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Siddiqui J, Jamal Deen M. Biodegradable asparagine–graphene oxide free chlorine sensors fabricated using solution-based processing. Analyst 2022; 147:3643-3651. [DOI: 10.1039/d2an00533f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A free chlorine-sensing biodegradable ink was made by functionalizing asparagine onto graphene oxide then deposited on an electrode. The sensor showed a sensitivity of 0.30 μA ppm−1, selectivity amid interfering ions, and low temperature dependence.
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Affiliation(s)
- Junaid Siddiqui
- Electrical and Computer Engineering (ECE) Department, McMaster University, 1280 Main Street W, Hamilton, Ontario L8S 4K1, Canada
| | - M. Jamal Deen
- Electrical and Computer Engineering (ECE) Department, McMaster University, 1280 Main Street W, Hamilton, Ontario L8S 4K1, Canada
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2
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Uriarte D, Vidal E, Canals A, Domini CE, Garrido M. Simple-to-use and portable device for free chlorine determination based on microwave-assisted synthesized carbon dots and smartphone images. Talanta 2021; 229:122298. [PMID: 33838783 DOI: 10.1016/j.talanta.2021.122298] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 12/26/2022]
Abstract
A new portable and simple 3D printed device was designed for free chlorine determination in water samples. The analytical method was based on the quenching caused by free chlorine on the fluorescence emission of the carbon dots (CD) synthesized from citric acid and urea. The fluorescence was captured through the camera of a smartphone, which was coupled to the 3D printed device, and the images were processed using the RGB system by the ImageJ 1.51q software. The proposed method was selective and precise (RSD% 4.6, for n = 6), and the trueness of the results was evaluated by comparing the results obtained with those recovered by the spectrophotometric method 4500-Cl G (standard method), with good agreement between them. Moreover, the remarkable correlation between the CD signal and the free chlorine concentration resulted in a determination with low detection limits (limit of detection of 6 μg L-1 and limit of quantification of 20 μg L-1). Therefore, the new method and the related portable device could be considered a fast, economical and reliable alternative for the on-site determination of free chlorine in water samples.
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Affiliation(s)
- D Uriarte
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina
| | - E Vidal
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina
| | - A Canals
- Departamento de Química Analítica, Nutrición y Bromatología, Instituto Universitario de Materiales, Universidad de Alicante, Apdo. 99, 03080, Alicante, Spain
| | - C E Domini
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina.
| | - M Garrido
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina.
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3
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Vashisht D, Sangar S, Kaur M, Sharma E, Vashisht A, Ibhadon AO, Sharma S, Mehta SK, Singh K. Biosynthesis of silver nanospheres, kinetic profiling and their application in the optical sensing of mercury and chlorite ions in aqueous solutions. ENVIRONMENTAL RESEARCH 2021; 197:111142. [PMID: 33865822 DOI: 10.1016/j.envres.2021.111142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 03/26/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Pollution of water linked to microbial decontamination and extensive use of sodium chlorite (NaClO2) as a disinfectant, especially in the face of the current COVID-19 situation, is a serious water pollution issue that needs to be addressed. In this context, an environmentally friendly and cost-effective method has been developed for the biomimetic synthesis of Ag nanospheres (Ag NSs) using aqueous extract of Piper nigrum for the detection of chlorite (ClO2-) and mercury (Hg2+) ions. The strong antioxidant properties of the biomolecules present in the Piper nigrum extract reduce silver ions (Ag+) to Ag0. After optimization of the formulation parameters, it was observed that 1 mL of piper nigrum extract was sufficient to reduce and stabilize 100 mL of 1.5 mM of Ag+ in 2.5 h at 30 °C. X-ray diffraction (XRD) pattern of Ag NSs revealed their crystalline nature and the characteristic Bragg's diffraction peaks confirmed their face cubic crystal (FCC) lattice. The characteristic reddish-brown color and absorption surface plasmon resonance (SPR) band at 435 nm confirmed the successful fabrication of Ag NSs. Kinetic analysis revealed a three-phase growth pattern involving nucleation, growth and stabilization. Transmission electron microscopy (TEM) and High-resolution transmission electron microscopy (HRTEM) micrograms, showed spherical NSs with narrow polydispersity with particle size ranging from 10 to 30 nm. The synthesized NSs were exposed to various metal ions and anions. The absorption intensity of Ag NSs quenched in the presence of mercury ions (Hg2+) among the cations and Chlorite ions (ClO2-) among the anions. The limit of detection (LOD) of 7.47 μM and 1.11 μM was evaluated from the calibration curve for Hg2+ and ClO2-, respectively. Based on these promising results, it is suggested that the method reported is a low-cost and one step biogenic protocol for the synthesis of Ag NSs and their employment for the detection of Hg2+ and ClO2-ions.
