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Dutta SD, Hexiu J, Kim J, Sarkar S, Mondal J, An JM, Lee YK, Moniruzzaman M, Lim KT. Two-photon excitable membrane targeting polyphenolic carbon dots for long-term imaging and pH-responsive chemotherapeutic drug delivery for synergistic tumor therapy. Biomater Sci 2022; 10:1680-1696. [DOI: 10.1039/d1bm01832a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Long-term dynamic tracking of cells with theranostics properties remains challenging due to difficulty in preparing and delivering drugs by the probes. Herein, we developed a highly fluorescent one- and two-photon...
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52
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Meng Q, Wang Y, Li C, Hu X. Bismuth- and gadolinium-codoped carbon quantum dots with red/green dual emission for fluorescence/CT/T1-MRI mode imaging. NEW J CHEM 2022. [DOI: 10.1039/d2nj03420d] [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
The synthesized novel Bi,Gd-CQDs exhibit red and green fluorescence, enabling CT and MR imaging, and providing an approach for multifunctional biological imaging.
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Affiliation(s)
- Qin Meng
- College of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530003, People's Republic of China
| | - Yun Wang
- School of Mechanical Engineering, Guangdong Songshan Polytechnic, Shaoguan, Guangdong, 512126, People's Republic of China
| | - Chunxing Li
- College of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530003, People's Republic of China
| | - Xiaoxi Hu
- College of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530003, People's Republic of China
- School of Mechanical Engineering, Guangdong Songshan Polytechnic, Shaoguan, Guangdong, 512126, People's Republic of China
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53
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Li Z, Zhang J, Sun Q, Shi W, Tao T, Fu Y. Moxifloxacin detection based on fluorescence resonance energy transfer from carbon quantum dots to moxifloxacin using a ratiometric fluorescence probe. NEW J CHEM 2022. [DOI: 10.1039/d1nj05961k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
With an increase in the MOX concentration, the fluorescence intensity of CQDs decreases, whereas the fluorescence intensity of MOX increases gradually.
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Affiliation(s)
- Zhiwen Li
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Wuhu, Anhui 241000, P. R. China
| | - Jiyue Zhang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Wuhu, Anhui 241000, P. R. China
| | - Qiyao Sun
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Wuhu, Anhui 241000, P. R. China
| | - Wenwen Shi
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Wuhu, Anhui 241000, P. R. China
| | - Tingxian Tao
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Wuhu, Anhui 241000, P. R. China
| | - Yingqiang Fu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Wuhu, Anhui 241000, P. R. China
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Cai R, Xiao L, Liu M, Du F, Wang Z. Recent Advances in Functional Carbon Quantum Dots for Antitumour. Int J Nanomedicine 2021; 16:7195-7229. [PMID: 34720582 PMCID: PMC8550800 DOI: 10.2147/ijn.s334012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/23/2021] [Indexed: 12/20/2022] Open
Abstract
Carbon quantum dots (CQDs) are an emerging class of quasi-zero-dimensional photoluminescent nanomaterials with particle sizes less than 10 nm. Owing to their favourable water dispersion, strong chemical inertia, stable optical performance, and good biocompatibility, CQDs have become prominent in biomedical fields. CQDs can be fabricated by “top-down” and “bottom-up” methods, both of which involve oxidation, carbonization, pyrolysis and polymerization. The functions of CQDs include biological imaging, biosensing, drug delivery, gene carrying, antimicrobial performance, photothermal ablation and so on, which enable them to be utilized in antitumour applications. The purpose of this review is to summarize the research progress of CQDs in antitumour applications from preparation and characterization to application prospects. Furthermore, the challenges and opportunities of CQDs are discussed along with future perspectives for precise individual therapy of tumours.
