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Khairy GM, Ragab SM, Moawed EA, El Sadda RR, Aboelnga MM. Uncovering an effecient binary system as a chemosensor for visual and fluorescence detection of chromium (VI) in water samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124729. [PMID: 38955073 DOI: 10.1016/j.saa.2024.124729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/02/2024] [Accepted: 06/25/2024] [Indexed: 07/04/2024]
Abstract
There is an urgent requirement for the development of sensitive and quick sensors to monitor chromium (VI) due to its substantial carcinogenic and mutagenic properties. A coexisting system of coumarin 334 and diphenylcarbazide (C334/DPC) was used in this study as a fluorescent chemosensor to detect Cr(VI) ions. Upon the addition of Cr(VI), a purple chelate complex (Cr(III)-diphenylcarbazone) was produced, which resulted from the quantitative reaction between Cr(VI) ions and diphenylcarbazide (DPC), whereas no interaction between Cr(VI) and coumarin 334 took place. More interestingly, the absorption spectra of purple (Cr(III)-diphenylcarbazone) complex (λmax = 540 nm) were overlapped with emission and excitation spectra of coumarin 334 (λex/em = 453/492), resulting in the efficient quenching of coumarin 334 (C334) via the inner filter effect. Furthermore, the semi-quantitative estimation of Cr(VI) ion concentration may be achieved by visually watching the progressive color transformation of the probe from yellow to red after the addition different concentration of Cr(VI). The calibration plot for determination of Cr(VI) by this method is ranging from 0.048 to 268 μM. DFT calculations were conducted to enrich our understanding about the mechanism of action. This approach demonstrates an excellent selectivity and sensitivity for Cr(VI) including a detection limit of 48 nM. The new sensor was successfully applied to water samples (tap, mineral, and waste waters). The accuracy was confirmed by the atomic absorption spectroscopy.
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Affiliation(s)
- Gasser M Khairy
- Chemistry Department, Faculty of Science, Suez Canal University, 41522 Ismailia, Egypt.
| | - Sara M Ragab
- Chemistry Department, Faculty of Science, Damietta University, 34511 Damietta, Egypt.
| | - Elhossein A Moawed
- Chemistry Department, Faculty of Science, Damietta University, 34511 Damietta, Egypt.
| | - Rana R El Sadda
- Chemistry Department, Faculty of Science, Damietta University, 34511 Damietta, Egypt.
| | - Mohamed M Aboelnga
- Chemistry Department, Faculty of Science, Damietta University, 34511 Damietta, Egypt.
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2
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Klongklaw K, Phiromkaew B, Kiatsuksri P, Kankit B, Anantachaisilp S, Wechakorn K. Green one-step synthesis of mushroom-derived carbon dots as fluorescent sensors for Fe 3+ detection. RSC Adv 2023; 13:30869-30875. [PMID: 37869393 PMCID: PMC10588369 DOI: 10.1039/d3ra06300c] [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: 09/15/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023] Open
Abstract
Blue photoluminescent carbon dots were synthesized from Lentinus polychrous Lèv. via a simple hydrothermal process without additional chemical reagents or functionalization. The carbon dots (hereafter referred to as LCDs) were quasi-spherical with an average diameter of 6.0 nm. The strong fluorescence emissions of LCDs were utilized as the basis of efficient turn-off probes for Fe3+. The quenching phenomenon could be used to rapidly determine Fe3+ concentrations in the range of 0.0-2.0 mM in aqueous solution, with a limit of detection (LOD) of 16 μM. In the presence of interference, LCDs demonstrated good sensitivity and selectivity towards Fe3+ in both solution-based and paper-based systems. The LCDs also exhibited excellent photostability and an eco-friendly nature, making them an ideal choice for environmental monitoring with significant potential for diagnostic applications.
