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Wang L, Liu G, Wang M, Song Y, Jing Q, Zhao H. Vacuum-Boosting Precise Synthetic Control of Highly Bright Solid-State Carbon Quantum Dots Enables Efficient Light Emitting Diodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401812. [PMID: 38816772 DOI: 10.1002/smll.202401812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/16/2024] [Indexed: 06/01/2024]
Abstract
Carbon quantum dots (C-dots) have emerged as efficient fluorescent materials for solid-state lighting devices. However, it is still a challenge to obtain highly bright solid-state C-dots because of the aggregation caused quenching. Compared to the encapsulation of as-prepared C-dots in matrices, one-step preparation of C-dots/matrix complex is a good method to obtain highly bright solid-state C-dots, which is still quite limited. Here, an efficient and controllable vacuum-boosting gradient heating approach is demonstrated for in situ synthesis of a stable and efficient C-dots/matrix complex. The addition of boric acid strongly bonded with urea, promoting the selectivity of the reaction between citric acid and urea. Benefiting from the high reaction selectivity and spatial-confinement growth of C-dots in porous matrices, in situ synthesize C-dots bonded can synthesized dominantly with a crosslinked octa-cyclic compound, biuret and cyanuric acid (triuret). The obtained C-dots/matrix complex exhibited bright green emission with a quantum yield as high as 90% and excellent thermal and photo stability. As a proof-of-concept, the as-prepared C-dots are used for the fabrication of white light-emitting diodes (LEDs) with a color rendering index of 84 and luminous efficiency of 88.14 lm W-1, showing great potential for applications in LEDs.
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Affiliation(s)
- Lihua Wang
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Guiju Liu
- College of Physics, Yantai University, Yantai, 264005, P. R. China
| | - Maorong Wang
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Yang Song
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Qiang Jing
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Haiguang Zhao
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
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Ren J, Opoku H, Tang S, Edman L, Wang J. Carbon Dots: A Review with Focus on Sustainability. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2405472. [PMID: 39023174 PMCID: PMC11425242 DOI: 10.1002/advs.202405472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/03/2024] [Indexed: 07/20/2024]
Abstract
Carbon dots (CDs) are an emerging class of nanomaterials with attractive optical properties, which promise to enable a variety of applications. An important and timely question is whether CDs can become a functional and sustainable alternative to incumbent optical nanomaterials, notably inorganic quantum dots. Herein, the current CD literature is comprehensively reviewed as regards to their synthesis and function, with a focus on sustainability aspects. The study quantifies why it is attractive that CDs can be synthesized with biomass as the sole starting material and be free from toxic and precious metals and critical raw materials. It further describes and analyzes employed pretreatment, chemical-conversion, purification, and processing procedures, and highlights current issues with the usage of solvents, the energy and material efficiency, and the safety and waste management. It is specially shown that many reported synthesis and processing methods are concerningly wasteful with the utilization of non-sustainable solvents and energy. It is finally recommended that future studies should explicitly consider and discuss the environmental influence of the selected starting material, solvents, and generated byproducts, and that quantitative information on the required amounts of solvents, consumables, and energy should be provided to enable an evaluation of the presented methods in an upscaled sustainability context.
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Affiliation(s)
- Junkai Ren
- The Organic Photonics and Electronics Group, Department of PhysicsUmeå UniversityUmeåSE‐90187Sweden
| | - Henry Opoku
- The Organic Photonics and Electronics Group, Department of PhysicsUmeå UniversityUmeåSE‐90187Sweden
| | - Shi Tang
- The Organic Photonics and Electronics Group, Department of PhysicsUmeå UniversityUmeåSE‐90187Sweden
- LunaLEC ABUmeå UniversityUmeåSE‐90187Sweden
| | - Ludvig Edman
- The Organic Photonics and Electronics Group, Department of PhysicsUmeå UniversityUmeåSE‐90187Sweden
- LunaLEC ABUmeå UniversityUmeåSE‐90187Sweden
- Wallenberg Initiative Materials Science for Sustainability, Department of PhysicsUmeå UniversityUmeåSE‐90187Sweden
| | - Jia Wang
- The Organic Photonics and Electronics Group, Department of PhysicsUmeå UniversityUmeåSE‐90187Sweden
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Barman BK, Yamada H, Watanabe K, Deguchi K, Ohki S, Hashi K, Goto A, Nagao T. Rare-Earth-Metal-Free Solid-State Fluorescent Carbonized-Polymer Microspheres for Unclonable Anti-Counterfeit Whispering-Gallery Emissions from Red to Near-Infrared Wavelengths. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400693. [PMID: 38867440 PMCID: PMC11321640 DOI: 10.1002/advs.202400693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/05/2024] [Indexed: 06/14/2024]
Abstract
Colloidal carbon dots (CDs) have garnered much attention as metal-free photoluminescent nanomaterials, yet creation of solid-state fluorescent (SSF) materials emitting in the deep red (DR) to near-infrared (NIR) range poses a significant challenge with practical implications. To address this challenge and to engineer photonic functionalities, a micro-resonator architecture is developed using carbonized polymer microspheres (CPMs), evolved from conventional colloidal nanodots. Gram-scale production of CPMs utilizes controlled microscopic phase separation facilitated by natural peptide cross-linking during hydrothermal processing. The resulting microstructure effectively suppresses aggregation-induced quenching (AIQ), enabling strong solid-state light emission. Both experimental and theoretical analysis support a role for extended π-conjugated polycyclic aromatic hydrocarbons (PAHs) trapped within these microstructures, which exhibit a progressive red shift in light absorption/emission toward the NIR range. Moreover, the highly spherical shape of CPMs endows them with innate photonic functionalities in combination with their intrinsic CD-based attributes. Harnessing their excitation wavelength-dependent photoluminescent (PL) property, a single CPM exhibits whispering-gallery modes (WGMs) that are emission-tunable from the DR to the NIR. This type of newly developed microresonator can serve as, for example, unclonable anti-counterfeiting labels. This innovative cross-cutting approach, combining photonics and chemistry, offers robust, bottom-up, built-in photonic functionality with diverse NIR applications.
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Affiliation(s)
- Barun Kumar Barman
- Research Center for Materials Nanoarchitectonics (WPI‐MANA)National Institute for Materials Science (NIMS)TsukubaIbaraki305‐0044Japan
| | - Hiroyuki Yamada
- Research Center for Materials Nanoarchitectonics (WPI‐MANA)National Institute for Materials Science (NIMS)TsukubaIbaraki305‐0044Japan
| | - Keisuke Watanabe
- Research Center for Materials Nanoarchitectonics (WPI‐MANA)National Institute for Materials Science (NIMS)TsukubaIbaraki305‐0044Japan
| | - Kenzo Deguchi
- Research Network and Facility Services DivisionNational Institute for Materials Science (NIMS)3‐13 SakuraTsukubaIbaraki305‐0003Japan
| | - Shinobu Ohki
- Research Network and Facility Services DivisionNational Institute for Materials Science (NIMS)3‐13 SakuraTsukubaIbaraki305‐0003Japan
| | - Kenjiro Hashi
- Center for Basic Research on MaterialsNational Institute for Materials Science (NIMS)3‐13 SakuraTsukubaIbaraki305‐0003Japan
| | - Atsushi Goto
- Center for Basic Research on MaterialsNational Institute for Materials Science (NIMS)3‐13 SakuraTsukubaIbaraki305‐0003Japan
| | - Tadaaki Nagao
- Research Center for Materials Nanoarchitectonics (WPI‐MANA)National Institute for Materials Science (NIMS)TsukubaIbaraki305‐0044Japan
- Department of Condensed Matter Physics Graduate School of ScienceHokkaido UniversitySapporoHokkaido060‐0810Japan
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Barman BK, Hernández-Pinilla D, Dao TD, Deguchi K, Ohki S, Hashi K, Goto A, Miyazaki T, Nanda KK, Nagao T. Bioinspired Carbonized Polymer Microspheres for Full-Color Whispering Gallery Mode Emission for White Light Emission, Unclonable Anticounterfeiting, and Chemical Sensing Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22312-22325. [PMID: 38651800 DOI: 10.1021/acsami.3c18035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Light-element-based fluorescent materials, colloidal graphene quantum dots, and carbon dots (CDs) have sparked an immense amount of scientific interest in the past decade. However, a significant challenge in practical applications has emerged concerning the development of solid-state fluorescence (SSF) materials. This study addresses this knowledge gap by exploring the unexplored photonic facets of C-based solid-state microphotonic emitters. The proposed synthesis approach focuses on carbonized polymer microspheres (CPMs) instead of conventional nanodots. These microspheres exhibit remarkable SSF spanning the entire visible spectrum from blue to red. The highly spherical shape of CPMs imparts built-in photonic properties in addition to its intrinsic CD-based attributes. Leveraging their excitation-dependent photoluminescence property, these microspheres exhibit amplified spontaneous emission, assisted by the whispering gallery mode resonance across the visible spectral region. Remarkably, unlike conventional semiconductor quantum dots or dye-doped microresonators, this single microstructure showcases adaptable resonant emission without structural/chemical modifications. This distinctive attribute enables a plethora of applications, including microcavity-assisted energy transfer for white light emission, highly sensitive chemical sensing, and secure encrypted anticounterfeiting measures. This interdisciplinary approach, integrating photonics and chemistry, provides a robust solution for light-element-based SSF with inherent photonic functionality and wide-ranging applications.
