1
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Nazar M, Hasan M, Wirjosentono B, Gani BA, Nada CE. Microwave Synthesis of Carbon Quantum Dots from Arabica Coffee Ground for Fluorescence Detection of Fe 3+, Pb 2+, and Cr 3. ACS OMEGA 2024; 9:20571-20581. [PMID: 38737012 PMCID: PMC11079894 DOI: 10.1021/acsomega.4c02254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 05/14/2024]
Abstract
In this study, carbon quantum dots (CQDs), which were synthesized from arabica coffee ground-derived activated carbon, have been successfully employed as a fluorescence sensor to detect Fe3+ ions. CQDs were fabricated using microwave heating for 5-10 min, which emitted vibrant blue light at 455 nm when exposed to excitation at 365 nm. Dynamic light scattering (DLS) analysis revealed that the average size of CQDs was 10.12 nm with a quantum yield of 6.01%. Fluorescence detection was developed for sensing Fe3+, Pb2+, and Cr3+ ions. The addition of the three metal ions resulted in a decrease in the fluorescence (FL) intensity of the CQDs, with the addition of Fe3+ ions demonstrating a more significant decrease in FL compared to the addition of both Cr3+ and Pb2+ ions. The results indicated that the CQDs synthesized from activated carbon of arabica coffee waste performed as a selective fluorescent detector for Fe3+ ions, with a detection limit of 0.27 μM.
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Affiliation(s)
- Muhammad Nazar
- Graduate
School of Mathematics and Applied Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Department
of Chemistry Education, Universitas Syiah
Kuala, Kopelma Darussalam, Banda Aceh 23111, Indonesia
| | - Muhammad Hasan
- Department
of Chemistry Education, Universitas Syiah
Kuala, Kopelma Darussalam, Banda Aceh 23111, Indonesia
| | | | - Basri A. Gani
- Department
of Oral Biology, Dentistry Faculty, Universitas
Syiah Kuala, Darussalam, Banda Aceh 23111, Indonesia
| | - Cut Elvira Nada
- Department
of Chemistry Education, Universitas Syiah
Kuala, Kopelma Darussalam, Banda Aceh 23111, Indonesia
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2
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Jeong G, Kim T, Park SD, Yoo MJ, Park CH, Yang H. N, S-Codoped Carbon Dots-Based Reusable Solvatochromic Organogel Sensors for Detecting Organic Solvents. Macromol Rapid Commun 2024; 45:e2300542. [PMID: 38014607 DOI: 10.1002/marc.202300542] [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: 09/08/2023] [Revised: 11/20/2023] [Indexed: 11/29/2023]
Abstract
The visualization and analysis of organic solvents using fluorescent sensors are crucial, given their association with environmental safety and human health. Conventional fluorescent sensors are typically single-use sensors and they often require sophisticated measurement instruments, which limits their practical and diverse applications. Herein, we develop solvatochromic nitrogen and sulfur codoped carbon dots (NS-CDs)-based organogel sensors that display color changes in response to different solvents. NS-CDs are synthesized using a solvothermal method to produce monodispersed particles with exceptional solubility in various organic solvents. NS-CDs exhibit distinct photoluminescent emission spectra that correlate with the solvent polarity, and the solvent-dependent photoluminescent mechanism is investigated in detail. To highlight the potential application of solvatochromic NS-CDs, portable and low-cost NS-CDs-embedded organogel sensors are fabricated. These sensors exhibit highly robust solvatochromic performance despite repeated solvent switches, thus ensuring consistent and reliable measurements in practical applications. This study provides valuable insights into the solvatochromism of carbon dots and opens up new avenues for designing real-time organic solvent sensing platforms.
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Affiliation(s)
- Gwajeong Jeong
- Electronic Convergence Materials and Device Research Center, Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do, 13509, Republic of Korea
| | - Taewook Kim
- Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Seong Dae Park
- Electronic Convergence Materials and Device Research Center, Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do, 13509, Republic of Korea
| | - Myong Jae Yoo
- Electronic Convergence Materials and Device Research Center, Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do, 13509, Republic of Korea
| | - Chan Ho Park
- Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Hyunseung Yang
- Electronic Convergence Materials and Device Research Center, Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do, 13509, Republic of Korea
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3
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Dubey P. An overview on animal/human biomass-derived carbon dots for optical sensing and bioimaging applications. RSC Adv 2023; 13:35088-35126. [PMID: 38046631 PMCID: PMC10690874 DOI: 10.1039/d3ra06976a] [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: 10/13/2023] [Accepted: 11/15/2023] [Indexed: 12/05/2023] Open
Abstract
Over the past decade, carbon dots (CDs) have emerged as some of the extremely popular carbon nanostructures for diverse applications. The advantages of sustainable CDs, characterized by their exceptional photoluminescence (PL), high water solubility/dispersibility, non-toxicity, and biocompatibility, substantiate their potential for a wide range of applications in sensing and biology. Moreover, nature offers plant- and animal-derived precursors for the sustainable synthesis of CDs and their doped variants. These sources are not only readily accessible, inexpensive, and renewable but are also environmentally benign green biomass. This review article presents in detail the production of sustainable CDs from various animal and human biomass through bottom-up synthetic methods, including hydrothermal, microwave, microwave-hydrothermal, and pyrolysis methods. The resulting CDs exhibit a uniform size distribution, possibility of heteroatom doping, surface passivation, and remarkable excitation wavelength-dependent/independent emission and up-conversion PL characteristics. Consequently, these CDs have been successfully utilized in multiple applications, such as bioimaging and the detection of various analytes, including heavy metal ions. Finally, a comprehensive assessment is presented, highlighting the prospects and challenges associated with animal/human biomass-derived CDs for multifaceted applications.