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Affiliation(s)
- Kodchakorn Klongklaw
- Kamnoetvidya Science Academy 999 Moo 1, Payubnai, Wangchan Rayong 21210 Thailand
| | - Bunyarak Phiromkaew
- Kamnoetvidya Science Academy 999 Moo 1, Payubnai, Wangchan Rayong 21210 Thailand
| | - Praeploy Kiatsuksri
- Kamnoetvidya Science Academy 999 Moo 1, Payubnai, Wangchan Rayong 21210 Thailand
| | - Bantita Kankit
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi Pathum Thani 12110 Thailand
| | | | - Kanokorn Wechakorn
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi Pathum Thani 12110 Thailand
- Advanced Photochemical and Electrochemical Materials Research Unit, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi Pathum Thani 12110 Thailand
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3
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Mandal T, Ghosh AK, Mishra SR, Pandey SK, Singh V. Development of fluorescent carbon nanoparticles from Madhuca longifolia flower for the sensitive and selective detection of Cr 6+: a collective experimental-computational approach. NANOSCALE ADVANCES 2023; 5:4269-4285. [PMID: 37560432 PMCID: PMC10408586 DOI: 10.1039/d3na00289f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/14/2023] [Indexed: 08/11/2023]
Abstract
Herein, blue-emitting carbon nanoparticles (CNPs) were synthesized using the Madhuca longifolia flower for the highly selective and sensitive detection of Cr6+ ions in aqueous media using a simple, green, and cost-effective approach, and computational experiments were also performed. The prepared CNPs were well-dispersed in water with an average diameter of 12 nm and functionalized with carbonyl, hydroxyl and carboxylic acid groups. The decrease in the fluorescence intensity of the CNPs with an increase in the content of Cr6+ provided an important signal for the sensitive and selective detection of Cr6+ in aqueous media. The limit of detection for Cr6+ in an aqueous medium was found to be 103 ppb, which is more sensitive in comparison with the previously reported study. Furthermore, the validation of the proposed higher sensing feature and more selective nature of the CNPs towards Cr6+ was also explained using an in silico approach. The results from the theoretical calculations based on the DFT approach demonstrated that the binding energy (BE) of the CNPs with three transition metal (TM) cations (Cr6+, Fe3+, and Hg2+) follows the order of Cr6+ > Fe3+ > Hg2+, where the Cr6+ TM cation associated with the CNPs possesses the highest valence state, showing the highest sensing feature and highest selectivity among the investigated ions, as expected. The metal ions associated with the CNPs having a higher charge and a smaller radius indicated a higher BE and larger degree of deformation of the CNPs. Moreover, to achieve new insights into the structural, stability/energetics, and electronic features, some useful tools, such as NCI-plot, HOMO-LUMO gap, MESP, and QTAIM analysis were employed, which facilitated noteworthy outcomes.
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Affiliation(s)
- Tuhin Mandal
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
| | - Ashish Kumar Ghosh
- Coal Quality and Value Addition Division, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Shiv Rag Mishra
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Sarvesh Kumar Pandey
- Department of Chemistry, School of Basic Sciences, Manipal University Jaipur Jaipur - 303007 Rajasthan India
| | - Vikram Singh
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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4
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Bezuneh TT, Fereja TH, Li H, Jin Y. Solid-Phase Pyrolysis Synthesis of Highly Fluorescent Nitrogen/Sulfur Codoped Graphene Quantum Dots for Selective and Sensitive Diversity Detection of Cr(VI). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1538-1547. [PMID: 36652448 DOI: 10.1021/acs.langmuir.2c02966] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this study, a simple one-step solid-phase pyrolysis synthesis procedure was employed to prepare N and S codoped highly fluorescent graphene quantum dots (N/S-GQDs). The as-synthesized quantum dot showed λexcitation-dependent blue fluorescence (FL) emission with a relative quantum yield of about 22% and displayed good biocompatibility, high water dispersibility, and excellent stability under extreme conditions (i.e., ionic strength, pH, and temperature). The potential applicability of the as-synthesized quantum dot was tested by employing solution- and paper-based FL detection modes for Cr(VI) detection. The proposed solution- and paper-based FL sensors showed lower limit of detection (LOD) values of 0.01 and 0.4 μM, respectively. The as-constructed paper- and solution-based FL sensors proved the feasibility of sensitive, cost-effective, and on-site detection of Cr(VI).
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Affiliation(s)
- Terefe Tafese Bezuneh
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
- Department of Chemistry, College of Natural Sciences, Arbaminch University, P.O. Box 21, Arbaminch 4400, Ethiopia
| | - Tadesse Haile Fereja
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, P. R. China
- Department of Pharmacy, College of Medicine and Health Science, Ambo University, P.O. Box 19, Ambo 7260, Ethiopia
| | - Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, P. R. China
| | - Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
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5
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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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6
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Boruah A, Saikia BK. Chemical Fabrication of Efficient Blue‐luminescent Carbon Quantum Dots from Coal Washery Rejects (Waste) for Detection of Hg
2+
and Cr
6+
Ions in Water. ChemistrySelect 2022. [DOI: 10.1002/slct.202104567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anusuya Boruah
- Coal & Energy Group Materials Science and Technology Division CSIR-North East Institute of Science and Technology Jorhat-785006 Assam India. Academy of Scientific and Innovative Research Ghaziabad 201002 India
| | - Binoy K. Saikia
- Coal & Energy Group Materials Science and Technology Division CSIR-North East Institute of Science and Technology Jorhat-785006 Assam India. Academy of Scientific and Innovative Research Ghaziabad 201002 India
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7
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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: 2] [Impact Index Per Article: 1.0] [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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8
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Zhao L, Wang W, Wang Y, Li H, Zhao L, Wang N, Wang Y, Wang X, Pu Q. Low-cost devices with fluorescence spots brightness and size dual-mode readout for the rapid detection of Cr(VI) based on smartphones. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:125986. [PMID: 33990038 DOI: 10.1016/j.jhazmat.2021.125986] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/10/2021] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
Sensitive, convenient and rapid detection devices for toxic Cr(VI) suitable for filed use are required. Smartphone can be used as the detector, but the quality of images taken with a smartphone may depend on the ambient light and the operator. In this work, two types of low-cost and portable smartphone-based devices used for fluorescence spots brightness and size dual-mode detection of Cr(VI) were constructed with the aid of the 3D printing, which avoids the effect of ambient light and maintains a fixed position of the phone camera relative to the samples. Based on the brightness reflected by the blue channel of RGB values of the images of carbon nanodots, a linear relationship between quenching efficiency and concentration of Cr(VI) in a range of 0.2-150 μM with a limit of detection of 0.058 μM was attained, which is comparable to or better than that from fluorescence spectrometers. With the size variation of fluorescence spots, a linear range of 10-350 μM was acquired and it is more intuitive for direct naked-eye estimation of the concentration of Cr(VI). The applicability of the proposed devices for the detection of Cr(VI) was verified with water and soil samples with recoveries ranging in 95.0-108.2%.