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Affiliation(s)
- Rong Cai
- Central Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu, 215600, People's Republic of China
| | - Long Xiao
- Central Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu, 215600, People's Republic of China
| | - Meixiu Liu
- Central Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu, 215600, People's Republic of China
| | - Fengyi Du
- School of Medicine, Zhenjiang, Jiangsu, 212013, People's Republic of China
| | - Zhirong Wang
- Central Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu, 215600, People's Republic of China
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Recent advances in active targeting of nanomaterials for anticancer drug delivery. Adv Colloid Interface Sci 2021; 296:102509. [PMID: 34455211 DOI: 10.1016/j.cis.2021.102509] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 07/24/2021] [Accepted: 08/15/2021] [Indexed: 12/15/2022]
Abstract
One of the challenges in cancer chemotherapy is the low target to non-target ratio of therapeutic agents which incur severe adverse effect on the healthy tissues. In this regard, nanomaterials have tremendous potential for impacting cancer therapy by altering the toxicity profile of the drug. Some of the striking advantages provided by the nanocarriers mediated targeted drug delivery are relatively high build-up of drug concentration at the tumor site, improved drug content in the formulation and enhanced colloidal stability. Further, nanocarriers with tumor-specific moieties can be targeted to the cancer cell through cell surface receptors, tumor antigens and tumor vasculatures with high affinity and accuracy. Moreover, it overcomes the bottleneck of aimless drug biodistribution, undesired toxicity and heavy dosage of administration. This review discusses the recent developments in active targeting of nanomaterials for anticancer drug delivery through cancer cell surface targeting, organelle specific targeting and tumor microenvironment targeting strategies. Special emphasis has been given towards cancer cell surface and organelle specific targeting as delivery of anticancer drugs through these routes have made paradigm change in cancer management. Further, the current challenges and future prospects of nanocarriers mediated active drug targeting are also demonstrated.
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56
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Fan J, Li Q, Chen L, Du J, Xue W, Yu S, Su X, Yang Y. Research Progress in the Synthesis of Targeting Organelle Carbon Dots and Their Applications in Cancer Diagnosis and Treatment. J Biomed Nanotechnol 2021; 17:1891-1916. [PMID: 34706792 DOI: 10.1166/jbn.2021.3167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
With increasing knowledge about diseases at the histological, cytological to sub-organelle level, targeting organelle therapy has gradually been envisioned as an approach to overcome the shortcomings of poor specificity and multiple toxic side effects on tissues and cell-level treatments using the currently available therapy. Organelle carbon dots (CDs) are a class of functionalized CDs that can target organelles. CDs can be prepared by a "synchronous in situ synthesis method" and "asynchronous modification method." The superior optical properties and good biocompatibility of CDs can be preserved, and they can be used as targeting particles to carry drugs into cells while reducing leakage during transport. Given the excellent organelle fluorescence imaging properties, targeting organelle CDs can be used to monitor the physiological metabolism of organelles and progression of human diseases, which will provide advanced understanding and accurate diagnosis and targeted treatment of cancers. This study reviews the methods used for preparation of targeting organelle CDs, mechanisms of accurate diagnosis and targeted treatment of cancer, as well as their application in the area of cancer diagnosis and treatment research. Finally, the current difficulties and prospects for targeting organelle CDs are prospected.
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Affiliation(s)
- Jiangbo Fan
- Shanxi Medical University, Taiyuan 030001, China
| | - Qiang Li
- Interventional Treatment Department, Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Lin Chen
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jinglei Du
- Interventional Treatment Department, Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Wenqiang Xue
- Shanxi Medical University, Taiyuan 030001, China
| | - Shiping Yu
- Shanxi Medical University, Taiyuan 030001, China
| | - Xiuqin Su
- Shanxi Medical University, Taiyuan 030001, China
| | - Yongzhen Yang
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
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57
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Mansuriya BD, Altintas Z. Carbon Dots: Classification, Properties, Synthesis, Characterization, and Applications in Health Care-An Updated Review (2018-2021). NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2525. [PMID: 34684966 PMCID: PMC8541690 DOI: 10.3390/nano11102525] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022]
Abstract
Carbon dots (CDs) are usually smaller than 10 nm in size, and are meticulously formulated and recently introduced nanomaterials, among the other types of carbon-based nanomaterials. They have gained significant attention and an incredible interest in the field of nanotechnology and biomedical science, which is merely due to their considerable and exclusive attributes; including their enhanced electron transferability, photobleaching and photo-blinking effects, high photoluminescent quantum yield, fluorescence property, resistance to photo-decomposition, increased electrocatalytic activity, good aqueous solubility, excellent biocompatibility, long-term chemical stability, cost-effectiveness, negligible toxicity, and acquaintance of large effective surface area-to-volume ratio. CDs can be readily functionalized owing to the abundant functional groups on their surfaces, and they also exhibit remarkable sensing features such as specific, selective, and multiplex detectability. In addition, the physico-chemical characteristics of CDs can be easily tunable based on their intended usage or application. In this comprehensive review article, we mainly discuss the classification of CDs, their ideal properties, their general synthesis approaches, and primary characterization techniques. More importantly, we update the readers about the recent trends of CDs in health care applications (viz., their substantial and prominent role in the area of electrochemical and optical biosensing, bioimaging, drug/gene delivery, as well as in photodynamic/photothermal therapy).