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Affiliation(s)
- Prashant Dubey
- Centre of Material Sciences, Institute of Interdisciplinary Studies (IIDS), University of Allahabad Prayagraj-211002 Uttar Pradesh India
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4
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Lu D, Lu K, Wen HT, Wei Z, Bianco A, Wang GG, Zhang HY. Synthesis of Visible Light Excitable Carbon Dot Phosphor-Al 2 O 3 Hybrids for Anti-Counterfeiting and Information Encryption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207046. [PMID: 36960674 DOI: 10.1002/smll.202207046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 02/21/2023] [Indexed: 06/18/2023]
Abstract
The preparation of room temperature phosphorescent carbon dots still faces great challenges, especially in the case of carbon dots endowed of visible-light excitable room temperature phosphorescence (RTP). To date, a limited number of substrates have been exploited to synthesize room temperature phosphorescent carbon dots, and most of them can emit RTP only in solid state. Here, the synthesis of a composite obtained from the calcination of green carbon dots (g-CDs) blended with aluminum hydroxide (Al(OH)3 ) is reported. The resultant hybrid material g-CDs@Al2 O3 exhibits blue fluorescence and green RTP emissions in an on/off switch process at 365 nm. Notably, this composite manifests strong resistance to extreme acid and basic conditions up to 30 days of treatment. The dense structure of Al2 O3 formed by calcination contributes to the phosphorescent emission of g-CDs. Surprisingly, g-CDs@Al2 O3 can also emit yellow RTP under irradiation with white light. The multicolor emissions can be employed for anti-counterfeiting and information encryption. This work provides a straightforward approach to produce room temperature phosphorescent carbon dots for a wide range of applications.
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Affiliation(s)
- Dong Lu
- Shenzhen Key Laboratory for Advanced Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, P. R. China
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, ISIS, Strasbourg, 67000, France
| | - Ke Lu
- School of Advanced Materials, Shenzhen Graduate School, Peking University, Shenzhen, 518055, P. R. China
| | - Hong-Tao Wen
- Shenzhen Key Laboratory for Advanced Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, P. R. China
| | - Zhan Wei
- Shenzhen Key Laboratory for Advanced Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, P. R. China
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, ISIS, Strasbourg, 67000, France
| | - Gui-Gen Wang
- Shenzhen Key Laboratory for Advanced Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, P. R. China
| | - Hua-Yu Zhang
- Shenzhen Key Laboratory for Advanced Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, P. R. China
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5
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High-Quality Conjugated Polymers Achieving Ultra-Trace Detection of Cr2O72− in Agricultural Products. Molecules 2022; 27:molecules27134294. [PMID: 35807539 PMCID: PMC9268218 DOI: 10.3390/molecules27134294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 11/17/2022] Open
Abstract
In view of that conjugated polymers (CPs) are an attractive option for constructing high-sensitive Cr2O72− sensors but suffer from lacking a general design strategy, we first proposed a rational structure design of CPs to tailor their sensing properties while validating the structure-to-performance correlation. Short side chains decorated with N and O atoms as recognition groups were instructed into fluorene to obtain monomers Fmoc-Ala-OH and Fmoc-Thr-OH. Additionally, their polymers P(Fmoc-Ala-OH) and P(Fmoc-Thr-OH) were obtained through electrochemical polymerization. P(Fmoc-Ala-OH) and P(Fmoc-Thr-OH) with high polymerization degrees have an excellent selectivity towards Cr2O72− in comparison to other cations and anions. Additionally, their limit of detection could achieve 1.98 fM and 3.72 fM, respectively. Especially, they could realize the trace detection of Cr2O72− in agricultural products (red bean, black bean, and millet). All these results indicate that short side chains decorated with N and O atoms functionalizing polyfluorene enables the ultra-trace detection of Cr2O72−. Additionally, the design strategy will spark new ideas for the construction of highly selective and sensitive Cr2O72− sensors.
