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Martínez-Moro R, Del Pozo M, Casero E, Petit-Domínguez MD, Quintana C. MoS 2 quantum dots-based optical sensing platform for the analysis of synthetic colorants. Application to quinoline yellow determination. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123042. [PMID: 37356389 DOI: 10.1016/j.saa.2023.123042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/17/2023] [Indexed: 06/27/2023]
Abstract
In this work, a novel fluorescence sensor has been designed to solve the actual need of new fast and inexpensive sensing platforms for the analysis of synthetic colorants. It is based on MoS2 quantum dots obtained by a hydrothermal method and incorporated as fluorophore into the matrix of PVC membranes, which are deposited on quartz substrates by spin-coating. It was proven, as in these conditions, MoS2 quantum dots maintain the fluorescent properties that they present in solution. Experiments carried out in solution displayed a maximum emission when they were excited under 310 nm. This initial fluorescence decreases linearly in presence of increasing concentrations of various synthetic colorants namely quinoline yellow, tartrazine, sunset yellow, allura red, ponceau 4R and carmoisine. The two possible mechanisms that can explain this quenching effect, colorants absorbing photons emitted by quantum dots and/or competing with the nanomaterial for photons coming from the excitation source, were evaluated. The most pronounced effect was observed with quinoline yellow, as a result of a mixed mechanism. The optimized methodology developed for the determination of quinoline yellow showed a linear concentration range between 5.4 and 55.0 µg with a limit of detection of 1.6 µg. The sensor was applied to the determination of quinoline yellow in a food colour paste obtaining results in good agreement with those obtained by HPLC-UV-vis measurements.
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Affiliation(s)
- Rut Martínez-Moro
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias. c/ Francisco Tomás y Valiente, N°7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias. c/ Francisco Tomás y Valiente, N°7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias. c/ Francisco Tomás y Valiente, N°7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias. c/ Francisco Tomás y Valiente, N°7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias. c/ Francisco Tomás y Valiente, N°7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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H G, S V, Y S N, Devendrappa H. A CTAB-assisted PANI-MoS 2 nanosheet flower morphology for the highly sensitive electrochemical detection of hydrazine. RSC Adv 2023; 13:34891-34903. [PMID: 38035240 PMCID: PMC10687520 DOI: 10.1039/d3ra06003a] [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: 09/03/2023] [Accepted: 11/02/2023] [Indexed: 12/02/2023] Open
Abstract
In this work, cetyl trimethylammonium bromide (CTAB)-assisted polyaniline-molybdenum disulfide (CPANI-MoS2) nanosheets with a flower morphology have been synthesized through in situ polymerization and a hydrothermal method. The composite was analyzed for structural modification through X-ray diffraction (XRD) to examine chemical changes and the presence of functional groups via Fourier transform infrared (FTIR) and Raman spectroscopy techniques. The surface morphology was identified by field-emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HR-TEM) techniques. The CPANI-MoS2 nanosheet glassy carbon electrode (GCE) offers a novel strategy for the electrochemical detection of carcinogenic hydrazine. The cyclic voltammetry (CV) curve demonstrated a quasi-reversible behaviour with a high-surface area. Furthermore, differential pulse voltammetry (DPV) analysis of hydrazine detection showed a wide linear range from 10 μM to 100 μM, a low limit of detection of 0.40 μM, and a high sensitivity of 7.23 μA μM cm-2. The determination of hydrazine in a water sample and the recovery percentage were found to be 100.31% and 103.73%, respectively. The CPANI-MoS2 nanosheet GCE significantly contributed to the high electroanalytical oxidation activity due to the CTAB surfactant modifying the flower-like nanosheet morphology, which enables the easy adsorption of hydrazine analyte species and exhibits a high current rate with a rapid detection response.
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Affiliation(s)
- Ganesha H
- Department of Physics Mangalore University Mangalagangothri-574199 India
| | - Veeresh S
- Department of Physics Mangalore University Mangalagangothri-574199 India
| | - Nagaraju Y S
- Department of Physics Mangalore University Mangalagangothri-574199 India
| | - H Devendrappa
- Department of Physics Mangalore University Mangalagangothri-574199 India
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Kirschbaum T, von Seggern B, Dzubiella J, Bande A, Noé F. Machine Learning Frontier Orbital Energies of Nanodiamonds. J Chem Theory Comput 2023; 19:4461-4473. [PMID: 37053438 DOI: 10.1021/acs.jctc.2c01275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Nanodiamonds have a wide range of applications including catalysis, sensing, tribology, and biomedicine. To leverage nanodiamond design via machine learning, we introduce the new data set ND5k, consisting of 5089 diamondoid and nanodiamond structures and their frontier orbital energies. ND5k structures are optimized via tight-binding density functional theory (DFTB) and their frontier orbital energies are computed using density functional theory (DFT) with the PBE0 hybrid functional. From this data set we derive a qualitative design suggestion for nanodiamonds in photocatalysis. We also compare recent machine learning models for predicting frontier orbital energies for similar structures as they have been trained on (interpolation on ND5k), and we test their abilities to extrapolate predictions to larger structures. For both the interpolation and extrapolation task, we find the best performance using the equivariant message passing neural network PaiNN. The second best results are achieved with a message passing neural network using a tailored set of atomic descriptors proposed here.