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Affiliation(s)
| | - Zeynep Altintas
- Institute of Chemistry, Technical University of Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany;
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58
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Gour A, Ramteke S, Jain NK. Pharmaceutical Applications of Quantum Dots. AAPS PharmSciTech 2021; 22:233. [PMID: 34476619 DOI: 10.1208/s12249-021-02103-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 07/20/2021] [Indexed: 12/12/2022] Open
Abstract
Nanotechnology has been utilized in developing novel drug formulations with minimal adverse effects. Nanoparticles in a lower size range with great surface area, increased potency, and easy permeability could be an approach for the treatment of cancer and other diseases. Unlike other nanoparticles, quantum dots have specific functional groups, have charges over their surface, and are extremely small in size (2-10nm), which makes them more permeable through tight junctions. Quantum dots are interesting materials that offer diagnosis and treatment concurrently. Quantum dots are reported to have several applications in pharmaceuticals as well as drug delivery, diagnosis, immunolabeling, and cell labeling tools. However, the existence of heavy metals in quantum dots such as cadmium poses a potential challenge for future medical applications, where quantum dots may be deliberately injected into the body. In this review, we are focusing on various pharmaceutical applications of quantum dots. Graphical Abstract.
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59
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Wang B, Song H, Qu X, Chang J, Yang B, Lu S. Carbon dots as a new class of nanomedicines: Opportunities and challenges. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214010] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Architha N, Ragupathi M, Shobana C, Selvankumar T, Kumar P, Lee YS, Kalai Selvan R. Microwave-assisted green synthesis of fluorescent carbon quantum dots from Mexican Mint extract for Fe 3+ detection and bio-imaging applications. ENVIRONMENTAL RESEARCH 2021; 199:111263. [PMID: 33939978 DOI: 10.1016/j.envres.2021.111263] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 05/16/2023]
Abstract
Biomass-derived carbon quantum dots have drawn special interest owing to their admirable photostability, biocompatibility, fluorescence, high solubility, sensitivity and environmentally friendly properties. In the present work, the Carbon Quantum Dots (CQDs) was synthesized from the Plectranthus amboinicus (Mexican Mint) leaves via the microwave-assisted reflux method. The strong absorption peaks observed from UV-vis spectra at 291 and 330 nm corresponds to the π-π* and n-π* transitions, respectively, reveal the formation of CQDs. The synthesized CQDs showed bright blue fluorescence under UV irradiation with a fluorescence quantum yield of 17% and a maximum emission of 436 nm in the blue region at an excitation wavelength of 340 nm. The HRTEM analysis elucidates that the synthesized CQDs were crystalline and spherical in shape with a particle size of 2.43 ± 0.02 nm. The FT-IR spectroscopy confirms the presence of the different functional groups such as -OH, -CH, CO and C-O. The chemical composition of CQD was revealed through XPS analysis. The synthesized CQDs were used as a fluorescent probe to detect different metal ions, where high selectivity was obtained for Fe3+ ions through quenching phenomenon. The emission intensity of CQD showed a good linear relationship with R2 = 0.9111 with the concentration of Fe3+ ions in the range of 0-15 μM. The fluorescence emission of CQD was turned OFF upon the binding of Fe3+ ions and turned - ON with the addition of ascorbic acid. With this fluorescent turn ON-OFF behaviour of CQD, the NOT and IMPLICATION logic gates were constructed and studied for different input conditions. The biocompatibility of CQD was tested via MTT assay using MCF7 breast cancer cell line, which revealed that CQD synthesized from the Mexican Mint leaves possess less cytotoxicity. Further, the prepared CQD was applied effectively as fluorescent probes in a cell imaging application.