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6
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Peng J, Yuan H, Ren T, Liu Z, Qiao J, Ma Q, Guo X, Ma G, Wu Y. Fluorescent nanocellulose-based hydrogel incorporating titanate nanofibers for sorption and detection of Cr(VI). Int J Biol Macromol 2022; 215:625-634. [PMID: 35772640 DOI: 10.1016/j.ijbiomac.2022.06.148] [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: 04/03/2022] [Revised: 06/13/2022] [Accepted: 06/22/2022] [Indexed: 12/15/2022]
Abstract
Chromium pollution is a major environmental concern; thus, effective and multifunctional adsorbents for removing the Cr(VI) ion are urgently needed. A fluorescent nanocellulose-based hydrogel (FNH) incorporating titanate nanofibers (TNs) was developed for the sorption and detection of Cr(VI) ion. The chemical and physical structures of the hydrogels, as well as their sorption and detection properties, were studied. The predicted maximum adsorption capacity and the lowest detection limit of FNH were 648.4 mg/g and 0.039 μg/L, respectively. Furthermore, the sorption and detection mechanisms of FNH were discussed in detail. These results showed that the excellent sorption and detection might be mainly attributed to the three-dimensional (3D) porous structure constructed by TNs and cellulose nanocrystals modified with carbon dots, which improved the sorption ability and provided the rapid visual response to Cr(VI). Furthermore, cost analysis showed that FNH was cheaper than activated carbon in removing the Cr(VI) ion. This work established a facile technique in developing low-cost and multifunctional adsorbents.
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Affiliation(s)
- Junwen Peng
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China; College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Hanmeng Yuan
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Tingting Ren
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zhihuan Liu
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jianzheng Qiao
- College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qiang Ma
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xin Guo
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Guoxin Ma
- School of Computer and Control Engineering, Yantai University, Yantai, Shandong 264005, China.
| | - Yiqiang Wu
- College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
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7
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Bhatt S, Vyas G, Paul P. Solvent Assisted Synthesis of Nitrogen and Sulfur Doped Blue and Yellow Emissive Carbon Dots and Their Applications as a Selective Cr(VI) Sensor and Patterning Agent. ChemistrySelect 2022. [DOI: 10.1002/slct.202200242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shreya Bhatt
- Analytical and Environmental Science Division & Centralized Instrument Facility CSIR-Central Salt and Marine Chemicals Research Institute G. B. Marg Bhavnagar 364002 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Gaurav Vyas
- Analytical and Environmental Science Division & Centralized Instrument Facility CSIR-Central Salt and Marine Chemicals Research Institute G. B. Marg Bhavnagar 364002 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Parimal Paul
- Analytical and Environmental Science Division & Centralized Instrument Facility CSIR-Central Salt and Marine Chemicals Research Institute G. B. Marg Bhavnagar 364002 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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8
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Bhatt S, Vyas G, Paul P. Microwave-assisted synthesis of nitrogen-doped carbon dots using prickly pear as the carbon source and its application as a highly selective sensor for Cr(VI) and as a patterning agent. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:269-277. [PMID: 34985051 DOI: 10.1039/d1ay01274f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Preparation of water-dispersible carbon dots from inexpensive natural carbon precursors and its application for purposes such as sensing, bio-imaging and patterning agents is showing growing interest in recent years. In this study, we have reported the preparation of nitrogen-doped carbon dots (N-CDs) using prickly pear as the carbon source and m-xylylenediamine as the nitrogen source using a one-step microwave-assisted synthetic process. The N-CDs prepared were characterized on the basis of elemental analysis, XPS, powder-XRD, FT-IR, Raman, TEM, UV-vis and fluorescence spectroscopy. Doping of nitrogen in the N-CDs made them highly fluorescent and the study on their ion-recognition property revealed that they detect highly toxic Cr(VI) with high selectivity and sensitivity (LOD, 0.04 μM) and without interference from the other ions used in this study. By immobilizing these N-CDs onto filter paper, sensor strips were prepared for on-site monitoring/field applications and they were successfully used for the detection of Cr(VI) in water. Detailed spectral analysis revealed that the mechanism of Cr(VI) sensing involved a phenomenon called the "inner filter effect" and analysis of the fluorescence lifetime data suggested the "static quenching" of fluorescence intensity. These N-CDs were used to prepare fluorescent carbon ink and were successfully used as patterning agents.
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Affiliation(s)
- Shreya Bhatt
- Analytical and Environmental Science Division, Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Gaurav Vyas
- Analytical and Environmental Science Division, Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Parimal Paul
- Analytical and Environmental Science Division, Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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9
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Ji Y, Zou X, Wang W, Wang T, Zhang S, Gong Z. Co-Doped S, N-Carbon dots and its fluorescent film sensors for rapid detection of Cr (VI) and Ascorbic acid. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106284] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Zheng X, Ren S, Wang L, Gai Q, Dong Q, Liu W. Controllable functionalization of carbon dots as fluorescent sensors for independent Cr(Ⅵ), Fe(Ⅲ) and Cu(Ⅱ) ions detection. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113359] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Synthesis, Characterization and Ecotoxicity Evaluation of Biochar-Derived Carbon Dots from Spruce Tree, Purple Moor-Grass and African Oil Palm. Processes (Basel) 2021. [DOI: 10.3390/pr9071095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Biochar-derived C-Dots from Picea, Molinia caerulea and Elaeis guineensis were synthesized through a hydrothermal process, and their physicochemical and optical characteristics and environmental effects were compared. These C-Dots were characterized by techniques such as Attenuated Total Reflection–Fourier Transform Infrared (ATR-FTIR), UV-Vis spectrophotometry, fluorescence spectroscopy, dynamic light scattering (DLS), Z potential, and High-Resolution Transmission Electronical Microscopy (HR-TEM). The ecotoxicity tests were performed using the Microtox™ test, making this study one of the few that use this method. The C-Dots from Molinia caerulea showed the best quantum yield (QY) of 8.39% and moderate ecotoxicity, while Elaeis guineensis has the lowest QY (2.31%) but with zero toxicity. Furthermore, the C-Dots from Picea presents good optical properties but showed high toxicity and limits its use. Finally, all C-Dots showed functional groups that could be biofunctionalized with biomolecules, especially C-Dots from Molinia caerulea and Elaeis guineensis show potential for use in the development of optical biosensors.