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Affiliation(s)
- Devika Vashisht
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India; Department of Chemical Engineering, Faculty of Science and Engineering, University of Hull, Cottingham Road, Hull, HU6 7RX, United Kingdom
| | - Sugandha Sangar
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi, 174103, India
| | - Manpreet Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Ekta Sharma
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi, 174103, India
| | - Aseem Vashisht
- Department of Physics, Panjab University, Chandigarh, 160014, India
| | - A O Ibhadon
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Hull, Cottingham Road, Hull, HU6 7RX, United Kingdom
| | - Shweta Sharma
- Institute of Forensic Science and Criminology, Panjab University, Chandigarh, 160014, India
| | - S K Mehta
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Kulvinder Singh
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi, 174103, India.
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Nayak S, Sujay S, Karkera N, Sudarsh S, Jathan SS, Sajankila SP, Rao CV. One-Pot Detection of Heavy Metals and Biosynthesis of Fluorescent Nanoparticles from Metals in Groundwater Samples. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00840-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Kadam VV, Balakrishnan RM, Ettiyappan JP. Fluorometric detection of bisphenol A using β-cyclodextrin-functionalized ZnO QDs. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:11882-11892. [PMID: 31993908 DOI: 10.1007/s11356-020-07797-2] [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: 11/09/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
The estrogenic property of bisphenol A (BPA) leads to potential adverse health and ecological effects. A simple, selective, and cost-effective sensor capable of detecting BPA would have a noteworthy relevance for the environmental system. The present work illustrates the synthesis and characterization of β-cyclodextrin (β-CD) functionalized zinc oxide (ZnO) quantum dots (QDs) for the selective detection of BPA. BPA has a fluorescence quenching effect on functionalized ZnO QDs, and the decrease in fluorescence intensity is associated with the BPA concentration between 2 and 10 μM. Under the optimum reaction condition, a good linear correlation was obtained between relative fluorescence-quenching intensity of β-cyclodextrin-functionalized ZnO QDs and BPA concentration (R2 = 0.9891). The lower detection limit of functionalized QDs for BPA was estimated to be 0.19 μM, which is lower than the toxic limits in aquatic biota. The fluorescence-based detection of BPA may be ascribed to the electron transfer mechanism, which is elucidated with scientific details from the literature.
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Affiliation(s)
- Vrushali Vinayak Kadam
- Department of Chemical Engineering, National Institute of Technology, Surathkal, Karnataka, 575025, India
| | - Raj Mohan Balakrishnan
- Department of Chemical Engineering, National Institute of Technology, Surathkal, Karnataka, 575025, India.
