrothermal process using citric acid as the carbon source. The prepared CQDs, acting as the fluorophore, were grafted onto the surface of an SBA-15 mesoporous molecular sieve by an amidation reaction. Then, the fluorescent sensor CQDs@Cu-IIP was prepared using a surface imprinting technique with the modified SBA-15 as the substrate, copper ions as a template, tetraethoxysilane as the crosslinker, and 3-aminopropyl-3-ethoxysilane as the functional monomers. The sensor showed strong fluorescence from CQDs and high selectivity due to the presence of Cu(II)-IIP. After the detection conditions were optimized, the fluorescence intensity of the sensor had good linearity with Cu(II) concentration in a linear range of 0.25-2 mg/L and 3-10 mg/L. This CQDs@Cu-IIP was applied to the determination of traces Cu(II) in real water samples and good recoveries of 99.29-105.42% were obtained. The present study provides a general strategy for fabricating materials based on CQDs for selective fluorescence detection of heavy metals.
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Affiliation(s)
| | | | | | - Chunyan Sun
- College of Chemical Engineering, Qinghai University, Xining 810016, China; (Z.W.); (C.Z.); (S.W.)
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93
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Liu F, Jiang Y, Shao H, Wang C, Xu S, Zhang R. Precise control of the ratiometric fluorescence of dual-emissive B/N-doped carbon dots using pH-dependent bonds. NANOTECHNOLOGY 2021; 32:175604. [PMID: 33361573 DOI: 10.1088/1361-6528/abd6b0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Precise control of the structure and bonds of doped carbon dots (CDs) is important, so that their fluorescence can be tuned as desired. Up until now, there has been a lack of effective ways to control the bonds of doped CDs. In this article, we show that the fluorescence of B/N-doped carbon dots (B/N-CDs) can be precisely tuned just by controlling their precursors' pH values. The prepared B/N-CDs exhibit two emission bands, including one emission peak at around 450 nm due to the defect state caused by low sp2 hybridization of carbon atoms, as well as another emission peak at around 360 nm caused by the B-N bond. The results for the ratio of the maximum intensity of the two emission peaks above show a linear relationship. Meanwhile, the role of the pH value of the precursors on the luminescence of B/N-CDs is deeply studied. On the one hand, the pH value affects the bonding process of CDs. N-H bonds tend to form at a low pH value, while more competitive B-N bonds exist at much higher pH value, leading to the pH-dependent intensity of the 360 nm emission band. On the other hand, a high pH value causes higher crystallinity, thus suppressing defect-state fluorescence at 450 nm. The dual effects of pH lead to precisely controlled dual-emission intensities as well as ratiometric fluorescence.
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Affiliation(s)
- Fan Liu
- Advance Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, Jiangsu, People's Republic of China
| | - Yuan Jiang
- Lab for Nanoelectronics and NanoDevices, Department of Electronics Information, Hangzhou Dianzi University, Hangzhou, People's Republic of China
| | - HaiBao Shao
- School of Electronics and Information, Nantong University, Nantong, People's Republic of China
| | - Chunlei Wang
- Advance Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, Jiangsu, People's Republic of China
| | - Shuhong Xu
- Advance Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, Jiangsu, People's Republic of China
| | - Rong Zhang
- Department of Obstetrics and Gynecology, the Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
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94
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Dong D, Liu T, Liang D, Jin X, Qi Z, Li A, Ning Y. Facile Hydrothermal Synthesis of Chlorella-Derived Environmentally Friendly Fluorescent Carbon Dots for Differentiation of Living and Dead Chlorella. ACS APPLIED BIO MATERIALS 2021; 4:3697-3705. [DOI: 10.1021/acsabm.1c00178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Deming Dong
- Key Lab of Groundwater Resources and Environment Ministry of Education, College of New Energy and Environment, Jilin University, 2699 Qianjin Avenue, Changchun 130012, P. R. China
| | - Tianjiao Liu
- Key Lab of Groundwater Resources and Environment Ministry of Education, College of New Energy and Environment, Jilin University, 2699 Qianjin Avenue, Changchun 130012, P. R. China
| | - Dapeng Liang
- Key Lab of Groundwater Resources and Environment Ministry of Education, College of New Energy and Environment, Jilin University, 2699 Qianjin Avenue, Changchun 130012, P. R. China
| | - Xipeng Jin
- Key Lab of Groundwater Resources and Environment Ministry of Education, College of New Energy and Environment, Jilin University, 2699 Qianjin Avenue, Changchun 130012, P. R. China
| | - Zihan Qi