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Affiliation(s)
- Barun Kumar Barman
- Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| | - David Hernández-Pinilla
- Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| | - Thang Duy Dao
- Integrated Photonics Technologies Unit, Microsystems Division, Silicon Austria Laboratories (SAL), Europastraße 12, 9524 Villach, Austria
| | - Kenzo Deguchi
- Research Network and Facility Services Division, National Institute for Materials Science (NIMS), 3-13 Sakura, Tsukuba, Ibaraki 305-0003, Japan
| | - Shinobu Ohki
- Research Network and Facility Services Division, National Institute for Materials Science (NIMS), 3-13 Sakura, Tsukuba, Ibaraki 305-0003, Japan
| | - Kenjiro Hashi
- Center for Basic Research on Materials, National Institute for Materials Science (NIMS), 3-13 Sakura, Tsukuba, Ibaraki 305-0003, Japan
| | - Atsushi Goto
- Center for Basic Research on Materials, National Institute for Materials Science (NIMS), 3-13 Sakura, Tsukuba, Ibaraki 305-0003, Japan
| | - Tsuyoshi Miyazaki
- Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| | - Karuna Kar Nanda
- Institute of Physics, P. O. Sainik School, Bhubaneswar 751005, India
- Materials Research Centre, Indian Institute of Science, Bangalore 560012, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
| | - Tadaaki Nagao
- Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
- Department of Condensed Matter Physics, Graduate School of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
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Xu F, Dong R, Cui J, Zhang Y, Ren W, Song K, Meng S, Zhang R, Li K, Bai J, Qin Z. Transformation of crystal structure induced by the temperatures in carbon dots (CDs)-based composites with multicolor fluorescence for white Light-Emitting-Diode (WLED). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123958. [PMID: 38281462 DOI: 10.1016/j.saa.2024.123958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/29/2023] [Accepted: 01/22/2024] [Indexed: 01/30/2024]
Abstract
Regulation of the fluorescence through crystalizing from the matrix in the Carbon dots (CDs)-based solid-state materials has been verified to be one of the effective methods, yet there are not only challenges in preparing such materials efficiently, but also insufficient insight into their regulation mechanisms. Here, a one-pot solvothermal route to synthesize a series of CDs-based composites with crystalline matrix is reported. These crystals exhibited multicolor fluorescence with the feature of multi-peaks emissions with increasing temperatures from 140 ℃ to 220 ℃, in which the orange emitting O-CDs@PA and the yellow emitting Y-CDs@PA crystals obtained the FLQYs of 22% and 68% respectively due to relatively stable crystalline structures. After comparative analysis to both crystals in detail, the core and the groups associated with them on the interface between CDs and matrix were adjusted in size and species during structural transformation of the crystal matrix, which changes radically the energy band structures to influence fluorescent emitting of both crystals ultimately. In addition, the reasons resulting in higher FLQY for Y-CDs@PA were provided leveraging the schematic illustration presumed based on the PL properties of both crystals. Because of the optimal optical performances, these fluorescent materials promised to fabricate WLED devices and obtained a number of photometric parameters endowed these WLED devices with the feature of warm-white light.
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Affiliation(s)
- Fengli Xu
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Ruoyu Dong
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Junchao Cui
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Yufei Zhang
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Weijie Ren
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China.
| | - Kai Song
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Shuai Meng
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Rui Zhang
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Kun Li
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Jingjing Bai
- Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan 030008, the People's Republic of China
| | - Zhenxing Qin
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China.
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Li W, Han Y, Wang L, Selopal GS, Wang X, Zhao H. Highly bright solid-state carbon dots for efficient anticounterfeiting. RSC Adv 2024; 14:83-89. [PMID: 38173574 PMCID: PMC10758757 DOI: 10.1039/d3ra07235e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
Carbon dots (C-dots) as promising fluorescent materials have attracted much attention because of their low toxicity and excellent optoelectronic properties. However, the aggregation-caused quenching (ACQ) of the solid-state C-dots has limited their potential applications in anti-counterfeiting and optoelectronic devices. In this work, C-dot powder was prepared by directly dispersing the as-prepared C-dots in a polymer matrix or in situ formation of the C-dot/Ca-complex by vacuum heating in the presence of boric acid. The as-prepared C-dots have high quantum yields (QYs) in the range of 40-67% with temperature-dependent photoluminescent (PL) properties. As a proof of concept, the as-synthesized C-dots were used to produce a flexible anti-counterfeiting code and showed high-level security. This highlights the potential of C-dots in solid-state information, anti-information encryption and anti-counterfeiting.
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Affiliation(s)
- Weihua Li
- College of Textiles and Clothes, College of Physics, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University No. 308 Ningxia Road Qingdao 266071 P. R. China
- Department of Engineering, Faculty of Agriculture, Dalhousie University Truro Nova Scotia B2N 5E3 Canada
| | - Yuanyuan Han
- College of Textiles and Clothes, College of Physics, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University No. 308 Ningxia Road Qingdao 266071 P. R. China
- Department of Engineering, Faculty of Agriculture, Dalhousie University Truro Nova Scotia B2N 5E3 Canada
| | - Lihua Wang
- College of Textiles and Clothes, College of Physics, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University No. 308 Ningxia Road Qingdao 266071 P. R. China
- Department of Engineering, Faculty of Agriculture, Dalhousie University Truro Nova Scotia B2N 5E3 Canada
| | - Gurpreet Singh Selopal
- College of Textiles and Clothes, College of Physics, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University No. 308 Ningxia Road Qingdao 266071 P. R. China
- Department of Engineering, Faculty of Agriculture, Dalhousie University Truro Nova Scotia B2N 5E3 Canada
| | - Xiaohan Wang
- College of Textiles and Clothes, College of Physics, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University No. 308 Ningxia Road Qingdao 266071 P. R. China
- Department of Engineering, Faculty of Agriculture, Dalhousie University Truro Nova Scotia B2N 5E3 Canada
| | - Haiguang Zhao
- College of Textiles and Clothes, College of Physics, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University No. 308 Ningxia Road Qingdao 266071 P. R. China
- Department of Engineering, Faculty of Agriculture, Dalhousie University Truro Nova Scotia B2N 5E3 Canada
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Zhu J, Shen M, Shen J, Wang C, Wei Y. Nitrogen and bromine co-doped carbon dots with red fluorescence for sensing of Ag + and visual monitoring of glutathione in cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 296:122642. [PMID: 36989694 DOI: 10.1016/j.saa.2023.122642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/19/2023] [Accepted: 03/14/2023] [Indexed: 06/19/2023]
Abstract
Carbon dots (CDs) with red fluorescence emission have excellent advantages in cell imaging. Herein, novel nitrogen and bromine doped CDs (N,Br-CDs) were prepared with 4-bromo-1,2-phenylenediamine as precursor. The N, Br-CDs present the optimal emission wavelength at 582 nm (λex = 510 nm) at pH 7.0 and 648 nm (λex = 580 nm) at pH 3.0 ∼ 5.0, respectively. The fluorescence intensity of N,Br-CDs at 648 nm versus Ag+ concentration shows a good relationship from 0 to 60 μM with the limit of detection (LOD) of 0.14 μM. Furthermore, the fluorescence of N,Br-CDs/Ag+ is efficiently restored via the combination of glutathione (GSH) and Ag+ and linearly changes with GSH concentration from 0 ∼ 6.0 μM with LOD of 49 nM. This method has been successfully employed to monitor intracellular Ag+ and GSH with fluorescence imaging. The results suggest that the N,Br-CDs has application potential in the sensing of Ag+ and visual monitoring of GSH in cells.