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Affiliation(s)
- Natarajan Architha
- Department of Physics, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Murugesan Ragupathi
- Department of Physics, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Chellappan Shobana
- Department of Zoology, Kongunadu Arts and Science College (Autonomous), G. N. Mills, Coimbatore, 641 029, India
| | - Thangasamy Selvankumar
- Department of Biotechnology, Mahendra Arts & Science College, Kalippatti, Namakkal, 637501, Tamil Nadu, India
| | - Ponnuchamy Kumar
- Department of Animal Health and Management, Alagappa University, Karaikudi, 630 003, India
| | - Yun Sung Lee
- Faculty of Applied Chemical Engineering, Chonnam National University, Gwangju, 500-757, South Korea
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61
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Ge G, Li L, Wang D, Chen M, Zeng Z, Xiong W, Wu X, Guo C. Carbon dots: synthesis, properties and biomedical applications. J Mater Chem B 2021; 9:6553-6575. [PMID: 34328147 DOI: 10.1039/d1tb01077h] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Carbon dots (CDs) are a new type of carbon nanomaterial that have unique physical and chemical properties, good biocompatibility, low toxicity, and easy surface functionalization, making them widely used in biological imaging, environmental monitoring, chemical analysis, targeted drug delivery, disease diagnosis, therapy, etc. In this review, our content is mainly divided into four parts. In the first part, we focused on the preparation methods of CDs, including arc discharge, laser ablation, electrochemical oxidation, chemical oxidation, combustion, hydrothermal/solvent thermal, microwave, template, method etc. Next, we summarized methods of CD modification, including heteroatom doping and surface functionalization. Then, we discussed the optical properties of CDs (ultraviolet absorption, photoluminescence, up-conversion fluorescence, etc.). Lastly, we reviewed the common applications of CDs in biomedicine from the aspects of in vivo and in vitro imaging, sensors, drug delivery, cancer theranostics, etc. Furthermore, we also discussed the existing problems and the future development direction of CDs.
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Affiliation(s)
- Guili Ge
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Science, Central South University, Changsha 410008, China.
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Rasooll MM, Zarei M, Zolfigol MA, Sepehrmansourie H, Omidi A, Hasani M, Gu Y. Novel nano-architectured carbon quantum dots (CQDs) with phosphorous acid tags as an efficient catalyst for the synthesis of multisubstituted 4 H-pyran with indole moieties under mild conditions. RSC Adv 2021; 11:25995-26007. [PMID: 35479474 PMCID: PMC9037214 DOI: 10.1039/d1ra02515e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/28/2021] [Indexed: 01/23/2023] Open
Abstract
In this work, a new nano-structured catalyst with phosphorus acid moieties, synthesized by the reaction of carbon quantum dots (CQDs) and phosphorus acid under refluxing EtOH. The structure and morphology of CQDs–N(CH2PO3H2)2 were fully characterized using various techniques such as Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy, thermogravimetric (TG) analysis, fluorescence and X-ray diffraction (XRD) measurements. The new CQDs–N(CH2PO3H2)2 catalyst was successfully used for the synthesis of 2-amino-6-(2-methyl-1H-indol-3-yl)-4-phenyl-4H-pyran-3,5-dicarbonitriles by the one-pot reaction of various aromatic aldehydes, 3-(1H-indol-3-yl)-3-oxopropanenitrile derivatives and malononitrile in refluxing EtOH and/or ultrasonic irradiation conditions. A new nano-structured catalyst with phosphorus acid moieties, synthesized by the reaction of carbon quantum dots (CQDs) and phosphorus acid under refluxing EtOH.![]()
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Affiliation(s)
- Milad Mohammadi Rasooll
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988 138380709 +988 138282807
| | - Mahmoud Zarei
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988 138380709 +988 138282807
| | - Mohammad Ali Zolfigol
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988 138380709 +988 138282807
| | - Hassan Sepehrmansourie
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988 138380709 +988 138282807
| | - Afsaneh Omidi
- Department of Analytical Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| | - Masoumeh Hasani
- Department of Analytical Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| | - Yanlong Gu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology 1037 Luoyu Road, Hongshan District Wuhan 430074 China
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63
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Nandi N, Gaurav S, Sarkar P, Kumar S, Sahu K. Multifunctional N-Doped Carbon Dots for Bimodal Detection of Bilirubin and Vitamin B 12, Living Cell Imaging, and Fluorescent Ink. ACS APPLIED BIO MATERIALS 2021; 4:5201-5211. [PMID: 35007002 DOI: 10.1021/acsabm.1c00371] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A N-doped carbon dot (NCD) has been synthesized via a simplistic one-step hydrothermal technique using l-aspartic acid and 3,6-diaminoacridine hydrochloride. The NCDs exhibit a high quantum yield (22.7%) and excellent optical stability in aqueous media. Additionally, NCDs display good solid-state yellowish-green emission and are suitable for security ink applications. The remarkable fluorescence (FL) properties of NCDs are further applied to develop a multifunctional sensor for bilirubin (BR) and vitamin B12 (VB12) via fluorescence quenching. We have systematically studied the FL quenching mechanisms of the two analytes. The primary quenching mechanism of BR is via the Förster resonant energy transfer (FRET) pathway facilitated by the H-bonding network between the hydrophilic moieties existing at the surface of BR and NCDs. In contrast, the inner filter effect (IFE) is mainly responsible for the recognition of VB12. The practicability of the nanoprobe NCDs is further tested in real-sample analysis for BR (human serum and urine samples) and VB12 (VB12 tablets, human serum, and energy drink) with a satisfactory outcome. The in vitro competency is also verified in the human cervical cancer cell line (HeLa cell) with negligible cytotoxicity and significant biocompatibility. This result facilitates the application of NCDs for bioimaging and recognition of VB12 in a living organism.