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12
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Sekar A, Yadav R, Basavaraj N. Fluorescence quenching mechanism and the application of green carbon nanodots in the detection of heavy metal ions: a review. NEW J CHEM 2021. [DOI: 10.1039/d0nj04878j] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This review article highlights the quenching mechanism and applications of green CNDs for the detection of metal ions.
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Affiliation(s)
- Anithadevi Sekar
- Department of Chemistry
- Madras Christian College
- Affiliated to the University of Madras
- Chennai
- India
| | - Rakhi Yadav
- Department of Chemistry
- Madras Christian College
- Affiliated to the University of Madras
- Chennai
- India
| | - Nivetha Basavaraj
- Department of Chemistry
- Madras Christian College
- Affiliated to the University of Madras
- Chennai
- India
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13
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Lin X, Xiong M, Zhang J, He C, Ma X, Zhang H, Kuang Y, Yang M, Huang Q. Carbon dots based on natural resources: Synthesis and applications in sensors. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105604] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Carbon dot/carbon nitride composites fluorescent probe for the highly selective detection of Cr(VI) ions. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112711] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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15
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Sensitivity fluorescent switching sensor for Cr (VI) and ascorbic acid detection based on orange peels-derived carbon dots modified with EDTA. Food Chem 2020; 318:126506. [DOI: 10.1016/j.foodchem.2020.126506] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/23/2020] [Accepted: 02/25/2020] [Indexed: 11/20/2022]
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16
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Lu H, Xu S. Dual channel ion imprinted fluorescent polymers for dual mode simultaneous chromium speciation analysis. Analyst 2020; 145:2661-2668. [PMID: 32104830 DOI: 10.1039/d0an00098a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A simple core shell structured fluorescent sensor was constructed to realize simultaneous detection of hexavalent and trivalent chromium ions. Briefly, blue-carbon dots (b-CDs) were embedded into a silica sphere, then a Cr(iii) imprinted silica layer doped with red-CDs (r-CDs) was coated onto the b-CDs@SiO2. Cr(vi) can selectively quench b-CDs based on the inner filter effect and Cr(iii) can selectively quench r-CDs based on electron transfer with the aid of the ion imprinting technique. In this strategy, it was not necessary to reduce Cr(vi) to Cr(iii) or oxidize Cr(iii) to Cr(vi), the chromium speciation of both can be detected simultaneously. When Cr(vi) was detected in the blue channel, the fluorescence intensity quenching effect was seen at 440 nm, and was linear from 0.01 to 10.0 μM, with a detection limit of 3.8 nM. For the detection of Cr(iii) in the red channel, the fluorescence intensity quenching effect was seen at 605 nm, and was linear from 0.1 to 15.0 μM, with a detection limit of 46 nM. This strategy enjoyed the advantages of simple construction, convenient detection, good selectivity and high sensitivity.
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Affiliation(s)
- Hongzhi Lu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, China
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17
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Sakaew C, Sricharoen P, Limchoowong N, Nuengmatcha P, Kukusamude C, Kongsri S, Chanthai S. Green and facile synthesis of water-soluble carbon dots from ethanolic shallot extract for chromium ion sensing in milk, fruit juices, and wastewater samples. RSC Adv 2020; 10:20638-20645. [PMID: 35517751 PMCID: PMC9054292 DOI: 10.1039/d0ra03101a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 05/25/2020] [Indexed: 11/21/2022] Open
Abstract
Self-functionalized carbon dots (CDs) were prepared from ethanolic shallot extract to obtain a total phenolic precursor.
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Affiliation(s)
- Chinawooth Sakaew
- Materials Chemistry Research Center
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Khon Kaen University
- Khon Kaen 40002
| | - Phitchan Sricharoen
- Preclinical Science Center
- Faculty of Dentistry
- Bangkokthonburi University
- Bangkok 10170
- Thailand
| | - Nunticha Limchoowong
- Department of Chemistry
- Faculty of Science
- Srinakharinwirot University
- Bangkok 10110
- Thailand
| | - Prawit Nuengmatcha
- Nanomaterials Chemistry Research Unit
- Department of Chemistry
- Faculty of Science and Technology
- Nakhon Si Thammarat Rajabhat University
- Nakhon Si Thammarat 80280
| | - Chunyapuk Kukusamude
- Nuclear Research and Development Division
- Thailand Institute of Nuclear Technology (Public Organization)
- Ongkharak
- Thailand
| | - Supalak Kongsri
- Nuclear Research and Development Division
- Thailand Institute of Nuclear Technology (Public Organization)
- Ongkharak
- Thailand
| | - Saksit Chanthai
- Materials Chemistry Research Center
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Khon Kaen University
- Khon Kaen 40002
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18
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Wang D, Zhang L, Li P, Li J, Dong C. Convenient synthesis of carbon nanodots for detecting Cr( vi) and ascorbic acid by fluorimetry. NEW J CHEM 2020. [DOI: 10.1039/d0nj04495d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Carbon nanodots (CDs) were simply synthesized from Sophora flavescens Ait. “On–off–on” fluorescent probes for the sensitive and selective detections of Cr(iv) and ascorbic acid (AA) were founded and well applied in real samples.
