1
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Chen W, Zhu Z. Ultralong luminescence lifetime imaging of edible plant tissue for humidity sensing in food packaging by a smartphone. Food Chem 2024; 454:139778. [PMID: 38805918 DOI: 10.1016/j.foodchem.2024.139778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 04/19/2024] [Accepted: 05/19/2024] [Indexed: 05/30/2024]
Abstract
The safety of luminescence sensors and probes used in food packaging should be seriously considered, while most luminescence sensors were artificially synthesized with unclear toxicity, and cannot be directly used as indicators that were in contact with food. To overcome this problem, a humidity indicator based on an edible plant tissue was developed without any chemical processing. We found that garlic bulbs could emit significant persistent luminescence after drying at room temperature. The luminescence lifetime decreases from hundreds of milliseconds to tens of milliseconds as humidity increases. The long-lived luminescence could easily be detected through smartphones without any sophisticated instruments. The edible garlic is expected to be used as a humidity indicator in food packaging without worrying about food safety. Furthermore, the interference of scattered light and short-lived fluorescence from foods and packages can be eliminated in time-resolved luminescence imaging, greatly increasing the signal-to-noise ratio.
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Affiliation(s)
- Wenxue Chen
- Department of Chemistry and Chemical Engineering, School of Bioengineering and Health, State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Zece Zhu
- Department of Chemistry and Chemical Engineering, School of Bioengineering and Health, State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
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2
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Zhang S, Ma H, Sun L, Li M, Zhang Y, Ma J, Wang Y, Zhang Y. A Simple and Universal Approach to Synthesizing Multi-Confined Carbon Dots with Thermally Activated Delayed Fluorescence. J Fluoresc 2024:10.1007/s10895-024-03901-8. [PMID: 39141276 DOI: 10.1007/s10895-024-03901-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 08/02/2024] [Indexed: 08/15/2024]
Abstract
Afterglow materials possess the remarkable capability to harness the energy and subsequently emit light after irradiation is turned off. Owing to their extraordinary ultralong lifetime, afterglow materials have garnered significant interest across various domains such as sensing, optoelectronics, bioimaging, and information encryption. However, these materials typically exhibit temperature sensitivity, rendering their afterglow emission susceptible to efficient quenching at room temperature. Consequently, this study presents herein a straightforward, simple, and universal approach for synthesizing metal-free carbon dots (CDs) endowed with thermally activated delayed fluorescence (TADF) characteristics at room temperature. In this study, TADF-CDs were simply synthesized by pyrolyzing boronic acid (BA) and urea at 500 ℃ for 3 h. Benefiting from the multi-confined effects facilitated by the robust structure of BA matrix, in conjunction with the co-doped heteroatoms of nitrogen and boron, the resultant TADF-CDs manifest remarkably prolonged afterglow TADF emission, characterized by a calculated lifetime of 184.64 ms; moreover, the blue afterglow emission remains perceptible to the naked eye for more than 6 s. The attributes of TADF-CDs were comprehensively elucidated through rigorous characterization, and the universality of the approach was corroborated through experimentation involving fourteen control CDs. Leveraging their distinctive TADF attributes, the prepared TADF-CDs were subsequently employed in advanced applications such as anti-counterfeiting and information encryption.
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Affiliation(s)
- Shiyu Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Hongyan Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Lingbo Sun
- Medical College of Yan'an University, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Miao Li
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Yarong Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Jing Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Yixuan Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Yuecheng Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China.