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Affiliation(s)
- Nilanjana Nandi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Shubham Gaurav
- Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Priyanka Sarkar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Sachin Kumar
- Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Kalyanasis Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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64
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Singh G, Kaur H, Sharma A, Singh J, Alajangi HK, Kumar S, Singla N, Kaur IP, Barnwal RP. Carbon Based Nanodots in Early Diagnosis of Cancer. Front Chem 2021; 9:669169. [PMID: 34109155 PMCID: PMC8181141 DOI: 10.3389/fchem.2021.669169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/10/2021] [Indexed: 12/20/2022] Open
Abstract
Detection of cancer at an early stage is one of the principal factors associated with successful treatment outcome. However, current diagnostic methods are not capable of making sensitive and robust cancer diagnosis. Nanotechnology based products exhibit unique physical, optical and electrical properties that can be useful in diagnosis. These nanotech-enabled diagnostic representatives have proved to be generally more capable and consistent; as they selectively accumulated in the tumor site due to their miniscule size. This article rotates around the conventional imaging techniques, the use of carbon based nanodots viz Carbon Quantum Dots (CQDs), Graphene Quantum Dots (GQDs), Nanodiamonds, Fullerene, and Carbon Nanotubes that have been synthesized in recent years, along with the discovery of a wide range of biomarkers to identify cancer at early stage. Early detection of cancer using nanoconstructs is anticipated to be a distinct reality in the coming years.
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Affiliation(s)
- Gurpal Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Harinder Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Akanksha Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
- Department of Biophysics, Panjab University, Chandigarh, India
| | - Joga Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | | | - Santosh Kumar
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Neha Singla
- Department of Biophysics, Panjab University, Chandigarh, India
| | - Indu Pal Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
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65
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Wu H, Xu H, Shi Y, Yuan T, Meng T, Zhang Y, Xie W, Li X, Li Y, Fan L. Recent Advance in Carbon Dots: From Properties to Applications. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000609] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hao Wu
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Huimin Xu
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Yuxin Shi
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Ting Yuan
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Ting Meng
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Yang Zhang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Wenjing Xie
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Xiaohong Li
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Yunchao Li
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
| | - Louzhen Fan
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 China
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66
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Yan J, Lu Y, Xie S, Tan H, Tan W, Li N, Xu L, Xu J. Highly Fluorescent N-Doped Carbon Quantum Dots Derived from Bamboo Stems for Selective Detection of Fe 3+ Ions in Biological Systems. J Biomed Nanotechnol 2021; 17:312-321. [PMID: 33785101 DOI: 10.1166/jbn.2021.3034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The establishment of sensing platform for trace analysis of Fe3+ in biological systems is meaningful for health monitoring. Herein, a Fe3+ sensitive fluorescent nanoprobe was constructed based on highly fluorescent N-doped carbon quantum dots (NCQDs) derived from bamboo stems through a hydrothermal method employing ethylenediamine as the nitrogen dopant. The prepared NCQDs had a uniformly distributed size and their mean size was around 2.43 nm. Abundant functional groups (C=N, N-H, C=O, and carboxyl) anchored on NCQDs demonstrated successful doping of N in CQDs. The obtained NCQDs possessed a high fluorescence quantum yield of 20.02% and outstanding fluorescence stability over a wide pH range and at high ionic strengths. Moreover, Fe3+ ions presented a specific fluorescent quenching effect to the as-prepared NCQDs. The calibration curve for fluorescence quenching degree corresponding to Fe3+ concentration showed a linear response in a range of 0.01-10 µM, and detection limit was 0.486 µM, which indicated that the NCQDs had high sensitivity to Fe3+ ions. Ascribed to these unique properties, the NCQDs were selected as luminescent probes for trace amount of Fe3+ ions in human serum. These results demonstrated their promising use in clinical diagnostics and other biologically relevant studies.