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Singh P, Singh RK, Kumar R. Journey of ZnO quantum dots from undoped to rare-earth and transition metal-doped and their applications. RSC Adv 2021; 11:2512-2545. [PMID: 35424186 PMCID: PMC8693809 DOI: 10.1039/d0ra08670c] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/05/2020] [Indexed: 12/20/2022] Open
Abstract
Currently, developments in the field of quantum dots (QDs) have attracted researchers worldwide. A large variety of QDs have been discovered in the few years, which have excellent optoelectronic, antibacterial, magnetic, and other properties. However, ZnO is the single known material that can exist in the quantum state and can hold all the above properties. There is a lot of work going on in this field and we will be shorthanded if we do not accommodate this treasure at one place. This manuscript will prove to be a milestone in this noble cause. Having a tremendous potential, there is a developing enthusiasm toward the application of ZnO QDs in diverse areas. Sol-gel method being the simplest is the widely-favored synthetic method. Synthesis via this method is largely affected by a number of factors such as the reaction temperature, duration of the reaction, type of solvent, pH of the solution, and the precipitating agent. Doping enhances the optical, magnetic, anti-bacterial, anti-microbial, and other properties of ZnO QDs. However, doping elements reside mostly on the surface of the QDs. The presence of doping elements inside the core is still a major challenge for doping techniques. In this review article, we have focused on pure, rare-earth, and transition metal-doped ZnO QD properties, and the various synthetic processes and applications. Quantum confinement effect is present in nearly every aspect of the QDs. The effect of quantum confinement has also been summarized in this manuscript. Furthermore, the doping of rare earth elements and transition metal, synthetic methods for different organic molecule-capped ZnO QDs, mechanisms for reactive oxygen species (ROS) generation, drug delivery system for cancer treatment, and many more application are discussed in this paper.
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Affiliation(s)
- Pushpendra Singh
- Department of Physics, Dr Harisingh Gour Central University Sagar 470003 M. P. India +91 9425635731
| | - Rajan Kumar Singh
- Department of Physics, Dr Harisingh Gour Central University Sagar 470003 M. P. India +91 9425635731
- Department of Chemical Engineering, National Taiwan University Taipei Taiwan ROC
| | - Ranveer Kumar
- Department of Physics, Dr Harisingh Gour Central University Sagar 470003 M. P. India +91 9425635731
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7
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Javaid S, Lee J, Sofianos MV, Douglas‐Moore Z, Arrigan DWM, Silvester DS. Zinc Oxide Nanoparticles as Antifouling Materials for the Electrochemical Detection of Methylparaben. ChemElectroChem 2021. [DOI: 10.1002/celc.202001487] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shaghraf Javaid
- School of Molecular and Life Sciences Curtin University GPO Box U1987 Perth Western 6845 Australia
| | - Junqiao Lee
- School of Molecular and Life Sciences Curtin University GPO Box U1987 Perth Western 6845 Australia
| | - M. Veronica Sofianos
- Department of Physics and Astronomy Fuels and Energy Technology Institute Curtin University GPO Box U1987 Perth Western 6845 Australia
- School of Chemical and Bioprocess Engineering University College Dublin Belfield Dublin Ireland
| | - Zac Douglas‐Moore
- School of Molecular and Life Sciences Curtin University GPO Box U1987 Perth Western 6845 Australia
| | - Damien W. M. Arrigan
- School of Molecular and Life Sciences Curtin University GPO Box U1987 Perth Western 6845 Australia
| | - Debbie S. Silvester
- School of Molecular and Life Sciences Curtin University GPO Box U1987 Perth Western 6845 Australia
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Kokilavani S, Syed A, Raju LL, Marraiki N, Al-Rashed S, Elgorban AM, Thomas AM, Khan SS. Highly selective and sensitive tool for the detection of Hg(II) using 3-(Trimethoxysilyl) propyl methacrylate functionalized Ag-Ce nanocomposite from real water sample. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 242:118738. [PMID: 32731149 DOI: 10.1016/j.saa.2020.118738] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 07/05/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
Mercury and its derivates cause distinct toxicity and it is detrimental to the ecosystem where the excessive concentration contributes towards the environmental pollutants. The current study reported a colorimetric method for the detection of Hg(II) ion with high specificity and selectivity using Ag-Ce nanocomposite (NC) functionalized by 3-(Trimethoxysilyl) propyl methacrylate. The synthesized Ag-Ce NC was characterized by using double beam UV-visible spectrophotometer, zeta sizer, EDS, TEM, FT-IR, XRD and particle size analyzer. The synthesized particle possessed an average particle size of 27 ± 1 nm and zeta potential of -39.32 ± 3 mV. The brownish yellow colored Ag-Ce NC changed to colorless in presence of Hg(II) where the colorimetric detection was extremely specific and superior towards Hg(II) ion on comparing the tests with other metal ions. An excellent linear correlation was observed between absorbance (395 nm) and Hg(II) concentrations (1 nM-10 μM) (R2 = 0.988) with LOD of 0.03 nM. A cotton swab based probe was prepared for selective, elegant and low cost colorimetric method to detect Hg(II). The parametric study was performed for optimizing the suitable condition. The colorimetric probe developed by this study for Hg(II) detection using Ag-Ce NC shows excellent practical applicability.