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Affiliation(s)
- Jiantao Zhu
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China; Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina, Lanzhou 730060, Gansu, PR China
| | - Mengxin Shen
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China
| | - Jiwei Shen
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China
| | - Chaozhan Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China
| | - Yinmao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China.
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Zhao L, Cao X, Jang X, Zhang Y, Shang B, Sun Z, Zhan Y. One-pot synthesis of nitrogen-doped carbonized polymer dots with tunable emission for multicolor light-emitting diodes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122815. [PMID: 37196549 DOI: 10.1016/j.saa.2023.122815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/25/2023] [Accepted: 04/30/2023] [Indexed: 05/19/2023]
Abstract
Carbonized polymer dots (CPDs) have highly potential application value in the field of optoelectronic devices due to their preferable stability, excellent optical properties and low cost. Here, the nitrogen-doped carbonized polymer dots (HNCDs) with self-quenching-resistant fluorescence were prepared via a simple solvothermal method with citric acid, urea and 2-hydroxyethyl methacrylate (HEMA) as raw materials. The structure and optical properties of the HNCDs have been explored in detail by various contrast experiments. The results show that HEMA form the poly(HEMA) to modify on the surface of carbonized core, which can overcome the quenching effect of carbonized core. The nitrogen doping is crucial for the red shift emission of solid-state HNCDs. Furthermore, the HNCDs exhibit concentration-dependent emission and excellent compatibility with silicone sol, which lead to their emission red shifted from blue to red with increasing concentration. The HNCDs were further applied to construct the light-emitting diodes (LEDs), and the multicolor LEDs ranging from blue to red can be prepared by simply varying the type of chips and adjusting the concentration of HNCDs in encapsulating material.
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Affiliation(s)
- Liuxi Zhao
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Xiyue Cao
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Xuanfeng Jang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Yuhong Zhang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Bin Shang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China.
| | - Zhengguang Sun
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Yuan Zhan
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
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Lou Q, Chen N, Zhu J, Liu K, Li C, Zhu Y, Xu W, Chen X, Song Z, Liang C, Shan CX, Hu J. Thermally Enhanced and Long Lifetime Red TADF Carbon Dots via Multi-Confinement and Phosphorescence Assisted Energy Transfer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211858. [PMID: 36893767 DOI: 10.1002/adma.202211858] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 02/28/2023] [Indexed: 05/19/2023]
Abstract
Thermally activated delayed fluorescence (TADF) materials, which can harvest both singlet and triplet excitons for high-efficiency emission, have attracted widespread concern for their enormous applications. Nevertheless, luminescence thermal quenching severely limits the efficiency and operating stability in TADF materials and devices at high temperature. Herein, a surface engineering strategy is adopted to obtain unique carbon dots (CDs)-based thermally enhanced TADF materials with ≈250% enhancement from 273 to 343 K via incorporating seed CDs into ionic crystal network. The rigid crystal network can simultaneously boost reverse intersystem crossing process via enhancing spin-orbit coupling between singlet and triplet states and suppressing non-radiative transition rate, contributing to the thermally enhanced TADF character. Benefiting from efficient energy transfer from triplet states of phosphorescence center to singlet states of CDs, TADF emission at ≈600 nm in CDs displays a long lifetime up to 109.6 ms, outperforming other red organic TADF materials. Thanks to variable decay rates of the delayed emission centers, time and temperature-dependent delayed emission color has been first realized in CDs-based delayed emission materials. The CDs with thermally enhanced and time-/temperature-dependent emission in one material system can offer new opportunities in information protection and processing.
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Affiliation(s)
- Qing Lou
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Niu Chen
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450002, P. R. China
| | - Jinyang Zhu
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Kaikai Liu
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Chao Li
- College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Yongsheng Zhu
- College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Wen Xu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian, 116600, P. R. China
| | - Xu Chen
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Zhijiang Song
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450002, P. R. China
| | - Changhao Liang
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450002, P. R. China
| | - Chong-Xin Shan
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Junhua Hu
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Longzihu New Energy Laboratory, Zhengzhou University, Zhengzhou, 450001, P. R. China
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10
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Song L, Qiao X, Sun J, Yi N, Wang M, Zhao Z, Xie R, Chen W, Xia Y. Wet-spinning fluorescent alginate fibres achieved by doping PEI modified CPDs for multiple anti-counterfeiting. Carbohydr Polym 2023; 304:120500. [PMID: 36641167 DOI: 10.1016/j.carbpol.2022.120500] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
Carbonized polymer dots (CPDs) with satisfactory excitation-dependent-emission and biocompatibility had great potential in anti-counterfeiting fibres field. However, it was difficult for CPDs to combined into the fibres due to the unstable interaction between CPDs and spinnable polymer matrix. Polyethyleneimine (PEI) was used to modify CPDs (namely PEI-CPDs) for achieving stable interactions with sodium alginate (SA) by a simple method, which including the physical interaction between the amino groups of PEI-CPDs and carboxyl groups of SA and the chain entanglement between two types of polymer chains. Then alginate fibres based on PEI-CPDs (PEI-CPDs/CaALG fibres) were successfully prepared by wet-spinning for the first time with less loss of PEI-CPDs. The high mechanical strength, excellent thermal stability and good biocompatibility achieved by PEI-CPDs/CaALG fibres. Furthermore, the fibres exhibited the excitation-dependent-emission property. Anti-counterfeiting of the fibres was conducted on both textile and papers, which showed higher security than the existing anti-counterfeiting fibres.
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Affiliation(s)
- Li Song
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
| | - Xiaolan Qiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Jianxin Sun
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
| | - Na Yi
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
| | - Mengyue Wang
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
| | - Zhihui Zhao
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China.
| | - Ruyi Xie
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
| | - Weichao Chen
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China.
| | - Yanzhi Xia
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
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11
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Reva Y, Jana B, Langford D, Kinzelmann M, Bo Y, Schol PR, Scharl T, Zhao X, Crisp RW, Drewello T, Clark T, Cadranel A, Guldi DM. Understanding the Visible Absorption of Electron Accepting and Donating CNDs. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207238. [PMID: 36748284 DOI: 10.1002/smll.202207238] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/23/2022] [Indexed: 06/18/2023]
Abstract
Carbon nanodots (CNDs) synthesized from citric acid and formyl derivatives, that is, formamide, urea, or N-methylformamide, stand out through their broad-range visible-light absorbance and extraordinary photostability. Despite their potential, their use has thus far been limited to imaging research. This work has now investigated the link between CNDs' photochemical properties and their chemical structure. Electron-rich, yellow carbon nanodots (yCNDs) are obtained with in situ addition of NaOH during the synthesis, whereas otherwise electron-poor, red carbon nanodots (rCNDs) are obtained. These properties originate from the reduced and oxidized dimer of citrazinic acid within the matrix of yCNDs and rCNDs, respectively. Remarkably, yCNDs deposited on TiO2 give a 30% higher photocurrent density of 0.7 mA cm-2 at +0.3 V versus Ag/AgCl under Xe-lamp irradiation (450 nm long-pass filter, 100 mW cm-2 ) than rCNDs. The difference in overall photoelectric performance is due to fundamentally different charge-transfer mechanisms. These depend on either the electron-accepting or the electron-donating nature of the CNDs, as is evident from photoelectrochemical tests with TiO2 and NiO and time-resolved spectroscopic measurements.
