1
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Zhang SN, Wang LL, Xiao TT, Zhang M, Yin XB. Carbon dots with enhanced red emission for ratiometric sensing and encryption applications. Anal Bioanal Chem 2024; 416:3985-3996. [PMID: 38581533 DOI: 10.1007/s00216-024-05252-6] [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: 12/21/2023] [Revised: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 04/08/2024]
Abstract
The excitation-dependent emission properties of carbon dots (Cdots) are extensively reported, but their red emission is often weak, limiting their wider application. Here we introduce ethidium bromide, as a functional precursor with red emission, to enhance the red emission for Cdots, with comparable intensity at a broad wavelength range to multi-emission Cdots (M-Cdots). We found that Cdots prepared with ethidium bromide/ethylenediamine exhibited strong blue and red emission at 440 and 615 nm, with optimal excitation at 360 and 470 nm as M-Cdots, respectively, but the Cdots from single ethidium bromide (EB-Cdots) possessed weak red emission. M-Cdots exhibited a broad absorption band at 478 nm, but a band blue-shifted to 425 nm was observed for EB-Cdots, while no absorption was observed at 478-425 nm for the Cdots prepared with citric acid and ethylenediamine. Thus, we proposed that C=O and C=N formed a π-conjugation structure as the absorption band at 478 nm for the red emission of M-Cdots, as also confirmed with the excitation at 470 nm. Moreover, the π-conjugation structure is fragile and sensitive to harsh conditions, so red emission was difficult to observe for the Cdots prepared with citric acid/ethylenediamine or single ethidium bromide. M-Cdots possess two centers for blue and red emission with different structures. The dual emission was therefore used for ratiometric sensing with dichromate (Cr2O72-) and formaldehyde (HCHO) as the targets using the intensity ratio of the emissions at 615 and 440 nm. Due to the comparable intensity at a broad wavelength range, we designed encryption codes with five excitations at 360, 400, 420, 450, and 470 nm as the inputs, and the emission colors were used for information decoding. Thus, we determined why red emission was difficult to realize for Cdots, and our results could motivate the design of red-emission Cdots for extensive applications.
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Affiliation(s)
- Sheng-Nan Zhang
- Institute for Frontier Medical Technology, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Lin-Lin Wang
- Institute for Frontier Medical Technology, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Ting-Ting Xiao
- Institute for Frontier Medical Technology, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Min Zhang
- Institute for Frontier Medical Technology, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
| | - Xue-Bo Yin
- Institute for Frontier Medical Technology, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
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2
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Zhang X, Liu X, Liu P, Li B, Xu Y. Ultralong afterglow of heavy-atom-free carbon dots with a phosphorescence lifetime of up to 3.7 s for encryption and fingerprinting description. Dalton Trans 2024; 53:4671-4679. [PMID: 38358363 DOI: 10.1039/d4dt00053f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Metal-free room-temperature phosphorescent (RTP) materials with changeable colors have attracted great attention in anti-counterfeiting information encryption. Most ultralong-lifetime RTP (URTP) luminophores are traditionally obtained through heavy atom effects via enhancing the spin-orbit coupling efficiency. Here, we report the self-assembly of URTP carbon dots (CDs) using diphenylaminourea as the precursor through a thermal-evaporation assisted covalent-binding approach in the presence of boric acid (BA). The BA-functionalized diphenylaminourea-derived CDs (denoted as D-CDs1.5/BA composites) show a rigid network structure with B-C linkages connected to the surface of the CDs, which can effectively suppress the free vibration of CDs to promote intersystem crossover, finally resulting in an excellent URTP afterglow performance. They feature a low singlet-triplet energy gap and reduced nonradiative attenuation properties. As a result, the D-CDs1.5/BA composites exhibit a bifunctional fluorescence/phosphorescence performance with a high phosphorescence quantum efficiency (12.67%) and an ultra-long green afterglow phosphorescence lifetime of up to 3.66 s. A high-level information encryption and fingerprinting description based on the URTP D-CDs1.5/BA composites were then investigated. This work contributes to the feasible design and preparation of novel URTP CD materials with both ultra-long afterglow and a high phosphorescence efficiency, making them promising candidates for advanced anti-counterfeiting applications.
