1
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An Y, Wang Z, Wu FG. Fluorescent carbon dots for discriminating cell types: a review. Anal Bioanal Chem 2024; 416:3945-3962. [PMID: 38886239 DOI: 10.1007/s00216-024-05328-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/26/2024] [Accepted: 05/06/2024] [Indexed: 06/20/2024]
Abstract
Carbon dots (CDs) are quasi-spherical carbon nanoparticles with excellent photoluminescence, good biocompatibility, favorable photostability, and easily modifiable surfaces. CDs, serving as fluorescent probes, have emerged as an ideal tool for cellular differentiation owing to their outstanding luminescence performance and tunable surface properties. In this review, we summarize the recent research progress with CDs in the differentiation of cancer/normal cells, Gram-positive/Gram-negative bacteria, and live/dead cells, as well as the cellular differences used for differentiation. Additionally, we summarize the preparation methods, raw materials, and properties of the CDs used for cell discrimination. The differentiation mechanisms and the advantages or limitations of the differentiation methods are also introduced. Finally, we propose several research challenges in this field and future research directions that require extensive investigation. It is hoped that this review will help researchers in the design of new CDs as ideal fluorescent probes for realizing diverse cell differentiation applications.
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Affiliation(s)
- Yaolong An
- State Key Laboratory of Digital Medical Engineering, Key Laboratory for Biomaterials and Devices of Jiangsu Province, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 211189, China
| | - Zihao Wang
- State Key Laboratory of Digital Medical Engineering, Key Laboratory for Biomaterials and Devices of Jiangsu Province, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 211189, China
| | - Fu-Gen Wu
- State Key Laboratory of Digital Medical Engineering, Key Laboratory for Biomaterials and Devices of Jiangsu Province, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 211189, China.
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2
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Wang H, Yang S, Chen L, Li Y, He P, Wang G, Dong H, Ma P, Ding G. Tumor diagnosis using carbon-based quantum dots: Detection based on the hallmarks of cancer. Bioact Mater 2024; 33:174-222. [PMID: 38034499 PMCID: PMC10684566 DOI: 10.1016/j.bioactmat.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/15/2023] [Accepted: 10/05/2023] [Indexed: 12/02/2023] Open
Abstract
Carbon-based quantum dots (CQDs) have been shown to have promising application value in tumor diagnosis. Their use, however, is severely hindered by the complicated nature of the nanostructures in the CQDs. Furthermore, it seems impossible to formulate the mechanisms involved using the inadequate theoretical frameworks that are currently available for CQDs. In this review, we re-consider the structure-property relationships of CQDs and summarize the current state of development of CQDs-based tumor diagnosis based on biological theories that are fully developed. The advantages and deficiencies of recent research on CQDs-based tumor diagnosis are thus explained in terms of the manifestation of nine essential changes in cell physiology. This review makes significant progress in addressing related problems encountered with other nanomaterials.
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Affiliation(s)
- Hang Wang
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Siwei Yang
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Liangfeng Chen
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Yongqiang Li
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Peng He
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China
| | - Hui Dong
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Peixiang Ma
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Guqiao Ding
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
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3
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Chu X, Duan M, Hou H, Zhang Y, Liu P, Chen H, Liu Y, Li SL. Recent strategies of carbon dot-based nanodrugs for enhanced emerging antitumor modalities. J Mater Chem B 2023; 11:9128-9154. [PMID: 37698045 DOI: 10.1039/d3tb00718a] [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: 09/13/2023]
Abstract
Nanomaterial-based cancer therapy has recently emerged as a new therapeutic modality with the advantages of minimal invasiveness and negligible normal tissue toxicity over traditional cancer treatments. However, the complex microenvironment and self-protective mechanisms of tumors have suppressed the therapeutic effect of emerging antitumor modalities, which seriously hindered the transformation of these modalities to clinical settings. Due to the excellent biocompatibility, unique physicochemical properties and easy surface modification, carbon dots, as promising nanomaterials in the biomedical field, can effectively improve the therapeutic effect of emerging antitumor modalities as multifunctional nanoplatforms. In this review, the mechanism and limitations of emerging therapeutic modalities are described. Further, the recent advances related to carbon dot-based nanoplatforms in overcoming the therapeutic barriers of various emerging therapies are systematically summarized. Finally, the prospects and potential obstacles for the clinical translation of carbon dot-based nanoplatforms in tumor therapy are also discussed. This review is expected to provide a reference for nanomaterial design and its development for the efficacy enhancement of emerging therapeutic modalities.