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Affiliation(s)
- Jiamin Yan
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry Hunan University of Technology Zhuzhou 412007, P. R. China
| | - Yuneng Lu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry Hunan University of Technology Zhuzhou 412007, P. R. China
| | - Shaowen Xie
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry Hunan University of Technology Zhuzhou 412007, P. R. China
| | - Haihu Tan
- College of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou, 412007, P. R. China
| | - Weilan Tan
- Department of Clinical Laboratory, Zhuzhou Maternal and Child Health Hospital, Zhuzhou, 412099, P. R. China
| | - Na Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry Hunan University of Technology Zhuzhou 412007, P. R. China
| | - Lijian Xu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry Hunan University of Technology Zhuzhou 412007, P. R. China
| | - Jianxiong Xu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry Hunan University of Technology Zhuzhou 412007, P. R. China
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67
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Go G, Lee CS, Yoon YM, Lim JH, Kim TH, Lee SH. PrP C Aptamer Conjugated-Gold Nanoparticles for Targeted Delivery of Doxorubicin to Colorectal Cancer Cells. Int J Mol Sci 2021; 22:ijms22041976. [PMID: 33671292 PMCID: PMC7922473 DOI: 10.3390/ijms22041976] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 02/11/2021] [Accepted: 02/13/2021] [Indexed: 12/15/2022] Open
Abstract
Anticancer drugs, such as fluorouracil (5-FU), oxaliplatin, and doxorubicin (Dox) are commonly used to treat colorectal cancer (CRC); however, owing to their low response rate and adverse effects, the development of efficient drug delivery systems (DDSs) is required. The cellular prion protein PrPC, which is a cell surface glycoprotein, has been demonstrated to be overexpressed in CRC, however, there has been no research on the development of PrPC-targeting DDSs for targeted drug delivery to CRC. In this study, PrPC aptamer (Apt)-conjugated gold nanoparticles (AuNPs) were synthesized for targeted delivery of Dox to CRC. Thiol-terminated PrPC-Apt was conjugated to AuNPs, followed by hybridization of its complementary DNA for drug loading. Finally, Dox was loaded onto the AuNPs to synthesize PrPC-Apt-functionalized doxorubicin-oligomer-AuNPs (PrPC-Apt DOA). The PrPC-Apt DOA were spherical nanoparticles with an average diameter of 20 nm. Treatment of CRC cells with PrPC-Apt DOA induced reactive oxygen species generation by decreasing catalase and superoxide dismutase activities. In addition, treatment with PrPC-Apt DOA inhibited mitochondrial functions by decreasing the expression of peroxisome proliferator-activated receptor gamma coactivator 1-alpha, complex 4 activity, and oxygen consumption rates. Compared to free Dox, PrPC-Apt DOA decreased proliferation and increased apoptosis of CRC cells to a greater degree. In this study, we demonstrated that PrPC-Apt DOA targeting could effectively deliver Dox to CRC cells. PrPC-Apt DOA can be used as a treatment for CRC, and have the potential to replace existing anticancer drugs, such as 5-FU, oxaliplatin, and Dox.
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Affiliation(s)
- Gyeongyun Go
- Department of Biochemistry, Soonchunhyang University College of Medicine, Cheonan 31151, Korea;
- Department of Biochemistry, BK21FOUR Project2, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea;
| | - Chang-Seuk Lee
- Department of ICT Environmental Health System, Graduate School, Soonchunhyang University, Asan 31538, Korea;
| | - Yeo Min Yoon
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea;
| | - Ji Ho Lim
- Department of Biochemistry, BK21FOUR Project2, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea;
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea;
| | - Tae Hyun Kim
- Department of ICT Environmental Health System, Graduate School, Soonchunhyang University, Asan 31538, Korea;
- Department of Chemistry, Soonchunhyang University, Asan 31538, Korea
- Correspondence: (T.H.K.); (S.H.L.)
| | - Sang Hun Lee
- Department of Biochemistry, Soonchunhyang University College of Medicine, Cheonan 31151, Korea;
- Department of Biochemistry, BK21FOUR Project2, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea;
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea;
- Correspondence: (T.H.K.); (S.H.L.)
