1
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Wang D, Wang X, Zhou S, Ren L, Meng Y, Ma R, Wang S, Liu Z, Alamri AS, Alhomrani M, Zhang Z, Cui F, Li T, Li J. Radish residue carbon dots-based novel starch/chitosan film with high antioxidant, biocompatibility, and antibacterial activities for salmon fillets' active packaging. Int J Biol Macromol 2024; 273:133107. [PMID: 38897524 DOI: 10.1016/j.ijbiomac.2024.133107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/15/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
The corruption of refrigerated marine fish results in global economic losses exceeding 25 billion euros annually. However, conventional preservatives present challenges, including singular functionality, potential toxicity, and high cost. In response, we developed multifunctional, safe, cost-effective, and environmentally friendly carbon dots derived from radish residues (R-CDs) by using the one-pot hydrothermal method. The surface of R-CDs is enriched with hydroxyl groups, conferring broad-spectrum antioxidant and antibacterial characteristics. R-CDs exhibited a notable 72.92 % inhibition rate on lipid peroxidation, surpassing the effectiveness of vitamin C (46 %). Additionally, R-CDs demonstrated impressive scavenging rates of 93.8 % for 2,2-diphenyl-1-picrylhydrazyl free radicals and 99.36 % for 2,2-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid-free radicals. In combating spoilage bacteria such as Aeromonas sobria and Hafnia alvei, R-CDs disrupted cell structures and influenced intracellular substance content. Importantly, co-cultivation with R-CDs showed no significant cytotoxicity. Further incorporating R-CDs into films using starch and chitosan (S/CS/R-CDs films) for efficient and convenient use in salmon fillets preservation. S/CS/R-CDs films effectively inhibited the growth of spoilage bacteria, lipid oxidation, and protein decomposition in salmon fillets, thereby extending shelf life by 4 days. This combination of antioxidant and antibacterial properties in R-CDs, along with the functional films, presents a promising approach for enhancing salmon fillet preservation.
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Affiliation(s)
- Dangfeng Wang
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, China Light Industry Key Laboratory of Marine Fish Processing, Jinzhou, Liaoning, 121013, China
| | - Xin Wang
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, China Light Industry Key Laboratory of Marine Fish Processing, Jinzhou, Liaoning, 121013, China
| | - Shanshan Zhou
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, China Light Industry Key Laboratory of Marine Fish Processing, Jinzhou, Liaoning, 121013, China
| | - Likun Ren
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, China Light Industry Key Laboratory of Marine Fish Processing, Jinzhou, Liaoning, 121013, China
| | - Yuqiong Meng
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
| | - Rui Ma
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
| | - Shulin Wang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai 810016, China
| | - Zhiteng Liu
- Dalian Food Co., Ltd., Jinzhou, Liaoning 121209, China
| | - Abdulhakeem S Alamri
- Department of Clinical Laboratory Sciences, The Faculty of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
| | - Majid Alhomrani
- Department of Clinical Laboratory Sciences, The Faculty of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
| | - Zihui Zhang
- Comprehensive Inspection and Testing Center for Agriculture and Animal Husbandry in Chifeng City, Chifeng, Inner Mongolia 024000, China
| | - Fangchao Cui
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, China Light Industry Key Laboratory of Marine Fish Processing, Jinzhou, Liaoning, 121013, China.
| | - Tingting Li
- Key Laboratory of Biotechnology and Bioresources Utilization (Dalian Minzu University), Ministry of Education, Dalian, Liaoning, 116029, China.
| | - Jianrong Li
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, China Light Industry Key Laboratory of Marine Fish Processing, Jinzhou, Liaoning, 121013, China.