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Affiliation(s)
- Dongxiu Wang
- School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- China
| | - Lin Zhang
- School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- China
| | - Pengxia Li
- School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- China
| | - Junfen Li
- School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- China
| | - Chuan Dong
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- China
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19
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Yen YT, Lin YS, Chen TY, Chyueh SC, Chang HT. Carbon dots functionalized papers for high-throughput sensing of 4-chloroethcathinone and its analogues in crime sites. ROYAL SOCIETY OPEN SCIENCE 2019; 6:191017. [PMID: 31598318 PMCID: PMC6774952 DOI: 10.1098/rsos.191017] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/12/2019] [Indexed: 06/10/2023]
Abstract
Sensitive and selective assays are demanded for quantitation of new psychoactive substances such as 4-chloroethcathinone that is a π-conjugated keto compound. Carbon dots (C-dots) prepared from L-arginine through a hydrothermal route have been used for quantitation of 4-chloroethcathinone in aqueous solution and on C-dot-functionalized papers (CDFPs). To prepare CDFPs, chromatography papers, each with a pattern of 8 × 12 circles (wells), are first fabricated through a solid-ink printing method and then the C-dots are coated into the wells. π-Conjugated keto or ester compounds induce photoluminescence quenching of C-dots through an electron transfer process. At pH 7.0, the CDFPs allow screening of abused drugs such as cocaine, heroin and cathinones. Because of poor solubility of heroin and cocaine at pH 11.0, the C-dot probe is selective for cathinones. The C-dots in aqueous solution and CDFPs at pH 11.0 allow quantitation of 4-chloroethcathinone down to 1.73 mM and 0.14 mM, respectively. Our sensing system consisting of a portable UV-lamp, a smartphone and a low-cost CDFP has been used to detect cathinones, cocaine and heroin at pH 7.0, showing its potential for screening of these drugs in crime sites.
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Affiliation(s)
- Yao-Te Yen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan, Republic of China
- Department of Forensic Science, Investigation Bureau, Ministry of Justice, Xindian Dist, New Taipei City 23149, Taiwan, Republic of China
| | - Yu-Syuan Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan, Republic of China
| | - Ting-Yueh Chen
- Department of Forensic Science, Investigation Bureau, Ministry of Justice, Xindian Dist, New Taipei City 23149, Taiwan, Republic of China
| | - San-Chong Chyueh
- Department of Forensic Science, Investigation Bureau, Ministry of Justice, Xindian Dist, New Taipei City 23149, Taiwan, Republic of China
| | - Huan-Tsung Chang
- Department of Forensic Science, Investigation Bureau, Ministry of Justice, Xindian Dist, New Taipei City 23149, Taiwan, Republic of China
- Department of Chemistry, Chung Yuan Christian University, Chungli District, Taoyuan City 32023, Taiwan, Republic of China
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20
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Thangaraj B, Solomon PR, Ranganathan S. Synthesis of Carbon Quantum Dots with Special Reference to Biomass as a Source - A Review. Curr Pharm Des 2019; 25:1455-1476. [DOI: 10.2174/1381612825666190618154518] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/11/2019] [Indexed: 11/22/2022]
Abstract
Quantum dots (QDs) have received much attention due to their extraordinary optical application in
medical diagnostics, optoelectronics and in energy storage devices. The most conventional QDs are based on
semiconductors that comprise heavy metals whose applications are limited due to toxicity and potential environmental
hazard. Of late, researchers are focusing on carbon-based quantum dots, which have recently emerged as a
new family of zero-dimensional nanostructured materials. They are spherical in shape with a size below 10 nm
and exhibit excitation-wavelength-dependent photoluminescence (PL). Carbon quantum dots (CQDs) have
unique optical, photoluminescence and electrochemical properties. They are environment-friendly with low toxicity
as compared to toxic heavy metal quantum dots. Generally, CQDs are derived from chemical precursor materials,
but recently researchers have focused their attention on the production of CQDs from waste biomass materials
due to the economic and environmental exigency. In this review, recent advances in the synthesis of CQDs
from waste biomass materials, functionalization and modulation of CQDs and their potential application of biosensing
are focused. This review also brings out some challenges and future perspectives for developing smart
biosensing gadgets based on CQDs.