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Affiliation(s)
- Xinlei Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
| | - Xia Liu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
| | - Peng Liu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
| | - Bohan Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
| | - Yan Xu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
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3
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Anusuyadevi K, Bose AC, Velmathi S. Single Step Solid State Synthesis of Carbon Nanoparticles for Instantaneous Detection of Fe (III) in Water Samples. J Fluoresc 2023:10.1007/s10895-023-03437-3. [PMID: 37726503 DOI: 10.1007/s10895-023-03437-3] [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: 07/25/2023] [Accepted: 09/08/2023] [Indexed: 09/21/2023]
Abstract
Though iron is one of the vital micronutrients in biological systems excess of which is associated with various illness. Consumption of contaminated water and crops because of its extensive industrial utility is one of the major sources for excess iron in living beings. Hence, we have designed a sensor based on carbon nanoparticles for the detection of Fe (III) and we have also attempted to estimate Fe (III) in spiked water samples. Carbon nanoparticles (CNP) with quantum yield of 40.2 % was synthesized by solid state synthesis from aromatic molecular precursors unlike conventional synthesis methodology. The particle size, stability and optical properties of CNP were investigated by microscopic and spectroscopic techniques. CNP manifested a naked color change from colorless to yellow in presence of Fe (III) and 72 % of CNP's emission was quenched at 487 nm on excitation at 377 nm by Fe (III). The detection time was less than a second and limit of detection was calculated as 0.248 µM. The mechanistic aspect of detection was investigated and applicability of CNP was examined in spiked water samples.
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Affiliation(s)
- Kathiresan Anusuyadevi
- Organic and Polymer Synthesis Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620 015, India
| | - Arumugam Chandra Bose
- Nanomaterials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli, 620 015, India
| | - Sivan Velmathi
- Organic and Polymer Synthesis Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620 015, India.
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4
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Du F, Yang LP, Wang LL. Synthetic strategies, properties and sensing application of multicolor carbon dots: recent advances and future challenges. J Mater Chem B 2023; 11:8117-8135. [PMID: 37555267 DOI: 10.1039/d3tb01329d] [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: 08/10/2023]
Abstract
Recently, carbon dots (CDs) as newly developed carbon-based nanomaterials due to advantages such as excellent photostability and easy surface functionalization have generated wide application prospects in fields such as biological imaging and chemical sensing. The multicolor emission carbon dots (M-CDs) were acquired through the selection of different carbon source precursors, change of synthesis conditions and synthesis environment. Therefore, the aim of this review is to summarize the latest research progress in polychromatic CDs from the perspectives of synthesis strategies, luminescent mechanisms, luminescent properties and applications. This review focuses on how to prepare MCDs by changing raw materials and synthesis conditions such as reaction temperature, synthesis time, synthesis pH, and synthesis solvent. This review also presents the optical properties of MCDs, concentration effects, solvent effects, pH effects, elemental doping, and surface passivation on them, as well as their creative applications in the field of sensing applications. It is anticipated that this review will serve as a guide for the development of multifunctional M-CDs and inspire future research on controllable design and preparation of M-CDs.
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Affiliation(s)
- Fangfang Du
- Postdoctoral Research Station of Basic Medicine, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Liu-Pan Yang
- Postdoctoral Research Station of Basic Medicine, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Li-Li Wang
- Postdoctoral Research Station of Basic Medicine, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
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5
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Bei Y, Arkin K, Zheng Y, Ma X, Zhao J, Jin H, Shang Q. Construction of a ratiometric fluorescent probe for visual detection of urea in human urine based on carbon dots prepared from Toona sinensis leaves and 5-carboxyfluorescein. Anal Chim Acta 2023; 1240:340733. [PMID: 36641152 DOI: 10.1016/j.aca.2022.340733] [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: 11/04/2022] [Revised: 12/17/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
In this work, pH-sensitive blue fluorescent carbon dots (CDs) with high fluorescence quantum yield (17.24%) were synthesized by hydrothermal method using Toona sinensis leaves and ethylenediamine (EDA) as raw materials. The CDs can detect urea with a limit of detection (LOD) of 6.700 mmol L-1. For more sensitive detection of urea, we constructed a ratiometric fluorescent probe (CDs@5-FAM) using CDs and 5-carboxyfluorescein (5-FAM). The CDs@5-FAM probe can rapidly and sensitively detect urea according to the changes of I514/I405, with LOD as low as 0.014 mmol L-1. Furthermore, with the help of a smartphone and RGB analysis software, urea's visual intelligent detection was realized using a CDs@5-FAM probe. The method proposed in this paper is consistent with the standard method, which indicates that the pH-sensitive ratiometric fluorescent probe CDs@5-FAM is accurate and reliable for practical application. It provides a new way for rapid and visual detection of urea.
