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Sharma N, Sharma A, Park M, Lee HJ. Silkworm-derived carbon nano rods (swCNR) for detection of bismuth ions (Bi 3+) in aquatic medium and their antiradical properties. Heliyon 2024; 10:e33572. [PMID: 39040249 PMCID: PMC11261021 DOI: 10.1016/j.heliyon.2024.e33572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 05/26/2024] [Accepted: 06/24/2024] [Indexed: 07/24/2024] Open
Abstract
The extensive utilization of bismuth and its derivatives in many industries, such as chemical, semiconductor, pharmaceutical, and cosmetics, leads to their accumulation in wastewater, posing a risk to both human health and the environment. Carbon nanorods (CNR) are fluorescent nanoparticles with an ability to detect various analytes as sensing probes. This study focuses on the production, structure, and chemical composition characterization of silkworm-derived CNR (swCNR) and their ability to detect bismuth ions (Bi3+) and inhibit radicals. The optimum wavelength for exciting the fluorescence of swCNR was 370 nm, and the resulting emission peak was observed at 436 nm. The prepared swCNR showed static fluorescence quenching mechanism-based sensing of Bi3+ ions with a limit of detection of 175 nM and two linear ranges from 0.5 to 5 μM (R2 = 0.9997) and 10-50 μM (R2 = 0.9995). The swCNR demonstrated high selectivity in detecting Bi3+ ions in the spiked river water samples, thus establishing the swCNR's role as a nano fluorescence probe designed for the selective detection of Bi3+ ions among other metal ions. Favorable results for the antiradical ability of swCNR were obtained against hydroxyl, 2,2 diphenyl-1 picrylhydrazyl, and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) radicals with scavenging percentages of 15, 32, and 90, respectively. The possible applications of swCNR in the environmental and antioxidant sectors are proposed in this study.
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Affiliation(s)
- Neha Sharma
- College of Bionanotechnology, Department of Food and Nutrition, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Anshul Sharma
- College of Bionanotechnology, Department of Food and Nutrition, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
- Institute for Aging and Clinical Nutrition Research, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Miey Park
- College of Bionanotechnology, Department of Food and Nutrition, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
- Institute for Aging and Clinical Nutrition Research, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Hae-Jeung Lee
- College of Bionanotechnology, Department of Food and Nutrition, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
- Institute for Aging and Clinical Nutrition Research, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health Science and Technology (GAIHST), Gachon University, Incheon, 21999, Republic of Korea
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Luangwanta T, Turren-Cruz SH, Masi S, Das Adhikari S, Recalde IB, Zanatta M, Iglesias D, Rodríguez-Pereira J, Gené-Marimon S, Martinez-Ferrero E, Kaowphong S, Palomares E, Sans V, Gualdrón-Reyes AF, Mora-Seró I. Enabling white color tunability in complex 3D-printed composites by using lead-free self-trapped exciton 2D perovskite/carbon quantum dot inks. NANOSCALE 2024; 16:10262-10272. [PMID: 38716577 DOI: 10.1039/d4nr00707g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
The generation of stable white light emission using lead-free perovskites remains a huge challenge in the development of future display and lighting technologies, due to fast material deterioration and the decrease of the color quality. In this work, we report a combination of diverse types of 2D A2SnX4 (A = bulky cation, X = Br, I) perovskites exhibiting self-trapped exciton (STE) emission and blue luminescent carbon quantum dots (CQDs), with the purpose of generating A2SnX4/CQD inks with a broadband emission in the visible region and a tunable white light color. By varying the concentration of the 2D perovskite, the white emission of the mixtures is modulated to cool, neutral, and warm tonalities, with a PL quantum yield up to 45%. From the combinations, the PEA2SnI4/CQD-based ink shows the longest stability, due to suitable surface ligand passivation provided by the capping ligands covering the CQDs, compensating the defect sites in the perovskite. Then, by incorporating the PEA2SnI4/CQDs inks into an acrylate polymer matrix, the quenching of the PL component from the perovskite was restrained, being stable for >400 h under ambient conditions and at a relative humidity of ∼50%, and allowing the preparation of complex 3D-printed composites with stable white emission tonalities. This contribution offers an application of STE-based Sn-perovskites to facilitate the future fabrication of lead-free white-light optoelectronic devices.
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Affiliation(s)
- Tawanwit Luangwanta
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
- Department of Chemistry, Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Silver-Hamil Turren-Cruz
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
- Department of Physical Chemistry, Polish Academy of Sciences, Warsaw 01-224, Poland
| | - Sofia Masi
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Samrat Das Adhikari
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Ileana B Recalde
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Marcileia Zanatta
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Diego Iglesias
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Jhonatan Rodríguez-Pereira
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 53002 Pardubice, Czech Republic
| | - Santi Gené-Marimon
- The Institute of Chemical Research of Catalonia - CERCA (ICIQ-CERCA), Tarragona, 43007, Spain
| | | | - Sulawan Kaowphong
- Department of Chemistry, Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Emilio Palomares
- The Institute of Chemical Research of Catalonia - CERCA (ICIQ-CERCA), Tarragona, 43007, Spain
- ICREA, Passeig Lluís Companys, 28, 08010 Barcelona, Spain
| | - Victor Sans
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
| | - Andrés F Gualdrón-Reyes
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
- Facultad de Ciencias, Instituto de Ciencias Químicas, Universidad Austral de Chile, Isla Teja, Valdivia, 5090000, Chile
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Castellón, Spain.
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Patil AB, Chaudhary PL, Adhyapak PV. Carbon dots-cadmium sulfide quantum dots nanocomposite for 'on-off' fluorescence sensing of chromium(vi) ions. RSC Adv 2024; 14:12923-12934. [PMID: 38650690 PMCID: PMC11033546 DOI: 10.1039/d4ra00436a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/15/2024] [Indexed: 04/25/2024] Open
Abstract
This work involves fluorescent probe which is composed of carbon dots (CD) and cadmium sulfide quantum dots (CdS QD) for the sensitive and selective fluorescence detection of chromium(vi) ions. The blue fluorescent carbon dots were synthesized by hydrothermal method from natural precursor apricot. The carbon dots-cadmium sulfide quantum dots (CD-CdS QD) nanocomposite was synthesized and all as-synthesized products were characterized using different characterization techniques. It showed white fluorescence under UV light which was quenched selectively in the presence of chromium(vi) ions due to the inner filter effect (IFE). The linear decrease in the white fluorescence was observed in the concentration range 2-120 μM of chromium(vi) ions with the limit of detection 2.07 μM. This is novel probe for the sensitive, selective and rapid detection of chromium(vi) ions.
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Affiliation(s)
- Anisha B Patil
- Centre for Materials for Electronics Technology (C-MET), (Scientific Society, Ministry of Electronics & Information Technology (MeitY), Govt. of India) Panchawati, off Pashan Road Pune 411008 India +91-20-25898180 +91-20-25899273
| | - Pooja L Chaudhary
- Centre for Materials for Electronics Technology (C-MET), (Scientific Society, Ministry of Electronics & Information Technology (MeitY), Govt. of India) Panchawati, off Pashan Road Pune 411008 India +91-20-25898180 +91-20-25899273
| | - Parag V Adhyapak
- Centre for Materials for Electronics Technology (C-MET), (Scientific Society, Ministry of Electronics & Information Technology (MeitY), Govt. of India) Panchawati, off Pashan Road Pune 411008 India +91-20-25898180 +91-20-25899273
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Zhu J, Li X. Ratio-fluorescent and naked-eye visualized dual-channel sensing strategy for Cu 2+ and alkaline phosphatase activity assay. ANAL SCI 2024; 40:471-480. [PMID: 38127250 DOI: 10.1007/s44211-023-00479-2] [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: 08/31/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023]
Abstract
The levels of Cu2+ and alkaline phosphatase (ALP) are the important indicators of the developed stage of the relative diseases. Herein, a binary ratio-fluorescent and smartphone-assisted visual strategy basing on 4'-aminomethyl-4, 5', 8-trimethylpsoralen (AMT) and the oxidation of o-phenylenediamine was developed. Under the action of Cu2+, the fluorescent molecule, 3-diaminophenazine (DAP) formed which can act as a fluorescent acceptor of the ratio-fluorescent sensor. The emission spectrum of AMT overlapped with the excitation spectrum of DAP and, thus, it can act as the fluorescent donor of the ratio-fluorescent sensor. With the increasing concentration of Cu2+ and ALP, the fluorescent intensity of AMT decreased and the fluorescent intensity of DAP increased. The dual-emission reverse change ratio-fluorescent sensor realized the sensitive detection Cu2+ and ALP with the detection limits of 2 nM and 0.03 U/mL, respectively. In addition, the acceptable recoveries were obtained when the Cu2+ and ALP in spiked samples were detected. Furthermore, the relative activity of ALP was assessed by increasing the concentrations of the inhibitor Na3VO4 and IC50 of 25 μM was obtained. Importantly, the target concentration-dependent color change of DAP allowed us to utilize R/B ratio values to design the smartphone-assisting visual detection model of Cu2+ and ALP activity with the detection limits of 0.1 μM and 0.18 U/mL. This simple, flexible, dual-mode sensor strategy has a potential for disease diagnosis and drug screening.