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Affiliation(s)
- Baskar Thangaraj
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang -212013, Zhenjiang, China
| | - Pravin R. Solomon
- School of Chemical & Biotechnology, SASTRA-Deemed University, Thanjavur - 613401, Tamil Nadu, India
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21
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A novel gold nanosol SERS quantitative analysis method for trace Na+ based on carbon dot catalysis. Food Chem 2019; 289:531-536. [DOI: 10.1016/j.foodchem.2019.03.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 03/02/2019] [Accepted: 03/10/2019] [Indexed: 11/20/2022]
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22
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Devi P, Rajput P, Thakur A, Kim KH, Kumar P. Recent advances in carbon quantum dot-based sensing of heavy metals in water. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.003] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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23
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Zheng X, Liu W, Gai Q, Tian Z, Ren S. A Carbon-Dot-Based Fluorescent Probe for the Sensitive and Selective Detection of Copper(II) Ions. ChemistrySelect 2019. [DOI: 10.1002/slct.201803584] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaochun Zheng
- Department of Optoelectronic Science; Harbin Institute of Technology at Weihai; Weihai 264209 People's Republic of China
| | - Wenjun Liu
- Department of Optoelectronic Science; Harbin Institute of Technology at Weihai; Weihai 264209 People's Republic of China
| | - Qixiao Gai
- Department of Optoelectronic Science; Harbin Institute of Technology at Weihai; Weihai 264209 People's Republic of China
| | - Zhaoshuo Tian
- Information Optoelectronics Research Institute; Harbin Institute of Technology at Weihai; Weihai 264209 People's Republic of China
| | - Shoutian Ren
- Department of Optoelectronic Science; Harbin Institute of Technology at Weihai; Weihai 264209 People's Republic of China
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24
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pH controlled green luminescent carbon dots derived from benzoxazine monomers for the fluorescence turn-on and turn-off detection. J Colloid Interface Sci 2019; 536:516-525. [DOI: 10.1016/j.jcis.2018.10.088] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 10/26/2018] [Accepted: 10/27/2018] [Indexed: 01/25/2023]
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25
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Chan KK, Yang C, Chien YH, Panwar N, Yong KT. A facile synthesis of label-free carbon dots with unique selectivity-tunable characteristics for ferric ion detection and cellular imaging applications. NEW J CHEM 2019. [DOI: 10.1039/c8nj06306k] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The application of a pH-tuning concept to create specific analytical responses of carbon dots towards a specific targeted metal ion.
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Affiliation(s)
- Kok Ken Chan
- School of Electrical and Electronic Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Chengbin Yang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging
- School of Biomedical Engineering
- Health Science Center
- Shenzhen University
- Shenzhen 518060
| | - Yi-Hsin Chien
- School of Electrical and Electronic Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
- Department of Materials Science and Engineering
| | - Nishtha Panwar
- School of Electrical and Electronic Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
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26
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Wang J, Xiang X, Milcovich G, Chen J, Chen C, Feng J, Hudson SP, Weng X, Ruan Y. Nitrogen and sulfur co-doped carbon nanodots toward bovine hemoglobin: A fluorescence quenching mechanism investigation. J Mol Recognit 2018; 32:e2761. [PMID: 30133028 DOI: 10.1002/jmr.2761] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 06/04/2018] [Accepted: 07/11/2018] [Indexed: 12/12/2022]
Abstract
A deep understanding of the molecular interactions of carbon nanodots with biomacromolecules is essential for wider applications of carbon nanodots both in vitro and in vivo. Herein, nitrogen and sulfur co-doped carbon dots (N,S-CDs) with a quantum yield of 16% were synthesized by a 1-step hydrothermal method. The N,S-CDs exhibited a good dispersion, with a graphite-like structure, along with the fluorescence lifetime of approximately 7.50 ns. Findings showed that the fluorescence of the N,S-CDs was effectively quenched by bovine hemoglobin as a result of the static fluorescence quenching. The mentioned quenching mechanism was investigated by the Stern-Volmer equation, temperature-dependent quenching, and fluorescence lifetime measurements. The binding constants, number of binding sites, and the binding average distance between the energy donor N,S-CDs and acceptor bovine hemoglobin were calculated as well. These findings will provide for valuable insights on the future bioapplications of N,S-CDs.
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Affiliation(s)
- Jiajun Wang
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Xueqing Xiang
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Gesmi Milcovich
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Castletroy, Ireland
| | - Jingru Chen
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Chao Chen
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Jiuju Feng
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Sarah P Hudson
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Castletroy, Ireland
| | | | - Yongming Ruan
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
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27
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Bhatt S, Bhatt M, Kumar A, Vyas G, Gajaria T, Paul P. Green route for synthesis of multifunctional fluorescent carbon dots from Tulsi leaves and its application as Cr(VI) sensors, bio-imaging and patterning agents. Colloids Surf B Biointerfaces 2018; 167:126-133. [PMID: 29635135 DOI: 10.1016/j.colsurfb.2018.04.008] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/29/2018] [Accepted: 04/03/2018] [Indexed: 12/15/2022]
Abstract
We report a one pot green strategy for the synthesis of carbon dots using tulsi leaves and their potential application in sensing of Cr(VI) selectively. The detection mechanism is based on the phenomenon called inner filter effect (IFE) and a good linear static quenching was observed in the range of 1.6 μM to 50 μM with a detection limit of 4.5 ppb. The reversible switching in fluorescence has been tested and a good recovery in fluorescence was observed up to three consecutive cycles upon addition of ascorbic acid as reducing agent. Also the low toxicity, high fluorescence and photostabilty of the CDs make them excellent imaging and patterning agent. The acid and alkali resistant property of these CDs makes it suitable for real sample analysis. The fluorescent CDs were applied for successful detection of Cr(VI) in water with spike-recoveries ranging from 93 to 99%.