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Affiliation(s)
- Yuyang Bei
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, PR China
| | - Kamile Arkin
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, PR China
| | - Yuxin Zheng
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, PR China
| | - Xuesong Ma
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, PR China
| | - Jie Zhao
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, PR China
| | - Huimin Jin
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, PR China
| | - Qingkun Shang
- Faculty of Chemistry, Northeast Normal University, 130024, Changchun, PR China.
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6
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Li J, Ma X, Ma M. Preparation and performance study of dye-based carbon quantum dots. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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7
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Guo X, Jia H, Zhang H, Xu J, Zhao X. Concentration-dependent and pH response carbon dots and application in latent fingerprints recognition. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130426] [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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8
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Li J, Gong X. The Emerging Development of Multicolor Carbon Dots. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2205099. [PMID: 36328736 DOI: 10.1002/smll.202205099] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/13/2022] [Indexed: 06/16/2023]
Abstract
As a relatively new type of fluorescent carbon-based nanomaterials, multicolor carbon dots (MCDs) have attracted much attention because of their excellent biocompatibility, tunable photoluminescence (PL), high quantum yield, and unique electronic and physicochemical properties. The multicolor emission characteristics of carbon dots (CDs) obviously depend on the carbon source precursor, reaction conditions, and reaction environment, which directly or indirectly determines the multicolor emission characteristics of CDs. Therefore, this review is the first systematic classification and summary of multiple regulation methods of synthetic MCDs and reviews the recent research progress in the synthesis of MCDs from a variety of precursor materials such as aromatic molecules, small organic molecules, and natural biomass, focusing on how different regulation methods produce corresponding MCDs. This review also introduces the innovative applications of MCDs in the fields of biological imaging, light-emitting diodes (LEDs), sensing, and anti-counterfeiting due to their excellent PL properties. It is hoped that by selecting appropriate adjustment methods, this review can inspire and guide the future research on the design of tailored MCDs, and provide corresponding help for the development of multifunctional MCDs.
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Affiliation(s)
- Jiurong Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
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9
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Vedernikova AA, Miruschenko MD, Arefina IA, Babaev AA, Stepanidenko EA, Cherevkov SA, Spiridonov IG, Danilov DV, Koroleva AV, Zhizhin EV, Ushakova EV. Dual-Purpose Sensing Nanoprobe Based on Carbon Dots from o-Phenylenediamine: pH and Solvent Polarity Measurement. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193314. [PMID: 36234443 PMCID: PMC9565920 DOI: 10.3390/nano12193314] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/17/2022] [Accepted: 09/20/2022] [Indexed: 05/14/2023]
Abstract
Today, the development of nanomaterials with sensing properties attracts much scientific interest because of the demand for low-cost nontoxic colloidal nanoprobes with high sensitivity and selectivity for various biomedical and environment-related applications. Carbon dots (CDs) are promising candidates for these applications as they demonstrate unique optical properties with intense emissions, biocompatibility, and ease of fabrication. Herein, we developed synthesis protocols to obtain CDs based on o-phenylenediamine with a variety of optical responses depending on additional precursors and changes in the reaction media. The obtained CDs are N-doped (N,S-doped in case of thiourea addition) less than 10 nm spherical particles with emissions observed in the 300−600 nm spectral region depending on their chemical composition. These CDs may act simultaneously as absorptive/fluorescent sensing probes for solvent polarity with ∆S/∆ENT up to 85, for ∆ENT from 0.099 to 1.0 and for pH values in the range of 3.0−8.0, thus opening an opportunity to check the pH in non-pure water or a mixture of solvents. Moreover, CDs preserve their optical properties when embedded in cellulose strips that can be used as sensing probes for fast and easy pH checks. We believe that the resulting dual-purpose sensing nano probes based on CDs will have high demand in various sensing applications.
