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Aguilar GT, Mijares MM, Solís-Pomar F, Gutiérrez-Lazos CD, Pérez-Tijerina EG, Cruz AF. One-Pot Synthesis of CdTe/ZnS Quantum Dots and their Physico-Chemical Characterization. J Fluoresc 2024; 34:1801-1810. [PMID: 37624469 DOI: 10.1007/s10895-023-03406-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
A known property of quantum dots (QDs) is their characteristic luminescence, which would make it possible to detect different types of cancers after being functionalized with some type of biological molecule. For this reason, in the present investigation a methodological analysis of the physicochemical characteristics of the CdTe/ZnS core/shell QDs was carried out, using techniques such as Optical Absorbance Spectroscopy (UV-Vis), Molecular Fluorescence, Fourier Transform Infrared Spectroscopy (FT-IR), Dynamic Light Scattering (DLS), X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Zeta Potential that allowed to verify the photoluminescent effectiveness of these semiconductor nanocrystals as an alternative to conventional techniques currently used for the detection of specific cancers smaller than 1 cm. The study consisted of theoretically determining the bandgap energy, the size of the nanocrystals and the molar absorptivity from the wavelength value for the maximum intensity of the excitonic peak. It was also possible to verify the maximum intensity for each sample and thus evaluate its photoluminescent response, as well as it was possible to determine the charge distribution, the hydrodynamic size and the surface composition of each quantum dot. The results obtained correspond to what has been reported in the literature, which makes them good candidates for the detection of cancer in precancerous stages.
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Affiliation(s)
- Gabriela Travieso Aguilar
- Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Zapata y G. Vedado, 10400, La Habana, Cuba
| | - Maykel Márquez Mijares
- Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC), Universidad de La Habana, Zapata y G. Vedado, 10400, La Habana, Cuba
| | - Francisco Solís-Pomar
- CICFIM Facultad de Ciencias Físico Matemáticas, Universidad Autónoma de Nuevo León, 66455, San Nicolás de los Garza, Nuevo León, Mexico.
| | - C D Gutiérrez-Lazos
- CICFIM Facultad de Ciencias Físico Matemáticas, Universidad Autónoma de Nuevo León, 66455, San Nicolás de los Garza, Nuevo León, Mexico
| | - Eduardo G Pérez-Tijerina
- CICFIM Facultad de Ciencias Físico Matemáticas, Universidad Autónoma de Nuevo León, 66455, San Nicolás de los Garza, Nuevo León, Mexico
| | - Abel Fundora Cruz
- Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC), Universidad de La Habana, Zapata y G. Vedado, 10400, La Habana, Cuba
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Ramírez Garza RE, Rodríguez de Luna SL, Padrón GH, Gómez de la Fuente I. A "turn-off" photoluminescent sensor for H 2O 2 detection based on a zinc oxide-graphene quantum dot (ZnO-GQD) nanocomposite and the role of amine in the development of GQD. RSC Adv 2023; 13:21808-21819. [PMID: 37475761 PMCID: PMC10354502 DOI: 10.1039/d3ra02355a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/05/2023] [Indexed: 07/22/2023] Open
Abstract
In this work, graphene quantum dots (GQD) were prepared through a hydrothermal process. The photoluminescence (PL) emission spectrum for GQD prepared with high NH4OH concentration (sample D1-t) was attained at lower wavelength (406 nm), compared to GQD synthesized with low NH4OH concentration (sample D2-t attained at 418 nm). From these results, a smaller particle size for D1-t was deduced; according to TEM images the GQD particles are around 5 nm. The Raman ID3/IG ratio which is related to C-O groups at the edges of GQD and the full width at half maximum was lower for D1-t than D2-t. This was ascribed to the amine group incorporation at the edges and at the basal planes in D1-t, whilst in D2-t they prefer principally the edges of the GQD structure. The ZnO nanoparticles bonded to GQD (ZnO-GQD, nanocomposites) enhance the PL emission intensity. The H2O2 detection tested by photoluminescence spectroscopy, was found to occur thanks to the ZnO from the nanocomposite and its interaction with H2O2, producing a quenching effect. This quenching was accentuated by the increase of the H2O2 concentration. Such properties suggest the ZnO-GQD nanocomposite as a candidate to be used as a sensor material.