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Affiliation(s)
- Jing Zhu
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu Shandong, 273165, People's Republic of China.
| | - Xinyu Li
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu Shandong, 273165, People's Republic of China
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Al-Jaf SH, Omer KM. Dual-spot ratiometric microfluidic paper-based analytical device for accuracy and precision improvement. Talanta 2024; 269:125433. [PMID: 38008019 DOI: 10.1016/j.talanta.2023.125433] [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: 07/03/2023] [Revised: 11/09/2023] [Accepted: 11/16/2023] [Indexed: 11/28/2023]
Abstract
Instrumental and environmental fluctuations are common sources of error in smartphone-based optical detection, significantly affecting the accuracy of analytical measurements. In this regard, spotting the sample and reference simultaneously and in close proximity compensates for the fluctuations. This "dual-spot" design is similar to the double-beam technique used in spectrophotometry, which reduces fluctuations in the results. The underlying hypothesis is that any instrumental and/or environmental factors influencing the color intensity in the detection zones will similarly impact the color intensity in the control zone under the same conditions. To test our design, a ratiometric microfluidic paper-based analytical device (μPAD), functionalized with a mixture of green-emissive carbon dots (CDs) and red-emissive ethidium bromide, was developed for the selective detection of ascorbic acid (AA). The green emission of the CDs is quenched by both AA and Fe3+; NaF was thus loaded onto the 3D connector as a masking agent to remove the interference effect of the Fe3+ ions. The color variations were monitored under a UV lamp, using a smartphone to capture the images, and the RGB intensities were processed using the Color Grab application. The proposed double-spot method greatly enhanced the analytical precision and accuracy of the device. A linear working range from 0 to 125 μM was obtained, and the limit of detection was 2.71 μM. The μPAD was successfully used for the detection of AA in human serum, with recoveries from 87.27 to 98.52 %.
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Affiliation(s)
- Sabah H Al-Jaf
- Department of Chemistry, College of Science, University of Sulaimani, 46002, Sulaimani City, Kurdistan Region, Iraq; Department of Chemistry, College of Science, University of Garmian, Darbandikhan Road, 46021, Kalar City, Sulaimaniyah Province, Kurdistan of Iraq, Iraq
| | - Khalid M Omer
- Department of Chemistry, College of Science, University of Sulaimani, 46002, Sulaimani City, Kurdistan Region, Iraq.
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Wu Y, Zuo C, Mou Y, Wang H, Hou Y, Su X, Jia Z, Qiu H. One step synthesis of highly photoluminescent red light-emitting carbon dots from O-phenylenediamine and 2,4-diaminophenol as fluorescent probes for the detection of pH and Cr(VI). ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5607-5619. [PMID: 37850478 DOI: 10.1039/d3ay01323e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
In this study, new red light-emitting carbon dots (R-CDs) that can selectively recognize Cr(VI) were prepared using a strategy that utilizes 2,4-diaminophenol to enhance the fluorescence of O-phenylenediamine based carbon dots. The results showed that 2,4-diaminophenol increased the quantum yield (QY) of the carbon quantum dots (CDs), and that the QY of the CDs increased from their original value of 8.7% to 20.1% (R-CDs). The R-CDs show sensitivity to acidic conditions and maintain good linearity between pH = 1.00-4.00, making them useful as pH probes. Furthermore, the prepared R-CDs possess good solubility in water and are responsive to changes in Cr(VI) concentrations in aqueous environments. The quenching of the R-CDs fluorescence was linearly correlated with the Cr(VI) concentration within a range of 0-20 μM, with a lower detection limit of 66 nM. The detection mechanism is attributed to the formation of hydrogen bonds between Cr(VI) and the R-CDs, resulting in the fluorescence quenching of the R-CDs. The R-CDs can be considered effective multifunctional fluorescent probes for both pH and Cr(VI) in aqueous environments. This study will provide new R-CD design strategies for probes that selectively identify specific target substances.
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Affiliation(s)
- Yan Wu
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Chengwei Zuo
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Yujie Mou
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Hao Wang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Yongrui Hou
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Xiaodong Su
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Zhenfu Jia
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Huidong Qiu
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
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Deng Y, Huang S, Li J, Zhou Y, Qian J. Yellow Carbon Dots for Fluorescent Water Sensing, Relative Humidity Sensing, and Anticounterfeiting Applications. J Fluoresc 2023; 33:2273-2280. [PMID: 37017894 DOI: 10.1007/s10895-023-03214-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 03/16/2023] [Indexed: 04/06/2023]
Abstract
Most fluorescent probes based on carbon dots (CDs) fluorescence color or intensity change are still used for detection in solution, but in practical fluorescence detection applications, detection in the solid state is necessary. Therefore, a CDs-based fluorescence sensing device is designed in this paper, which can be used for water detection in liquid and solid states. Using oPD as a single precursor, yellow fluorescent CDs (y-CDs) were prepared by hydrothermal method, which can be used in the field of water detection and anti-counterfeiting by using its solvent-sensitive properties. First, y-CDs can be used to visually and intelligently detect the water content in ethanol. Secondly, it can be used to detect the Relative Humidity (RH) of the environment by combining it with cellulose to form a fluorescent film. Finally, y-CDs can also be used as a fluorescent material for fluorescence anti-counterfeiting.
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Affiliation(s)
- Yafeng Deng
- School of Electronics and Information Engineering, Jingchu University of Technology, Jingmen, 448000, Hubei, China
| | - Shaoyun Huang
- School of Electronics and Information Engineering, Jingchu University of Technology, Jingmen, 448000, Hubei, China
| | - Jinli Li
- School of Electronics and Information Engineering, Jingchu University of Technology, Jingmen, 448000, Hubei, China
| | - Yihua Zhou
- Research Center of Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430079, Hubei, China
| | - Jun Qian
- Research Center of Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430079, Hubei, China.
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Li J, Tan R, Bian X, Ge Z, Li J, Li Z, Liao L, Yang L, Zhang R, Zhou P. Design of carbon dots for bioimaging and behavior regulation of stem cells. Nanomedicine (Lond) 2023; 18:1109-1134. [PMID: 37610118 DOI: 10.2217/nnm-2023-0005] [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] [Indexed: 08/24/2023] Open
Abstract
Carbon dots (CDs) have been widely used in bioimaging, biosensing and biotherapy because of their good biocompatibility, optical properties and stability. In this review, we comprehensively summarize the research on CDs in terms of synthesis methods, optical properties and biotoxicity. We describe and envisage the directions for CDs application in stem cell imaging and differentiation, with the aim of stimulating the design of future related CDs. We used 'carbon dots', 'stem cells', 'cell imaging', 'cell differentiation' and 'fate control' as keywords to search for important articles. The Web of Science database was used to extract vital information from a total of 357 papers, 126 review articles and 231 article proceedings within 12 years (2011-2022).
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Affiliation(s)
- Jing Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Rongshuang Tan
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Xueru Bian
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Zhangjie Ge
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Jiamin Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Zhihui Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Lingzi Liao
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Ling Yang
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Rui Zhang
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Ping Zhou
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
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Patel S, Shrivas K, Sinha D, Karbhal I, Patle TK. A portable smartphone-assisted digital image fluorimetry for analysis of methiocarb pesticide in vegetables: Nitrogen-doped carbon quantum dots as a sensing probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122824. [PMID: 37192578 DOI: 10.1016/j.saa.2023.122824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/21/2023] [Accepted: 05/03/2023] [Indexed: 05/18/2023]
Abstract
The increasing use of pesticides in the agriculture fields strengthen the crop production to meet the needs of increasing population. The residues in water and food materials cause several health hazards. Herein, nitrogen-doped carbon quantum dot (N-CQDs) is designed for determination of methiocarb pesticide in vegetables by fluorescent paper sensor and compared the results with fluorimetry. The fluorescent paper-based detection is performed by recording the change in fluorescence of N-CQDs with introduction of methiocarb using smartphone and ImageJ software. Good linear range was acquired for analysis of methiocarb from 10 to 1000 μgL-1 with a low detection limit (LOD) of 3.5 μgL-1 in fluorimetry; and 700-10,000 μgL-1 with a LOD of 500 μgL-1 in fluorescent paper sensor. A better recovery from 92.0 to 95.4% illustrating the selectivity of both methods for analysis of methiocarb in vegetables. Thus, the advantage of using N-CQDs as a fluorescent sensor for analysis of methiocarb in vegetables is instrument free, portable and user-friendly.