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2
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Prathap N, Balla P, Shivakumar MS, Periyasami G, Karuppiah P, Ramasamy K, Venkatesan S. Prosopis juliflora hydrothermal synthesis of high fluorescent carbon dots and its antibacterial and bioimaging applications. Sci Rep 2023; 13:9676. [PMID: 37322059 PMCID: PMC10272132 DOI: 10.1038/s41598-023-36033-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/28/2023] [Indexed: 06/17/2023] Open
Abstract
Carbon dots have stimulated the curiosity of biomedical researchers due to their unique properties, such as less toxicity and high biocompatibility. The synthesis of carbon dots for biomedical application is a core area in research. In the current research, an eco-friendly hydrothermal technique was employed to synthesize high fluorescent, plant-derived carbon dots from Prosopis juliflora leaves extract (PJ-CDs). The synthesized PJ-CDs were investigated by physicochemical evaluation instruments such as fluorescence spectroscopy, SEM, HR-TEM, EDX, XRD, FTIR, and UV-Vis. The UV-Vis absorption peaks obtained at 270 nm due to carbonyl functional groups shifts of n→π*. In addition, a quantum yield of 7.88 % is achieved. The synthesized PJ-CDs showing the presence of carious functional groups O-H, C-H, C=O, O-H, C-N and the obtained particles in spherical shape with an average size of 8 nm. The fluorescence PJ-CDs showed stability against various environmental factors such as a broad range of ionic strength and pH gradient. The antimicrobial activity of PJ-CDs was tested against a Staphylococcus aureus, and a Escherichia coli. The results suggest that the PJ-CDs could substantially inhibit the growth of Staphylococcus aureus. The findings also indicate that PJ-CDs are effective materials for bio-imaging in Caenorhabditis elegans and they can be also used for pharmaceutical applications.
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Affiliation(s)
- Nadarajan Prathap
- Department of Environmental Science, School of Energy and Environmental Sciences, Periyar University, Salem, India
| | - Putrakumar Balla
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | | | - Govindasami Periyasami
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ponmurugan Karuppiah
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Krishnaraj Ramasamy
- Department of Mechanical Engineering, College of Engineering and Technology, and Director Centre for Excellence in Indigenous Knowledge Innovative Technology Transfer and Entrepreneurship, Dambi Dollo University, Dembi Dollo, Ethiopia.
| | - Srinivasan Venkatesan
- Department of Environmental Science, School of Energy and Environmental Sciences, Periyar University, Salem, India.
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3
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Liu Y, Zhong D, Yu L, Shi Y, Xu Y. Primary Amine Functionalized Carbon Dots for Dead and Alive Bacterial Imaging. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:437. [PMID: 36770398 PMCID: PMC9920602 DOI: 10.3390/nano13030437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Small molecular dyes are commonly used for bacterial imaging, but they still meet a bottleneck of biological toxicity and fluorescence photobleaching. Carbon dots have shown high potential for bio-imaging due to their low cost and negligible toxicity and anti-photobleaching. However, there is still large space to enhance the quantum yield of the carbon quantum dots and to clarify their mechanisms of bacterial imaging. Using carbon dots for dyeing alive bacteria is difficult because of the thick density and complicated structure of bacterial cell walls. In this work, both dead or alive bacterial cell imaging can be achieved using the primary amine functionalized carbon dots based on their small size, excellent quantum yield and primary amine functional groups. Four types of carbon quantum dots were prepared and estimated for the bacterial imaging. It was found that the spermine as one of precursors can obviously enhance the quantum yield of carbon dots, which showed a high quantum yield of 66.46% and high fluorescence bleaching-resistance (70% can be maintained upon 3-h-irradiation). Furthermore, a mild modifying method was employed to bound ethylenediamine on the surface of the spermine-carbon dots, which is favorable for staining not only the dead bacterial cells but also the alive ones. Investigations of physical structure and chemical groups indicated the existence of primary amine groups on the surface of spermine-carbon quantum dots (which own a much higher quantum yield) which can stain alive bacterial cells visibly. The imaging mechanism was studied in detail, which provides a preliminary reference for exploring efficient and environment-friendly carbon dots for bacterial imaging.