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3
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Sun X, Luo S, Zhang L, Miao Y, Yan G. Photodynamic antibacterial activity of oxidase-like nanozyme based on long-lived room-temperature phosphorescent carbon dots. Food Chem 2024; 434:137541. [PMID: 37757701 DOI: 10.1016/j.foodchem.2023.137541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
In this study, a novel long-lived room-temperature phosphorescent (RTP) carbon dots (P-CDs) with the properties of ultraviolet/visible (UV/Vis) light photoresponsive oxidase-like nanozyme were synthesized from diethylenetriaminepentaacetic acid and through a one-step hydrothermal method. P-CDs were used as a light-driven oxidative-like enzyme for antimicrobial studies. The results showed that under UV/Vis light irradiation, P-CDs could efficiently convert O2 into 1O2, and the strong oxidizing property of 1O2 greatly enhanced the growth inhibition of P-CDs on Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli). Meanwhile, P-CDs exhibited good photodynamic antifungal properties against Botrytis cinerea (B. cinerea). Then the P-CDs were made into P-CDs/PVA films, which effectively prolonged the preservation period of fruits under photodynamic antibacterial action. The good biocompatibility and efficient photosensitive oxygen activation can make P-CDs a more practically useful oxidase-like nanozyme.
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Affiliation(s)
- Xiaojie Sun
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030006, China
| | - Shiqing Luo
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030006, China
| | - Lifang Zhang
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030006, China; Research Institute of Materials Science of Shanxi Normal University & Collaborative Innovation Center for Shanxi Advanced Permanent Magnetic Materials and Technology, Taiyuan 030006, China.
| | - Yanming Miao
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China.
| | - Guiqin Yan
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
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4
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Chang B, Chen J, Bao J, Sun T, Cheng Z. Molecularly Engineered Room-Temperature Phosphorescence for Biomedical Application: From the Visible toward Second Near-Infrared Window. Chem Rev 2023; 123:13966-14037. [PMID: 37991875 DOI: 10.1021/acs.chemrev.3c00401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Phosphorescence, characterized by luminescent lifetimes significantly longer than that of biological autofluorescence under ambient environment, is of great value for biomedical applications. Academic evidence of fluorescence imaging indicates that virtually all imaging metrics (sensitivity, resolution, and penetration depths) are improved when progressing into longer wavelength regions, especially the recently reported second near-infrared (NIR-II, 1000-1700 nm) window. Although the emission wavelength of probes does matter, it is not clear whether the guideline of "the longer the wavelength, the better the imaging effect" is still suitable for developing phosphorescent probes. For tissue-specific bioimaging, long-lived probes, even if they emit visible phosphorescence, enable accurate visualization of large deep tissues. For studies dealing with bioimaging of tiny biological architectures or dynamic physiopathological activities, the prerequisite is rigorous planning of long-wavelength phosphorescence, being aware of the cooperative contribution of long wavelengths and long lifetimes for improving the spatiotemporal resolution, penetration depth, and sensitivity of bioimaging. In this Review, emerging molecular engineering methods of room-temperature phosphorescence are discussed through the lens of photophysical mechanisms. We highlight the roles of phosphorescence with emission from visible to NIR-II windows toward bioapplications. To appreciate such advances, challenges and prospects in rapidly growing studies of room-temperature phosphorescence are described.
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Affiliation(s)
- Baisong Chang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jie Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jiasheng Bao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Zhen Cheng
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264000, China
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5
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Zhou S, Wang F, Feng N, Xu A, Sun X, Zhou J, Li H. Room Temperature Phosphorescence Carbon Dots: Preparations, Regulations, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301240. [PMID: 37086135 DOI: 10.1002/smll.202301240] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/06/2023] [Indexed: 05/03/2023]
Abstract
Room temperature phosphorescence (RTP) materials have drawn considerable attention by virtue of their outstanding features. Compared with organometallic complexes and pure organic compounds, carbon dots (CDs) have emerged as a new type of RTP materials, which show great advantages, such as moderate reaction condition, low toxicity, low cost, and tunable optical properties. In this review, the important progress made in RTP CDs is summarized, with an emphasis on the latest developments. The synthetic strategies of RTP CDs will be comprehensively summarized, followed by detailed introduction of their performance regulation and potential applications in anti-counterfeiting, information encryption, sensing, light-emitting diodes, and biomedicine. Finally, the remaining major challenges for RTP CDs are discussed and new opportunities in the future are proposed.