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Affiliation(s)
- Sanyukta Patel
- Department of Chemistry, Government Nagarjuna Post Graduate College of Science, Raipur, CG 492010, India
| | - Kamlesh Shrivas
- School of Studies in Chemistry, Pt. Ravishanakar Shukla University, Raipur 492010, CG, India.
| | - Deepak Sinha
- Department of Chemistry, Government Nagarjuna Post Graduate College of Science, Raipur, CG 492010, India.
| | - Indrapal Karbhal
- School of Studies in Chemistry, Pt. Ravishanakar Shukla University, Raipur 492010, CG, India
| | - Tarun Kumar Patle
- Department of Chemistry, Pt. Sundarlal Sharma Open University, Bilaspur 495009, Chhattisgarh, India
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Arcudi F, Đorđević L. Supramolecular Chemistry of Carbon-Based Dots Offers Widespread Opportunities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300906. [PMID: 37078923 DOI: 10.1002/smll.202300906] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/01/2023] [Indexed: 05/03/2023]
Abstract
Carbon dots are an emerging class of nanomaterials that has recently attracted considerable attention for applications that span from biomedicine to energy. These photoluminescent carbon nanoparticles are defined by characteristic sizes of <10 nm, a carbon-based core and various functional groups at their surface. Although the surface groups are widely used to establish non-covalent bonds (through electrostatic interactions, coordinative bonds, and hydrogen bonds) with various other (bio)molecules and polymers, the carbonaceous core could also establish non-covalent bonds (ππ stacking or hydrophobic interactions) with π-extended or apolar compounds. The surface functional groups, in addition, can be modified by various post-synthetic chemical procedures to fine-tune the supramolecular interactions. Our contribution categorizes and analyzes the interactions that are commonly used to engineer carbon dots-based materials and discusses how they have allowed preparation of functional assemblies and architectures used for sensing, (bio)imaging, therapeutic applications, catalysis, and devices. Using non-covalent interactions as a bottom-up approach to prepare carbon dots-based assemblies and composites can exploit the unique features of supramolecular chemistry, which include adaptability, tunability, and stimuli-responsiveness due to the dynamic nature of the non-covalent interactions. It is expected that focusing on the various supramolecular possibilities will influence the future development of this class of nanomaterials.
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Affiliation(s)
- Francesca Arcudi
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, Padova, 35131, Italy
| | - Luka Đorđević
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, Padova, 35131, Italy
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Yang CR, Lin YS, Wu RS, Lin CJ, Chu HW, Huang CC, Anand A, Unnikrishnan B, Chang HT. Dual-emissive carbonized polymer dots for the ratiometric fluorescence imaging of singlet oxygen in living cells. J Colloid Interface Sci 2023; 634:575-585. [PMID: 36549206 DOI: 10.1016/j.jcis.2022.12.076] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/06/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
Singlet oxygen (1O2) is a type of reactive oxygen species (ROS), playing a vital role in the physiological and pathophysiological processes. Specific probes for monitoring intracellular 1O2 still remain challenging. In this study, we develop a ratiometric fluorescent probe for the real-time intracellular detection of 1O2 using o-phenylenediamine-derived carbonized polymer dots (o-PD CPDs). The o-PD CPDs possessing dual-excitation-emission properties (blue and yellow fluorescence) were successfully synthesized in a two-phase system (water/acetonitrile) using an ionic liquid tetrabutylammonium hexafluorophosphate as a supporting electrolyte through the electrolysis of o-PD. The o-PD CPDs can act as a photosensitizer to produce 1O2 upon white LED irradiation, in turn, the generated 1O2 selectively quenches the yellow emission of the o-PD CPDs. This quenching behavior is ascribed to the specific cycloaddition reaction between 1O2 and alkene groups in the polymer scaffolds on o-PD CPDs. The interior carbon core can be a reliable internal standard since its blue fluorescence intensity remains unchanged in the presence of 1O2. The ratiometric response of o-PD CPDs is selective toward 1O2 against other ROS species. The developed o-PD CPDs have been successfully applied to monitor the 1O2 level in the intracellular environment. Furthermore, in the inflammatory neutrophil cell model, o-PD CPDs can also detect the 1O2 and other ROS species such as hypochlorous acid after phorbol 12-myristate 13-acetate (PMA)-induced inflammation. Through the dual-channel fluorescence imaging, the ratiometric response of o-PD CPDs shows great potential for detecting endogenous and stimulating 1O2in vivo.
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Affiliation(s)
- Cheng-Ruei Yang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Syuan Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ren-Siang Wu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chin-Jung Lin
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202301, Taiwan
| | - Han-Wei Chu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202301, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 202301, Taiwan; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Anisha Anand
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202301, Taiwan
| | - Binesh Unnikrishnan
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202301, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
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12
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Pizzoferrato R, Bisauriya R, Antonaroli S, Cabibbo M, Moro AJ. Colorimetric and Fluorescent Sensing of Copper Ions in Water through o-Phenylenediamine-Derived Carbon Dots. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23063029. [PMID: 36991739 PMCID: PMC10056730 DOI: 10.3390/s23063029] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 06/12/2023]
Abstract
Fluorescent nitrogen and sulfur co-doped carbon dots (NSCDs) were synthesized using a simple one-step hydrothermal method starting from o-phenylenediamine (OPD) and ammonium sulfide. The prepared NSCDs presented a selective dual optical response to Cu(II) in water through the arising of an absorption band at 660 nm and simultaneous fluorescence enhancement at 564 nm. The first effect was attributed to formation of cuprammonium complexes through coordination with amino functional groups of NSCDs. Alternatively, fluorescence enhancement can be explained by the oxidation of residual OPD bound to NSCDs. Both absorbance and fluorescence showed a linear increase with an increase of Cu(II) concentration in the range 1-100 µM, with the lowest detection limit of 100 nM and 1 µM, respectively. NSCDs were successfully incorporated in a hydrogel agarose matrix for easier handling and application to sensing. The formation of cuprammonium complexes was strongly hampered in an agarose matrix while oxidation of OPD was still effective. As a result, color variations could be perceived both under white light and UV light for concentrations as low as 10 µM. Since these color changes were similarly perceived in tap and lake water samples, the present method could be a promising candidate for simple, cost-effective visual monitoring of copper onsite.
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Affiliation(s)
- Roberto Pizzoferrato
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy;
| | - Ramanand Bisauriya
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy;
| | - Simonetta Antonaroli
- Department of Chemical Sciences and Technology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Marcello Cabibbo
- Department of Industrial Engineering and Mathematical Sciences (DIISM), Università Politecnica Delle Marche, 60131 Ancona, Italy
| | - Artur J. Moro
- LAQV-REQUIMTE, Departamento de Química, CQFB, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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13
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Selective and sensitive electrochemical detection of doxorubicin via a novel magnesium oxide/carbon dot nanocomposite based sensor. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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14
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Yang F, Dias ACP, Zhang X. Monoclonal antibody based immunoassay: An alternative way for aquatic environmental selenium detection. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159909. [PMID: 36336056 DOI: 10.1016/j.scitotenv.2022.159909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 06/16/2023]
Abstract
Environmental concerns about human health encouraged increasing methodological interest in selenium (Se), which is an essential non-metal trace element and varies within a narrow concentration range between essential and toxic. In this study, two types of long-armed Se haptens (Se-hapten-lc-NHS) were synthesized for the first time using active ester formalization. In producing monoclonal antibodies (mAbs), the derivatization of haptenized Se at para- (meta-) and ortho-sites showed different properties. Finally, a mAb derived from hybridoma 5A52 was confirmed to be capable of establishing an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA). There was a successful quantitative determination of Se4+ with a detection range of 17 to 207 pmol mL-1 and a limit of detection of approximately 3.9 pmol mL-1. The mAb was found to be remarkably sensitive and specific, with no evidence of cross-reactivity with other ions. The assay was validated for four kinds of Se forms in water samples and showed satisfactory recoveries between 80 % and 108 %, with coefficients of variation of 2.1 %-11 %. The method proposed in our study offers a useful protocol for the rapid screening of Se and provides an alternative solution for the analysis of Se in aquatic environments.
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Affiliation(s)
- Fanfan Yang
- Centre of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Alberto C P Dias
- Centre of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Xiaoying Zhang
- Centre of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; Chinese-German Joint Institute for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China.