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Affiliation(s)
- Anna A. Vedernikova
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Mikhail D. Miruschenko
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Irina A. Arefina
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Anton A. Babaev
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Evgeniia A. Stepanidenko
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Sergei A. Cherevkov
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Igor G. Spiridonov
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Denis V. Danilov
- Research Park, Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | | | - Evgeniy V. Zhizhin
- Research Park, Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Elena V. Ushakova
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
- Correspondence:
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10
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pH and solvent induced discoloration behavior of multicolor fluorescent carbon dots. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129261] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Zhao Y, Zhu X, Liu L, Duan Z, Liu Y, Zhang W, Cui J, Rong Y, Dong C. One-Step Synthesis of Nitrogen/Fluorine Co-Doped Carbon Dots for Use in Ferric Ions and Ascorbic Acid Detection. NANOMATERIALS 2022; 12:nano12142377. [PMID: 35889602 PMCID: PMC9323265 DOI: 10.3390/nano12142377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 02/04/2023]
Abstract
Carbon dots (CDs) have caught enormous attention owing to their distinctive properties, such as their high water solubility, tunable optical properties, and easy surface modification, which can be generally used for the detection of heavy metals and organic pollutants. Herein, nitrogen and fluorine co-doped carbon dots (NFCDs) were designed via a rapid, low-cost, and one-step microwave-assisted technique using DL-malic acid and levofloxacin. The NFCDs emitted intense green fluorescence under UV lighting, and the optical emission peak at 490 nm was observed upon a 280 nm excitation, with a high quantum yield of 21.03%. Interestingly, the spectral measurements illustrated excitation-independent and concentration-independent single-color fluorescence owing to the presence of nitrogen and fluorine elements in the surface functional groups. Additionally, the NFCDs were applied for the selective detection of Fe3+ and ascorbic acid based on the “turn-off” mode. The detection limits were determined as 1.03 and 4.22 µM, respectively. The quenching mechanisms were explored using the static quenching mechanism and the inner filter effect. Therefore, a NFCDs fluorescent probe with single color emission was successfully developed for the convenient and rapid detection of Fe3+ and ascorbic acid in environments.
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Affiliation(s)
- Yan Zhao
- School of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China; (X.Z.); (L.L.); (Z.D.); (Y.L.); (W.Z.); (J.C.)
- Correspondence: (Y.Z.); (C.D.)
| | - Xiaoxuan Zhu
- School of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China; (X.Z.); (L.L.); (Z.D.); (Y.L.); (W.Z.); (J.C.)
| | - Lu Liu
- School of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China; (X.Z.); (L.L.); (Z.D.); (Y.L.); (W.Z.); (J.C.)
| | - Zhiqing Duan
- School of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China; (X.Z.); (L.L.); (Z.D.); (Y.L.); (W.Z.); (J.C.)
| | - Yanping Liu
- School of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China; (X.Z.); (L.L.); (Z.D.); (Y.L.); (W.Z.); (J.C.)
- Hebei Key Laboratory of Active Components and Functions in Natural Product, Qinhuangdao 066004, China
| | - Weiyuan Zhang
- School of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China; (X.Z.); (L.L.); (Z.D.); (Y.L.); (W.Z.); (J.C.)
| | - Jingjing Cui
- School of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China; (X.Z.); (L.L.); (Z.D.); (Y.L.); (W.Z.); (J.C.)
| | - Yafang Rong
- Shandong Zhengyuan Geophysical Information Technology Co., Ltd., Jinan 250000, China;
| | - Chen Dong
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Correspondence: (Y.Z.); (C.D.)