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Affiliation(s)
- Rolando Efraín Ramírez Garza
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria Lab. de Materiales 1, Av. Pedro de Alba s/n C.P. 66455 San Nicolás de los Garza Nuevo León Mexico +52-81-83-294010 ext. 6240
| | - Sara Luisa Rodríguez de Luna
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria Lab. de Materiales 1, Av. Pedro de Alba s/n C.P. 66455 San Nicolás de los Garza Nuevo León Mexico +52-81-83-294010 ext. 6240
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey Av. Eugenio Garza Sada 2501 Sur Monterrey Nuevo León C.P. 64849 Mexico
| | - Genoveva Hernández Padrón
- Departamento de Nanotecnología, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México. Campus Juriquilla Boulevard Juriquilla no. 3001 Santiago de Querétaro Querétaro Mexico
| | - Idalia Gómez de la Fuente
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria Lab. de Materiales 1, Av. Pedro de Alba s/n C.P. 66455 San Nicolás de los Garza Nuevo León Mexico +52-81-83-294010 ext. 6240
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Assiri MA, Waseem MT, Hamad A, Imran M, Farooq U, Shahzad SA. Ratiometric and colorimetric probes with large stokes shift for sensing of exogenous hypochlorite in potato sprouts and industrial effluents. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122298. [PMID: 36603278 DOI: 10.1016/j.saa.2022.122298] [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: 10/11/2022] [Revised: 12/15/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Being one of the important reactive oxygen species (ROS), hypochlorite ions (ClO-) are involved in the control of several pathological and physiological processes. However, overexpression of ClO- may prompt several disorders including cancer. Therefore, two fluorescein functionalized compounds with catechol (probe 1) and 2-naphthyl (probe 2) as substituents were synthesized through Schiff base reaction to recognize ClO- in food items and industrial samples. While probe 2 exhibited turn-off fluorescent response towards ClO- with limit of detection (LOD) of 86.7 nM, structurally alike probe 1 showed excellent ratiometric response with low detection limit (36.3 nM), large Stokes shift (353 nm), and 'fast' response time (15 s). 1H NMR titration experiments favored spiroring opening of probe 1 upon the reaction with ClO-. Probe 1 was successfully utilized for the monitoring of exogenous ClO- in industrial samples. Further, fabrication of probe coated fluorescent paper strips and recognition of ClO- in sprouting potato show diverse practical applicability of our probes.
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Affiliation(s)
- Mohammed A Assiri
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P. O. Box 9004, Abha 61514, Saudi Arabia; Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Muhammad Tahir Waseem
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad 22060, Pakistan
| | - Asad Hamad
- Faculty of Pharmacy, Grand Asian University Sialkot, 51310 Punjab, Pakistan
| | - Muhammad Imran
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P. O. Box 9004, Abha 61514, Saudi Arabia; Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Umar Farooq
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad 22060, Pakistan
| | - Sohail Anjum Shahzad
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad 22060, Pakistan.