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Affiliation(s)
- Shengju Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, P. R. China
| | - Feixiang Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, P. R. China
| | - Ning Feng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Aoxue Xu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Xiaofeng Sun
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, P. R. China
| | - Jin Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, P. R. China
| | - Hongguang Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
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6
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Song Y, Xie R, Tian M, Mao B, Chai F. Controllable synthesis of bifunctional magnetic carbon dots for rapid fluorescent detection and reversible removal of Hg 2. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131683. [PMID: 37276695 DOI: 10.1016/j.jhazmat.2023.131683] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/30/2023] [Accepted: 05/21/2023] [Indexed: 06/07/2023]
Abstract
Mercury is one of the most toxic heavy metals, whose identification and separation are crucial for environmental remediation. Till now, it remains a significant challenge upon simultaneous detection and removal of Hg2+. Herein, bifunctional probe magnetic carbon dots were synthesized and optimized via systematic structure manipulation of the carbon and iron precursors towards fluorescence, Hg2+ adsorption and magnetic separation. The probe exhibited blue emission at 440 nm with high quantum yield of 55 % and a high paramagnetism with the saturation magnetization value of 22.70 emu/g. Furthermore, the fluorescent detection of Hg2+ with limit of 5.40 nM and high selectivity were achieved through surface structure manipulation with moderate -NH2, -SH and Fe contents. As a result, the magnetic removal of Hg2+ was consecutively effectuated with high removal efficiency of 98.30 %. The detection and recovery of Hg2+ in real samples were further verified and demonstrated the excellent environmental tolerance of probe. The reusability was viable with recycling at least three turns by external magnet. This work not only provides a promising approach for simultaneous detection and removal of heavy metal pollution, but also provides an excellent example as a versatile platform for multifunction integration via the structure manipulation for other applications.
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Affiliation(s)
- Ying Song
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China; Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Ruyan Xie
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China; Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Miaomiao Tian
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China; Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Baodong Mao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Fang Chai
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China; Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China.
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7
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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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8
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Shi H, Wu Y, Xu J, Shi H, An Z. Recent Advances of Carbon Dots with Afterglow Emission. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207104. [PMID: 36810867 DOI: 10.1002/smll.202207104] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Carbon dots (CDs) have gradually become a new generation of nano-luminescent materials, which have received extensive attention due to excellent optical properties, wide source of raw materials, low toxicity, and good biocompatibility. In recent years, there are many reports on the luminescent phenomenon of CDs, and great progress has been achieved. However,there are rarely systematic summaries on CDs with persistent luminescence. Here, a summary of the recent progress on persistent luminescent CDs, including luminous mechanism, synthetic strategies, property regulation, and potential applications, is given. First, a brief introduction is given to the development of CDs luminescent materials. Then, the luminous mechanism of afterglow CDs from room temperature phosphorescence (RTP), delayed fluorescence (DF), and long persistent luminescence (LPL) is discussed. Next, the constructed methods of luminescent CDs materials are summarized from two aspects, including matrix-free self-protected and matrix-protected CDs. Moreover, the regulation of afterglow properties from color, lifetime, and efficiency is presented. Afterwards, the potential applications of CDs, such as anti-counterfeiting, information encryption, sensing, bio-imaging, multicolor display, LED devices, etc., are reviewed. Finally, an outlook on the development of CDs materials and applications is proposed.
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Affiliation(s)
- Huixian Shi
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yang Wu
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
| | - Jiahui Xu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
| | - Huifang Shi
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
| | - Zhongfu An
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
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Wang K, Qu L, Yang C. Long-Lived Dynamic Room Temperature Phosphorescence from Carbon Dots Based Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2206429. [PMID: 36609989 DOI: 10.1002/smll.202206429] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/07/2022] [Indexed: 06/17/2023]
Abstract
As a type of room temperature phosphorescence (RTP) material, carbon dots (CDs) always show short lifetime and low phosphorescence efficiency. To counter these disadvantages, several strategies, such as embedding in rigid matrix, introducing of heteroatom, crosslink-enhanced emission, etc., are well developed. Consequently, lots of CDs-based RTP materials are obtained. Doping of CDs into various matrix is the dominant method for preparation of long-lived CDs-based RTP materials so far. The desired CDs@matrix composites always display outstanding RTP performances. Meanwhile, matrix-free CDs and carbonized polymer dots-based RTP materials are also widely developed. Amounts of CDs possessing ultra-long lived, multiple colored, and dynamic RTP emission are successfully obtained. Herein, the recent progress achieved in CDs-based RTP materials as well as the corresponding efficient strategies and emission mechanisms are summarized and reviewed in detail. Due to CDs-based RTP materials possess excellent chemical stability, photostability and low biological toxicity, they exhibit great application potential in the fields of anti-counterfeiting, data encryption, and biological monitoring. The application of the CDs-based RTP materials is also introduced in this review. As a promising functional material, development of long wavelength RTP emitting CDs with long lifetime is still challengeable, especially for the red and near-infrared emitting RTP materials.