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Affiliation(s)
- S Kokilavani
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Lija L Raju
- Department of Zoology, Mar Ivanios College, Nalanchira, Thiruvananthapuram, India
| | - Najat Marraiki
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Sarah Al-Rashed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ajith M Thomas
- Department of Botany and Biotechnology, St Xavier's College, Thumba, Thiruvananthapuram, India
| | - S Sudheer Khan
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
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9
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Kumar M, Negi K, Umar A, Chauhan MS. Photocatalytic and fluorescent chemical sensing applications of La-doped ZnO nanoparticles. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01388-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Facile Synthesis of Silver-Doped Zinc Oxide Nanostructures as Efficient Scaffolds for Detection of p-Nitrophenol. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8040108] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this paper, silver-doped zinc oxide nanoparticles were synthesized by using a solution combustion technique, in which zinc nitrate is used as an oxidizer and tartaric acid as a fuel. The phase composition, morphology and structural properties of the as-synthesized zinc oxide and silver-doped zinc oxide were established by using powdered X-ray diffraction, field emission scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy studies. Due to well-defined morphologies and crystallinity, the pure zinc oxide and silver-doped zinc oxide nanostructures can be used as efficient chemical sensors for the detection of p-nitrophenol (PNP). ZnO was found to show a low value of the limit of detection (LOD), i.e., 2.175 µM/L, for p-nitrophenol sensing; moreover, a sharp decrease in the limit of detection was observed with an increase in the concentration of silver ions, and the LOD value decreased to 0.669 µM/L for 10 mol % silver-doped zinc oxide. It is therefore concluded that Ag-doped ZnO shows a lower limit of detection as compared to pure ZnO for p-nitrophenol sensing.
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11
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Elmas S, Pospisilova A, Sekulska AA, Vasilev V, Nann T, Thornton S, Priest C. Photometric Sensing of Active Chlorine, Total Chlorine, and pH on a Microfluidic Chip for Online Swimming Pool Monitoring. SENSORS 2020; 20:s20113099. [PMID: 32486236 PMCID: PMC7308966 DOI: 10.3390/s20113099] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 12/20/2022]
Abstract
A microfluidic sensor was studied for the photometric detection of active chlorine, total chlorine, and pH in swimming pool samples. The sensor consisted of a four-layer borosilicate glass chip, containing a microchannel network and a 2.2 mm path length, 1.7 mL optical cell. The chip was optimised to measure the bleaching of methyl orange and spectral changes in phenol red for quantitative chlorine (active and total) and pH measurements that were suited to swimming pool monitoring. Reagent consumption (60 mL per measurement) was minimised to allow for maintenance-free operation over a nominal summer season (3 months) with minimal waste. The chip was tested using samples from 12 domestic, public, and commercial swimming pools (indoor and outdoor), with results that compare favourably with commercial products (test strips and the N,N'-diethyl-p-phenylenediamine (DPD) method), precision pH electrodes, and iodometric titration.