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12
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Tang H, Tang Y, Xiao M, Zhu H, Guo M. Study on Microwave Synthesis Mechanism of Carbon Dots Based on NMR Characterization. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129564] [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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13
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Liu Y, Kang X, Xu Y, Li Y, Wang S, Wang C, Hu W, Wang R, Liu J. Modulating the Carbonization Degree of Carbon Dots for Multicolor Afterglow Emission. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22363-22371. [PMID: 35507422 DOI: 10.1021/acsami.2c01804] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Organic afterglow materials based on carbon dots (CDs) have aroused extensive attention for their potential applications in sensing, photoelectric devices, and anticounterfeiting. Effective methods to control the CD structure and modulate the energy levels are critical but still challenging. Here, we demonstrate a method to modulate the afterglow emission of CDs@SiO2 composites by controlling the carbonization degree of CDs with variable calcining temperatures. The CDs@SiO2-Raw prepared with a hydrothermal bottom-up synthesis method shows a more polymerized structure of CDs with low carbonization degree, which emits long-lived thermally activated delayed fluorescence (TADF) with the lifetime of 252 ms. After calcination at 550 °C, CDs@SiO2-550 exhibits a larger conjugated π-domain structure with higher carbonization degree, thus inducing room-temperature phosphorescence (RTP) emission with a lifetime of 451 ms. The transformation of the carbonization degree of CD structures leads to changes in energy levels and ΔEST, which affect their afterglow luminescence behaviors. This work proposes a new concept to modulate the afterglow emission of CDs@SiO2 composites and forecasts potential applications of CD-based afterglow materials.
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Affiliation(s)
- Yancong Liu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Xin Kang
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Yiqian Xu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Yaorui Li
- College of Nuclear Science and Technology, Harbin Engineering University, 145 Nantong Street, Harbin 150001, China
| | - Shuang Wang
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Chunyan Wang
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Weiquan Hu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Ruihong Wang
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Jiancong Liu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
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14
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Yang Y, Wang C, Shu Q, Xu N, Qi S, Zhuo S, Zhu C, Du J. Facile one-step fabrication of Cu-doped carbon dots as a dual-selective biosensor for detection of pyrophosphate ions and measurement of pH. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 268:120681. [PMID: 34894564 DOI: 10.1016/j.saa.2021.120681] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/19/2021] [Accepted: 11/26/2021] [Indexed: 06/14/2023]
Abstract
High-performance determination of pyrophosphate ions (PPi) and pH is an important goal in biological systems. In this work, Cu-doped carbon dots (Cu-CDs) were synthesized rapidly and simply via a one-pot hydrothermal method. The as-obtained Cu-CDs, with an average size of 2.55 nm, exhibit an excitation-independent fluorescence emission and possess desirable functional groups of carboxyl and amine, which can be served as fluorescence nanoprobes for detection of PPi based on surface passivation. Under the optimal condition, the linear range for detection of PPi was 0.05-20 µM, and the corresponding limit of detection (LOD) was 0.013 µM, indicative of a promising assay for the PPi. Moreover, the fluorescent intensity of the Cu-CDs is linear against pH value from 6 to 8.7 in buffer solution, suggesting the feasibility as a pH sensor. The synthesized Cu-CDs coated fluorescent paper indeed can monitor pH in urine with satisfaction by naked eyes through ultraviolet irradiation. The successful detection of PPi and the visual detection of pH value suggest a highly promising application of Cu-CDs in the field of biosensing.
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Affiliation(s)
- Ying Yang
- Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Chaofeng Wang
- Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Qin Shu
- Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Na Xu
- Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Shuangqing Qi
- Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Shujuan Zhuo
- Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Changqing Zhu
- Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Jinyan Du
- Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China.