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Affiliation(s)
- Lizhi Zhao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Wei Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yuanhang Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Hongli Li
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Lei Zhao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Naiyu Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yan Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiayan Wang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing 100124, China
| | - Qiaosheng Pu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
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9
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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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10
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Tall A, Antônio Cunha F, Kaboré B, d'Angeles do E. S. Barbosa C, Rocha U, Sales TO, Fonseca Goulart MO, Tapsoba I, Carinhanha Caldas Santos J. Green emitting N, P-doped carbon dots as efficient fluorescent nanoprobes for determination of Cr(VI) in water and soil samples. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106219] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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11
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Roshni V, Gujar V, Muntjeeb S, Doshi P, Ottoor D. Novel and Reliable Chemosensor Based on C. dots from Sunflower seeds for the Distinct Detection of Picric Acid and Bilirubin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 250:119354. [PMID: 33387803 DOI: 10.1016/j.saa.2020.119354] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/24/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Based on the green chemistry approach, highly fluorescent and novel carbon dots (C. dots) were synthesized from naturally available and cost effective sunflower seeds. The obtained C. dots showed a fluorescence quantum yield (Q.Y) of 9.5% with high water dispersibility and photostability. The obtained C. dots were employed for the detection of picric acid (PA) and bilirubin. A good linear relationship in the range of 20-60 nM was obtained for PA with a limit of detection (LOD) as low as 3.86 nM. C. dots were successfully incorporated in the agarose matrix which enabled them to be employed as a solid platform for the in situ detection of PA. The fluorescence of C. dots was selectively quenched by bilirubin compared to other biomolecules with a LOD of 2.03 μM. Use of C. dots as potential candidate for bilirubin detection was verified by real sample analysis. Further, the separation of C. dots was performed using column chromatography and the optical properties of the two different fractions obtained were studied. The blue fraction of C. dots was found to exhibit a higher fluorescence Q.Y and excitation independent emission, with an improved detection of PA and bilirubin.
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Affiliation(s)
- V Roshni
- Department of Chemistry, Savitribai Phule Pune University, Pune, India
| | - Varsha Gujar
- Department of Chemistry, Savitribai Phule Pune University, Pune, India
| | - Syed Muntjeeb
- Department of Chemistry, Savitribai Phule Pune University, Pune, India
| | - Pooja Doshi
- Department of Chemistry, Savitribai Phule Pune University, Pune, India
| | - Divya Ottoor
- Department of Chemistry, Savitribai Phule Pune University, Pune, India.
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12
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Tan Q, An X, Pan S, Liu H, Hu X. Hydrogen peroxide assisted synthesis of sulfur quantum dots for the detection of chromium (VI) and ascorbic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119122. [PMID: 33161271 DOI: 10.1016/j.saa.2020.119122] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/29/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
Sulfur quantum dots (SQDs), heavy-metal-free quantum dots, are regarded as the next generation promising green nanomaterials compared with traditional heavy-metal-based quantum dots. However, there have been few reports on the synthesis and application of SQDs for analytical detection. Herein, an H2O2-assisted top-down method is used to synthesize SQDs. The as-obtained SQDs have good water dispersion, stability, photoluminescence (PL) properties and achieving a quantum yield (QY) to 11%. After adding Cr (VI) in SQDs, the fluorescence intensity decreases base on inner filter effect (IFE). Moreover, Cr (VI) can be reduced to Cr(III) when ascorbic acid (AA) is introduced into the SQDs - Cr (VI) system, accompanying the recovery of the fluorescence intensity. The fluorescence sensor displays high sensitivity and quickly response toward Cr (VI) and AA in a range of 10-120 μmol L-1 and 20-500 μmol L-1 with a detection limit of 0.36 μmol L-1 and 1.21 μmol L-1, respectively. In addition, the fluorescence sensor has been applied for the determination of Cr (VI) and AA in real samples.