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Affiliation(s)
- Yana Reva
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Bikash Jana
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
- Technion - Israel Institute of Technology, Schulich Faculty of Chemistry, Technion, Haifa, 3200008, Israel
| | - Daniel Langford
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Marina Kinzelmann
- Department of Chemistry and Pharmacy, Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Yifan Bo
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
- Department of Chemistry and Pharmacy, Computer-Chemistry Center, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstrasse 25, 91052, Erlangen, Germany
| | - Peter R Schol
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Tobias Scharl
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Xinyi Zhao
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Ryan W Crisp
- Department of Chemistry and Pharmacy, Chair of Chemistry of Thin Film Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Thomas Drewello
- Department of Chemistry and Pharmacy, Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Timothy Clark
- Department of Chemistry and Pharmacy, Computer-Chemistry Center, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstrasse 25, 91052, Erlangen, Germany
| | - Alejandro Cadranel
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
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12
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Song Z, Shang Y, Lou Q, Zhu J, Hu J, Xu W, Li C, Chen X, Liu K, Shan CX, Bai X. A Molecular Engineering Strategy for Achieving Blue Phosphorescent Carbon Dots with Outstanding Efficiency above 50. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207970. [PMID: 36413559 DOI: 10.1002/adma.202207970] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Highly efficient emission has been a long-lasting pursuit for carbon dots (CDs) owing to their enormous potential in optoelectronic applications. Nevertheless, their room-temperature phosphorescence (RTP) performance still largely lags behind their outstanding fluorescence emission, especially in the blue spectral region. Herein, high-efficiency blue RTP CDs have been designed and constructed via a simple molecular engineering strategy, enabling CDs with an unprecedented phosphorescence quantum efficiency of to 50.17% and a long lifetime of 2.03 s. This treating route facilitates the formation of high-density (n, π*) configurations in the CD π-π conjugate system through the introduction of abundant functional groups, which can evoke a strong spin-orbit coupling and further promote the intersystem crossing from singlet to triplet excited states and radiative recombination from triplet excited states to ground state. With blue phosphorescent CDs as triplet donors, green, red, and white afterglow composites are successfully fabricated via effective phosphorescence Förster resonance energy transfer. Importantly, the color temperature of the white afterglow emission can be widely and facilely tuned from cool white to pure white and warm white. Moreover, advanced information encryption, light illumination, and afterglow/dynamic visual display have been demonstrated when using these multicolor-emitting CD-based afterglow systems.
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Affiliation(s)
- Zhijiang Song
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450002, P. R. China
| | - Yuan Shang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Qing Lou
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Jinyang Zhu
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Junhua Hu
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Longzihu New Energy Laboratory, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Wen Xu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials and Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian, 116600, P. R. China
| | - Changchang Li
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Xu Chen
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Kaikai Liu
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Chong-Xin Shan
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Xue Bai
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
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13
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Huang Q, Sun H, Lu C, Wang C, Xu S. Post-synthetic regulation of the fluorescence of CDs: insights into the fluorescence mechanism. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:353-360. [PMID: 36594675 DOI: 10.1039/d2ay01632j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Exploring the origin of emission is fundamental in the field of carbon dots (CDs). Due to the lack of suitable in situ probing techniques, it is necessary to explore effective alternative methods that can accurately reflect the relationship between the emission and the composition of the functional groups of CDs. Herein, we propose a new method of post-synthetic treatment of CDs by photo-oxidation to investigate the origin of emission for CDs. After the addition of a photo-oxidant into pre-prepared CDs under UV irradiation, the fluorescence of CDs can be regulated from the original orange emission to the final green emission due to the damage of original functional groups and the formation of new functional groups on CDs during the post-treatment process. The abundant dynamic information about the functional groups and emissions of CDs during the visible and ready-to-monitor post-treatment process makes it possible to quantitatively analyze the origin of the emission of CDs. Our results suggest that the emission sub-peaks at 560 nm and 600 nm relate to the CD surface-state-associated -NH3+ groups, while the emission sub-peak at 537 nm or 494 nm is associated with the CD surface-state-associated -OH groups or the CD surface-state-associated carbonyl groups (CO). Under UV irradiation, the CD surface-state-associated -NH3+ groups can be continuously converted into the CD surface-state-associated -OH groups and the CD surface-state-associated carbonyl groups (CO), leading to the changed emission color of CDs.
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Affiliation(s)
- Qingchun Huang
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| | - Hongcan Sun
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| | - Changgui Lu
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| | - Chunlei Wang
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| | - Shuhong Xu
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
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14
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Chen L, Wang CF, Liu C, Chen S. Facile Access to Fabricate Carbon Dots and Perspective of Large-Scale Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022:e2206671. [PMID: 36479832 DOI: 10.1002/smll.202206671] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Carbon dots (CDs), fluorescent carbon nanoparticles with particle sizes < 10 nm, are constantly being developed for potential large-scale applications. Recently, methods allow CD synthesis to be carried out on large-scale preparation in a controlled fashion are potentially important for multiple disciplines, including bottom-up strategy, top-down method. In this review, the recent progresses in the research of the methods for large-scale production of CDs and their functionalization are summarized. Especially, the methods of CD synthesis, such as large-scale preparation, hydrothermal/solvothermal, microwave-assisted, magnetic hyperthermia microfluidic and other methods, along with functionalization of CDs, are summarized in detail. By promising applications of CDs, there are three aspects have been already reported, such as enhancing mechanical properties, flame retardancy, and energy storage. Also, future development of CDs is prospected.
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Affiliation(s)
- Lintao Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional, Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Cai-Feng Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional, Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Chang Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional, Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional, Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
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15
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Liu L, Li X, Bu W, Jin N, Meng Y, Wang Y, Wang D, Xu X, Zhou D, Sun H. Carbon dots enhance extracellular matrix secretion for dentin-pulp complex regeneration through PI3K/Akt/mTOR pathway-mediated activation of autophagy. Mater Today Bio 2022; 16:100344. [PMID: 35833197 PMCID: PMC9272035 DOI: 10.1016/j.mtbio.2022.100344] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 12/11/2022] Open
Abstract
Pulp injury is one of the most common clinical diseases, and severe cases are usually associated with the functional loss of the tooth, while the current clinical treatment modality is only a cavity filling procedure without the regeneration of the dentin-pulp complex, thus leading to a devitalized and brittle tooth. In this study, carbon dots (CDots) with excellent biocompatibility are prepared from ascorbic acid and polyethyleneimine via a hydrothermal method. The as-prepared CDots can enhance extracellular matrix (ECM) secretion of human dental pulp stem cells (DPSCs), giving rise to increased cell adhesion on ECM and a stronger osteogenic/odontogenic differentiation capacity of DPSCs. Further, the mechanism underlying CDots-enhanced ECM secretion is revealed by the transcriptome analysis, Western blot assay and molecular dynamics simulation, identifying that the pharmacological activities of CDots are originated from a reasonable activation of the autophagy, which is mediated by regulating phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin signaling pathway. Based on the abundant CDots-induced ECM and thereby the reinforcement of the cell-ECM adhesion, an intact dental pulp stem cell sheet can be achieved, which in return promote in vivo the efficient regeneration of dentin-pulp complex as well as blood vessels.