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4
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Topcu A, Bağda E, Oymak T, Durmuş M. Development of quantum dot-phthalocyanine integrated G-quadruplex /double-stranded DNA biosensor. Anal Biochem 2022; 654:114777. [PMID: 35750250 DOI: 10.1016/j.ab.2022.114777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/31/2022] [Accepted: 06/08/2022] [Indexed: 11/26/2022]
Abstract
In the present study, the phthalocyanine (Pc) integrated mercaptopropionic acid capped quantum dot (mpa@QD) biosensor has been developed for the quantitative determination of G-quadruplex and double-stranded DNA. The working principle of the developed biosensor platform is based on the quenching of the emission signal of the mpa@QD in the presence of Pc (closed position) and the recovery of the fluorescence signal in the presence of DNA (open position). The parameters affecting biosensor performance, such as Pc type and concentration, were optimized. Since the developed biosensor aimed to determine G-quadruplex and double-stranded DNA in biological samples, the effect of common ions (such as Na+, Mg2+) and serum albumin found in many biological matrices on the biosensor performance were examined. The effect of common ions on biosensor signal was negligible, except Zn2+. The analytical properties of the biosensor, such as linear range, calibration sensitivity, relative standard deviation %, the limit of detection, and quantification, were determined. The limit of detection and quantification values were found 0.055 μM and 0.18 μM for AS1411, 0.061 μM and 0.20 μM for Tel21, 0.038 μM and 0.13 μM for Tel45 and 0.091 μM and 0.30 μM for ctDNA. Several different synthetic samples were prepared. The spiked synthetic samples such as mammalian cell medium were used to evaluate the analytical performance of Pc-mpa@QD. All synthetic samples were prepared with polyethylene glycol, which resembles biological samples' crowded environment.
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Affiliation(s)
- Ayşe Topcu
- Department of Basic Pharmaceutical Sciences, Analytical Chemistry Division, Faculty of Pharmacy, Sivas Cumhuriyet University, 58140, Sivas, Turkey
| | - Esra Bağda
- Department of Basic Pharmaceutical Sciences, Analytical Chemistry Division, Faculty of Pharmacy, Sivas Cumhuriyet University, 58140, Sivas, Turkey.
| | - Tülay Oymak
- Department of Basic Pharmaceutical Sciences, Analytical Chemistry Division, Faculty of Pharmacy, Sivas Cumhuriyet University, 58140, Sivas, Turkey
| | - Mahmut Durmuş
- Gebze Technical University, Department of Chemistry, Gebze, 41400, Kocaeli, Turkey
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5
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Choudhary YS, Nageswaran G. Synthesis and Characterization of CdTe QDs Capped with Branched 3MB3MP Ligand and Fluorescent Switching Detection of H2O2. NEW J CHEM 2022. [DOI: 10.1039/d1nj05756a] [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
Owing to the possibility for modification with various multifunctional ligand groups , and thereby attaining selective and sensitive detection; water soluble quantum dots (QDs) always attract scientific attention, in the...
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6
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Gvozdev DA, Maksimov EG, Strakhovskaya MG, Pashchenko VZ, Rubin AB. Hybrid Complexes of Photosensitizers with Luminescent Nanoparticles: Design of the Structure. Acta Naturae 2021; 13:24-37. [PMID: 34707895 PMCID: PMC8526191 DOI: 10.32607/actanaturae.11379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/14/2021] [Indexed: 11/20/2022] Open
Abstract
Increasing the efficiency of the photodynamic action of the dyes used in photodynamic therapy is crucial in the field of modern biomedicine. There are two main approaches used to increase the efficiency of photosensitizers. The first one is targeted delivery to the object of photodynamic action, while the second one is increasing the absorption capacity of the molecule. Both approaches can be implemented by producing dye-nanoparticle conjugates. In this review, we focus on the features of the latter approach, when nanoparticles act as a light-harvesting agent and nonradiatively transfer the electronic excitation energy to a photosensitizer molecule. We will consider the hybrid photosensitizer-quantum dot complexes with energy transfer occurring according to the inductive-resonance mechanism as an example. The principle consisting in optimizing the design of hybrid complexes is proposed after an analysis of the published data; the parameters affecting the efficiency of energy transfer and the generation of reactive oxygen species in such systems are described.