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Affiliation(s)
- Xu Chu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering & School of Chemistry, Tiangong University, Tianjin 300387, P. R. China.
| | - Mengdie Duan
- State Key Laboratory of Separation Membrane and Membrane Process, School of Chemical Engineering and technology & School of Electronic and Information Engineering & School of Life Science, Tiangong University, Tianjin 300378, P. R. China
| | - Huaying Hou
- State Key Laboratory of Separation Membrane and Membrane Process, School of Chemical Engineering and technology & School of Electronic and Information Engineering & School of Life Science, Tiangong University, Tianjin 300378, P. R. China
| | - Yujuan Zhang
- State Key Laboratory of Separation Membrane and Membrane Process, School of Chemical Engineering and technology & School of Electronic and Information Engineering & School of Life Science, Tiangong University, Tianjin 300378, P. R. China
| | - Pai Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering & School of Chemistry, Tiangong University, Tianjin 300387, P. R. China.
| | - Hongli Chen
- State Key Laboratory of Separation Membrane and Membrane Process, School of Chemical Engineering and technology & School of Electronic and Information Engineering & School of Life Science, Tiangong University, Tianjin 300378, P. R. China
| | - Yi Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering & School of Chemistry, Tiangong University, Tianjin 300387, P. R. China.
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning 437100, P. R. China
| | - Shu-Lan Li
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering & School of Chemistry, Tiangong University, Tianjin 300387, P. R. China.
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4
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Shaban SM, Byeok Jo S, Hafez E, Ho Cho J, Kim DH. A comprehensive overview on alkaline phosphatase targeting and reporting assays. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214567] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Le‐Vinh B, Akkuş‐Dağdeviren ZB, Le NN, Nazir I, Bernkop‐Schnürch A. Alkaline Phosphatase: A Reliable Endogenous Partner for Drug Delivery and Diagnostics. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202100219] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Bao Le‐Vinh
- Department of Pharmaceutical Technology Institute of Pharmacy University of Innsbruck Innrain 80/82 Innsbruck 6020 Austria
- Department of Industrial Pharmacy Faculty of Pharmacy University of Medicine and Pharmacy at Ho Chi Minh City Ho Chi Minh City 700000 Viet Nam
| | - Zeynep Burcu Akkuş‐Dağdeviren
- Department of Pharmaceutical Technology Institute of Pharmacy University of Innsbruck Innrain 80/82 Innsbruck 6020 Austria
| | - Nguyet‐Minh Nguyen Le
- Department of Pharmaceutical Technology Institute of Pharmacy University of Innsbruck Innrain 80/82 Innsbruck 6020 Austria
- Department of Industrial Pharmacy Faculty of Pharmacy University of Medicine and Pharmacy at Ho Chi Minh City Ho Chi Minh City 700000 Viet Nam
| | - Imran Nazir
- Department of Pharmacy COMSATS University Islamabad Abbottabad Campus Abbottabad 22060 Pakistan
| | - Andreas Bernkop‐Schnürch
- Department of Pharmaceutical Technology Institute of Pharmacy University of Innsbruck Innrain 80/82 Innsbruck 6020 Austria
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Shi L, Dong X, Zhang G, Zhang Y, Zhang C, Dong C, Shuang S. Lysosome targeting, Cr(vi) and l-AA sensing, and cell imaging based on N-doped blue-fluorescence carbon dots. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:3561-3568. [PMID: 34313265 DOI: 10.1039/d1ay00977j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
N-doped blue-fluorescence carbon dots (N-CDs) were fabricated via a one-pot hydrothermal method using folic acid and p-phenylenediamine. The obtained N-CDs exhibited strong fluorescence (FL) with a considerable quantum yield (QY) of 21.8% and exceptional optical stability under different conditions. Upon introducing Cr(vi), blue FL of N-CDs was distinctly quenched. On subsequent addition of l-AA, the FL of N-CDs could be partially recovered. The fluorescence changes of N-CDs have been utilized to detect Cr(vi) and l-AA in aqueous solutions with linear ranges of 0.10-150 μM and 0.75-2.25 mM, respectively, as well as limit of detection values of 9.4 nM and 25 μM, respectively. Furthermore, as-obtained N-CDs can be extended to monitor the fluctuation of intracellular Cr(vi) and l-AA. More intriguingly, N-CDs can target lysosomes with a satisfactory Pearson correction coefficient of 0.87, which indicates a promising application prospect in the biomedical field.