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Affiliation(s)
- Yuting Liu
- Institute of Biomedical Engineering, College of Life Science, Basic Medical College, Qingdao University, Qingdao 266071, China
| | - Di Zhong
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, No. 308 Ningxia Road, Qingdao 266000, China
| | - Lei Yu
- Institute of Biomedical Engineering, College of Life Science, Basic Medical College, Qingdao University, Qingdao 266071, China
| | - Yanfeng Shi
- Institute of Biomedical Engineering, College of Life Science, Basic Medical College, Qingdao University, Qingdao 266071, China
| | - Yuanhong Xu
- Institute of Biomedical Engineering, College of Life Science, Basic Medical College, Qingdao University, Qingdao 266071, China
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4
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Lin F, Wang Z, Wu FG. Carbon Dots for Killing Microorganisms: An Update since 2019. Pharmaceuticals (Basel) 2022; 15:1236. [PMID: 36297348 PMCID: PMC9607459 DOI: 10.3390/ph15101236] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 11/07/2022] Open
Abstract
Frequent bacterial/fungal infections and occurrence of antibiotic resistance pose increasing threats to the public and thus require the development of new antibacterial/antifungal agents and strategies. Carbon dots (CDs) have been well demonstrated to be promising and potent antimicrobial nanomaterials and serve as potential alternatives to conventional antibiotics. In recent years, great efforts have been made by many researchers to develop new carbon dot-based antimicrobial agents to combat microbial infections. Here, as an update to our previous relevant review (C 2019, 5, 33), we summarize the recent achievements in the utilization of CDs for microbial inactivation. We review four kinds of antimicrobial CDs including nitrogen-doped CDs, metal-containing CDs, antibiotic-conjugated CDs, and photoresponsive CDs in terms of their starting materials, synthetic route, surface functionalization, antimicrobial ability, and the related antimicrobial mechanism if available. In addition, we summarize the emerging applications of CD-related antimicrobial materials in medical and industry fields. Finally, we discuss the existing challenges of antimicrobial CDs and the future research directions that are worth exploring. We believe that this review provides a comprehensive overview of the recent advances in antimicrobial CDs and may inspire the development of new CDs with desirable antimicrobial activities.
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Affiliation(s)
| | | | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, China
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5
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Qie X, Zan M, Gui P, Chen H, Wang J, Lin K, Mei Q, Ge M, Zhang Z, Tang Y, Dong WF, Song Y. Design, Synthesis, and Application of Carbon Dots With Synergistic Antibacterial Activity. Front Bioeng Biotechnol 2022; 10:894100. [PMID: 35757804 PMCID: PMC9213729 DOI: 10.3389/fbioe.2022.894100] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/27/2022] [Indexed: 11/13/2022] Open
Abstract
The diversity of bacteria and their ability to acquire drug resistance lead to many challenges in traditional antibacterial methods. Photothermal therapies that convert light energy into localized physical heat to kill target microorganisms do not induce resistance and provide an alternative for antibacterial treatment. However, many photothermal materials cannot specifically target bacteria, which can lead to thermal damage to normal tissues, thus seriously affecting their biological applications. Here, we designed and synthesized bacteria-affinitive photothermal carbon dots (BAPTCDs) targeting MurD ligase that catalyzes the synthesis of peptidoglycan (PG) in bacteria. BAPTCDs presented specific recognition ability and excellent photothermal properties. BAPTCDs can bind to bacteria very tightly due to their chiral structure and inhibit enzyme activity by competing with D-glutamic acid to bind to MurD ligases, thus inhibiting the synthesis of bacterial walls. It also improves the accuracy of bacteria treatment by laser irradiation. Through the synergy of biochemical and physical effects, the material offers outstanding antibacterial effects and potentially contributes to tackling the spread of antibiotic resistance and facilitation of antibiotic stewardship.