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Affiliation(s)
- D. A. Gvozdev
- M.V. Lomonosov Moscow State University, Department of Biology, Moscow, 119991 Russia
| | - E. G. Maksimov
- M.V. Lomonosov Moscow State University, Department of Biology, Moscow, 119991 Russia
| | - M. G. Strakhovskaya
- M.V. Lomonosov Moscow State University, Department of Biology, Moscow, 119991 Russia
| | - V. Z. Pashchenko
- M.V. Lomonosov Moscow State University, Department of Biology, Moscow, 119991 Russia
| | - A. B. Rubin
- M.V. Lomonosov Moscow State University, Department of Biology, Moscow, 119991 Russia
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7
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Bardajee GR, Sharifi M, Mahmoodian H. Novel CMC-CdTe / ZnS QDs Nanosensor for the Detection of Anticancer Drug Epirubicin. J Fluoresc 2021; 31:651-658. [PMID: 33599913 DOI: 10.1007/s10895-021-02687-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
Epirubicin (EPI) is one of the standard anticancer drugs that apply for various cancers treatment. However, the accumulation of EPI in the human body can be highly toxic, and it causes inevitable harm to organs. As a result, the evaluation of low concentrations of this drug in body samples requires sensitive, rapid, and accurate analysis methods. The fluorescence method is an efficient way in comparison of the traditional methods such as liquid chromatography, capillary electrophoresis, and electrochemical methods. Herein, we synthesized a novel fluorescence nanosensor named CMC-CdTe/ZnS based on using quantum dots (QDs). The structure of the prepared nanosensor is confirmed by different analysis methods such as FT-IR, TGA, and TEM. Besides that, the fluorescence intensity response of CMC-CdTe/ZnS QDs in the presence of Epirubicin drug is investigated. Based on obtained results, not only this nanosensor developed, but also the fluorescence quenching was explained by the typical Stern-Volmer equation. The best linear quenching equation for entitled nanosensor in the presence of Epirubicin is F0/F = 0.0346Q + 1.08 (R2 = 0.99), and the detection limit of Epirubicin is around 0.04 × 10-6 mol/L at 25 °C. All of the results display that this method could be reliable and suitable approach for determination of Epirubicin in commercial samples as well.
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Affiliation(s)
| | - Mahdieh Sharifi
- Department of Chemistry, Payame Noor University, PO BOX 19395-3697, Tehran, Iran
| | - Hossein Mahmoodian
- Department of Chemistry, Payame Noor University, PO BOX 19395-3697, Tehran, Iran
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8
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Huang Q, Liu Y, Zhang C, Zhang Z, Liu F, Peng J. Au Quantum Dot/Nickel Tetraminophthalocyanaine-Graphene Oxide-Based Photoelectrochemical Microsensor for Ultrasensitive Epinephrine Detection. ACS OMEGA 2020; 5:8423-8431. [PMID: 32337404 PMCID: PMC7178368 DOI: 10.1021/acsomega.9b02998] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 01/21/2020] [Indexed: 06/11/2023]
Abstract
Owing to the importance of epinephrine as a neurotransmitter and hormone, sensitive methods are required for its detection. We have developed a sensitive photoelectrochemical (PEC) microsensor based on gold quantum dots (Au QDs) decorated on a nickel tetraminophthalocyanine-graphene oxide (NiTAPc-Gr) composite. NiTAPc was covalently attached to the surface of graphene oxide to prepare NiTAPc-Gr, which exhibits remarkable stability and PEC performance. In situ growth of Au QDs on the NiTAPc-Gr surface was achieved using chemical reduction at room temperature. The synthesized materials were characterized by Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, and electrochemical impedance spectroscopy. Au QDs@NiTAPc-Gr provided a much greater photocurrent than NiTAPc-Gr, making it suitable for the ultrasensitive PEC detection of epinephrine. The proposed PEC strategy exhibited a wide linear range of 0.12-243.9 nM with a low detection limit of 17.9 pM (S/N = 3). Additionally, the fabricated PEC sensor showed excellent sensitivity, remarkable stability, and good selectivity. This simple, fast, and low-cost strategy was successfully applied to the analysis of human serum samples, indicating the potential of this method for clinical detection applications.