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Affiliation(s)
- Shreya Bhatt
- Analytical and Environmental Science Division and Centralized Instrument Facility; Academy of Scientific and Innovative Research (AcSIR)
| | - Madhuri Bhatt
- Analytical and Environmental Science Division and Centralized Instrument Facility; Academy of Scientific and Innovative Research (AcSIR)
| | - Anshu Kumar
- Analytical and Environmental Science Division and Centralized Instrument Facility; Academy of Scientific and Innovative Research (AcSIR)
| | - Gaurav Vyas
- Analytical and Environmental Science Division and Centralized Instrument Facility; Academy of Scientific and Innovative Research (AcSIR)
| | - Tejal Gajaria
- Division of Biotechnology and Phycology, CSIR-Central Salt & Marine Chemicals Research Institute (CSMCRI), Bhavnagar, India; Academy of Scientific and Innovative Research (AcSIR)
| | - Parimal Paul
- Analytical and Environmental Science Division and Centralized Instrument Facility; Academy of Scientific and Innovative Research (AcSIR).
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28
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Wu B, Shi X, Han W, Wang T, Wang C, Jiang L. A double fluorescent nanoprobe based on phosphorus/nitrogen co-doped carbon dots for detecting dichromate ions and dopamine. RSC Adv 2018; 8:31793-31802. [PMID: 35548219 PMCID: PMC9085752 DOI: 10.1039/c8ra06120c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 08/28/2018] [Indexed: 01/07/2023] Open
Abstract
An “on–off–on” fluorescent phosphorus/nitrogen co-doped carbon dot (PNCD) probe was explored for the determination of Cr(vi) and dopamine resulting from the inner filter effect (IFE). The blue-emitting carbon dots with high quantum yields of 25.47% as well as a narrow size distribution were synthesized by a rapid, convenient route using H3PO4 and ethylenediamine as the precursors without any surface passivation. A wide linear region in the range of 7–70 μM with a detection limit of 0.71 μM was achieved for Cr(vi). Moreover, the proper reductants can weaken the inner filter effect to recover the PNCD fluorescence by converting Cr(vi) into Cr(iii). Therefore, the PNCDs/Cr(vi) hybrid could also be used as an “off–on” fluorescent probe for detecting dopamine (DA) with a detection limit of 0.49 μM. Consequently, the PNCDs could serve as a powerful fluorescent bi-sensor for detection of both Cr(vi) and DA in practical applications. An “on–off–on” fluorescent phosphorus/nitrogen co-doped carbon dot (PNCD) probe was explored for the determination of Cr(vi) and dopamine resulting from the inner filter effect (IFE).![]()
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Affiliation(s)
- Bin Wu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Xiaofeng Shi
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Wei Han
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Taishan Wang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Chunru Wang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Li Jiang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
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29
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Fang B, Wang P, Zhu Y, Wang C, Zhang G, Zheng X, Ding C, Gu J, Cao F. Basophilic green fluorescent carbon nanoparticles derived from benzoxazine for the detection of Cr(vi) in a strongly alkaline environment. RSC Adv 2018; 8:7377-7382. [PMID: 35539111 PMCID: PMC9078398 DOI: 10.1039/c7ra10814a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 02/10/2018] [Indexed: 01/25/2023] Open
Abstract
Fluorescent probes for heavy or transition metal ions in extreme environments are crucially important for practical use. In this work, basophilic green fluorescent carbon nanoparticles (G-CNPs) were synthesized by one-pot hydrothermal treatment of benzoxazine in NaOH aqueous solution. These G-CNPs showed favorable dispersibility in strongly alkaline conditions due to the abundant functional groups on their surface. Based on their good photoluminescence properties and excellent stability, the G-CNPs could be used to detect Cr(vi) in a strongly alkaline environment (pH = 14) through a fluorescence quenching effect. This detection process was achieved selectively among 17 anions within 30 seconds and the limitation was 0.58 μM (S/N = 3). It was revealed that the fluorescence turn-off process was caused by the inner filter effect (IFE) of Cr(vi). This study developed efficient fluorescence sensors based on fluorescent carbon nanoparticles, which could be used in strongly alkaline environments. Basophilic green fluorescent carbon nanoparticles (G-CNPs) were prepared from benzoxazine for the selective detection of Cr(vi) in strongly alkaline environments.![]()
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Affiliation(s)
- Bin Fang
- College of Science
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Ping Wang
- College of Science
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Yujia Zhu
- Departments of Radiation Oncology
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Sun Yat-sen University Cancer Center
- Guangzhou
| | - Caoyu Wang
- College of Science
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Geng Zhang
- College of Science
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Xinsheng Zheng
- College of Science
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Cong Ding
- College of Science
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Jiangjiang Gu
- College of Science
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Feifei Cao
- College of Science
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
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30
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Wang B, Lin Y, Tan H, Luo M, Dai S, Lu H, Huang Z. One-pot synthesis of N-doped carbon dots by pyrolyzing the gel composed of ethanolamine and 1-carboxyethyl-3-methylimidazolium chloride and their selective fluorescence sensing for Cr(vi) ions. Analyst 2018; 143:1906-1915. [DOI: 10.1039/c8an00077h] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
N-Doped carbon dots were synthesized by a one-pot pyrolysis method and used as a fluorescent sensor towards Cr(vi) ions.