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Affiliation(s)
- 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
| | - 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
| | - Wenhuan Bu
- School and Hospital of Stomatology, China Medical University, Shenyang, 110122, PR China
| | - Nianqiang Jin
- School and Hospital of Stomatology, China Medical University, Shenyang, 110122, PR China
| | - Yuan Meng
- School and Hospital of Stomatology, China Medical University, Shenyang, 110122, PR China
| | - Yi Wang
- Graduate Program in Applied Physics, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - 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
| | - Xiaowei Xu
- Hospital of Stomatology, Jilin University, Changchun, 130021, PR China
| | - Ding Zhou
- Hospital of Stomatology, Jilin University, Changchun, 130021, PR China
| | - Hongchen Sun
- Hospital of Stomatology, Jilin University, Changchun, 130021, PR China
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16
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Lou Q, Ni Q, Niu C, Wei J, Zhang Z, Shen W, Shen C, Qin C, Zheng G, Liu K, Zang J, Dong L, Shan C. Carbon Nanodots with Nearly Unity Fluorescent Efficiency Realized via Localized Excitons. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203622. [PMID: 36002336 PMCID: PMC9596859 DOI: 10.1002/advs.202203622] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/03/2022] [Indexed: 05/19/2023]
Abstract
Carbon nanodots (CDs) have emerged as an alternative option for traditional nanocrystals due to their excellent optical properties and low toxicity. Nevertheless, high emission efficiency is a long-lasting pursuit for CDs. Herein, CDs with near-unity emission efficiency are prepared via atomic condensation of doped pyrrolic nitrogen, which can highly localize the excited states thus lead to the formation of bound excitons and the symmetry break of the π-electron conjugation. The short radiative lifetimes (<8 ns) and diffusion lengths (<50 nm) of the CDs imply that excitons can be efficiently localized by radiative recombination centers for a defect-insensitive emission of CDs. By incorporating the CDs into polystyrene, flexible light-converting films with a high solid-state quantum efficiency of 84% and good resistance to water, heating, and UV light are obtained. With the CD-polymer films as light conversion layers, CD-based white light-emitting diodes (WLEDs) with a luminous efficiency of 140 lm W-1 and a flat-panel illumination system with lighting sizes of more than 100 cm2 are achieved, matching state-of-the-art nanocrystal-based LEDs. These results pave the way toward carbon-based luminescent materials for solid-state lighting technology.
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Affiliation(s)
- Qing Lou
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Qingchao Ni
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Chunyao Niu
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Jianyong Wei
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
- State Key Laboratory of Advanced Optical Communication Systems and NetworksUniversity of Michigan–Shanghai Jiao Tong University Joint InstituteShanghai Jiao Tong UniversityShanghai200240China
| | - Zhuangfei Zhang
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Weixia Shen
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Chenglong Shen
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Chaochao Qin
- Henan Key Laboratory of Infrared Materials and Spectrum Measures and ApplicationsCollege of Physics and Materials ScienceHenan Normal UniversityXinxiang453007China
| | - Guangsong Zheng
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Kaikai Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Jinhao Zang
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Lin Dong
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Chong‐Xin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
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17
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Li R, Liu J, Xia C, Feng T, Zhu Z, Yang B. Highly efficient solid-state luminescence of carbonized polymer dots without matrix. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Li L, Han Y, Wang L, Jiang W, Zhao H. Dye Plants Derived Carbon Dots for Flexible Secure Printing. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3168. [PMID: 36144956 PMCID: PMC9506027 DOI: 10.3390/nano12183168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/02/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Carbon dots (C-dots) are fluorescent nanomaterials, exhibiting excellent structure-dependent optical properties for various types of optical and electrical applications. Although many precursors were used for C-dots production, it is still a challenge to produce high-quality C-dots using environmentally-friendly natural precursors. In this work, multiple-colored colloidal C-dots were synthesized via a heating reaction using natural plant dyes as precursors, for example, Indigo, Carcuma longa, and Sophora japonica L. The as-prepared C-dots have absorption in the UV range of 220 to 450 nm with the typical emission ranging from 350 to 600 nm. The as-obtained C-dots have a quantum yield as high as 3.8% in an aqueous solution. As a proof-of-concept, we used the as-prepared C-dots as fluorescence inks for textile secure printing. The printed patterns are almost invisible under daylight and have distinct and clear patterns under 365 and 395 nm light, proving the great potential in optical anti-counterfeiting. This work demonstrates the advanced strategy for high-performance C-dots production from natural dyes and their potential application in flexible secure printing systems.
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Affiliation(s)
- Linlin Li
- College of Textiles & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Yuanyuan Han
- College of Textiles & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Lihua Wang
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Wei Jiang
- College of Textiles & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Haiguang Zhao
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
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Liu Y, Xu B, Lu M, Li S, Guo J, Chen F, Xiong X, Yin Z, Liu H, Zhou D. Ultrasmall Fe-doped carbon dots nanozymes for photoenhanced antibacterial therapy and wound healing. Bioact Mater 2022; 12:246-256. [PMID: 35310377 PMCID: PMC8897311 DOI: 10.1016/j.bioactmat.2021.10.023] [Citation(s) in RCA: 82] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/18/2021] [Accepted: 10/18/2021] [Indexed: 12/22/2022] Open
Abstract
Pathogenic bacteria pose a devastating threat to public health. However, because of the growing bacterial antibiotic resistance, there is an urgent need to develop alternative antibacterial strategies to the established antibiotics. Herein, iron-doped carbon dots (Fe-CDs, ∼3 nm) nanozymes with excellent photothermal conversion and photoenhanced enzyme-like properties are developed through a facile one-pot pyrolysis approach for synergistic efficient antibacterial therapy and wound healing. In particular, Fe doping endows CDs with photoenhanced peroxidase (POD)-like activity, which lead to the generation of heat and reactive oxygen species (ROS) for Gram-positive and Gram-negative bacteria killing. This study demonstrates Fe-CDs have significant wound healing efficiency of Fe-CDs by preventing infection, promoting fibroblast proliferation, angiogenesis, and collagen deposition. Furthermore, the ultrasmall size of Fe-CDs possesses good biocompatibility favoring clinical translation. We believe that the nanozyme-mediated therapeutic platform presented here is expected to show promising applications in antibacterial. Iron doped carbon dots (Fe-CDs, ~3 nm) exhibited excellent photothermal conversion and photoenhanced enzyme-like properties. Fe-CDs as nanozyme and photothermal agent possess outstanding antibacterial ratio against both S. aureus and E. coli. The photoresponsive nanozyme-mediated therapeutic platform exhibited great promise for bacterial-infected wound healing.
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20
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Formation, photoluminescence and in vitro bioimaging of polyethylene glycol-derived carbon dots: The molecular weight effects. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124625] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Liu F, Xu S, Xia P, Yang H, Qian Z, Jiang Y, Wang Z, Ban D, Wang C. Anhydride-Terminated Solid-State Carbon Dots with Bright Orange Emission Induced by Weak Excitonic Electronic Coupling. ACS APPLIED MATERIALS & INTERFACES 2022; 14:5762-5774. [PMID: 35045698 DOI: 10.1021/acsami.1c18786] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this work, fluorescent solid carbon dots (CDs) welcome a new member, namely anhydride-terminated CDs, which have a photoluminescence quantum yield (PLQY) of 28% for orange-emitted CDs at 580 nm in powder form. For the first time, we revealed that the electronic coupling of the functional groups should be a crucial factor affecting the optical properties of solid CDs. Due to the negligible hydrogen bonding interaction between the anhydride groups, the electronic coupling of excitons between neighboring anhydride groups is weak, leading to a high PLQY of 28% and an immobile emission peak at 580 nm in solid state. Anhydride-terminated CDs can be partly converted into carboxyl-terminated CDs after dispersion in ethanol. However, the strong electronic coupling of carboxyl groups at high concentration generates the stacking mode of J-aggregates, giving rise to a red-shifted emission from 450 to 515 nm as well as quenched fluorescence in solid state. In comparison, a useful blue emission for solid-state CDs occurs from low sp2 hybridized carbon atoms, which possess weak electronic coupling and a stationary emission band at 450 nm in both solution and solid state. By adjusting the feed ratio of the reactants, the relevant intensities between the emission from low sp2 hybridized carbon atoms at 450 nm and the emission from anhydride groups at 580 nm can be controlled. As a result, single-component anhydride-terminated CD powder with tunable emission color from orange to white light can be achieved. As-prepared anhydride-terminated CDs can be used for fabricating light-emitting diodes (LEDs), white LEDs, and luminescent solar concentrators (LSCs).