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Affiliation(s)
- Qin Tan
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xuanxuan An
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shuang Pan
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Hui Liu
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Xiaoli Hu
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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13
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Zhang S, Liu B, Hu D, Zhang S, Pei Y, Gong Z. Sensitive and visual detection of p-phenylenediamine by using dialdehyde cellulose membrane as a solid matrix. Anal Chim Acta 2020; 1139:189-197. [PMID: 33190703 DOI: 10.1016/j.aca.2020.09.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 09/22/2020] [Accepted: 09/24/2020] [Indexed: 11/24/2022]
Abstract
A novel method was developed for the sensitive and visual detection of p-phenylenediamine (PPD) via immobilizing the target specie PPD on dialdehyde cellulose membrane (DCM) followed by the reaction with salicylaldehyde. The obtained solid fluorescent membrane (S-PPD-DCM) emitted yellow fluorescence under 365 nm UV light. DCM was not only used as a solid matrix but also played a vital role in the enrichment of PPD. Experimental variables influencing the fluorescence signal were investigated and optimized. Under the optimum conditions, a detection limit of 5.35 μg L-1 was obtained and two linear ranges were observed at 10-100 and 100-1000 μg L-1, respectively. Moreover, the fluorescence of the resultant membrane can still be visualized by naked eye when PPD concentration was 50 μg L-1. The detection of PPD was hardly affected by the coexistence of 1 mg L-1 of o-phenylenediamine, m-phenylenediamine or phenylamine, exhibiting good selectivity. The developed method involved in a two-step Schiff base reaction and enhanced the fluorescence emission via blocking nonradiative intramolecular rotation decay of the excited molecules. It was applied to determine the PPD in spiked hair dye with satisfactory results.
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Affiliation(s)
- Shengli Zhang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, 610031, Chengdu, Sichuan, China.
| | - Bofang Liu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, 610031, Chengdu, Sichuan, China
| | - Daiyan Hu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, 610031, Chengdu, Sichuan, China
| | - Silue Zhang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, 610031, Chengdu, Sichuan, China
| | - Yanbo Pei
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, 610031, Chengdu, Sichuan, China
| | - Zhengjun Gong
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, 610031, Chengdu, Sichuan, China.
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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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Kumar D, Arora P, Singh H, Rajput JK. Polyhydroquinoline nanoaggregates: A dual fluorescent probe for detection of 2,4,6-trinitrophenol and chromium (VI). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 230:118087. [PMID: 31986428 DOI: 10.1016/j.saa.2020.118087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/07/2020] [Accepted: 01/20/2020] [Indexed: 06/10/2023]
Abstract
Fluorescent polyhydroquinoline (PHQ) derivative was fabricated utilizing one-pot engineered course. The PHQ derivative indicated aggregation induced emission enhancement (AIEE) with arrangement of nanoaggregates of size 11-13 nm in 95% watery DMF medium. The fluorescence emission of PHQ nanoaggregates was extinguished by including TNP and Cr (VI). They indicated prevalent fluorescence quenching towards both TNP and Cr (VI) over other meddling nitro-compounds and metal particles. In light of results got we presumed that both photo-induced fluorescence quenching of PHQ nanoaggregates by TNP, while Inner Filter Effect (IFE) was in charge of fluorescence quenching of PHQ nanoaggregates by Cr (VI). The PHQ nanoaggregates empowered identification of TNP and Cr (VI) down to 0.66 μM (TNP) and 0.28 μM (Cr (VI)). The use of PHQ nanoaggregates were reached out for location of TNP and Cr (VI) in genuine water tests.
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Affiliation(s)
- Deepak Kumar
- Department of Chemistry, Dr. B R Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India
| | - Priya Arora
- Department of Chemistry, Dr. B R Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India
| | | | - Jaspreet Kaur Rajput
- Department of Chemistry, Dr. B R Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India.
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16
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Luo B, Yang H, Zhou B, Ahmed SM, Zhang Y, Liu H, Liu X, He Y, Xia S. Facile Synthesis of Luffa Sponge Activated Carbon Fiber Based Carbon Quantum Dots with Green Fluorescence and Their Application in Cr(VI) Determination. ACS OMEGA 2020; 5:5540-5547. [PMID: 32201847 PMCID: PMC7081637 DOI: 10.1021/acsomega.0c00195] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/24/2020] [Indexed: 06/08/2023]
Abstract
Carbon quantum dots (CQDs) were prepared by a chemical oxidation method using luffa sponge based activated carbon fiber as the raw material. The obtained CQDs were well characterized. The fluorescence quenching effect of Cr(VI) ion on CQDs was investigated. The results show that the addition of Cr(VI) changes the intensity of the ultraviolet characteristic absorption peak of CQDs, and causes static quenching of the fluorescence of CQDs. With the increase in the Cr(VI) concentration, the fluorescence of CQDs was gradually extinguished linearly.