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Affiliation(s)
- Lihong Shi
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China.
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8
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Lee EY, Kim Y, Koo B, Noh GS, Lee H, Shin Y. A novel nucleic acid amplification system based on nano-gap embedded active disk resonators. SENSORS AND ACTUATORS. B, CHEMICAL 2020; 320:128351. [PMID: 32501366 DOI: 10.1016/j.snb.2020.128391] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/15/2020] [Accepted: 05/21/2020] [Indexed: 05/28/2023]
Abstract
Recent advances in nucleic acid based testing using bio-optical sensor approaches have been introduced but most are based on hybridization between the optical sensor and the bio-molecule and not on an amplification mechanism. Direct nucleic acid amplification on an optical sensor has several technical limitations, such as the sensitivity of the temperature sensor, instrument complexity, and high background signal. We here describe a novel nucleic acid amplification method based on a whispering gallery mode active resonator and discuss its potential molecular diagnostic application. By implanting nanoclusters as active compounds, this active resonator operates without tapered fiber coupling and emits a strong photoluminescence signal with low background in the wavelength of low absorption in an aqueous environment that is typical of biosensors. Our method also offers an extremely low detection threshold down to a single copy within 10 min due to the strong light-matter interaction in a nano-gap structure. We envision that this active resonator provides a high refractive index contrast for tight mode confinement with simple alignment as well as the possibility of reducing the device size so that a point-of-care system with low-cost, high-sensitivity and simplicity.
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Affiliation(s)
- Eun Yeong Lee
- Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Yeseul Kim
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Bonhan Koo
- Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Geun Su Noh
- Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Hansuek Lee
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Yong Shin
- Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
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9
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Phuong PTM, Won HJ, Robby AI, Kim SG, Im GB, Bhang SH, Lee G, Park SY. NIR-vis-Induced pH-Sensitive TiO 2 Immobilized Carbon Dot for Controllable Membrane-Nuclei Targeting and Photothermal Therapy of Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37929-37942. [PMID: 32846494 DOI: 10.1021/acsami.0c11979] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study investigated a selective and sensitive theragnosis system for the specific targeting of the membrane and nuclei based on visible-light and pH-responsive TiO2-integrated cross-linked carbon dot (C-CD/TiO2) for tumor detection and controllable photothermal therapy. The cross-linking system was formed by boronate ester linkages between the TiO2-immobilized Dopa-decyl (D-CD) and zwitterionic-formed CD (Z-CD) for nuclear targeting, which showed fluorescence "off" at physiological pH. The fluorescence recovered to the "on" state in acidic cancer cells owing to cleavages of the boronate ester bonds, resulting in the disruption of the Förster resonance energy transfer that generated different CDs useful for tumor-selective biosensors and therapy. D-CD, which is hydrophobic, can penetrate the hydrophobic sites of the cell membrane; it caused a loss in the hydrophobicity of these sites after visible-light irradiation. This was achieved by the photocatalytic activity of the TiO2 modulating energy bandgap, whereas the Z-CD targeted the nucleus, as confirmed by merged confocal microscopy images. D-CD augmented by photothermal heat also exhibited selective anticancer activity in the acidic tumor condition but showed only minimal effects at a normal site at pH 7.4. After C-CD/TiO2 injection to an in vivo tumor model, C-CD/TiO2 efficiently ablated tumors under NIR light irradiation. The C-CD/TiO2 group showed up-regulation of the pro-apoptotic markers such as P53 and BAX in tumor. This material exhibited its potential as a theragnostic sensor with excellent biocompatibility, high sensitivity, selective imaging, and direct anticancer activity via photothermal therapy.