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Affiliation(s)
- Qing Huang
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
| | - Yuxia Liu
- College of Physics and Electronic Engineering, Guangxi Normal University for Nationalities, Chongzuo 532200, China
| | - Cuizhong Zhang
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
| | - Zhenfa Zhang
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
| | - Fengping Liu
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
| | - Jinyun Peng
- College of Chemistry
and Chemical Engineering, Guangxi Normal
University for Nationalities, Chongzuo 532200, China
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Peng J, Huang Q, Liu Y, Huang Y, Zhang C, Xiang G. Photoelectrochemical Detection of L‐Cysteine with a Covalently Grafted ZnTAPc‐Gr‐based Probe. ELECTROANAL 2020. [DOI: 10.1002/elan.201900505] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jinyun Peng
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo 532200 China
| | - Qing Huang
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo 532200 China
| | - Yuxia Liu
- College of Physics and Electronic EngineeringGuangxi Normal University for Nationalities Chongzuo 532200 China
| | - Yingying Huang
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo 532200 China
| | - Cuizhong Zhang
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo 532200 China
| | - Gang Xiang
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo 532200 China
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10
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Peng J, Huang Q, Liu Y, Liu F, Zhang C, Huang Y, Huang W. The synthesis of graphene oxide covalently linked with nickel tetraamino phthalocyanine: A photoelectrochemical sensor for the analysis of rifampicin irradiated with blue light. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jinyun Peng
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo China
- School of PharmacyHenan University of Traditional Chinese Medicine Zhengzhou China
| | - Qing Huang
- School of PharmacyHenan University of Traditional Chinese Medicine Zhengzhou China
| | - Yuxia Liu
- College of Physics and Electronic EngineeringGuangxi Normal University for Nationalities Chongzuo China
| | - Fengping Liu
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo China
| | - Cuizhong Zhang
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo China
| | - Yingying Huang
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo China
| | - Wei Huang
- College of Chemistry and Chemical EngineeringGuangxi Normal University for Nationalities Chongzuo China
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Wong RC, Lo PC, Ng DK. Stimuli responsive phthalocyanine-based fluorescent probes and photosensitizers. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2017.10.006] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Salerno G, Scarano S, Mamusa M, Consumi M, Giuntini S, Macagnano A, Nativi S, Fragai M, Minunni M, Berti D, Magnani A, Nativi C, Richichi B. A small heterobifunctional ligand provides stable and water dispersible core-shell CdSe/ZnS quantum dots (QDs). NANOSCALE 2018; 10:19720-19732. [PMID: 30256371 DOI: 10.1039/c8nr05566a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We describe a simple method to prepare water dispersible core-shell CdSe/ZnS quantum dots (QDs) 1 by capping QDs with a new thiol-containing heterobifunctional dicarboxylic ligand 4 (DHLA-EDADA). This ligand, obtained on a gram scale through a few synthetic steps, provides a compact layer on the QDs, whose hydrodynamic size in H2O is 15 nm ± 3 nm. The colloidal stability is dramatically enhanced with respect to the well-known (±) α-lipoic acid (DHLA). The ligand affinity towards QDs and the water dispersibility of nanocrystals 1 are addressed by the dithiol groups of DHLA, which chelate the zinc of the shell, and by the dicarboxylic groups of the ethylenediamine-N,N-diacetic acid (EDADA) residue, respectively. The effects of pH, buffer solutions, and biological medium on the stability of QDs 1 were assessed by monitoring the photoluminescence (PL) and hydrodynamic size over time. Highly fluorescent QD dispersions, stable over extended periods of time and over broad pH ranges and buffer types, were obtained. Furthermore, we show that the DHLA-EDADA ligand 4 also endows QDs with functional groups suitable for further conjugation and for metal ion detection. As a case study to illustrate the potential of our approach, we report the preparation and characterization of a highly luminescent orange light emitting polymer-QD 1 composite film.
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Affiliation(s)
- Gianluca Salerno
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 13, 50019 Sesto F.no, FI, Italy.