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Affiliation(s)
- Sait Elmas
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
- Institute for Nanoscale Science & Technology, College of Science & Engineering, Flinders University, Sturt Road, Bedford Park, SA 5042, Australia
| | - Aneta Pospisilova
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
| | - Aneta Anna Sekulska
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
| | - Vasil Vasilev
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
| | - Thomas Nann
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
- School of Mathematical and Physical Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - Stephen Thornton
- Tekelek Australia Pty Ltd., 95A Bedford St, Gillman, SA 5013, Australia;
| | - Craig Priest
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
- Correspondence:
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12
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Vashisht D, Sharma E, Kaur M, Vashisht A, Mehta SK, Singh K. Solvothermal assisted phosphate functionalized graphitic carbon nitride quantum dots for optical sensing of Fe ions and its thermodynamic aspects. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117773. [PMID: 31740119 DOI: 10.1016/j.saa.2019.117773] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
A facile method has been proposed for the determination of Ferrous (Fe(II)) and Ferric (Fe(III)) ions using phosphate functionalized graphitic carbon nitride quantum dots (Ph-g-CNQDs) in an aqueous medium. The easy solvothermal procedure using oleic acid as the solvent yielded the Ph-g-CNQDs in less than 30 min. The communication among the Fe(II) and Fe(III) with Ph-g-CNQDs caused quenching of the blue Ph-g-CNQDs fluorescence signals. The Ph-g-CNQDs have been successfully characterized using X-ray diffractometry (XRD), X-ray Photoelectron spectroscopy (XPS), Transmission electron microscopy (TEM), Fourier Transform Infrared (FT-IR) spectroscopy, UV-vis absorption and photoluminescence spectrophotometry. The temperature dependent behavior of the Ph-g-CNQDs was also observed and various thermodynamic parameters have also been evaluated. The Ph-g-CNQDs displayed an excellent quantum yield of 60.54% using quinine sulfate as the standard reference. The developed method has been applied to water samples collected from different sources and good recoveries were observed which entitles this method as apt for real time monitoring.
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Affiliation(s)
- Devika Vashisht
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Ekta Sharma
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi 174103, India
| | - Manpreet Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Aseem Vashisht
- Department of Physics, Panjab University, Chandigarh 160014, India
| | - S K Mehta
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Kulvinder Singh
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi 174103, India.
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13
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“ESIPT-AIE” based sequential fluorescence ‘on-off’ marker for endogenous detection of hypochlorite and cobalt (II). Microchem J 2020. [DOI: 10.1016/j.microc.2019.104499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Saha S, Das S, Das S, Samanta A, Maitra S, Sahoo P. Prompt detection of endogenous hypochlorite (ClO−) in murine macrophages and zebrafish embryos facilitated by a distinctive chemodosimetric mode. Org Biomol Chem 2020; 18:6716-6723. [DOI: 10.1039/d0ob01389g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A fluorescein appended naphthalene diimide based probe (FANDI) has been developed to selectively recognize exogenous as well as endogenous ClO− ions in RAW 264.7 cells (macrophages) and zebrafish embryos (Danio rerio).
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Affiliation(s)
- Shrabani Saha
- Molecular Recognition Laboratory
- Department of Chemistry
- Visva-Bharati University
- Santiniketan-731235
- India
| | - Sujoy Das
- Molecular Recognition Laboratory
- Department of Chemistry
- Visva-Bharati University
- Santiniketan-731235
- India
| | - Sriparna Das
- Molecular and Cellular Endocrinology Laboratory
- Department of Zoology
- Visva-Bharati University
- Santiniketan-731235
- India
| | - Anwesha Samanta
- Molecular and Cellular Endocrinology Laboratory
- Department of Zoology
- Visva-Bharati University
- Santiniketan-731235
- India
| | - Sudipta Maitra
- Molecular and Cellular Endocrinology Laboratory
- Department of Zoology
- Visva-Bharati University
- Santiniketan-731235
- India
| | - Prithidipa Sahoo
- Molecular Recognition Laboratory
- Department of Chemistry
- Visva-Bharati University
- Santiniketan-731235
- India
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15
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Facile synthesis of sulfur and nitrogen codoped graphene quantum dots for optical sensing of Hg and Ag ions. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.06.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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16
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A novel paper-based sensor for determination of halogens and halides by dynamic gas extraction. Talanta 2019; 199:513-521. [DOI: 10.1016/j.talanta.2019.02.093] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 12/15/2022]
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17
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Tong Z, Xing X, Yang Y, Hong P, Wang Z, Zhao R, Zhang X, Peng S, Wang Y. Fluorescent ZnO quantum dots synthesized with urea for the selective detection of Cr 6+ ion in water with a wide range of concentrations. Methods Appl Fluoresc 2019; 7:035007. [PMID: 31195378 DOI: 10.1088/2050-6120/ab29c8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Nearly monodisperse Zinc oxide (ZnO) quantum dots (QDs) displayed yellow fluorescence were synthesized using urea as dispersant. In this paper, urea-ZnO QDs were used as fluorescent probe to detect Cr6+ in solution. The emission from the as-synthesized urea-ZnO QDs is selectively quenched when Cr6+ ions were added. Moreover, there are two linear relationships between the quenching of fluorescence intensity and the Cr6+ concentrations ranging from 4 μM to 1000 μM, with the detection limit for Cr6+ at 19.53 nM (on basis of 3σ/slope criterion). The quenching of fluorescence is attributed to aggregation of the QDs and charge transfer between the QDs and Cr6+ by measurements of transmission electron microscopy (TEM) images, UV-visible absorption spectra and fluorescence lifetime.