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15
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Lim JM, Supianto M, Kim TY, Kim BS, Park JW, Jang HH, Lee HJ. Fluorescent Lateral Flow Assay with Carbon Nanodot Conjugates for Carcinoembryonic Antigen. BIOCHIP JOURNAL 2023. [DOI: 10.1007/s13206-022-00093-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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16
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The preparation, optical properties and applications of carbon dots derived from phenylenediamine. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Ye C, Yu M, Wang Z. Fabrication of sulfur quantum dots via a bottom-up strategy and its application for enhanced fluorescence monitoring of o-phenylenediamine. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Bisht K, Kumar G, Dutta RK. Amine-Functionalized Crystalline Carbon Nanodots Decorated on Bi 2WO 6 Nanoplates as Solar Photocatalysts for Efficient Degradation of Tetracycline and Ciprofloxacin. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Krishanan Bisht
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee247667, India
| | - Gandharve Kumar
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee247667, India
| | - Raj Kumar Dutta
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee247667, India
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee247667, India
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19
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Carbon dots as potential greener and sustainable fluorescent nanomaterials in service of pollutants sensing. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Kanwal A, Bibi N, Hyder S, Muhammad A, Ren H, Liu J, Lei Z. Recent advances in green carbon dots (2015-2022): synthesis, metal ion sensing, and biological applications. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1068-1107. [PMID: 36262178 PMCID: PMC9551278 DOI: 10.3762/bjnano.13.93] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 09/14/2022] [Indexed: 06/08/2023]
Abstract
Carbon dots (CDs) show extensive potential in various fields such as sensing, bioimaging, catalysis, medicine, optoelectronics, and drug delivery due to their unique properties, that is, low cytotoxicity, cytocompatibility, water-solubility, multicolor wavelength tuned emission, photo-stability, easy modification, strong chemical inertness, etc. This review article especially focuses on the recent advancement (2015-2022) in the green synthesis of CDs, their application in metal ions sensing and microbial bioimaging, detection, and viability studies as well as their applications in pathogenic control and plant growth promotion.
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Affiliation(s)
- Aisha Kanwal
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, 710119, China
| | - Naheed Bibi
- Department of Chemistry, Shaheed Benazir Bhutto Women University, Charsadda Road, Larama, Peshawar, Pakistan
| | - Sajjad Hyder
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Arif Muhammad
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, 710119, China
| | - Hao Ren
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, 710119, China
| | - Jiangtao Liu
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, 712046, China
| | - Zhongli Lei
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, 710119, China
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21
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Yi H, Liu J, Yao J, Wang R, Shi W, Lu C. Photoluminescence Mechanism of Carbon Dots: Triggering Multiple Color Emissions through Controlling the Degree of Protonation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196517. [PMID: 36235054 PMCID: PMC9571308 DOI: 10.3390/molecules27196517] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/05/2022]
Abstract
Carbon dots (CDs) have excellent optical properties, low toxicity and easy preparation, which have led to them being widely used in biomedicine, sensing and optical devices. However, although great progress has been made in the preparation of CDs, the detailed exploration of their photoluminescence (PL) mechanism is still under debate due to their complex structures and surface functionalities. Here, we proposed a single change in the pH of the synthesis condition, which had no effect on the CDs intrinsic core states and avoided the mutual influence of multiple PL origins. The m-phenylenediamine (m–PD) served as a carbon source, whose protonation degree determined the surface state of the resulting CDs and the accompanying fluorescence characteristics. The as-obtained CDs materials can be applied in the chemical sensor and anti-counterfeiting fields in a targeted manner. Therefore, our work not only contributes to the explanation of the CDs PL mechanism, but also obtains a series of CDs materials with controllable PL properties.
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22
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Vedernikova AA, Miruschenko MD, Arefina IA, Babaev AA, Stepanidenko EA, Cherevkov SA, Spiridonov IG, Danilov DV, Koroleva AV, Zhizhin EV, Ushakova EV. Dual-Purpose Sensing Nanoprobe Based on Carbon Dots from o-Phenylenediamine: pH and Solvent Polarity Measurement. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193314. [PMID: 36234443 PMCID: PMC9565920 DOI: 10.3390/nano12193314] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/17/2022] [Accepted: 09/20/2022] [Indexed: 05/14/2023]
Abstract
Today, the development of nanomaterials with sensing properties attracts much scientific interest because of the demand for low-cost nontoxic colloidal nanoprobes with high sensitivity and selectivity for various biomedical and environment-related applications. Carbon dots (CDs) are promising candidates for these applications as they demonstrate unique optical properties with intense emissions, biocompatibility, and ease of fabrication. Herein, we developed synthesis protocols to obtain CDs based on o-phenylenediamine with a variety of optical responses depending on additional precursors and changes in the reaction media. The obtained CDs are N-doped (N,S-doped in case of thiourea addition) less than 10 nm spherical particles with emissions observed in the 300−600 nm spectral region depending on their chemical composition. These CDs may act simultaneously as absorptive/fluorescent sensing probes for solvent polarity with ∆S/∆ENT up to 85, for ∆ENT from 0.099 to 1.0 and for pH values in the range of 3.0−8.0, thus opening an opportunity to check the pH in non-pure water or a mixture of solvents. Moreover, CDs preserve their optical properties when embedded in cellulose strips that can be used as sensing probes for fast and easy pH checks. We believe that the resulting dual-purpose sensing nano probes based on CDs will have high demand in various sensing applications.
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Affiliation(s)
- Anna A. Vedernikova
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Mikhail D. Miruschenko
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Irina A. Arefina
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Anton A. Babaev
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Evgeniia A. Stepanidenko
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Sergei A. Cherevkov
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Igor G. Spiridonov
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
| | - Denis V. Danilov
- Research Park, Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | | | - Evgeniy V. Zhizhin
- Research Park, Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Elena V. Ushakova
- International Research and Education Centre for Physics of Nanostructures, ITMO University, 197101 Saint Petersburg, Russia
- Correspondence:
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23
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Jadhav RW, Khobrekar PP, Bugde ST, Bhosale SV. Nanoarchitectonics of neomycin-derived fluorescent carbon dots for selective detection of Fe 3+ ions. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3289-3298. [PMID: 35968579 DOI: 10.1039/d2ay01040b] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The first-ever neomycin antibiotic-based carbon dots (Neo-CDs) were synthesized via a low-cost, eco-friendly, and single-step hydrothermal method using neomycin as a single precursor. The as-prepared Neo-CDs exhibited strong and stable blue fluorescence and were well characterized by TEM, UV-vis absorption, fluorescence emission, IR, XRD, Raman and XPS spectroscopy methods. The Neo-CDs showed a well-distributed size within the range of 4.5 to 7.8 nm, comprising various functional groups on the surface of the carbon core. The Neo-CDs exhibited exceptional emission behaviour, and fluorescence quantum yield was calculated to be 55% in double distilled water. Neo-CDs have been used as a fluorescent sensor for selective and sensitive detection of Fe3+ ions in aqueous solution in the fluorescence turn-off mode. From the set of metal ions, only the Fe3+ ion showed quenching of fluorescence due to photoinduced (PET) electron transfer from Neo-CDs to the half-filled 3d orbital of Fe3+ ions. The limit of detection for Fe3+ ions was calculated to be 0.854 μM. Further, the quenching efficiency and Stern-Volmer quenching constant have been calculated which are about 94% and 5.6 × 106 M-1, respectively.
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Affiliation(s)
- Ratan W Jadhav
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Pritesh P Khobrekar
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Sandesh T Bugde
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Sheshanath V Bhosale
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
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24
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Tang Y, Huang C, Tang H, Guo M. Nitrogen-doped carbonized polymer dots activated by alkalinity of arginine for multicolor multi-platform sensor. Colloids Surf B Biointerfaces 2022; 216:112517. [PMID: 35569255 DOI: 10.1016/j.colsurfb.2022.112517] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 04/17/2022] [Accepted: 04/21/2022] [Indexed: 10/18/2022]
Abstract
Among carbon-based materials, carbon dots (CDs) are popular because of their stable optical properties and good biocompatibility. Their fluorescence properties often are tailored by size, surface modification, or heteroatom doping with multiple precursors. In this paper, the alkalinity of Arginine (Arg) acts as an activator to promote carbonation and increase luminescence efficiency. Meanwhile, Arg acts as a tetrahedron and plays another three roles in preparing amino-modified nitrogen-doped carbonized polymer dots (SA-NCPDs), in which Arg serves as carbon source, nitrogen-doped nitrogen source, and surface modifier. The NCPDs based only on arginine display narrow full width at half maximum (FWHM) of 54 nm. The SA-NCPDs present dual emission distribution in the UV and visible blue regions, respectively. The SA-NCPDs present multicolor emission, especially crimson emission in water under 77 K in different solvents. Besides, SA-NCPDs in different solvents and the prepared polyvinyl alcohol (PVA) composite film have different phosphorescence and long afterglow at 77 K. The excellent biocompatibility and stability of the SA-NCPDs imply it is a potential material in biomedicine. In addition, a multiplatform multicolor ratiometric sensor and visualized colorimetric sensor with high selectivity were constructed successfully for detecting Cu2+, H2O2, and OPD based on self-absorption.