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Affiliation(s)
- Binhua Luo
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Hang Yang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Boxun Zhou
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Sanjrani Manzoor Ahmed
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Yi Zhang
- Dongfeng Motor Corporation, Equipment Company, Shiyan 442000, China
| | - Huamin Liu
- Sinopec Jianghan Oilfield, Chongqing Fulin District, Chongqing 400000, China
| | - Xiaowen Liu
- Sinopec Jianghan Oilfield, Chongqing Fulin District, Chongqing 400000, China
| | - Yong He
- Sinopec Jianghan Oilfield, Chongqing Fulin District, Chongqing 400000, China
| | - Shibin Xia
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
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17
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Polyaniline as an On−Off−On bright green fluorescent probe: Solvent directed synthesis, characterization and recognition of chromium through the inner filter effect. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122292] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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18
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Kaur J, Sharma S, Mehta SK, Kansal SK. Highly photoluminescent and pH sensitive nitrogen doped carbon dots (NCDs) as a fluorescent sensor for the efficient detection of Cr (VI) ions in aqueous media. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117572. [PMID: 31670040 DOI: 10.1016/j.saa.2019.117572] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/19/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
Fluorescent carbon dots (CDs) are contemporary class of fluorescent materials that has emerged recently and have gathered increasing attention due to its excellent properties as compared to traditional semiconductor quantum dots. CDs have lucrative benefits of less toxicity, biocompatibility, eco friendliness, tunable fluorescence, high chemical and photostability, effortless synthesis routes and uncomplicated surface modifications and functionalization. In the present work, nitrogen-doped carbon dots (NCDs) were prepared by a facile hydrothermal process using l-ascorbic acid and ethylene diamine as precursors. The as-prepared NCDs were hydrophilic in nature and could remain stable for several weeks. NCDs displayed bright blue fluorescence under UV light irradiation and also exhibited an extensive range of emission spectra in the visible region to infra-red region based upon the excitation wavelength. NCDs possessed quasi-spherical morphology and high density growth. NCDs were further utilized as nanoprobes for the pH sensing and proficient sensitive and selective detection of chromium (VI) ions present in aqueous phase. Under augmented modifications and conditions, the photoluminescence intensity of NCDs against various micromolar concentration of chromium (VI) ions presented a linear relationship, as per Stern-Volmer equation. The calibration curve was found to be linear in the range of 0-4 μM and from the slope of the linear curve, the limit of detection (LOD) was calculated to be 2.598 nM. The Stern-Volmer calibration curve was also plotted against different temperatures, verifying static quenching mechanism. Therefore, the as synthesized NCDs can be successfully demonstrated for the efficient pH sensing and the detection of Cr (VI) ions.
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Affiliation(s)
- Jasjot Kaur
- Dr. S.S. Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh, 160014, India
| | - Shelja Sharma
- Department of Chemistry and Centre of Advanced Studies, Panjab University, Chandigarh, 160014, India
| | - Surinder Kumar Mehta
- Department of Chemistry and Centre of Advanced Studies, Panjab University, Chandigarh, 160014, India
| | - Sushil Kumar Kansal
- Dr. S.S. Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh, 160014, India.
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19
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Metal free, phosphorus doped carbon nanodot mediated photocatalytic reduction of methylene blue. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01724-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Hu Y, Zhang J, Li G, Xing H, Wu M. Highly Sensitive Fluorescent Determination of Chromium(VI) by the Encapsulation of Cadmium Telluride Quantum Dots (CdTe QDs) into Zeolitic Imidazolate Framework-8 (ZIF-8). ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1712724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yufeng Hu
- School of Ocean Science and Technology, Dalian University of Technology, Panjin, China
| | - Junpeng Zhang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin, China
| | - Gang Li
- School of Ocean Science and Technology, Dalian University of Technology, Panjin, China
| | - Hanwen Xing
- School of Ocean Science and Technology, Dalian University of Technology, Panjin, China
| | - Minghuo Wu
- School of Ocean Science and Technology, Dalian University of Technology, Panjin, China
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21
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Shenbagavalli K, Yadav SK, Ananthappan P, Sundaram E, Ponmariappan S, Vasantha VS. A simple and fast protocol for the synthesis of 2-amino-4-(4-formylphenyl)-4 H-chromene-3-carbonitrile to develop an optical immunoassay for the quantification of botulinum neurotoxin type F. NEW J CHEM 2020. [DOI: 10.1039/d0nj04103c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this study, a novel optical immunoassay platform using (S)-2-amino-4-(4-formylphenyl)-4H-chromene-3-carbonitrile, which was synthesized by an ultra-sonication method, as an optical probe.