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Affiliation(s)
- Fan Liu
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Shuhong Xu
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Pengfei Xia
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Hongyu Yang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Ziting Qian
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Yuan Jiang
- Lab for Nanoelectronics and NanoDevices, Lab Department of Electronics Information, Hangzhou Dianzi University, Hangzhou 310018, People's Republic of China
| | - Zhuyuan Wang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Dayan Ban
- Waterloo Institute for Nanotechnology and Department of Electrical and Computer Engineering, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - Chunlei Wang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
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22
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Bai J, Yuan G, Chen X, Zhang L, Zhu Y, Wang X, Ren L. Simple Strategy for Scalable Preparation Carbon Dots: RTP, Time-Dependent Fluorescence, and NIR Behaviors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104278. [PMID: 34962091 PMCID: PMC8844479 DOI: 10.1002/advs.202104278] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Indexed: 05/19/2023]
Abstract
Transforming carbon dots (CDs) fluorescent materials into smart materials with complex functions is a topic of great interest to nanoscience. However, designing CDs with regulating fluorescence/phosphorescence that can be visually monitored with the environment changes in real-time remains a challenge. Here, a very simple strategy, one-step solvent-free catalytic assistant strategy, which is low cost, facile, environment-friendly, and high throughput, is put forward. Hydrogen bond is used to manipulate nanostructure of CDs, and the obtained carbon dots (M-CDs) show a series of attractive properties including matrix-free room-temperature phosphorescence, time-dependent fluorescence, and near-infrared emissive characteristics. Different from the traditional aggregation caused quenching or aggregation-induced emission fluorescent materials, M-CDs exhibit unprecedented and unique dispersion induced redshift fluorescence phenomenon, promoting the studies of fluorescence from static to dynamic. The causes of this phenomenon are further analyzed in detail. As a kind of intelligent fluorescent materials, this new designed CDs greatly enrich the basic recognition of CDs by illustrating the relationship between redshift fluorescence behaviors and the dispersion states, and may provide with an opportunity for solid-state fluorescent materials, anti-counterfeiting, cellular imaging, and hopefully many others.
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Affiliation(s)
- Jianliang Bai
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Guojun Yuan
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Xu Chen
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Lu Zhang
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Yaqing Zhu
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Xinyu Wang
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Lili Ren
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
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23
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Qu Y, Bai X, Li D, Zhang X, Liang C, Zheng W, Qu S. Solution-processable carbon dots with efficient solid-state red/near-infrared emission. J Colloid Interface Sci 2022; 613:547-553. [PMID: 35063786 DOI: 10.1016/j.jcis.2021.12.192] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/04/2021] [Accepted: 12/31/2021] [Indexed: 11/28/2022]
Abstract
Carbon dots (CDs) emerge as promising luminescent materials for potential applications in optoelectronics on basis of their merits including low cost, eco-friendliness and strong, color-tunable photoluminescence (PL). However, the research on solid-state emissive CDs is still at the primary stage because of the aggregation-caused quenching (ACQ) of PL and their poor film-formation ability. In this work, we produce CDs with branched-polyethylenimine (b-PEI) chemically functionalized on the surfaces. The thus newly synthesized P-CDs successfully overcome the bottleneck of ACQ effect and display efficient red and NIR emission in aggregate state. Under the excitation of 520 nm, a strong red emission (maxima of 640 nm) with a high photoluminescence quantum yield (PLQY) of 21% was observed for the P-CDs in neat film. Moreover, this design strategy endows the P-CDs with good film-formation ability via solution spin-coating, which significantly increases its value for the film-based optoelectronic devices.
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Affiliation(s)
- Yanfei Qu
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Xuewei Bai
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Di Li
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China.
| | - Xiaoyu Zhang
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Chao Liang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa 999078, Macau
| | - Weitao Zheng
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR 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.
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24
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Han S, Dai R, Hu Y, Han L. Fluorometric and colorimetric detection of cerium(IV) ion using carbon dots and bathophenanthroline-disulfonate-ferrum(II) complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 264:120295. [PMID: 34450572 DOI: 10.1016/j.saa.2021.120295] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 08/09/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
Cerium, an abundant lanthanide element, is widely used in human industry. The accumulation of Ce4+ ion, however, will damage the environment and biological organism. Therefore, its facile detection is highly needed. Herein, we design a hybrid sensing platform consisting of carbon dots (C-dots) and bathophenanthroline-disulfonate-Fe2+ complex (Bphen-Fe2+) for trace-level determination of Ce4+. Based on inner filter effect (IFE), the red-colored Bphen-Fe2+ complex severely quenches the fluorescence of C-dots. After addition of Ce4+, Fe2+ is oxidized to Fe3+, and the colorless Bphen-Fe3+ complex generates, which weakens the IFE efficiency and leads to the fluorescence recovery of C-dots. Meanwhile, due to the decreasing amount of Bphen-Fe2+ upon Ce4+ addition, the red color of the solution gradually fades, which enables visual detection of Ce4+ by the naked eyes. Under the optimized conditions, the C-dots/Bphen-Fe2+ system realizes the fluorometric and colorimetric sensing of Ce4+ in the range of 0.5-100 and 1.9-80 μM, with the limits of detection as low as 0.5 and 1.9 μM, respectively. This method also shows high selectivity over other common ions, and has an excellent applicability for monitoring of Ce4+ in real water samples.
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Affiliation(s)
- Sujie Han
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Ruoyu Dai
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Yaoping Hu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China; Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo University, Ningbo 315211, China; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Lei Han
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
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25
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26
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Wang M, Zhang K, Ji F, Guo Y, Wang C, Wang S, Chu Y, Zhao G. CDs/ZnO composite material with solid state fluorescence performance for quantitative determination of methyl red content and antibacterial properties. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.08.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Ren S, Liu B, Han G, Zhao H, Zhang Y. Surface chemistry in calcium capped carbon quantum dots. NANOSCALE 2021; 13:12149-12156. [PMID: 34231641 DOI: 10.1039/d1nr02763h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Colloidal carbon quantum dots (C-dots) have attracted a lot of attention because of their excellent optical properties for various types of applications. Due to the complicated structure of C-dots, the photoluminescence (PL) mechanism of C-dots is still unclear. In particular, it is still a big challenge to understand well the surface chemistry of C-dots. In this work, we used a vacuum-heating approach to produce high-quality C-dots. With different purification procedures, the surface chemistry of C-dots can be well-controlled. Removal of Ca2+ by Na2CO3 led to the disappearance of the absorption at 405 nm and a decrease of the quantum yield. In addition, the Na2CO3 treated C-dots exhibited an excitation-dependent PL behavior. These results confirmed that Ca2+ can interact with the surface functional group of C[double bond, length as m-dash]O of the C-dots, forming a stable structure surrounding the C-dot core, which contributed to a high quantum yield (QY) of 65%, excitation-independent PL behavior and absorption at 405 nm. Furthermore, the PL of the C-dots is strongly dependent on the pH, indicating that the Ca2+ capped C-dots could be used as pH indicators. Our finding provides clear evidence for the surface-chemistry dependent PL behavior of C-dots.