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Affiliation(s)
- Yuran Tang
- Chemical Institute of Chemical Industry, Southwest University, Chongqing 400715, China
| | - Chuan Huang
- Chemical Institute of Chemical Industry, Southwest University, Chongqing 400715, China
| | - Huang Tang
- Chemical Institute of Chemical Industry, Southwest University, Chongqing 400715, China
| | - Mingming Guo
- Chemical Institute of Chemical Industry, Southwest University, Chongqing 400715, China.
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25
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Na LP, Li M, La YT, Dong WK. A novel fluorometric and colorimetric dual-channel single-armed salamo-like chemosensor for the fast, reversible and simultaneous detection of Fe3+ and Cu2+ ions. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120932] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Zhu X, Han L, Liu H, Sun B. A smartphone-based ratiometric fluorescent sensing system for on-site detection of pyrethroids by using blue-green dual-emission carbon dots. Food Chem 2022; 379:132154. [DOI: 10.1016/j.foodchem.2022.132154] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 12/11/2021] [Accepted: 01/11/2022] [Indexed: 12/26/2022]
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27
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Zhang Y, Zhu X, Li M, Liu H, Sun B. Temperature-Responsive Covalent Organic Framework-Encapsulated Carbon Dot-Based Sensing Platform for Pyrethroid Detection via Fluorescence Response and Smartphone Readout. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:6059-6071. [PMID: 35543319 DOI: 10.1021/acs.jafc.2c01568] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this paper, carbon dot (CD)-encapsulated 1,3,5-tris(4-formylphenyl)benzene (TFB)/2,5-dihydroxyterephthalohydrazide (DHTH) covalent organic frameworks (TDCOFs) grafted with thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) (CDs@TDCOFs@PNIPAM) were fabricated for the detection of pyrethroids. CDs@TDCOFs@PNIPAM achieved a temperature-responsive "on/off" detection of pyrethroids based on the target-triggered electron-transfer mechanism. The detection limit of pyrethroids was as low as 0.69 μg/L in the wide linear range of 5-400 μg/L (R2 > 0.9523). Simultaneously, CDs@TDCOFs@PNIPAM with red, green, and blue (RGB) fluorescence emissions were integrated with a smartphone-assisted device, enabling the visual smart quantitative detection of pyrethroids with a detection limit of 4.875 μg/L. Ultimately, agricultural products were chosen as actual samples to verify the applicability of both recognition modes, and the calculated recovery rate was 105.48-113.40%. Accordingly, CDs@TDCOFs@PNIPAM featuring temperature-responsive switching behavior and RGB fluorescence emission provided a promising analytical strategy for ensuring agricultural and food safety.
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Affiliation(s)
- Ying Zhang
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Xuecheng Zhu
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Mingjian Li
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Huilin Liu
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Baoguo Sun
- Beijing Technology and Business University (BTBU), No. 11 Fucheng Road, Beijing 100048, People's Republic of China
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28
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Biomass-derived carbon dots as a sensitive and selective dual detection platform for fluoroquinolones and tetracyclines. Anal Bioanal Chem 2022; 414:4935-4951. [PMID: 35579676 DOI: 10.1007/s00216-022-04119-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/04/2022] [Indexed: 01/24/2023]
Abstract
A novel carbon dot (CD) was synthesized through the facile and simple hydrothermal method from Curcuma amada, as the precursor for the first time. These CDs with an average diameter of 4.6 nm display blue fluorescence, with excitation/emission maxima at 360/445 nm and a quantum yield of 14.1%. It exhibited high stability under different conditions and was characterized using various techniques. These CDs can be employed as a dual-sensing platform to detect tetracyclines and fluoroquinolones, two antibiotic classes. Even though antibiotics are regarded as an inevitable commodity, overuse and improper management of discarded antibiotics pose a severe threat to the environment. Herein, we developed a dual-sensing, biocompatible sensor with high selectivity and sensitivity to detect antibiotics. CD was employed as a fluorescence probe and detected tetracycline and fluoroquinolone antibiotic through inner filter effect-based fluorescence quenching and hydrogen bonding-based enhancement process, respectively. The linear range was 0-16 μM and the detection limit was 33 nM for tetracycline and 2 nM for fluoroquinolone antibiotic. As an electrochemical probe, CD selectively detected tetracycline with a lower detection limit of 0.5 nM over a linear range of 0-16 μM. Using both methods, a real sample analysis of the developed sensor exhibited accurate reliability and precision.
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29
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Tuning the Sensing Properties of N and S Co-Doped Carbon Dots for Colorimetric Detection of Copper and Cobalt in Water. SENSORS 2022; 22:s22072487. [PMID: 35408102 PMCID: PMC9003535 DOI: 10.3390/s22072487] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 01/05/2023]
Abstract
In this study, nitrogen and sulfur co-doped carbon dots (NS-CDs) were investigated for the detection of heavy metals in water through absorption-based colorimetric response. NS-CDs were synthesized by a simple one-pot hydrothermal method and characterized by TEM, STEM-coupled with energy dispersive X-ray analysis, NMR, and IR spectroscopy. Addition of Cu(II) ions to NS-CD aqueous solutions gave origin to a distinct absorption band at 660 nm which was attributed to the formation of cuprammonium complexes through coordination with amino functional groups of NS-CDs. Absorbance increased linearly with Cu(II) concentration in the range 1–100 µM and enabled a limit of detection of 200 nM. No response was observed with the other tested metals, including Fe(III) which, however, appreciably decreased sensitivity to copper. Increase of pH of the NS-CD solution up to 9.5 greatly reduced this interference effect and enhanced the response to Cu(II), thus confirming the different nature of the two interactions. In addition, a concurrent response to Co(II) appeared in a different spectral region, thus suggesting the possibility of dual-species multiple sensitivity. The present method neither requires any other reagents nor any previous assay treatment and thus can be a promising candidate for low-cost monitoring of copper onsite and by unskilled personnel.
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Green Synthesis of Nitrogen–Doped Carbon Dots from Fresh Tea Leaves for Selective Fe3+ Ions Detection and Cellular Imaging. NANOMATERIALS 2022; 12:nano12060986. [PMID: 35335799 PMCID: PMC8955450 DOI: 10.3390/nano12060986] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 12/15/2022]
Abstract
In this research, we successfully developed a green, economical and effective one–step hydrothermal method for the synthesis of fluorescent nitrogen–doped carbon dots (N–CDs) by utilizing fresh tea leaves and urea as the carbon and nitrogen sources, respectively. The obtained N–CDs were characterized by TEM, XPS and FT–IR. We found that the N–CDs were near–spherical with an average size of about 2.32 nm, and contained abundant oxygen and nitrogen functional groups. The N–CDs exhibited bright blue fluorescence under ultraviolet illumination, with the maximum emission at 455 nm. Meanwhile, the as–prepared N–CDs could be selectively quenched by Fe3+ ions. The quenching of N–CDs is linearly correlated with the concentration of Fe3+ in the range of 0.1–400 μM with a low detection limit of 0.079 μM. Significantly, the N–CDs present excellent biocompatibility and high photostability. The results also depict that multicolor fluorescence is displayed under a fluorescence microscope and successfully applied for the detection of intracellular Fe3+. To sum up, the fluorescent N–CDs are expected to be a sensitive detection probe for Fe3+ in biological systems.
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Carbon dots as Reactive Nitrogen Species nanosensors. Anal Chim Acta 2022; 1202:339654. [DOI: 10.1016/j.aca.2022.339654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 11/15/2022]
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On-site, rapid, and facile determination of gentamicin using a fluorescent resonance energy transfer sensor constructed from nitrogen-carbon quantum dots functionalized by 4,5-imidazole dicarboxylic acid. Food Chem 2022; 371:131366. [PMID: 34808770 DOI: 10.1016/j.foodchem.2021.131366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 09/15/2021] [Accepted: 10/07/2021] [Indexed: 11/22/2022]
Abstract
In this paper, NC QDs were obtained from agricultural waste (wheat straw), functionalized by 4,5-imidazole dicarboxylic acid and used to detect gentamicin in aqueous solution. The NC QDs were characterized by HRTEM, XPS, UV-Vis, etc. The fluorescence properties of the functionalized NC QDs for GEN detection were studied at λem = 385 nm. The fluorescence intensity showed a good linear relationship with the GEN concentration of samples (I = 343.10 + 30.07C, R2 = 0.9896) for GEN concentrations ranging from 0 to 2.9 × 10-4 mol/L. The sensing mechanism was found to be fluorescence resonance energy transfer (FRET) between the functionalized NC QDs and GEN. The results indicated that the method had good repeatability for GEN detection. The technology could be extended to biological detection.