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Affiliation(s)
- Pham Thi My Phuong
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Hyun Jeong Won
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Akhmad Irhas Robby
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Seul Gi Kim
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Gwang-Bum Im
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Gibaek Lee
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Sung Young Park
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
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10
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Du J, Xu N, Fan J, Sun W, Peng X. Carbon Dots for In Vivo Bioimaging and Theranostics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1805087. [PMID: 30779301 DOI: 10.1002/smll.201805087] [Citation(s) in RCA: 221] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 01/20/2019] [Indexed: 05/21/2023]
Abstract
Carbon dots (CDs), a kind of carbon material discovered accidentally, exhibit unexpected advantages in fluorescence imaging/sensing such as photostability, biocompatibility, and low toxicity. For emerging theranostics, an interdiscipline created by integrating therapy and diagnostics, CDs are good candidates when they are combined with targeted chemo/gene/photodynamic/photothermal therapeutic moieties. Here, the development of CDs in nanomedicine is reviewed from their use as original imaging agents and/or drug carriers to multifunctional theranostic systems. Finally, the challenges and prospects of the next-generation of CD-based theranostics for clinical applications are also discussed.
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Affiliation(s)
- Jianjun Du
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
- Research Institute of Dalian University of Technology in Shenzhen, Gaoxin South fourth Road, Nanshan District, Shenzhen, 518057, China
| | - Ning Xu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Jiangli Fan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
- Research Institute of Dalian University of Technology in Shenzhen, Gaoxin South fourth Road, Nanshan District, Shenzhen, 518057, China
| | - Wen Sun
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
- Research Institute of Dalian University of Technology in Shenzhen, Gaoxin South fourth Road, Nanshan District, Shenzhen, 518057, China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
- Research Institute of Dalian University of Technology in Shenzhen, Gaoxin South fourth Road, Nanshan District, Shenzhen, 518057, China
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Boakye-Yiadom KO, Kesse S, Opoku-Damoah Y, Filli MS, Aquib M, Joelle MMB, Farooq MA, Mavlyanova R, Raza F, Bavi R, Wang B. Carbon dots: Applications in bioimaging and theranostics. Int J Pharm 2019; 564:308-317. [PMID: 31015004 DOI: 10.1016/j.ijpharm.2019.04.055] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 01/23/2023]
Abstract
Carbon dots are a carbonaceous nanomaterial that were discovered accidentally and are now drawing significant attention as a new quantum-sized fluorescent nanoparticle. Carbon dots are biocompatible, non-toxic, photostable, and easily functionalized with good photoluminescence and water solubility. Due to these unique properties, they are used broadly in live cell imaging, catalysis, electronics, biosensing, power, targeted drug delivery, and other biomedical applications. Here, we review the recent development of carbon dots in nanomedicine from their use in drug carriers to imaging agents to multifunctional theranostic systems. Finally, we discuss the challenges and views on next-generation carbon dot-based theranostics for clinical applications.
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Affiliation(s)
- Kofi Oti Boakye-Yiadom
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Samuel Kesse
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yaw Opoku-Damoah
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Australian Institute for Bioengineering & Nanotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Mensura Sied Filli
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Md Aquib
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Mily Maviah Bazezy Joelle
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Muhammad Asim Farooq
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Rukhshona Mavlyanova
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Faisal Raza
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Rohit Bavi
- State Key Laboratory of Natural Medicines, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Bo Wang
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
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12
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Shen D, Long Y, Wang J, Yu Y, Pi J, Yang L, Zheng H. Tuning the fluorescence performance of carbon dots with a reduction pathway. NANOSCALE 2019; 11:5998-6003. [PMID: 30882812 DOI: 10.1039/c8nr09587f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A reduction pathway was developed to tune the fluorescence quantum yield (QY) and emission wavelength of carbon dots (CDs). Reducing the original CDs (QY ca. 1.55%, maximum emission ca. 520 nm) with NaBH4 increased QY to 7.25% and blue-shifted the maximum emission to 450 nm. Treating the original CDs with LiAlH4 increased QY to ca. 7.44% and blue-shifted the maximum emission to 345 nm. The distinct fluorescence characteristics of the original CDs, NaBH4-treated CDs, and LiAlH4-treated CDs were conferred by their differing surface groups. Moreover, the original CDs, NaBH4-treated CDs, and LiAlH4-treated CDs responded differently to a specific oxidizer of hydroxyl groups. The increase in the fluorescence QY and blue-shift of the emission wavelength were explained. This study provides a foundation for the preparation and tuning of CDs with excellent fluorescence performance, as well as for the development CD-based fluorescent probes.
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Affiliation(s)
- Dongjun Shen
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
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