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Affiliation(s)
- Kaiti Wang
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Lunjun Qu
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Chaolong Yang
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
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10
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Sun X, Luo S, Zhang L, Miao Y, Yan G. Photoresponsive oxidase-like phosphorescent carbon dots in colorimetric Hg2+ detection. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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11
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Yang L, Zhang Q, Huang Y, Luo C, Quan Z, Li H, Sun S, Xu Y. A sequential dual-lock strategy for generation of room-temperature phosphorescence of boron doped carbon dots for dynamic anti-counterfeiting. J Colloid Interface Sci 2022; 632:129-139. [DOI: 10.1016/j.jcis.2022.11.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/22/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022]
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12
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Huang A, Li Q, Li Z. Molecular Uniting Set Identified Characteristic (
MUSIC
) of Organic Optoelectronic Materials. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Arui Huang
- Hubei Key Lab on Organic and Polymeric Opto‐Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University Wuhan 430072 China
| | - Qianqian Li
- Hubei Key Lab on Organic and Polymeric Opto‐Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University Wuhan 430072 China
| | - Zhen Li
- Hubei Key Lab on Organic and Polymeric Opto‐Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University Wuhan 430072 China
- Institute of Molecular Aggregation Science, Tianjin University Tianjin 300072 China
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Cheng M, Cao L, Guo H, Dong W, Li L. Green Synthesis of Phosphorescent Carbon Dots for Anticounterfeiting and Information Encryption. SENSORS (BASEL, SWITZERLAND) 2022; 22:2944. [PMID: 35458926 PMCID: PMC9026503 DOI: 10.3390/s22082944] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/30/2022] [Accepted: 04/02/2022] [Indexed: 02/04/2023]
Abstract
Room-temperature phosphorescent (RTP) carbon dots (CDs) have promising applications in bioimaging, anticounterfeiting, and information encryption owing to their long lifetimes and wide Stokes shifts. Numerous researchers are interested in developing highly bright RTP CDs using environmentally friendly and safe synthesis processes (e.g., natural raw materials and zero-pollution production pathways). In this study, we successfully synthesized RTP CDs using a hydrothermal process employing natural vitamins as a raw material, ethylenediamine as a passivator, and boric acid as a phosphorescent enhancer, which is referred to as phosphorescent CD (PCD). The PCDs exhibit both bright blue fluorescence emission and green RTP emission, with a phosphorescence lifetime as long as 293 ms and an excellent green afterglow visible to the naked eye for up to 7.0 s. The total quantum yield is 12.69%. The phosphorescence quantum yield (PQY) is up to 5.15%. Based on the RTP performance, PCDs have been successfully employed for anticounterfeiting and information protection applications. The results of this study provide a green strategy for the scalable synthesis of RTP materials, which is a practical method for the fabrication of RTP materials with high efficiency and long afterglow lifetimes.
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Affiliation(s)
- Mingming Cheng
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China; (M.C.); (L.C.); (W.D.)
| | - Lei Cao
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China; (M.C.); (L.C.); (W.D.)
| | - Hanzhou Guo
- Changchun Guoke Medical Engineer and Technology Development Co., Ltd., Changchun 130033, China;
| | - Wenfei Dong
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China; (M.C.); (L.C.); (W.D.)
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), Suzhou 215163, China
| | - Li Li
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China; (M.C.); (L.C.); (W.D.)
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