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13
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Blue-light photoelectrochemical sensor based on nickel tetra-amined phthalocyanine-graphene oxide covalent compound for ultrasensitive detection of erythromycin. Biosens Bioelectron 2018; 106:212-218. [DOI: 10.1016/j.bios.2018.02.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 02/01/2018] [Accepted: 02/02/2018] [Indexed: 01/10/2023]
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14
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Wang X, Luo Y, Xu H, Li D, Wang Y. para-Hydroxy Thiophenol-Coated CdSe/ZnS Quantum Dots as a Turn-On Fluorescent Probe for H2O2 Detection in Aqueous Media. Aust J Chem 2018. [DOI: 10.1071/ch18207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Since hydrogen peroxide plays an important role in various fields, a facile, simple, highly selective, and stable analytic method for H2O2 is desirable. Semiconductor quantum dots (QDs) have acted as a potential alternative for organic fluorophores in fluorescence analytical fields due to their superior optical properties. Herein, we report hydrophilic p-hydroxy thiophenol (p-HTP) coated CdSe/ZnS QDs (denoted as p-HTP-QDs) acting as a selective fluorescence ‘turn-on’ probe for H2O2 in aqueous media. The obtained p-HTP-QD probe exhibits weak fluorescence, which stems from hole transfer from the QDs to p-HTP. The presence of H2O2 induces an oxidative structural transformation of p-HTP in p-HTP-QDs from a phenol structure to an α-hydroxy ketone derivative, which extremely reduces the driving force for hole transfer. Thus, the QDs photoluminescence (PL) was re-switched on. Under optimized conditions, an excellent linear relationship between fluorescence response and H2O2 concentration could be produced with a linear range from 0.309 to 4.900mM. The limit of detection of this probe was found to be 0.135mM. Moreover, the present probe exhibited a high selectivity of H2O2 over other reactive oxygen species/reactive nitrogen species (ROS/RNS) and was successfully used in the detection of H2O2 in real water samples.
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15
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Possibilities and Challenges for Quantitative Optical Sensing of Hydrogen Peroxide. CHEMOSENSORS 2017. [DOI: 10.3390/chemosensors5040028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Lauth J, Grimaldi G, Kinge S, Houtepen AJ, Siebbeles LDA, Scheele M. Ultrafast Charge Transfer and Upconversion in Zinc β-Tetraaminophthalocyanine-Functionalized PbS Nanostructures Probed by Transient Absorption Spectroscopy. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707443] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jannika Lauth
- Chemical Engineering; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Gianluca Grimaldi
- Chemical Engineering; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Sachin Kinge
- Toyota Motor Europe; Materials Research and Development; Hoge Wei 33 1930 Zaventem Belgium
| | - Arjan J. Houtepen
- Chemical Engineering; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Laurens D. A. Siebbeles
- Chemical Engineering; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Marcus Scheele
- Institute of Physical and Theoretical Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+; University of Tübingen; Auf der Morgenstelle 15 72076 Tübingen Germany
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17
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Lauth J, Grimaldi G, Kinge S, Houtepen AJ, Siebbeles LDA, Scheele M. Ultrafast Charge Transfer and Upconversion in Zinc β-Tetraaminophthalocyanine-Functionalized PbS Nanostructures Probed by Transient Absorption Spectroscopy. Angew Chem Int Ed Engl 2017; 56:14061-14065. [DOI: 10.1002/anie.201707443] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/30/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Jannika Lauth
- Chemical Engineering; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Gianluca Grimaldi
- Chemical Engineering; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Sachin Kinge
- Toyota Motor Europe; Materials Research and Development; Hoge Wei 33 1930 Zaventem Belgium
| | - Arjan J. Houtepen
- Chemical Engineering; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Laurens D. A. Siebbeles
- Chemical Engineering; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Marcus Scheele
- Institute of Physical and Theoretical Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+; University of Tübingen; Auf der Morgenstelle 15 72076 Tübingen Germany
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18