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Affiliation(s)
- Shihuan Ren
- College of Textiles & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P. R. China
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28
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Hagiwara K, Horikoshi S, Serpone N. Photoluminescent Carbon Quantum Dots: Synthetic Approaches and Photophysical Properties. Chemistry 2021; 27:9466-9481. [PMID: 33877732 DOI: 10.1002/chem.202100823] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Indexed: 12/22/2022]
Abstract
A number of synthetic methodologies and applications of carbon quantum dots (CQDs) have been reported since they were first discovered nearly two decades ago. Unlike metal-based or semiconductor-based (e. g., metal chalcogenides) quantum dots (MSQDs), CQDs have the unique feature of being prepared through a variety of synthetic protocols, which are typically understood from considerations of reaction models and photoluminescence mechanisms. Consequently, this brief review article describes quantum dots, in general, and CQDs, in particular, from various viewpoints: (i) their definition, (ii) their photophysical properties, and (iii) the superiority of CQDs over MSQDs. Where possible, comparisons are made between CQDs and MSQDs. First, however, the review begins with a general brief description of quantum dots (QDs) as nanomaterials (sizes≤10 nm), followed by a short description of MSQDs and CQDs. Described subsequently are the various top-down and bottom-up approaches to synthesize CQDs followed by their distinctive photophysical properties (emission spectra; quantum yields, Φs).
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Affiliation(s)
- Kenta Hagiwara
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, Tokyo, 102-8552, Japan
| | - Satoshi Horikoshi
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, Tokyo, 102-8552, Japan
| | - Nick Serpone
- PhotoGreen Laboratory, Dipartimento di Chimica, Università degli Studi di Pavia, via Taramelli 12, Pavia, 27100, Italy
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29
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Ren C, Hao X, Wang L, Hu Y, Meng L, Zheng S, Ren F, Bu W, Wang H, Li D, Zhang K, Sun H. Metformin Carbon Dots for Promoting Periodontal Bone Regeneration via Activation of ERK/AMPK Pathway. Adv Healthc Mater 2021; 10:e2100196. [PMID: 33987977 DOI: 10.1002/adhm.202100196] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/15/2021] [Indexed: 12/14/2022]
Abstract
The osteogenic potential of mesenchymal stem cells (MSCs) is severely impaired under persistent inflammation of periodontitis. A highly efficient way to promote or rescue osteogenic potential of MSCs under inflammation remains an unmet goal. Herein, metformin carbon dots (MCDs) with excellent biocompatibility are prepared from metformin hydrochloride and citric acid via a hydrothermal method. The MCDs can more effectively enhance the alkaline phosphatase (ALP) activity, calcium deposition nodules formation, expression of osteogenic genes and proteins in rat bone marrow mesenchymal stem cells (rBMSCs) than metformin under both inflammatory and normal conditions. Moreover, a novel pathway of extracellular signal-regulated kinases (ERK)/AMP-activated protein kinase (AMPK) signaling is involved in the MCDs-induced osteogenesis. In periodontitis rats, MCDs can effectively regenerate the lost alveolar bone, but not the metformin. Taken together, MCDs can be the promising candidate nanomaterial for periodontitis treatment. This work may provide a new pharmacological target of ERK/AMPK pathway for treating bone loss and also give additional insights into developing nanodrugs from the numerous medications.
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Affiliation(s)
- Chunxia Ren
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling Hospital of Stomatology Jilin University Changchun 130021 P. R. China
| | - Xinqing Hao
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling Hospital of Stomatology Jilin University Changchun 130021 P. R. China
| | - Lu Wang
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling Hospital of Stomatology Jilin University Changchun 130021 P. R. China
| | - Yue Hu
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling Hospital of Stomatology Jilin University Changchun 130021 P. R. China
| | - Lin Meng
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling Hospital of Stomatology Jilin University Changchun 130021 P. R. China
| | - Shize Zheng
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling Hospital of Stomatology Jilin University Changchun 130021 P. R. China
| | - Feilong Ren
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling Hospital of Stomatology Jilin University Changchun 130021 P. R. China
| | - Wenhuan Bu
- School of Stomatology China Medical University Shenyang 110001 P. R. China
| | - Huan Wang
- State Key Laboratory of Rare Earth Resources Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Daowei Li
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling Hospital of Stomatology Jilin University Changchun 130021 P. R. China
| | - Kai Zhang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China
| | - Hongchen Sun
- Hospital of Stomatology Jilin University Changchun 130021 P. R. China
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30
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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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31
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Zhao Y, Li Y, Zhang P, Yan Z, Zhou Y, Du Y, Qu C, Song Y, Zhou D, Qu S, Yang R. Cell-based fluorescent microsphere incorporated with carbon dots as a sensitive immunosensor for the rapid detection of Escherichia coli O157 in milk. Biosens Bioelectron 2021; 179:113057. [DOI: 10.1016/j.bios.2021.113057] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/06/2021] [Accepted: 01/28/2021] [Indexed: 12/11/2022]
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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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33
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Liang Z, Pan X, Li W, Kou E, Kang Y, Lei B, Song S. Dose-Dependent Effect of ZnO Quantum Dots for Lettuce Growth. ACS OMEGA 2021; 6:10141-10149. [PMID: 34056168 PMCID: PMC8153660 DOI: 10.1021/acsomega.1c00205] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
As the cadmium-free semiconductor quantum dots, ZnO quantum dots (ZnO QDs) have wide potential applications in agriculture. However, the effects of ZnO quantum dots on crop growth and nutritional quality have not been fully studied. In this work, the lettuce was sprayed with different concentrations of ZnO QDs from 50 to 500 mg·L-1 to evaluate their influence on lettuce antioxidant, biomass, and nutritional quality. The results showed that ZnO QDs existed in the lettuce in the form of Zn2+. Lettuce treated with 500 mg·L-1 ZnO QDs would produce a large amount of reactive oxygen species (ROS), which adversely affected the absorption of nutrients, soluble protein content, and chlorophyll content, thus reducing plant biomass. When the concentrations range from 50 to 200 mg·L-1, the antioxidant enzyme systems of lettuce were triggered to counteract the damage caused by excessive ROS. Moreover, ZnO QDs at this level promoted Ca, Mg, Fe, Mn, Zn, and B absorption and accumulation; increased soluble sugar content; and improved the lettuce biomass and nutritional quality.
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Affiliation(s)
- Zhihao Liang
- College
of Horticulture, South China Agricultural
University, Guangzhou 510642, P. R. China
| | - Xiaoqin Pan
- College
of Horticulture, South China Agricultural
University, Guangzhou 510642, P. R. China
- 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
| | - Erfeng Kou
- College
of Horticulture, South China Agricultural
University, Guangzhou 510642, P. R. China
- 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
| | - Yunyan Kang
- College
of Horticulture, South China Agricultural
University, Guangzhou 510642, P. R. China
| | - Bingfu Lei
- College
of Horticulture, South China Agricultural
University, Guangzhou 510642, P. R. China
- 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
| | - Shiwei Song
- College
of Horticulture, South China Agricultural
University, Guangzhou 510642, P. R. China
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Zhao B, Tan Z. Fluorescent Carbon Dots: Fantastic Electroluminescent Materials for Light-Emitting Diodes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2001977. [PMID: 33854872 PMCID: PMC8024999 DOI: 10.1002/advs.202001977] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/08/2020] [Indexed: 05/18/2023]
Abstract
Fluorescent carbon dots (CDs) have emerged as fantastic luminescent nanomaterials with significant potentials on account of their unique photoluminescence properties, high stability, and low toxicity. The application of CDs in electroluminescent light-emitting diodes (LEDs) have aroused much interest in recent years. Herein, the state-of-the-art advances of CD-based electroluminescent LEDs are summarized, in which CDs act as active emission layer and interface transport layer materials is discussed and highlighted. Besides, the device structure of CD-based LEDs and preparation methods of CDs are also introduced. Furthermore, the opportunities and challenges for achieving high performance CD-based electroluminescent LED devices are presented. This review article is expected to stimulate more unprecedented achievements derived from CDs and CD-based electroluminescent LEDs, thus further promoting their practical applications in future solid-state lighting and flat-panel displays.