- Key Lab of Groundwater Resources and Environment Ministry of Education, College of New Energy and Environment, Jilin University, 2699 Qianjin Avenue, Changchun 130012, P. R. China
| | - Anfeng Li
- Key Lab of Groundwater Resources and Environment Ministry of Education, College of New Energy and Environment, Jilin University, 2699 Qianjin Avenue, Changchun 130012, P. R. China
| | - Yang Ning
- Key Lab of Groundwater Resources and Environment Ministry of Education, College of New Energy and Environment, Jilin University, 2699 Qianjin Avenue, Changchun 130012, P. R. China
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95
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Emami E, Mousazadeh MH. pH-responsive zwitterionic carbon dots for detection of rituximab antibody. LUMINESCENCE 2021; 36:1198-1208. [PMID: 33749984 DOI: 10.1002/bio.4045] [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: 12/15/2020] [Revised: 02/10/2021] [Accepted: 03/18/2021] [Indexed: 01/25/2023]
Abstract
Zwitterionic carbon dots (CDs) have received much attention as a result of good photostability, high biocompatibility, and high quantum yield. In this study, novel zwitterionic CDs were synthesized using a simple hydrothermal method of citric acid (CA) and l-histidine as carbon and nitrogen precursors, respectively. Prepared zwitterionic CDs have an average particle size of 4 nm diameter and showed green fluorescence with a peak at 530 nm when excited at 470 nm; quantum efficiency was 39.34% using rhodamine 6G as a baseline. The fluorescence intensity of zwitterionic CDs was quenched by rituximab in the range 0-400 μmol L-1 , with a limit of detection of 27 μmol L-1 . In addition, the synthesized zwitterionic CDs had low toxicity, good stability, and high selectivity and sensitivity sensing for rituximab, therefore zwitterionic CDs are a promising candidate for practical applications.
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Affiliation(s)
- Elham Emami
- Department of Chemistry, Amirkabir University of Technology, 424 Hafez Avenue, P.O. Box: 15875-4413, Tehran, Iran
| | - Mohammad H Mousazadeh
- Department of Chemistry, Amirkabir University of Technology, 424 Hafez Avenue, P.O. Box: 15875-4413, Tehran, Iran
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96
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Wang X, Gao S, Xu N, Xu L, Chen S, Mei C, Xu C. Facile synthesis of phosphorus‐nitrogen doped carbon quantum dots from cyanobacteria for bioimaging. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.23927] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xi Wang
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Shiyu Gao
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Nan Xu
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Li Xu
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Sainan Chen
- Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Academy of Environmental Science Nanjing People's Republic of China
| | - Changtong Mei
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Changyan Xu
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
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97
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98
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Liu C, Yang M, Hu J, Bao L, Tang B, Wei X, Zhao JL, Jin Z, Luo QY, Pang DW. Quantitatively Switchable pH-Sensitive Photoluminescence of Carbon Nanodots. J Phys Chem Lett 2021; 12:2727-2735. [PMID: 33705142 DOI: 10.1021/acs.jpclett.1c00287] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
pH sensing plays a key role in the life sciences as well as the environmental, industrial, and agricultural fields. Carbon nanodots (C-dots) with small size, low toxicity, and excellent stability hold great potential in pH sensing as nanoprobes due to their intrinsic pH-sensitive photoluminescence (PL). Nonetheless, the undesirable sensitivity and response range of C-dot PL toward pH cannot meet the requirements of practical applications, and the unclear pH-sensitive PL mechanism makes it difficult to control their pH sensitivity. Herein, the quantitative correlation of pH-sensitive PL with specific surface structures of C-dots is uncovered for the first time, to our best knowledge. The association of carboxylate and H+ increases the ratio of nonradiation to radiation decay of C-dots through excited-state proton transfer, resulting in the decrease of PL intensity. Meanwhile, the dissociation of α-H in β-dicarbonyl forming enolate increases the extent of delocalization of the C-dots conjugated system, which induces the PL broadening to the red region and a decreasing intensity. Based on the understanding of the pH-sensitive PL mechanism, the pH-sensitive PL of C-dots can be switched by quantitative modulation of carboxyl and β-dicarbonyl groups to achieve a desirable pH response range with high sensitivity. This work contributes to a better understanding of the pH-sensitive PL of C-dots and therefore presents an effective strategy for controllably tuning their pH sensitivity, facilitating the rational design of C-dot-based pH sensors.