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In situ one-pot synthesis of graphitic carbon nitride quantum dots and its 2,2,6,6-tetramethyl(piperidin-1-yl)oxyl derivatives as fluorescent nanosensors for ascorbic acid. Anal Chim Acta 2017; 991:113-126. [DOI: 10.1016/j.aca.2017.07.047] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/19/2017] [Accepted: 07/21/2017] [Indexed: 11/18/2022]
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19
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Achadu OJ, Nyokong T. Graphene quantum dots coordinated to mercaptopyridine-substituted phthalocyanines: Characterization and application as fluorescence "turn ON" nanoprobes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 174:339-347. [PMID: 27984755 DOI: 10.1016/j.saa.2016.11.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/21/2016] [Accepted: 11/26/2016] [Indexed: 06/06/2023]
Abstract
This study reports on the design of novel nanoconjugates of graphene quantum dots (GQDs) and tetra or octa-mercaptopyridine-substituted zinc and aluminium phthalocyanines (Pcs) deployed as fluorescence "turn ON" nanoprobes. The phthalocyanines were separately adsorbed onto the planar structure of graphene quantum dots (GQDs) via π-π stacking interaction to form GQDs-mercaptopyridine Pcs nanoconjugates. The quaternized Pc complexes could also interact with the GQDs through electrostatic attraction due to the positive charges on the Pcs ring substituents and the negative charges on the surface of GQDs. The fluorescence emission of the GQDs was quenched upon coordination to the respective Pcs. However, the fluorescence emission was "turned ON" in the presence of Hg2+ employed as a test analyte. The mechanism of the "turn ON" of the GQDs emission in the nanoconjugates is ascribed to the strong affinity of Hg2+ to bind with the bridging sulfur on the Pcs periphery thereby disrupting the π-π stacking interaction between the GQDs and the Pcs with a consequent "turn ON" of the coordinated GQDs' fluorescence.
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Affiliation(s)
- Ojodomo J Achadu
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
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Achadu OJ, Uddin I, Nyokong T. Fluorescence behavior of nanoconjugates of graphene quantum dots and zinc phthalocyanines. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2015.11.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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21
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Achadu OJ, Nyokong T. Application of graphene quantum dots decorated with TEMPO-derivatized zinc phthalocyanine as novel nanoprobes: probing the sensitive detection of ascorbic acid. NEW J CHEM 2016. [DOI: 10.1039/c6nj01796g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nanocomposite of (2,2,6,6-tetramethylpiperidin-1-yl)oxyl substituted zinc phthalocyanine and graphene quantum dots is a selective fluorescence sensor for ascorbic acid.
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22
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New Nanomaterials and Luminescent Optical Sensors for Detection of Hydrogen Peroxide. CHEMOSENSORS 2015. [DOI: 10.3390/chemosensors3040253] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Dong YP, Gao TT, Zhou Y, Jiang LP, Zhu JJ. Anodic Electrogenerated Chemiluminescence of Ru(bpy)3(2+) with CdSe Quantum Dots as Coreactant and Its Application in Quantitative Detection of DNA. Sci Rep 2015; 5:15392. [PMID: 26472243 PMCID: PMC4607998 DOI: 10.1038/srep15392] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 09/14/2015] [Indexed: 12/27/2022] Open
Abstract
In the present paper, we report that CdSe quantum dots (QDs) can act as the coreactant of Ru(bpy)32+ electrogenerated chemiluminescence (ECL) in neutral condition. Strong anodic ECL signal was observed at ~1.10 V at CdSe QDs modified glassy carbon electrode (CdSe/GCE), which might be mainly attributed to the apparent electrocatalytic effect of QDs on the oxidation of Ru(bpy)32+. Ru(bpy)32+ can be intercalated into the loop of hairpin DNA through the electrostatic interaction to fabricate a probe. When the probe was bound to the CdSe QDs modified on the GCE, the intense ECL signal was obtained. The more Ru(bpy)32+ can be intercalated when DNA loop has larger diameter and the stronger ECL signal can be observed. The loop of hairpin DNA can be opened in the presence of target DNA to release the immobilized Ru(bpy)32+, which can result in the decrease of ECL signal. The decreased ECL signal varied linearly with the concentration of target DNA, which showed the ECL biosensor can be used in the sensitive detection of DNA. The proposed ECL biosensor showed an excellent performance with high specificity, wide linear range and low detection limit.