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15
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Tang H, Tang Y, Zhu H, Xiao M, Guo M. Nitrogen-doped carbon dots based on arginine and maleic acid for fabrication of PVA composite films and iron fluorescence probes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Liu Z, Wang L, Wang B, Chen Y, Tian F, Xue Y, Li Y, Zhu W, Yang W. Preparation, characterization and cell labelling of strong pH-controlled bicolor fluorescence carbonized polymer dots. RSC Adv 2022; 12:1258-1264. [PMID: 35425208 PMCID: PMC8978924 DOI: 10.1039/d1ra08092j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/19/2021] [Indexed: 01/23/2023] Open
Abstract
As a class of important carbon nanomaterial, carbonized polymer dots (CPDs), also called carbon dots (CDs), have aroused wide interest owing to their unique water solubility, fluorescence properties, and rich surface functional groups. However, the directional tuning of the fluorescence properties of CPDs remains incomplete because of the influence of many factors like diameter, solvent and surface groups. Particularly, most carbonized polymer dots are synthesized in a neutral pH environment. Herein, by modulating the pH (strongly acidic or alkaline) of dextrin water solution, bicolor fluorescence emission (blue and yellow) CPDs were prepared by a hydrothermal reaction. Through systematic characterization, it was found that the different fluorescence properties are regulated by the diameters and surface groups of the carbon cores. Simultaneously, the pH value affected the nucleation process. Based on the excellent fluorescence properties, cell fluorescence imaging and cytotoxicity were tested. The bicolor fluorescence CPDs obtained by tuning the pH provide an important theoretical basis for the design of broadband CPDs. Multicolor fluorescence N-doped CPDs from dextrin water solution in strong acidic and alkaline environments were synthesized and characterized, which revealed that pH value plays a vital role in the process of CPD growth.![]()
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Affiliation(s)
- Zengchen Liu
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 P. R. China
| | - Like Wang
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 P. R. China
| | - Baodui Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University Lanzhou 730000 Gansu P. R. China
| | - Yahong Chen
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 P. R. China
| | - Fengshou Tian
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 P. R. China
| | - Yingying Xue
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 P. R. China
| | - Yanxia Li
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 P. R. China
| | - Wenping Zhu
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 P. R. China
| | - Weijie Yang
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 P. R. China
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17
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Hong Y, Chen X, Zhang Y, Zhu Y, Sun J, Swihart MT, Tan K, Dong L. One-pot hydrothermal synthesis of high quantum yield orange-emitting carbon quantum dots for sensitive detection of perfluorinated compounds. NEW J CHEM 2022. [DOI: 10.1039/d2nj02907c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A carbon quantum dot with orange high quantum yield is used to detect PFOS/PFOA in cells.
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Affiliation(s)
- Yushuang Hong
- Key Laboratory of Luminescence analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xianping Chen
- Key Laboratory of Luminescence analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ya Zhang
- Key Laboratory of Luminescence analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yulin Zhu
- Key Laboratory of Luminescence analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jingfang Sun
- School of the Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Mark T. Swihart
- Department of Chemical and Biological Engineering, The University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, USA
| | - Kejun Tan
- Key Laboratory of Luminescence analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Lin Dong
- School of the Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
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Zhu M, Guo L, He Z, Marzouki R, Zhang R, Berdimurodov E. Insights into the newly synthesized N-doped carbon dots for Q235 steel corrosion retardation in acidizing media: A detailed multidimensional study. J Colloid Interface Sci 2021; 608:2039-2049. [PMID: 34749151 DOI: 10.1016/j.jcis.2021.10.160] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 12/11/2022]
Abstract
N-doped carbon quantum dots (NCQDs) were synthesized by a hydrothermal method using folic acid and o-phenylenediamine as precursors. The inhibition behaviour of the NCQDs on Q235 steel in 1 M HCl solution was appraised through electrochemical impedance spectroscopy (EIS), potentiodynamic polarization curves (PDP), and surface analysis. The results demonstrated that the synthesized NCQDs had an effective anticorrosion effect on Q235 steel, and the corrosion inhibition efficiency of 150 mg/L NCQDs reached 95.4%. Additionally, the analysis of the PDP corrosion potential changes indicated that the NCQDs acted as a mixed corrosion inhibitor. Moreover, the NCQDs adsorbed onto the surface of steel by coordinating its electron-rich atoms with the iron metal to form a protective film, which slowed the dissolution reaction of the anodic metal to achieve corrosion inhibition. The adsorption mechanism of the NCQDs was consistent with Langmuir adsorption, including physical and chemical adsorption. Therefore, this work can inspire and facilitate, to a certain extent, the future application of doped carbon quantum dots as efficient corrosion inhibitors in pickling solutions.
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Affiliation(s)
- Mengyue Zhu
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China
| | - Lei Guo
- School of Material and Chemical Engineering, Tongren University, Tongren 554300, China; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China; Key Laboratory of Material Corrosion and Protection of Sichuan Province, Sichuan University of Science and Engineering, Zigong 643000, China.
| | - Zhongyi He
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China.
| | - Riadh Marzouki
- Chemistry Department, College of Science, King Khalid University, Abha 61413, Saudi Arabia; Chemistry Department, Faculty of Sciences, University of Sfax, 1171 Sfax 3000, Tunisia
| | - Renhui Zhang
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China
| | - Elyor Berdimurodov
- Faculty of Natural Sciences, Karshi State University, Karshi 180100, Uzbekistan
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