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68
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Rai A, Noor S, Ahmad SI, Alajmi MF, Hussain A, Abbas H, Hasan GM. Recent Advances and Implication of Bioengineered Nanomaterials in Cancer Theranostics. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:91. [PMID: 33494239 PMCID: PMC7909769 DOI: 10.3390/medicina57020091] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/28/2020] [Accepted: 01/05/2021] [Indexed: 02/06/2023]
Abstract
Cancer is one of the most common causes of death and affects millions of lives every year. In addition to non-infectious carcinogens, infectious agents contribute significantly to increased incidence of several cancers. Several therapeutic techniques have been used for the treatment of such cancers. Recently, nanotechnology has emerged to advance the diagnosis, imaging, and therapeutics of various cancer types. Nanomaterials have multiple advantages over other materials due to their small size and high surface area, which allow retention and controlled drug release to improve the anti-cancer property. Most cancer therapies have been known to damage healthy cells due to poor specificity, which can be avoided by using nanosized particles. Nanomaterials can be combined with various types of biomaterials to make it less toxic and improve its biocompatibility. Based on these properties, several nanomaterials have been developed which possess excellent anti-cancer efficacy potential and improved diagnosis. This review presents the latest update on novel nanomaterials used to improve the diagnostic and therapeutic of pathogen-associated and non-pathogenic cancers. We further highlighted mechanistic insights into their mode of action, improved features, and limitations.
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Affiliation(s)
- Ayushi Rai
- Department of Nanoscience, Central University of Gujarat, Sector 29, Gandhinagar 382030, India;
| | - Saba Noor
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India;
| | - Syed Ishraque Ahmad
- Department of Chemistry, Zakir Husain Delhi College, University of Delhi, New Delhi 110002, India;
| | - Mohamed F. Alajmi
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (M.F.A.); (A.H.)
| | - Afzal Hussain
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (M.F.A.); (A.H.)
| | - Hashim Abbas
- Department of Medicine, Nottingham University Hospitals, NHS Trust, Nottingham NG7 2UH, UK;
| | - Gulam Mustafa Hasan
- Department of Biochemistry, College of Medicine, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
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69
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Wu H, Su W, Xu H, Zhang Y, Li Y, Li X, Fan L. Applications of carbon dots on tumour theranostics. VIEW 2021. [DOI: 10.1002/viw.20200061] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Hao Wu
- College of Chemistry Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education Beijing Normal University Beijing China
| | - Wen Su
- College of Chemistry Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education Beijing Normal University Beijing China
| | - Huimin Xu
- College of Chemistry Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education Beijing Normal University Beijing China
| | - Yang Zhang
- College of Chemistry Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education Beijing Normal University Beijing China
| | - Yunchao Li
- College of Chemistry Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education Beijing Normal University Beijing China
| | - Xiaohong Li
- College of Chemistry Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education Beijing Normal University Beijing China
| | - Louzhen Fan
- College of Chemistry Key Laboratory of Theoretical & Computational Photochemistry, and Radiopharmaceuticals, Ministry of Education Beijing Normal University Beijing China
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Hsin TH, Dhenadhayalan N, Lin KC. Ligusticum Striatum-Derived Carbon Dots as Nanocarriers to Deliver Methotrexate for Effective Therapy of Cancer Cells. ACS APPLIED BIO MATERIALS 2020; 3:8786-8794. [DOI: 10.1021/acsabm.0c01151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Tzu-Han Hsin
- Department of Chemistry, National Taiwan University, and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Namasivayam Dhenadhayalan
- Department of Chemistry, National Taiwan University, and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - King-Chuen Lin
- Department of Chemistry, National Taiwan University, and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
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71
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Ma X, Liu X, Li Y, Xi X, Yao Q, Fan J. Influence of crystallization temperature on fluorescence of n-diamond quantum dots. NANOTECHNOLOGY 2020; 31:505712. [PMID: 33021232 DOI: 10.1088/1361-6528/abb72d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanodiamonds are popular biological labels because of their superior mechanical and optical properties. Their surfaces bridging the core and surrounding medium play a key role in determining their bio-linkage and photophysical properties. n-diamond is a mysterious carbon allotrope whose crystal structure remains debated. We study the influence of the crystallization temperature on the fluorescence properties of the colloidal n-diamond quantum dots (n-DQDs) with sizes of several nanometers. They exhibit multiband fluorescence across the whole visible region which depends sensitively on the crystallization temperature. Their surfaces turn from hydrophobic ones rich of sp2-bonded carbon into hydrophilic ones rich of carboxyl derivatives and hydroxyl groups as the crystallization temperature increases. The different surface states correlated with the surface structures account for the distinct fluorescence properties of the n-DQDs crystallized at different temperatures. These high-purity ultrasmall n-DQDs with tunable surface chemistry and fluorescence properties are promising multicolor biomarkers and lighting sources.