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Affiliation(s)
- Biao Zhao
- Beijing Advanced Innovation Center for Soft Matter Science and EngineeringState Key Laboratory of Organic‐Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029China
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and EngineeringState Key Laboratory of Organic‐Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029China
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Liu J, Li R, Yang B. Carbon Dots: A New Type of Carbon-Based Nanomaterial with Wide Applications. ACS CENTRAL SCIENCE 2020; 6:2179-2195. [PMID: 33376780 PMCID: PMC7760469 DOI: 10.1021/acscentsci.0c01306] [Citation(s) in RCA: 492] [Impact Index Per Article: 123.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Indexed: 05/07/2023]
Abstract
Carbon dots (CDs), as a new type of carbon-based nanomaterial, have attracted broad research interest for years, because of their diverse physicochemical properties and favorable attributes like good biocompatibility, unique optical properties, low cost, ecofriendliness, abundant functional groups (e.g., amino, hydroxyl, carboxyl), high stability, and electron mobility. In this Outlook, we comprehensively summarize the classification of CDs based on the analysis of their formation mechanism, micro-/nanostructure and property features, and describe their synthetic methods and optical properties including strong absorption, photoluminescence, and phosphorescence. Furthermore, the recent significant advances in diverse applications, including optical (sensor, anticounterfeiting), energy (light-emitting diodes, catalysis, photovoltaics, supercapacitors), and promising biomedicine, are systematically highlighted. Finally, we envisage the key issues to be challenged, future research directions, and perspectives to show a full picture of CDs-based materials.
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Affiliation(s)
- Junjun Liu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Rui Li
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
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Wang H, Zhang Z, Yan Q, Zhang C, Xing Y, Xiong Y, Zhang F, Wang Z. Highly Luminescent Solid‐State Carbon Dots Embedded in a Boric Acid Matrix. ChemistrySelect 2020. [DOI: 10.1002/slct.202004009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Henggang Wang
- Key Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis Ministry of Education College of Chemistry & Environmental Science Hebei University Baoding 071002 China
| | - Zhen Zhang
- Key Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis Ministry of Education College of Chemistry & Environmental Science Hebei University Baoding 071002 China
| | - Qinqin Yan
- Key Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis Ministry of Education College of Chemistry & Environmental Science Hebei University Baoding 071002 China
| | - Chenyang Zhang
- Key Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis Ministry of Education College of Chemistry & Environmental Science Hebei University Baoding 071002 China
| | - Yifei Xing
- Key Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis Ministry of Education College of Chemistry & Environmental Science Hebei University Baoding 071002 China
| | - Yuan Xiong
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry City University of Hong Kong Hong Kong China
| | - Feng Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 China
| | - Zhenguang Wang
- Key Laboratory of Chemical Biology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis Ministry of Education College of Chemistry & Environmental Science Hebei University Baoding 071002 China
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Su Y, Xie Z, Zheng M. Carbon dots with concentration-modulated fluorescence: Aggregation-induced multicolor emission. J Colloid Interface Sci 2020; 573:241-249. [DOI: 10.1016/j.jcis.2020.04.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 10/24/2022]
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Zhang K, Shi Y, Jia Y, Li P, Zhang X, Feng X, Zhu L, Sun Y, Hu W, Zhao G. Tunable dual fluorescence emissions with high photoluminescence quantum yields modulated by Na ion dispersion method for purely solid state N-doped carbon dots. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112548] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Li W, Guo H, Li G, Chi Z, Chen H, Wang L, Liu Y, Chen K, Le M, Han Y, Yin L, Vajtai R, Ajayan PM, Weng Y, Wu M. White luminescent single-crystalline chlorinated graphene quantum dots. NANOSCALE HORIZONS 2020; 5:928-933. [PMID: 32202272 DOI: 10.1039/d0nh00053a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A new class of white luminescent materials, white-light-emitting graphene quantum dots (WGQDs), have attracted increasing attention because of their unique features and potential applications. Herein, we designed and synthesized a novel WGQDs via a solvothermal molecular fusion strategy. The modulation of chlorine doping amount and reaction temperature gives the WGQDs a single-crystalline structure and bright white fluorescence properties. In particular, the WGQDs also exhibit novel and robust white phosphorescence performance for the first time. An optimum fluorescence quantum yield of WGQDs is 34%, which exceeds the majority of reported WGQDs and other white luminescent materials. The WGQDs display broad-spectrum absorption within almost the entire visible light region, broad full width at half maximum and extend their phosphorescence emission to the entire white long-wavelength region. This unique dual-mode optical characteristic of the WGQDs originates from the synergistic effect of low-defect and high chlorine-doping in WGQDs and enlarges their applications in white light emission devices, cell nuclei imaging, and information encryption. Our finding provides us an opportunity to design and construct more advanced multifunctional white luminescent materials based on metal-free carbon nanomaterials.
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Affiliation(s)
- Weitao Li
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China.
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Zhai Y, Shen F, Zhang X, Jing P, Li D, Yang X, Zhou D, Xu X, Qu S. Synthesis of green emissive carbon dots@montmorillonite composites and their application for fabrication of light-emitting diodes and latent fingerprints markers. J Colloid Interface Sci 2019; 554:344-352. [DOI: 10.1016/j.jcis.2019.07.022] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/07/2019] [Accepted: 07/08/2019] [Indexed: 01/06/2023]
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Li D, Wang S, Azad F, Zhao L, Su S. A simple method for the preparation of multi-color carbon quantum dots by using reversible regulatory color transformation. Mikrochim Acta 2019; 186:612. [DOI: 10.1007/s00604-019-3717-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 07/31/2019] [Indexed: 12/28/2022]
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Anwar S, Ding H, Xu M, Hu X, Li Z, Wang J, Liu L, Jiang L, Wang D, Dong C, Yan M, Wang Q, Bi H. Recent Advances in Synthesis, Optical Properties, and Biomedical Applications of Carbon Dots. ACS APPLIED BIO MATERIALS 2019; 2:2317-2338. [DOI: 10.1021/acsabm.9b00112] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sadat Anwar
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Haizhen Ding
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Mingsheng Xu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Xiaolong Hu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Zhenzhen Li
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Jingmin Wang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Li Liu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Lei Jiang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Dong Wang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Chen Dong
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Manqing Yan
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Qiyang Wang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Hong Bi
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, P. R. China
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Huang S, Gu J, Ye J, Fang B, Wan S, Wang C, Ashraf U, Li Q, Wang X, Shao L, Song Y, Zheng X, Cao F, Cao S. Benzoxazine monomer derived carbon dots as a broad-spectrum agent to block viral infectivity. J Colloid Interface Sci 2019; 542:198-206. [PMID: 30739009 DOI: 10.1016/j.jcis.2019.02.010] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/30/2019] [Accepted: 02/03/2019] [Indexed: 11/15/2022]
Abstract
Multiple viruses can cause infection and death of millions annually. Of these, flaviviruses are found to be highly prevalent in recent years with no distinctive antiviral therapies. Therefore, there is a desperate need for broad-spectrum antiviral drugs that can be active against a large number of existing and emerging viruses. Herein, we prepared a kind of benzoxazine monomer derived carbon dots (BZM-CDs) and demonstrated their infection-blocking ability against life-threatening flaviviruses (Japanese encephalitis, Zika, and dengue viruses) and non-enveloped viruses (porcine parvovirus and adenovirus-associated virus). It was found that BZM-CDs could directly bind to the surface of the virion, and eventually the first step of virus-cell interaction was impeded. The developed nanoparticles are active against both flaviviruses and non-enveloped viruses in vitro. Thus, the application of BZM-CDs may constitute an intriguing broad-spectrum approach to rein in viral infections.
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Affiliation(s)
- Shaomei Huang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Jiangjiang Gu
- College of Science, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
| | - Jing Ye
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Bin Fang
- College of Science, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Shengfeng Wan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Caoyu Wang
- College of Science, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Usama Ashraf
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Qi Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Xugang Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Lin Shao
- Wuhan Brain VTA Technology Co. Ltd., Wuhan, Hubei 430070, PR China
| | - Yunfeng Song
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Xinsheng Zheng
- College of Science, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Feifei Cao
- College of Science, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Shengbo Cao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
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