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Affiliation(s)
- Yong-Ping Dong
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210093, China.,School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Ting-Ting Gao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210093, China.,School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Ying Zhou
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210093, China.,School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Li-Ping Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210093, China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210093, China
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24
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Tshangana C, Nyokong T. Photophysical properties gallium octacarboxy phthalocyanines conjugated to CdSe@ZnS quantum dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:397-404. [PMID: 26143333 DOI: 10.1016/j.saa.2015.06.086] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 06/08/2015] [Accepted: 06/16/2015] [Indexed: 06/04/2023]
Abstract
L-Glutathione (GSH) capped core CdSe (2.3 nm) and core shell CdSe@ZnS quantum dots (QDs) (3.0 nm and 3.5 nm) were coordinated to gallium octacarboxy phthalocyanine (ClGaPc(COOH)8) to form ClGaPc(COOH)8-QDs conjugates. An efficient transfer of energy from the QDs to the Pcs was demonstrated through Förster resonance energy transfer (FRET), the FRET efficiencies in all cases was above 50%. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were also determined for the conjugates. There was a decrease in the fluorescence lifetimes of ClGaPc(COOH)8 in the presence of all the QDs, due to the heavy atom effect. The triplet quantum yields increased in the conjugates. The lifetimes also became longer for the conjugates compared to Pc alone.
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Affiliation(s)
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
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25
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Challenges and advances in quantum dot fluorescent probes to detect reactive oxygen and nitrogen species: A review. Anal Chim Acta 2015; 862:1-13. [DOI: 10.1016/j.aca.2014.08.036] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 08/13/2014] [Accepted: 08/15/2014] [Indexed: 01/04/2023]
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26
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Dong YP, Gao TT, Zhou Y, Zhu JJ. Electrogenerated Chemiluminescence Resonance Energy Transfer between Luminol and CdSe@ZnS Quantum Dots and Its Sensing Application in the Determination of Thrombin. Anal Chem 2014; 86:11373-9. [DOI: 10.1021/ac5033319] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Yong-Ping Dong
- State Key Laboratory
of Analytical Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, China
- School
of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Ting-Ting Gao
- State Key Laboratory
of Analytical Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, China
- School
of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Ying Zhou
- School
of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Jun-Jie Zhu
- State Key Laboratory
of Analytical Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, China
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27
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Adegoke O, Nyokong T. Unsymmetrically Substituted Nickel Triazatetra-Benzcorrole and Phthalocynanine Complexes: Conjugation to Quantum Dots and Applications as Fluorescent "Turn ON" Sensors. J Fluoresc 2013; 24:481-91. [PMID: 24162835 DOI: 10.1007/s10895-013-1317-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 10/09/2013] [Indexed: 11/28/2022]
Abstract
We report on the design and application of fluorescent nanoprobes based on the covalent linking of L-glutathione-capped CdSe@ZnS quantum dots (QDs) to newly synthesized unsymmetrically substituted nickel mercaptosuccinic acid triazatetra-benzcorrole (3) and phthalocyanine (4) complexes. Fluorescence quenching of the QDs occurred on conjugation to complexes 3 or 4. The nanoprobes were selectively screened in the presence of different cations and Hg(2+) showed excellent affinity in "turning ON" the fluorescence of the nanoprobes. Experimental results showed that the sensitivity of QDs-4 towards Hg(2+) was much higher than that of QDs-3 nanoprobe. The mechanism of reaction has been elucidated based on the ability of Hg(2+) to coordinate with the sulphur atom of the Ni complex ring and apparently "turn ON" the fluorescence of the linked QDs.
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Affiliation(s)
- Oluwasesan Adegoke
- Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa.
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