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Affiliation(s)
| | - Shiv Kumar Yadav
- Defence Research and Development Establishment
- Gwalior-474 002
- India
| | | | - Ellairaja Sundaram
- Department of Chemistry
- Vivekanada College Tiruvedakam West
- Madurai 625 234
- India
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22
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Bharathi G, Nataraj D, Premkumar S, Saravanan P, Thangadurai DT, Khyzhun OY, Senthilkumar K, Kathiresan R, Kolandaivel P, Gupta M, Phase D. Insight into the photophysics of strong dual emission (blue & green) producing graphene quantum dot clusters and their application towards selective and sensitive detection of trace level Fe3+ and Cr6+ ions. RSC Adv 2020; 10:26613-26630. [PMID: 35515801 PMCID: PMC9055443 DOI: 10.1039/d0ra04549g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/29/2020] [Indexed: 01/20/2023] Open
Abstract
Graphene-nanostructured systems, such as graphene quantum dots (GQDs), are well known for their interesting light-emitting characteristics and are being applied to a variety of luminescence-based applications. The emission properties of GQDs are complex. Therefore, understanding the science of the photophysics of coupled quantum systems (like quantum clusters) is still challenging. In this regard, we have successfully prepared two different types of GQD clusters, and explored their photophysical properties in detail. By co-relating the structure and photophysics, it was possible to understand the emission behavior of the cluster in detail. This gave new insight into understanding the clustering effect on the emission behaviour. The results clearly indicated that although GQDs are well connected, the local discontinuity in the structure prohibits the dynamics of photoexcited charge carriers going from one domain to another. Therefore, an excitation-sensitive dual emission was possible. Emission yield values of about 18% each were recorded at the blue and green emission wavelengths at a particular excitation energy. This meant that the choice of emission color was decided by the excitation energy. Through systematic analysis, it was found that both intrinsic and extrinsic effects contributed to the blue emission, whereas only the intrinsic effect contributed to the green emission. These excitation-sensitive dual emissive GQD clusters were then used to sense Fe3+ and Cr6+ ions in the nanomolar range. While the Cr6+ ions were able to quench both blue and green emissions, the Fe3+ ions quenched blue emission only. The insensitivity of the Fe3+ ions in the quenching of the green emission was also understood through quantum chemical calculations. Schematic representation for the origin of blue and green emissions, and the resultant PL emission spectra from the GQD interconnected cluster-type sample.![]()
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Affiliation(s)
- Ganapathi Bharathi
- Quantum Materials & Energy Devices (QM-ED) Laboratory
- Department of Physics
- Bharathiar University
- Coimbatore
- India
| | - Devaraj Nataraj
- Quantum Materials & Energy Devices (QM-ED) Laboratory
- Department of Physics
- Bharathiar University
- Coimbatore
- India
| | - Sellan Premkumar
- Quantum Materials & Energy Devices (QM-ED) Laboratory
- Department of Physics
- Bharathiar University
- Coimbatore
- India
| | | | - Daniel T. Thangadurai
- Department of Nanoscience and Technology
- Sri Ramakrishana Engineering College, Affiliated to Anna University
- Coimbatore – 641 022
- India
| | - Oleg Yu Khyzhun
- Department of Structural Chemistry of Solids
- Frantsevych Institute for Problems of Materials Science
- National Academy of Sciences of Ukraine
- UA-03142 Kyiv
- Ukraine
| | - Kittusamy Senthilkumar
- UGC-CPEPA Centre for Advanced Studies in Physics for the Development of Solar Energy Materials and Devices
- Department of Physics
- Bharathiar University
- Coimbatore
- India
| | - Ramasamy Kathiresan
- Macromolecular Laboratory
- Department of Physics
- Bharathiar University
- Coimbatore
- India
| | - Ponmalai Kolandaivel
- Macromolecular Laboratory
- Department of Physics
- Bharathiar University
- Coimbatore
- India
| | - Mukul Gupta
- UGC-DAE Consortium for Scientific Research
- Indore
- India
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23
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A Simple and Cost Effective Turn off Fluorescence Sensor for Biliverdin and Bilirubin Based on L-Cysteine Modulated Copper Nanoclusters. J Fluoresc 2019; 30:63-70. [PMID: 31858352 DOI: 10.1007/s10895-019-02470-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/12/2019] [Indexed: 10/25/2022]
Abstract
The present article reports the efficiency of L-cysteine modulated copper nanoclusters (L-cys-CuNCs) as a fluorescent probe for the selective determination of naturally occurring bile pigments biliverdin (BVD) and bilirubin (BLR). These pigments were found to quench the fluorescence of L-cys-CuNCs through static processes. Under optimized conditions, the proposed strategy permitted the quantification of BVD and BLR in the range 4.00 × 10-5 to 5.00 × 10-7M and 1.00×10-5 to 1.00×10-6 M respectively with limits of detection 2.33 × 10-7M and 2.29 × 10-7 M. The practical utility of the developed sensor have been investigated in spiked blood and urine samples.