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Mohammadi S, Salimi A, Hoseinkhani Z, Ghasemi F, Mansouri K. Carbon dots hybrid for dual fluorescent detection of microRNA-21 integrated bioimaging of MCF-7 using a microfluidic platform. J Nanobiotechnology 2022; 20:73. [PMID: 35135571 PMCID: PMC8822830 DOI: 10.1186/s12951-022-01274-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/17/2022] [Indexed: 01/09/2023] Open
Abstract
Background MicroRNAs have short sequences of 20 ~ 25-nucleotides which are similar among family members and play crucial regulatory roles in numerous biological processes, such as in cell development, metabolism, proliferation, differentiation, and apoptosis. Results We reported a strategy for the construction of a dual-emission fluorescent sensor using carbon dots (CDs) and confirmed their applications for ratiometric microRNA-21 sensing and bioimaging of cancer cells in a microfluidic device. The composition of blue CDs (B-CDs) and yellow CDs (Y-CDs) depicts dual-emission behavior which is centered at 409 and 543 nm under an excitation wavelength of 360 nm. With increasing microRNA-21 concentration, the robust and specific binding of DNA probe functionalized B-CDs to complementary microRNA-21 target induced perturbations of probe structure and led to changing fluorescence intensity in both wavelengths. Consequently, the ratio of turn-on signal to turn-off signal is greatly altered. With monitoring of the inherent ratiometric fluorescence variation (ΔF540nm/ΔF410nm), as-prepared BY-CDs were established as an efficient platform for ratiometric fluorescent microRNA-21 sensing, with a wide linear range of 0.15 fM to 2.46 pM and a detection limit of 50 aM. Conclusions Furthermore, the proposed assay was applied for detecting microRNA-21 in dilute human serum samples with satisfactory recovery and also in MCF-7 cell lines in the range 3000 to 45,000 (cell mL−1) with a detection limit (3 cells in 10 μL), demonstrating the potential of the assay for clinic diagnosis of microRNA-associated disease. More importantly, the images revealed that MCF-7 cells well labeled with BY-CDs could exhibit the applicability of the proposed microfluidic system as an effective cell trapping device in bioimaging. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01274-3.
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Affiliation(s)
- Somayeh Mohammadi
- Department of Chemistry, University of Kurdistan, 66177-15175, Sanandaj, Iran
| | - Abdollah Salimi
- Department of Chemistry, University of Kurdistan, 66177-15175, Sanandaj, Iran. .,Research Center for Nanotechnology, University of Kurdistan, 66177-15175, Sanandaj, Iran.
| | - Zohreh Hoseinkhani
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Foad Ghasemi
- Nanoscale Physics Device Lab (NPDL), Department of Physics, University of Kurdistan, 66177-15275, Sanandaj, Iran
| | - Kamran Mansouri
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Development of Fluorescent Carbon Nanoparticle-Based Probes for Intracellular pH and Hypochlorite Sensing. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10020064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Acid-base and redox reactions are important mechanisms that affect the optical properties of fluorescent probes. Fluorescent carbon nanoparticles (CNPs) that possess tailored surface functionality enable a prompt response to regional stimuli, offering a useful platform for detection, sensing, and imaging. In this study, mPA CNPs were developed through one-pot hydrothermal reaction as a novel fluorescent probe (quantum yield = 10%) for pH and hypochlorite sensing. m-Phenylenediamine was chosen as the major component of CNPs for pH and hypochlorite responsiveness. Meanwhile, ascorbic acid with many oxygen-containing groups was introduced to generate favorable functionalities for improved water solubility and enhanced sensing response. Thus, the mPA CNPs could serve as a pH probe and a turn-off sensor toward hypochlorite at neutral pH through fluorescence change. The as-prepared mPA CNPs exhibited a linear fluorescence response over the pH ranges from pH 5.5 to 8.5 (R2 = 0.989), and over the concentration range of 0.125–1.25 μM for hypochlorite (R2 = 0.985). The detection limit (LOD) of hypochlorite was calculated to be 0.029 μM at neutral pH. The mPA CNPs were further applied to the cell imaging. The positively charged surface and nanoscale dimension of the mPA CNPs lead to their efficient intracellular delivery. The mPA CNPs were also successfully used for cell imaging and sensitive detection of hypochlorite as well as pH changes in biological systems. Given these desirable performances, the as-synthesized fluorescent mPA CNPs shows great potential as an optical probe for real-time pH and hypochlorite monitoring in living cells.
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Gao X, Ma Z, Sun M, Liu X, Zhong K, Tang L, Li X, Li J. A highly sensitive ratiometric fluorescent sensor for copper ions and cadmium ions in scallops based on nitrogen doped graphene quantum dots cooperating with gold nanoclusters. Food Chem 2022; 369:130964. [PMID: 34479006 DOI: 10.1016/j.foodchem.2021.130964] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 08/07/2021] [Accepted: 08/13/2021] [Indexed: 12/27/2022]
Abstract
Based on the electrostatic interaction, we constructed a ratiometric fluorescence nanomixture of graphene quantum dots-gold nanoclusters (GQDs-AuNCs) for the quantitative detection of Cu2+ and Cd2+. When Cu2+ or Cd2+ was added into the reaction system, the fluorescence of GSH-AuNCs at 565 nm can be quenched by Cu2+ and enhanced by Cd2+ while the intensity of N-GQDs at 403 nm stayed constant. Under the optimized conditions, the fluorescence intensity ratio (I565/I403) of the GQDs-AuNCs system was proportional to the concentration of Cu2+ and Cd2+ in the range of 8×10-8 mol/L-6×10-6 mol/L and 1×10-6 mol/L-4×10-5 mol/L, respectively, with detection limits of 4.12×10-9 mol/L and 9.43×10-7 mol/L, respectively. In the presence of Cu2+ and Cd2+, the paper-based vision sensor would produce visible fluorescent color changes, which can be used for rapid detection on site. The method has been successfully applied to the determination of Cu2+ and Cd2+ in scallops with satisfactory results.
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Affiliation(s)
- Xue Gao
- 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, Food Safety Key Lab of Liaoning Province, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, China
| | - Zhiying Ma
- 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, Food Safety Key Lab of Liaoning Province, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, China
| | - Minjun Sun
- 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, Food Safety Key Lab of Liaoning Province, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, China
| | - Xiuying Liu
- 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, Food Safety Key Lab of Liaoning Province, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, China
| | - Keli Zhong
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning 121013, China
| | - Lijun Tang
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning 121013, China
| | - Xuepeng 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, Food Safety Key Lab of Liaoning Province, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, 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, Food Safety Key Lab of Liaoning Province, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, China.
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Lin YS, Yang ZY, Anand A, Huang CC, Chang HT. Carbon dots with polarity-tunable characteristics for the selective detection of sodium copper chlorophyllin and copper ions. Anal Chim Acta 2022; 1191:339311. [PMID: 35033242 DOI: 10.1016/j.aca.2021.339311] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 11/18/2021] [Indexed: 11/28/2022]
Abstract
Compared to water-soluble carbon dots (CDs) the properties and applications of hydrophobic CDs are rarely addressed. In this study, a one-pot, simple chemical oxidation approach has been applied to synthesize hydrophobic carbon dots (TO-CDs) at room temperature from triolein (TO) in concentrated sulfuric acid solution. Sodium copper chlorophyllin (SCC) quenches the fluorescence of TO-CDs by a photoinduced electron transfer process. Upon excitation at 400 nm, the fluorescence intensity of TO-CDs probe at 500 nm shows a linear response against the SCC concentration ranging from 1.0 to 10 μM, with a limit of detection (LOD) of 0.61 μM. Quantitation of SCC in flavored drinks shows percentage recovery (%R) vaues of 98-103% and relative standard deviation (RSD) values less than 6.5%. The hydrophobic TO-CDs can be converted into hydrophilic TO-CDs through hydrolysis in NaOH solution. The presence of sulfonyl groups on the hydrophilic TO-CDs enhances the coordination ability of the CDs toward Cu2+ ions, leading to fluorescence quenching which allows for the detection of Cu2+ ions with LOD of 0.21 μM and a linear range of 0.5-10 μM. The hydrophilic TO-CD probe possesses high selectivity toward Cu2+ ions (tolerance at least ten-fold comparative to other metal ions). The assay has been validated with the analysis of spiked soil samples, with %R values of Cu concentration of 97.8-99.0% and RSDs below 2.0%. The surface tunable CD probes demonstrate their potential for the rapid screening of Cu2+ ions in environmental samples and SCC in foods.
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Affiliation(s)
- Yu-Syuan Lin
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
| | - Zong-Yu Yang
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
| | - Anisha Anand
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, 20224, Taiwan; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan.