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Affiliation(s)
- Cui Liu
- Research Center for Micro/Nano System & Bionic Medicine, Institute of Biomedical & Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen 518055, China
- College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, P. R. China
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, P. R. China
| | - Mengli Yang
- Research Center for Micro/Nano System & Bionic Medicine, Institute of Biomedical & Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen 518055, China
- College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, P. R. China
| | - Jiao Hu
- College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, P. R. China
| | - Lei Bao
- School of Engineering, RMIT University, Melbourne, VIC 3001, Australia
| | - Bo Tang
- College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, P. R. China
| | - Xiaoyuan Wei
- Research Center for Micro/Nano System & Bionic Medicine, Institute of Biomedical & Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen 518055, China
| | - Jiang-Lin Zhao
- Research Center for Micro/Nano System & Bionic Medicine, Institute of Biomedical & Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen 518055, China
| | - Zongwen Jin
- Research Center for Micro/Nano System & Bionic Medicine, Institute of Biomedical & Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen 518055, China
| | - Qing-Ying Luo
- Research Center for Micro/Nano System & Bionic Medicine, Institute of Biomedical & Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen 518055, China
| | - Dai-Wen Pang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, P. R. China
- College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan 430072, P. R. China
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99
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Wei F, Cui X, Wang Z, Dong C, Li J, Han X. Recoverable peroxidase-like Fe 3O 4@MoS 2-Ag nanozyme with enhanced antibacterial ability. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021. [PMID: 33052192 DOI: 10.1016/j.cej.2020.127245] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Antibacterial agents with enzyme-like properties and bacteria-binding ability have provided an alternative method to efficiently disinfect drug-resistance microorganism. Herein, a Fe3O4@MoS2-Ag nanozyme with defect-rich rough surface was constructed by a simple hydrothermal method and in-situ photodeposition of Ag nanoparticles. The nanozyme exhibited good antibacterial performance against E. coli (~69.4%) by the generated ROS and released Ag+, while the nanozyme could further achieve an excellent synergistic disinfection (~100%) by combining with the near-infrared photothermal property of Fe3O4@MoS2-Ag. The antibacterial mechanism study showed that the antibacterial process was determined by the collaborative work of peroxidase-like activity, photothermal effect and leakage of Ag+. The defect-rich rough surface of MoS2 layers facilitated the capture of bacteria, which enhanced the accurate and rapid attack of •OH and Ag+ to the membrane of E. coli with the assistance of local hyperthermia. This method showed broad-spectrum antibacterial performance against Gram-negative bacteria, Gram-positive bacteria, drug-resistant bacteria and fungal bacteria. Meanwhile, the magnetism of Fe3O4 was used to recycle the nanozyme. This work showed great potential of engineered nanozymes for efficient disinfection treatment.
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Affiliation(s)
- Feng Wei
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xinyu Cui
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Zhao Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Changchang Dong
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Jiadong Li
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xiaojun Han
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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100
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Li H, Xie Y, Liu Y, Xiao Y, Hu H, Liang Y, Zheng M. Surface chemical functionality of carbon dots: influence on the structure and energy storage performance of the layered double hydroxide. RSC Adv 2021; 11:10785-10793. [PMID: 35423579 PMCID: PMC8695852 DOI: 10.1039/d1ra00706h] [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: 01/27/2021] [Accepted: 03/03/2021] [Indexed: 11/21/2022] Open
Abstract
As a kind of zero-dimensional material, carbon dots (CDs) have become a kind of promising novel material due to their incomparable unique physical and chemical properties. Despite the optical properties of CDs being widely studied, their surface chemical functions are rarely reported. Here we propose an interesting insight into the important role of surface chemical properties of CDs in adjusting the structure of the layered double hydroxide (LDH) and its energy storage performance. It was demonstrated that CDs with positive charge (p-CDs) not only reduce the size of the flower-like LDH through affecting the growth of LDH sheets, but also act as a structure stabilizer. After calcination, the layered double oxide (LDO) maintained the morphology of the LDH and prevented the stacking of layers. And the superiority of the composite in lithium-ion batteries (LIBs) was demonstrated. When used as an anode of LIBs, composites possess outstanding specific capacity, cycle stability and rate performance. It presents the discharge capacity of 1182 mA h g-1 and capacity retention of 94% at the current density of 100 mA g-1 after 100 cycles. Our work demonstrates the important chemical functions of CDs and expands their future applications.
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Affiliation(s)
- Huimin Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University Guangzhou 510642 China
| | - Yingjun Xie
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University Guangzhou 510642 China
| | - Yingliang Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University Guangzhou 510642 China
| | - Yong Xiao
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University Guangzhou 510642 China
| | - Hang Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University Guangzhou 510642 China
| | - Yeru Liang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University Guangzhou 510642 China
| | - Mingtao Zheng
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University Guangzhou 510642 China
- Maoming Branch, Guangdong Laboratory for Modern Agriculture Maoming 525000 China
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