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Affiliation(s)
- Baogang Wang
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province
| | - Yan Lin
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Hui Tan
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Mina Luo
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Shanshan Dai
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
| | - Zhiyu Huang
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu 610500
- P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province
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31
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Bankoti K, Rameshbabu AP, Datta S, Das B, Mitra A, Dhara S. Onion derived carbon nanodots for live cell imaging and accelerated skin wound healing. J Mater Chem B 2017; 5:6579-6592. [PMID: 32264420 DOI: 10.1039/c7tb00869d] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nitrogen, sulfur, and phosphorous co-doped water-soluble carbon nanodots are synthesized from culinary waste onion peel powder (OPP) by a short microwave treatment. Onion Derived Carbon Nano Dots (OCND) that comprised hydrophilic group-decorated amorphous nano-dots exhibited bright, stable fluorescence at an excitation of 450 nm and emission wavelength at 520 nm along with a free radical scavenging property. The OCND exhibited excellent stability at different pH and UV exposure. Although extracted polyphenols degraded in the extract, interestingly it was shown to be cytocompatible and blood compatible as observed during cytotoxicity, fluorescence imaging of the cell and a hemolysis study. The present work not only focuses on the synthesis of OCND from the OPP extract but also provides an interesting fact that, even after the degradation of polyphenols in the extract, they are non-toxic to human cells (HFF & MG63) and RBCs. Moreover, OCND had no adverse effect on the migration rate of Human Foreskin-derived Fibroblasts (HFFs) as observed from a scratch assay. In addition to accelerating the migration rate of fibroblasts, the OCND altered intra- and extracellular reactive oxygen species (ROS) by enhancing the antioxidant mechanism of a fibroblast under oxidative stress. Further, OCND was observed to accelerate wound healing in a full thickness (FT) wound in a rat model for topical application, which can be attributed to its radical scavenging potential. In summary, this study leads to a new type of OCND synthesis route, which is inherently co-doped with phosphorous, sulfur and nitrogen and holds a great promise for a myriad of biological applications, including bio-imaging, free radical scavenging and wound healing.
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Affiliation(s)
- Kamakshi Bankoti
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
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32
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Lu H, Ren S, Zhang P, Guo J, Li J, Dong G. Laser-textured surface storing a carbon dots/poly(ethylene glycol)/chitosan gel with slow-release lubrication effect. RSC Adv 2017. [DOI: 10.1039/c7ra02387a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Arthroplasty presents wear problems because body fluid, as the only lubricant, has poor performance.
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Affiliation(s)
- Hailin Lu
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Shanshan Ren
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Pengpeng Zhang
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Junde Guo
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Jianhui Li
- Department of Chemistry
- School of Science
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Guangneng Dong
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
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33
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Li P, Hong Y, Feng H, Li SFY. An efficient “off–on” carbon nanoparticle-based fluorescent sensor for recognition of chromium(vi) and ascorbic acid based on the inner filter effect. J Mater Chem B 2017; 5:2979-2988. [DOI: 10.1039/c7tb00017k] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple approach based on calcination treatment of diethylenetriaminepentaacetic acid (DTPA) was developed to prepare water-soluble nitrogen doped carbon nanoparticles (N-CNPs) with a high quantum yield of approximately 53.7%.
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Affiliation(s)
- Pingjing Li
- NUS Environmental Research Institute
- National University of Singapore
- Singapore
| | - Yayu Hong
- Chemistry Department
- National University of Singapore
- Singapore
| | - Huatao Feng
- Chemistry Department
- National University of Singapore
- Singapore
| | - Sam F. Y. Li
- NUS Environmental Research Institute
- National University of Singapore
- Singapore
- Chemistry Department
- National University of Singapore
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34
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Gong WJ, Yao R, Li HX, Ren ZG, Zhang JG, Lang JP. Luminescent cadmium(ii) coordination polymers of 1,2,4,5-tetrakis(4-pyridylvinyl)benzene used as efficient multi-responsive sensors for toxic metal ions in water. Dalton Trans 2017; 46:16861-16871. [DOI: 10.1039/c7dt03876c] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One luminescent cadmium(ii) coordination polymer of 1,2,4,5-tetrakis(4-pyridylvinyl)benzene works as an efficient multi-responsive sensor for Hg2+, CrO42− and Cr2O72− in water.
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Affiliation(s)
- Wei-Jie Gong
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Rui Yao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Hong-Xi Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Zhi-Gang Ren
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Jian-Guo Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Jian-Ping Lang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
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