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Fan P, Liu C, Hu C, Li F, Lin X, Xiao F, Liang H, Li L, Yang S. Orange-emissive N,S-co-doped carbon dots for label-free and sensitive fluorescence assay of vitamin B 12. NEW J CHEM 2022. [DOI: 10.1039/d1nj04706j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
N,S-CDs with orange fluorescent emission were synthesized via a hydrothermal method using o-phenylenediamine and thiourea. A novel fluorometric method for the determination of VB12 based on the IFE was established.
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Affiliation(s)
- Pengfei Fan
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Can Liu
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Congcong Hu
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Feifei Li
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Xi Lin
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Fubing Xiao
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Hao Liang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Le Li
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Shengyuan Yang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
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Chang X, Zhao G, Liu C, Wang X, Abdulkhaleq AMA, Zhang J, Zhou X. One-step microwave synthesis of red-emissive carbon dots for cell imaging in extreme acidity and light emitting diodes. RSC Adv 2022; 12:28021-28033. [PMID: 36320228 PMCID: PMC9524442 DOI: 10.1039/d2ra04026c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/26/2022] [Indexed: 11/21/2022] Open
Abstract
Red emissive carbon dots (R-CDs) have received great attention in biological fields due to their deep tissue penetrability, great bioimaging capability, low interference from auto-fluorescence, and potential for optoelectronic applications. Herein, excitation-independent, highly acid-sensitive R-CDs were successfully obtained via one-step microwave treatment of o-phenylenediamine (o-PD) and phosphoric acid and carefully purified by column chromatography. The relationship between the fluorescence emission and surface groups of the R-CDs was studied in detail using XPS, NMR, and fluorescence spectroscopy, and the different mechanisms of action of the R-CDs and acid in H2O and ethanol were determined. The excellent anti-interference ability and biocompatibility of the R-CDs were confirmed, and the probes were successfully used for imaging A549 and Escherichia coli (E. coli) cells in extreme acidity. Finally, based on their relatively high quantum yield and long wavelength emission, the application potential of the R-CDs in the fabrication of red light-emitting diodes (LEDs) was investigated. Highly acid-sensitive R-CDs were obtained via a microwave method. The relationship between the FL emission and the surface groups of the R-CDs was studied in detail. The R-CDs were used for cell imaging in extreme acidity and fabrication of red LEDs.![]()
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Affiliation(s)
- Xiaojie Chang
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | - Guizhi Zhao
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | - Chang Liu
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | - Xueshi Wang
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | | | - Jie Zhang
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | - Xibin Zhou
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
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Xu H, Liu X, Wang R, Gao S, Hou F, Liang K, Luo S. A yellow-emitting carbon quantum dot-based fluorescent logic gate for the continuous detection of Au 3+ and biothiols. Chem Commun (Camb) 2021; 57:11549-11552. [PMID: 34664573 DOI: 10.1039/d1cc04935f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Yellow-emitting carbon quantum dots, named Y-CQDs, were synthesized from O-phenylenediamine and ethylene glycol via a one-pot hydrothermal method. A fluorescent IMPLICATION logic gate for the continuous and "on-off-on" detection of Au3+ and biothiols in tap water at the nanoscale level was constructed based on these QDs. It showed promise in real sample detection and also as a fluorescent ink.
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Affiliation(s)
- Hui Xu
- School of Science and Engineering, Huzhou College, Huzhou 313000, China.
| | - Xuerui Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Ruru Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Shanmin Gao
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Faju Hou
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Kaiyi Liang
- Radiology Department of Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Key Laboratory of Shanghai Municipal Health Commission for Smart Image, Shanghai 201318, China
| | - Shihua Luo
- Department of Traumatology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China.
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40
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Zhao N, Song J, Huang Z, Yang X, Wang Y, Zhao L. Ratiometric fluorescence probe of Cu 2+ and biothiols by using carbon dots and copper nanoclusters. RSC Adv 2021; 11:33662-33674. [PMID: 35497542 PMCID: PMC9042249 DOI: 10.1039/d1ra05854a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/08/2021] [Indexed: 12/13/2022] Open
Abstract
A novel dual-emission ratiometric fluorescent probe based on N-doped yellow fluorescent carbon dots (y-CDs) and blue fluorescent copper nanoclusters (CuNCs) was established for quantitative determination of Cu2+ and biothiols. In this work, the Cu2+-(y-CDs) complexes formed by the chelation of y-CDs with Cu2+, showed an absorption peak at 430 nm that not only enhanced the fluorescence of y-CDs through inhibiting photoinduced electron transfer (PET) but also effectively quenched the fluorescence of CuNCs due to Förster resonance energy transfer (FRET). In addition, the chelation of y-CDs with Cu2+ could be inhibited by biothiols that prevented the fluorescence of y-CDs from being enhanced and the fluorescence of CuNCs from being quenched. On account of the changes of ratiometric signal, a dual-emission fluorescence probe for Cu2+ and biothiols determination was achieved. The proposed method exhibited high sensitivity for Cu2+ and biothiols in the ranges of 0.5-100 μM and 0.8-50 μM and the limits of detection (LODs) of Cu2+, glutathione (GSH), cysteine (Cys) and homocysteine (Hcy) were 0.21 μM, 0.33 μM, 0.39 μM and 0.46 μM, respectively. Subsequently, the established strategy presented an application prospect for the detection of Cu2+ and biothiols in real samples.
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Affiliation(s)
- Ning Zhao
- School of Pharmacy, Shenyang Pharmaceutical University 103 Wenhua Road Shenhe District Shenyang Liaoning 110016 P. R. China +86-24-4352-0571 +86-24-4352-0571
| | - Jianqiang Song
- School of Pharmacy, Shenyang Pharmaceutical University 103 Wenhua Road Shenhe District Shenyang Liaoning 110016 P. R. China +86-24-4352-0571 +86-24-4352-0571
| | - Zheng Huang
- School of Pharmacy, Shenyang Pharmaceutical University 103 Wenhua Road Shenhe District Shenyang Liaoning 110016 P. R. China +86-24-4352-0571 +86-24-4352-0571
| | - Xiuying Yang
- Hainan Vocational University of Science and Technology, Key Laboratory of Medicinal and Edible Plants Resources of Hainan Province Haikou Hainan 571126 China
| | - Yousheng Wang
- Hainan Vocational University of Science and Technology, Key Laboratory of Medicinal and Edible Plants Resources of Hainan Province Haikou Hainan 571126 China
| | - Longshan Zhao
- School of Pharmacy, Shenyang Pharmaceutical University 103 Wenhua Road Shenhe District Shenyang Liaoning 110016 P. R. China +86-24-4352-0571 +86-24-4352-0571
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Li X, Bao Y, Dong X, Shi L, Shuang S. Dual-excitation and dual-emission carbon dots for Fe 3+ detection, temperature sensing, and lysosome targeting. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4246-4255. [PMID: 34591950 DOI: 10.1039/d1ay01165k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dual-excitation and dual-emission carbon dots (CDs) have been prepared by simple one-step hydrothermal treatment of p-phenylenediamine and 5-aminosalicylic acid. The as-prepared CDs emit bright green fluorescence under excitation at 320-400 nm and bright orange fluorescence under excitation at 490-560 nm. Interestingly, the CDs can be employed as a dual-excitation and dual-emission fluorescent probe for Fe3+ detection in aqueous solution and living cells. Furthermore, the obtained CDs can function as a promising dual-excitation and dual-emission temperature sensor. Additionally, the CDs can be utilized for lysosomal targeting.
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Affiliation(s)
- Xiaofeng Li
- Taiyuan University, Taiyuan 030012, PR China
| | - Yuejing Bao
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Xiaorui Dong
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Lihong Shi
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Shaomin Shuang
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
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42
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Synthesized carbon dots with high N and S content as excellent corrosion inhibitors for copper in sulfuric acid solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116702] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bera MK, Behera L, Mohapatra S. A fluorescence turn-down-up detection of Cu2+ and pesticide quinalphos using carbon quantum dot integrated UiO-66-NH2. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126792] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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44
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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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Zhang L, Sun H, Zhao J, Lee J, Ee Low L, Gong L, Chen Y, Wang N, Zhu C, Lin P, Liang Z, Wei M, Ling D, Li F. Dynamic nanoassemblies for imaging and therapy of neurological disorders. Adv Drug Deliv Rev 2021; 175:113832. [PMID: 34146626 DOI: 10.1016/j.addr.2021.113832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/07/2021] [Accepted: 06/11/2021] [Indexed: 02/07/2023]
Abstract
The past decades have witnessed an increased incidence of neurological disorders (NDs) such as Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, ischemic stroke, and epilepsy, which significantly lower patients' life quality and increase the economic and social burden. Recently, nanomedicines composed of imaging and/or therapeutic agents have been explored to diagnose and/or treat NDs due to their enhanced bioavailability, blood-brain barrier (BBB) permeability, and targeting capacity. Intriguingly, dynamic nanoassemblies self-assembled from functional nanoparticles to simultaneously interfere with multiple pathogenic substances and pathological changes, have been regarded as one of the foremost candidates to improve the diagnostic and therapeutic efficacy of NDs. To help readers better understand this emerging field, in this review, the pathogenic mechanism of different types of NDs is briefly introduced, then the functional nanoparticles used as building blocks in the construction of dynamic nanoassemblies for NDs theranostics are summarized. Furthermore, dynamic nanoassemblies that can actively cross the BBB to target brain lesions, sensitively and efficiently diagnose or treat NDs, and effectively promote neuroregeneration are highlighted. Finally, we conclude with our perspectives on the future development in this field.