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24
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Huang S, Yang E, Yao J, Chu X, Liu Y, Xiao Q. Nitrogen, phosphorus and sulfur tri-doped carbon dots are specific and sensitive fluorescent probes for determination of chromium(VI) in water samples and in living cells. Mikrochim Acta 2019; 186:851. [PMID: 31776683 DOI: 10.1007/s00604-019-3941-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 10/12/2019] [Indexed: 10/25/2022]
Abstract
A rapid, sensitive, and selective fluorometric assay is described for the determination of chromium(VI) in real waters and living cells. The method is making use of nitrogen, phosphorus, and sulfur tri-doped carbon dots (NPS-CDs) which have absorption/emission maxima at 360/505 nm/nm. Cr(VI) has an absorption maximum at 350 nm and causes an inner filter effect (IFE) on the blue fluorescence of the NPS-CDs. The NPS-CDs were hydrothermally synthesized using p-aminobenzenesulfonic acid and tetrakis(hydroxymethyl)phosphonium chloride as precursors. The NPS-CDs were characterized by transmission electron microscopy, X-ray diffraction, and several spectroscopic methods. They are biocompatible and negligibly cytotoxic when tested with HeLa cells and MCF-7 cells even after 48 h of incubation. The NPS-CDs were used as fluorescent probes for Cr(VI). The detection limit is 0.23 μM (three times standard deviation versus slope), and the linear response covers the 1 to 500 μM chromate concentration range. The NPS-CDs were applied to the determination of Cr(VI) in real waters and living cells (HeLa and MCF-7) and gave satisfying results. Graphical abstractSchematic representation of hydrothermal synthesis of nitrogen, phosphorus, and sulfur tri-doped carbon dots (NPS-CDs) for Cr(VI) detection via inner filter effect (IFE). NPS-CDs were applied to the determination of Cr(VI) in living cells (HeLa and MCF-7) with satisfying results.
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Affiliation(s)
- Shan Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, People's Republic of China
| | - Erli Yang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, People's Republic of China
| | - Jiandong Yao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, People's Republic of China
| | - Xu Chu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, People's Republic of China
| | - Yi Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, People's Republic of China
| | - Qi Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, People's Republic of China.
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25
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Sinha R, Bidkar AP, Rajasekhar R, Ghosh SS, Mandal TK. A facile synthesis of nontoxic luminescent carbon dots for detection of chromium and iron in real water sample and bio‐imaging. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23630] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Rupam Sinha
- Department of Chemical EngineeringIndian Institute of Technology Guwahati India
| | - Anil P. Bidkar
- Department of Biosciences and BioengineeringIndian Institute of Technology Guwahati India
| | - Ravula Rajasekhar
- Centre for the EnvironmentIndian Institute of Technology Guwahati India
| | - Siddhartha S. Ghosh
- Department of Biosciences and BioengineeringIndian Institute of Technology Guwahati India
- Centre for NanotechnologyIndian Institute of Technology Guwahati India
| | - Tapas K. Mandal
- Department of Chemical EngineeringIndian Institute of Technology Guwahati India
- Centre for the EnvironmentIndian Institute of Technology Guwahati India
- Centre for NanotechnologyIndian Institute of Technology Guwahati India
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26
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One-step synthesis of N-doped carbon dots, and their applications in curcumin sensing, fluorescent inks, and super-resolution nanoscopy. Mikrochim Acta 2019; 186:675. [DOI: 10.1007/s00604-019-3762-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 08/14/2019] [Indexed: 01/22/2023]
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27
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Singh AK, Singh VK, Singh M, Singh P, Khadim SR, Singh U, Koch B, Hasan S, Asthana R. One pot hydrothermal synthesis of fluorescent NP-carbon dots derived from Dunaliella salina biomass and its application in on-off sensing of Hg (II), Cr (VI) and live cell imaging. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.02.023] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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Lu KH, Lin JH, Lin CY, Chen CF, Yeh YC. A fluorometric paper test for chromium(VI) based on the use of N-doped carbon dots. Mikrochim Acta 2019; 186:227. [PMID: 30848371 DOI: 10.1007/s00604-019-3337-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 02/23/2019] [Indexed: 01/04/2023]
Abstract
Water-soluble nitrogen-doped carbon quantum dots (C-dots) were fabricated by microwave-induced decomposition of the precursor materials citric acid and N,N'-bis(2-aminoethyl)-1,2-ethanediamine. The C-dots were placed on portable paper strips with novel origami designs to simplified user operations. The intensity of the blue fluorescence, best measured at excitation/emission wavelengths of 330/420 nm, depends on the pH value in the range from pH 2 to 12. The C-dots on the paper stripe are shown to be a sensitive fluorescent probe for chromium(VI) via an inner filter effect. Response is linear in the 0.08 to 1 mM concentration range, and the detection limit (at S/N = 3) is 0.14 mM. The test was applied to the determination of chromium(VI) in (spiked) environmental water samples. Graphical abstract Schematic presentation of the water-soluble nitrogen-doped carbon dots (C-dots) as a fluorescent probe for Cr6+ based on an inner filter effect. The three-dimensional paper analytical device integrating C-dots was applied to the determination of Cr6+ in (spiked) environmental water samples.