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Affiliation(s)
- Xingwang Qie
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Minghui Zan
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Ping Gui
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Hongyi Chen
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.,University of Science and Technology of China, Hefei, China
| | - Jingkai Wang
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.,University of Science and Technology of China, Hefei, China
| | - Kaicheng Lin
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Qian Mei
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Mingfeng Ge
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Zhiqiang Zhang
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Yuguo Tang
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Wen-Fei Dong
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.,University of Science and Technology of China, Hefei, China
| | - Yizhi Song
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China.,University of Science and Technology of China, Hefei, China
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6
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Li H, Zhang Y, Huang Y, Cao D, Wang S. Dissolution-enhanced emission of 1,3,6,8-tetrakis( p-benzoic acid)pyrene for selectively detecting protamine and “on-to-on” heparin detection in water. NEW J CHEM 2022. [DOI: 10.1039/d1nj03946f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A small molecule TBAPy was used as a turn-on fluorescent probe to selectively detect protamine and heparin based on the dissolution-enhanced emission (DEE) phenomenon.
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Affiliation(s)
- Hongtao Li
- State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yuting Zhang
- State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yan Huang
- State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Dapeng Cao
- State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Shitao Wang
- State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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7
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Jie M, Guo R, Zhang Y, Huang J, Xu G, Li M, Yue X, Ji B, Bai Y. A facile fluorescent sensor based on nitrogen-doped carbon dots derived from Listeria monocytogenes for highly selective and visual detection of iodide and pH. RSC Adv 2022; 12:7295-7305. [PMID: 35424687 PMCID: PMC8982288 DOI: 10.1039/d2ra00826b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 02/25/2022] [Indexed: 11/21/2022] Open
Abstract
Listeria monocytogenes-derived nitrogen-doped carbon dots served as a facile fluorescent sensor with excellent sensing performances for iodide with low detection limit of 20 nmol L−1 and wide pH range from 1.81 to 11.82.
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Affiliation(s)
- Mingsha Jie
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan Province, 450001, P. R. China
- Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, Henan Province, 450001, P. R. China
| | - Ruipeng Guo
- School of Mechanical and Electrical Engineering, Henan Vocational College of Applied Technology, Zhengzhou, Henan Province, 450042, P. R. China
| | - Yanan Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan Province, 450001, P. R. China
| | - Jianing Huang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan Province, 450001, P. R. China
| | - Gaigai Xu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan Province, 450001, P. R. China
| | - Min Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan Province, 450001, P. R. China
- Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, Henan Province, 450001, P. R. China
| | - Xiaoyue Yue
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan Province, 450001, P. R. China
- Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, Henan Province, 450001, P. R. China
| | - Baocheng Ji
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan Province, 450001, P. R. China
- Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, Henan Province, 450001, P. R. China
| | - Yanhong Bai
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan Province, 450001, P. R. China
- Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, Henan Province, 450001, P. R. China
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8
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Maruthapandi M, Saravanan A, Das P, Luong JHT, Gedanken A. Microbial inhibition and biosensing with multifunctional carbon dots: Progress and perspectives. Biotechnol Adv 2021; 53:107843. [PMID: 34624454 DOI: 10.1016/j.biotechadv.2021.107843] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/29/2021] [Accepted: 10/03/2021] [Indexed: 12/25/2022]
Abstract
Carbon dots (CDs) and their doped counterparts including nitrogen-doped CDs (N@CDs) have been synthesized by bottom-up or top-down approaches from different precursors. The attractiveness of such emerging 2D‑carbon-based nanosized materials is attributed to their excellent biocompatibility, preparation, aqueous dispersibility, and functionality. The antimicrobial, optical, and electrochemical properties of CDs have been advocated for two important biotechnological applications: bacterial eradication and sensing/biosensing. CDs as well as N@CDs act as antimicrobial agents as their surfaces encompass functional hydroxyl, carboxyl, and amino groups that generate free radicals. As a new class of photoluminescent nanomaterials, CDs can be employed in diversified analytics. CDs with surface carboxyl or amino groups form nanocomposites with nanomaterials or be conjugated with biorecognition molecules toward the development of sensors/biosensors. The deployment of conductive CDs in electrochemical sensing has also increased significantly because of their quantum size, excellent biocompatibility, enzyme-mimicking activity, and high surface area. The review also addresses the ongoing challenges and promises of CDs in pathogenesis and analytics. Perspectives on the future possibilities include the use of CDs in microbial viability assay, wound healing, antiviral therapy, and medical devices.