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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: 47] [Impact Index Per Article: 15.7] [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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Wu M, Wang N, Lin Z, Su X. Development of carbon dot-thiochrome-based sensing system for ratiometric fluorescence detection of D-penicillamine. Anal Bioanal Chem 2021; 413:5779-5787. [PMID: 34312692 DOI: 10.1007/s00216-021-03552-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/01/2021] [Accepted: 07/14/2021] [Indexed: 11/26/2022]
Abstract
A simple and rapid ratiometric fluorescent sensing system for D-penicillamine (D-PA) determination is developed based on yellow carbon dots (Y-CDs) combined with thiochrome (oxVB1) for the first time. The oxidization of thiamine (VB1) can be catalyzed by Alkaline-hydrolyzed artemisinin (a-ART) to form oxVB1, which leads to the occurrence of fluorescence emission peak at 466 nm. Furthermore, the oxidation reaction between a-ART and VB1 could be inhibited by D-PA, and accompanied with the decrease of fluorescence at 466 nm. However, the fluorescence peak of Y-CDs as an internal reference at 566 nm was almost unchanged. The ratiometric signal changes contributed to a robust and sensitive D-PA sensing. Under the optimal condition, a good linear response for the D-PA detection was obtained in the ranges of 0.5-50 μM with a detection limit of 0.33 μM. In addition, Y-CDs and thiochrome-based sensing system was applied to D-PA determination in real samples and obtained acceptable results. We developed a new carbon dots/thiochrome fluorescent nanoprobe for ratiometric fluorescence sensing of D-penicillamine.
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Affiliation(s)
- Maolin Wu
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China
- College of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, PR China
| | - Nan Wang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Zihan Lin
- College of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, PR China
| | - Xingguang Su
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China.
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Li P, Sun XY, Shen JS. A Multi-Catalytic Sensing for Hydrogen Peroxide, Glucose, and Organophosphorus Pesticides Based on Carbon Dots. Front Chem 2021; 9:713104. [PMID: 34395382 PMCID: PMC8362664 DOI: 10.3389/fchem.2021.713104] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/18/2021] [Indexed: 11/13/2022] Open
Abstract
In this work, a facile one-pot hydrothermal route was employed to synthesize a series of fluorescent carbon dots (CDs) by using 20 natural amino acids, respectively, as the starting materials. It was found that the CDs synthesized using phenylalanine could possess the intrinsic peroxidase-like activity that could effectively catalyze a traditional peroxidase substrate like 3, 3', 5, 5'- tetramethylbenzidine (TMB) in the presence of H2O2 to produce a blue solution; thereby, a catalytic sensing system for H2O2 has been developed. On the basis of this catalytic reaction, together with the fact that glucose oxidase (GOx) can catalyze the hydrolysis of glucose to generate H2O2, a sensitive catalytic sensing system for glucose could be further established. Furthermore, based on this catalytic reaction, taken together with the two enzymatic catalytic systems of acetylcholinesterase (AChE) and choline oxidase (CHO), a highly sensitive multi-catalytic sensing system could be successfully developed for organophosphorus (OPs) pesticides such as dimethoate, DDVP, and parathion-methyl. Limit of detections (LODs) of H2O2 and glucose were estimated to be 6.5 and 0.84 μM, respectively. The limit of detection of the sub-nM level could be obtained for tested dimethoate, DDVP, and parathion-methyl OPs pesticides. The established sensing systems can exhibit good practical application performance in serum and several fruit samples.
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Affiliation(s)
- Ping Li
- Fujian Provincial Key Laboratory of Featured Biochemical and Chemical Materials, Fujian Province University Key Laboratory of Green Energy and Environment Catalysis, College of Chemistry and Materials, Ningde Normal University, Ningde, China
- College of Materials Science and Engineering, Huaqiao University, Xiamen, China
| | - Xiang-Ying Sun
- College of Materials Science and Engineering, Huaqiao University, Xiamen, China
| | - Jiang-Shan Shen
- College of Materials Science and Engineering, Huaqiao University, Xiamen, China
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Khan S, Dunphy A, Anike MS, Belperain S, Patel K, Chiu NHL, Jia Z. Recent Advances in Carbon Nanodots: A Promising Nanomaterial for Biomedical Applications. Int J Mol Sci 2021; 22:6786. [PMID: 34202631 PMCID: PMC8269108 DOI: 10.3390/ijms22136786] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/17/2021] [Accepted: 06/17/2021] [Indexed: 02/06/2023] Open
Abstract
Carbon nanodots (CNDs) are an emerging class of nanomaterials and have generated much interest in the field of biomedicine by way of unique properties, such as superior biocompatibility, stability, excellent photoluminescence, simple green synthesis, and easy surface modification. CNDs have been featured in a host of applications, including bioimaging, biosensing, and therapy. In this review, we summarize the latest research progress of CNDs and discuss key advances in our comprehension of CNDs and their potential as biomedical tools. We highlighted the recent developments in the understanding of the functional tailoring of CNDs by modifying dopants and surface molecules, which have yielded a deeper understanding of their antioxidant behavior and mechanisms of action. The increasing amount of in vitro research regarding CNDs has also spawned interest in in vivo practices. Chief among them, we discuss the emergence of research analyzing CNDs as useful therapeutic agents in various disease states. Each subject is debated with reflection on future studies that may further our grasp of CNDs.
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Affiliation(s)
- Safeera Khan
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC 27412, USA; (S.K.); (A.D.); (M.S.A.); (S.B.); (K.P.)
| | - Andrew Dunphy
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC 27412, USA; (S.K.); (A.D.); (M.S.A.); (S.B.); (K.P.)
| | - Mmesoma S. Anike
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC 27412, USA; (S.K.); (A.D.); (M.S.A.); (S.B.); (K.P.)
| | - Sarah Belperain
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC 27412, USA; (S.K.); (A.D.); (M.S.A.); (S.B.); (K.P.)
| | - Kamal Patel
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC 27412, USA; (S.K.); (A.D.); (M.S.A.); (S.B.); (K.P.)
| | - Norman H. L. Chiu
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27412, USA;
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC 27401, USA
| | - Zhenquan Jia
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC 27412, USA; (S.K.); (A.D.); (M.S.A.); (S.B.); (K.P.)
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Zhu X, Yuan X, Han L, Liu H, Sun B. A smartphone-integrated optosensing platform based on red-emission carbon dots for real-time detection of pyrethroids. Biosens Bioelectron 2021; 191:113460. [PMID: 34186303 DOI: 10.1016/j.bios.2021.113460] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/01/2021] [Accepted: 06/05/2021] [Indexed: 01/09/2023]
Abstract
This report described the development of an optosensing platform based on red-emission carbon dots (RCDs) integrated with a smartphone application that, together, can detect pyrethroids in real time. Based on the high stability and selectivity of molecular imprinting technology, RCDs-based optosensing imprinted polymers was obtained by using a one-pot inverse microemulsion surface imprinting method. Lambda-cyhalothrin (LC), which is a pyrethroid pesticide, can interact with the widely distributed -NH2 groups on the surface of the RCD-based optosensing nanomaterials to achieve fixed-point adsorption. The quantitative detection of pyrethroids in a wide concentration range (1-120 μg/L) could be achieved, and the limit of detection (LOD) was 0.89 μg/L. Furthermore, a portable UV light box combined with a smartphone was used to convert the change in fluorescence of the RCDs-based optosensing nanomaterials into specific values upon adding pyrethroids, and the LOD by using smartphone was 6.66 μg/L. The developed platform has numerous advantages, including low cost, simple operation, high sensitivity, and good specificity, among others, and it achieves on-site visualization and rapid detection.
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Affiliation(s)
- Xuecheng Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, 11 Fucheng Road, Beijing, 100048, China
| | - Xinyue Yuan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, 11 Fucheng Road, Beijing, 100048, China
| | - Luxuan Han
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, 11 Fucheng Road, Beijing, 100048, China
| | - Huilin Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, 11 Fucheng Road, Beijing, 100048, China.
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, 11 Fucheng Road, Beijing, 100048, China
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