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Affiliation(s)
- Zou Tong
- School of Materials Science and Engineering, Yunnan University, 650091 Kunming, People's Republic of China
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Laopa P, Vilaivan T. Cationic‐Polymer‐Functionalized Zinc Oxide Quantum Dots: Preparation and Application to Iron(II) Ion Detection. ChemistrySelect 2019. [DOI: 10.1002/slct.201900424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Praethong Laopa
- Department of General Science, Faculty of Science and EngineeringKasetsart UniversityChalermphrakiat Sakon Nakhon Province Campus Sakon Nakhon 47000 Thailand
| | - Tirayut Vilaivan
- Organic Synthesis Research UnitDepartment of Chemistry, Faculty of ScienceChulalongkorn University Phayathai Road, Patumwan Bangkok 10330 Thailand
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Apyari VV, Gorbunova MO, Shevchenko AV, Furletov AA, Volkov PA, Garshev AV, Dmitrienko SG, Zolotov YA. Towards highly selective detection using metal nanoparticles: A case of silver triangular nanoplates and chlorine. Talanta 2018; 176:406-411. [DOI: 10.1016/j.talanta.2017.08.056] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/12/2017] [Accepted: 08/16/2017] [Indexed: 11/27/2022]
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20
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Bimetallic nanoclusters with strong red fluorescence for sensitive detection of hypochlorite in tap water. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2398-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Specific Fluorescence Probe for Direct Recognition of Dimethoate Using Molecularly Imprinting Polymer on ZnO Quantum Dots. J Fluoresc 2017; 27:1339-1347. [DOI: 10.1007/s10895-017-2068-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 03/02/2017] [Indexed: 11/26/2022]
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Chlorine triggered de-alloying of AuAg@Carbon nanodots: Towards fabrication of a dual signalling assay combining the plasmonic property of bimetallic alloy nanoparticles and photoluminescence of carbon nanodots. Anal Chim Acta 2017; 959:74-82. [DOI: 10.1016/j.aca.2016.12.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/21/2016] [Accepted: 12/23/2016] [Indexed: 01/21/2023]
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Hassanzadeh J, Khataee A, Mosaei Oskoei Y, Fattahi H, Bagheri N. Selective chemiluminescence method for the determination of trinitrotoluene based on molecularly imprinted polymer-capped ZnO quantum dots. NEW J CHEM 2017. [DOI: 10.1039/c7nj01802a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel molecularly imprinted polymer (MIP) based chemiluminescence (CL) assay is described for the determination of TNT in environmental samples.
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Affiliation(s)
- Javad Hassanzadeh
- Research Laboratory of Advanced Water and Wastewater Treatment Processes
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- 51666-16471 Tabriz
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- 51666-16471 Tabriz
| | - Yones Mosaei Oskoei
- North-West Institute of Science and Technology
- Malek Ashtar University of Technology
- Urmia 5713616864
- Iran
| | - Hassan Fattahi
- North-West Institute of Science and Technology
- Malek Ashtar University of Technology
- Urmia 5713616864
- Iran
| | - Nafiseh Bagheri
- Department of Chemistry
- Faculty of Science
- Azarbaijan Shahid Madani University
- Tabriz
- Iran
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