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Affiliation(s)
- Moorthy Maruthapandi
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Arumugam Saravanan
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Poushali Das
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - John H T Luong
- School of Chemistry, University College Cork, Cork T12 YN60, Ireland
| | - Aharon Gedanken
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel.
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9
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Wang HJ, Hou WY, Kang J, Zhai XY, Chen HL, Hao YW, Wan GY. The facile preparation of solid-state fluorescent carbon dots with a high fluorescence quantum yield and their application in rapid latent fingerprint detection. Dalton Trans 2021; 50:12188-12196. [PMID: 34382986 DOI: 10.1039/d1dt01510a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Because of direct π-π interactions and excessive energy resonance transfer, it is very challenging to prepare carbon dots (CDs) with a high fluorescence quantum yield (QY) in the solid state. In this study, novel CDs which gave solid-state fluorescence (SSF) with high brightness were successfully prepared via a simple microwave-assisted method. The prepared ScCDs can emit strong blue fluorescence in the solid state, and the absolute QY of this ScCDs powder reaches 51.7%. Such a high QY means that the ScCDs powder could be successfully applied in rapid latent fingerprint (LFP) detection. The LFP detection performance of this ScCDs powder was studied in detail, and the results show that the LFPs developed using the ScCDs powder can be visualized with high definition and contrast under different conditions. This research not only developed a new type of SSF-emitting CDs, but it also proved that the developed CDs have great potential for applications in LFP detection, and this research may also provide inspiration and ideas for the design of new SSF-emitting CDs.
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Affiliation(s)
- Hai-Jiao Wang
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Wan-Yi Hou
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Jing Kang
- College of Life Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Xin-Yu Zhai
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Hong-Li Chen
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Yong-Wei Hao
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Guo-Yun Wan
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
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10
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Ghirardello M, Ramos-Soriano J, Galan MC. Carbon Dots as an Emergent Class of Antimicrobial Agents. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1877. [PMID: 34443713 PMCID: PMC8400628 DOI: 10.3390/nano11081877] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 01/15/2023]
Abstract
Antimicrobial resistance is a recognized global challenge. Tools for bacterial detection can combat antimicrobial resistance by facilitating evidence-based antibiotic prescribing, thus avoiding their overprescription, which contributes to the spread of resistance. Unfortunately, traditional culture-based identification methods take at least a day, while emerging alternatives are limited by high cost and a requirement for skilled operators. Moreover, photodynamic inactivation of bacteria promoted by photosensitisers could be considered as one of the most promising strategies in the fight against multidrug resistance pathogens. In this context, carbon dots (CDs) have been identified as a promising class of photosensitiser nanomaterials for the specific detection and inactivation of different bacterial species. CDs possess exceptional and tuneable chemical and photoelectric properties that make them excellent candidates for antibacterial theranostic applications, such as great chemical stability, high water solubility, low toxicity and excellent biocompatibility. In this review, we will summarize the most recent advances on the use of CDs as antimicrobial agents, including the most commonly used methodologies for CD and CD/composites syntheses and their antibacterial properties in both in vitro and in vivo models developed in the last 3 years.
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Affiliation(s)
- Mattia Ghirardello
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Javier Ramos-Soriano
- Centro de Investigaciones Científicas Isla de La Cartuja, Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain;
| | - M. Carmen Galan
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
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