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Affiliation(s)
- Kun-Hua Lu
- Department of Chemistry, National Taiwan Normal University, Taipei, 11677, Taiwan
| | - Jia-Hui Lin
- Institute of Applied Mechanics, National Taiwan University, Taipei, 10617, Taiwan
| | - Cheng-Yu Lin
- Department of Chemistry, National Taiwan Normal University, Taipei, 11677, Taiwan
| | - Chien-Fu Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei, 10617, Taiwan.
| | - Yi-Chun Yeh
- Department of Chemistry, National Taiwan Normal University, Taipei, 11677, Taiwan.
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29
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V R, Misra S, Santra MK, Ottoor D. One pot green synthesis of C-dots from groundnuts and its application as Cr(VI) sensor and in vitro bioimaging agent. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.12.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Phan LMT, Baek SH, Nguyen TP, Park KY, Ha S, Rafique R, Kailasa SK, Park TJ. Synthesis of fluorescent silicon quantum dots for ultra-rapid and selective sensing of Cr(VI) ion and biomonitoring of cancer cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:429-436. [DOI: 10.1016/j.msec.2018.08.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 07/12/2018] [Accepted: 08/07/2018] [Indexed: 10/28/2022]
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31
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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: 67] [Impact Index Per Article: 11.2] [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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32
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Singh VK, Singh V, Yadav PK, Chandra S, Bano D, Kumar V, Koch B, Talat M, Hasan SH. Bright-blue-emission nitrogen and phosphorus-doped carbon quantum dots as a promising nanoprobe for detection of Cr(vi) and ascorbic acid in pure aqueous solution and in living cells. NEW J CHEM 2018. [DOI: 10.1039/c8nj02126k] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Efficient synthesis of N,P-CQDs via a one-step hydrothermal method with a high quantum yield for potential applications in turn-off and turn-on detections of Cr(vi) and AA in vitro in living cells.
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Affiliation(s)
- Vikas Kumar Singh
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Virendra Singh
- Department of Zoology
- Institute of Science (Banaras Hindu University)
- Varanasi-221005
- India
| | - Pradeep Kumar Yadav
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Subhash Chandra
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Daraksha Bano
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Vijay Kumar
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Biplob Koch
- Department of Zoology
- Institute of Science (Banaras Hindu University)
- Varanasi-221005
- India
| | - Mahe Talat
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Syed Hadi Hasan
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
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33
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Chen S, Yu YL, Wang JH. Inner filter effect-based fluorescent sensing systems: A review. Anal Chim Acta 2017; 999:13-26. [PMID: 29254563 DOI: 10.1016/j.aca.2017.10.026] [Citation(s) in RCA: 310] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/24/2017] [Accepted: 10/24/2017] [Indexed: 12/28/2022]
Abstract
Inner filter effect (IFE) was previously considered as an error in fluorescence measurement. In recent years, it has been developed as an important non-irradiation energy conversion model of spectroscopic technique and found wide applications in the fields of chemical sensing and biosensing. In comparison with traditional techniques based on forster resonance energy transfer (FRET), the IFE-based fluorescent approach is more flexible and straightforward without the link of absorber with fluorescer. The present review for the first time introduces the state of the art in the progress of the IFE-based fluorescent sensing systems, including sensing strategy, essential conditions, materials option, and their applications for the detection of various target analytes, e.g., ionic species, small molecules, and macromolecules. In addition, the benefits and limitations of the IFE-based fluorescent sensing systems are also critically discussed and highlighted.
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Affiliation(s)
- Shuai Chen
- College of Life and Health Sciences, Northeastern University, Shenyang 110169, China
| | - Yong-Liang Yu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China.
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
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34
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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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35
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Wang S, Niu H, He S, Cai Y. One-step fabrication of high quantum yield sulfur- and nitrogen-doped carbon dots for sensitive and selective detection of Cr(vi). RSC Adv 2016. [DOI: 10.1039/c6ra21059g] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Easily synthesized high quantum yield sulfur- and nitrogen-doped carbon dots can serve as a very efficient fluorescent sensor for the detection of Cr(vi).
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Affiliation(s)
- Saihua Wang
- State Key Laboratory of Environmental Chemistry
- Ecotoxicology of Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing 100085
- China
| | - Hongyun Niu
- State Key Laboratory of Environmental Chemistry
- Ecotoxicology of Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing 100085
- China
| | - Sijing He
- State Key Laboratory of Environmental Chemistry
- Ecotoxicology of Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing 100085
- China
| | - Yaqi Cai
- State Key Laboratory of Environmental Chemistry
- Ecotoxicology of Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing 100085
- China
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