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Affiliation(s)
- Xuanxuan Ma
- School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xiaoyu Liu
- School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Yuanyuan Li
- School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Xiaonan Xi
- School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Qianqin Yao
- School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Jiyang Fan
- School of Physics, Southeast University, Nanjing 211189, People's Republic of China
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Abstract
Breast cancer (BC) is increasing as a significant cause of mortality among women. In this context, early diagnosis and treatment strategies for BC are being developed by researchers at the cellular level using advanced nanomaterials. However, immaculate etiquette is the prerequisite for their implementation in clinical practice. Considering the stolid nature of cancer, combining diagnosis and therapy (theranostics) using graphene quantum dots (GQDs) is a prime focus and challenge for researchers. In a nutshell, GQDs is a new shining star among various fluorescent materials, which has acclaimed fame in a short duration in materials science and the biomedical field as well. From this perspective, we review various strategies in BC treatment using GQDs alone or in combination. In addition, the photophysical properties of GQDs explored in photothermal therapy, hyperthermia therapy, and photodynamic therapy are also discussed. Moreover, we also focus on the strategic use of GQDs both as drug carriers and as combinatorial-guided drug delivery motifs. This Review provides an update for the scientific community to plan and expand advanced theranostic horizons in BC using GQDs.
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Affiliation(s)
- Rahul S Tade
- Department of Pharmaceutical Chemistry, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur-425405, Maharashtra, India
| | - Pravin O Patil
- Department of Pharmaceutical Chemistry, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur-425405, Maharashtra, India
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73
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Kargozar S, Hoseini SJ, Milan PB, Hooshmand S, Kim H, Mozafari M. Quantum Dots: A Review from Concept to Clinic. Biotechnol J 2020; 15:e2000117. [DOI: 10.1002/biot.202000117] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/10/2020] [Indexed: 01/30/2023]
Affiliation(s)
- Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Seyed Javad Hoseini
- Department of Medical Biotechnology and Nanotechnology, School of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Peiman Brouki Milan
- Cellular and Molecular Research Centre Iran University of Medical Sciences Tehran Iran
- Institutes of Regenerative Medicine, Faculty of Advanced Technologies in Medicine Iran University of Medical Sciences Tehran Iran
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine Iran University of Medical Sciences Tehran Iran
| | - Sara Hooshmand
- Pharmacological Research Center of Medicinal Plants Mashhad University of Medical Sciences Mashhad Iran
- Department of Pharmacology, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Hae‐Won Kim
- Institute of Tissue Regeneration Engineering (ITREN) Dankook University Cheonan Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Dankook University Cheonan Republic of Korea
- Department of Biomaterials Science, School of Dentistry Dankook University Cheonan Republic of Korea
| | - Masoud Mozafari
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine Iran University of Medical Sciences Tehran Iran
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Hu Y, Gao Z, Luo J. Fluorescence detection of malachite green in fish tissue using red emissive Se,N,Cl-doped carbon dots. Food Chem 2020; 335:127677. [PMID: 32739822 DOI: 10.1016/j.foodchem.2020.127677] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 07/17/2020] [Accepted: 07/23/2020] [Indexed: 12/22/2022]
Abstract
Facile detection of malachite green (MG), a toxic dye, in aquaculture is urgently demanded for environment and food safety. Herein, we design a novel fluorescent probe, namely red emissive Se,N,Cl-doped carbon dots (CDs), to accurately determinate MG. CDs are prepared by hydrothermal treatment of selenourea and o-phenylenediamine in HCl solution. This material exhibits excitation-independent dual emissions at 625 and 679 nm, with a high quantum yield of 23.6%. A selective and sensitive fluorescent sensor toward MG is established based on inner filter effect, because both the excitation and emission light of CDs can be strongly absorbed by MG. The fluorescence quenching of CDs is linear to the MG concentration over the range of 0.07-2.50 μM with a low detection limit of 21 nM. Trace-level analysis of MG in fish tissue is successfully explored, demonstrating the great potential of the proposed sensor for MG monitoring in aquatic products.
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Affiliation(s)
- Yaoping Hu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Zhijin Gao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Junfei Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
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