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Affiliation(s)
- Thorren Kirschbaum
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Department of Mathematics and Computer Science, Freie Universität Berlin, Arnimallee 12, 14195 Berlin, Germany
| | - Börries von Seggern
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Joachim Dzubiella
- Institute of Physics, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104 Freiburg im Breisgau, Germany
| | - Annika Bande
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Frank Noé
- Department of Mathematics and Computer Science, Freie Universität Berlin, Arnimallee 12, 14195 Berlin, Germany
- Microsoft Research AI4Science, Karl-Liebknecht Str. 32, 10178 Berlin, Germany
- Department of Physics, Freie Universität Berlin, Arnimallee 12, 14195 Berlin, Germany
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
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Martínez-Moro R, Del Pozo M, Vázquez L, Martín-Gago JA, Petit-Domínguez MD, Casero E, Quintana C. Electrochemical sensor based on the synergy between Cucurbit[8]uril and 2D-MoS 2 for enhanced melatonin quantification. Sci Rep 2023; 13:10378. [PMID: 37369678 DOI: 10.1038/s41598-023-37401-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 06/21/2023] [Indexed: 06/29/2023] Open
Abstract
We present the development of an electrochemical sensor towards melatonin determination based on the synergistic effect between MoS2 nanosheets and cucurbit[8]uril. For the sensor construction cucurbit[8]uril suspensions were prepared in water, and MoS2 nanosheets were obtained by liquid exfoliation in ethanol:water. The sensing platform was topographically characterized by Atomic Force Microscopy. Electrochemical Impedance Spectroscopy experiments allowed us to study the charge transfer process during melatonin oxidation. Moreover, stoichiometry of the resulting complex has also been determined. After the optimization of the sensor construction and the experimental variables involved in the Differential Pulse Voltammetric response of melatonin, detection limit of 3.80 × 10-7 M, relative errors minor than 3.8% and relative standard deviation lower than 4.4% were obtained. The proposed sensor has been successfully applied to melatonin determination in pharmaceutical and biological samples as human urine and serum, with very good recoveries ranging from 90 to 102%.
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Affiliation(s)
- Rut Martínez-Moro
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Vázquez
- Instituto de Ciencia de Materiales de Madrid (CSIC), c/ Sor Juana Inés de la Cruz Nº3. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - José A Martín-Gago
- Instituto de Ciencia de Materiales de Madrid (CSIC), c/ Sor Juana Inés de la Cruz Nº3. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain.
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental. Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain.
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Garsed R, Vázquez L, Casero E, Petit-Domínguez MD, Quintana C, Del Pozo M. 2D-ReS 2 & diamond nanoparticles-based sensor for the simultaneous determination of sunset yellow and tartrazine in a multiple-pulse amperometry FIA system. Talanta 2023; 265:124842. [PMID: 37393712 DOI: 10.1016/j.talanta.2023.124842] [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: 02/17/2023] [Revised: 06/06/2023] [Accepted: 06/19/2023] [Indexed: 07/04/2023]
Abstract
We present a flow injection system with a multiple pulse amperometric detection (FIA-MPA)-based methodology for the simultaneous analysis of sunset yellow and tartrazine. As transducer, we have developed a novel electrochemical sensor based on the synergistic effect of ReS2 nanosheets and diamond nanoparticles (DNPs). Among several transition dichalcogenides for the sensor development, we have selected ReS2 nanosheets since it yields a better response towards both colourants. Scanning probe microscopy characterization shows that the surface sensor is composed by scattered and stacked ReS2 flakes and large aggregates of DNPs. With this system, the gap between the oxidation potential values of sunset yellow and tartrazine is wide enough to allow the simultaneous determination of both dyes. Under the optimum potential pulse conditions (0.8 and 1.2 V) during 250 ms, a flow rate of 3 mL/min and a volume injection of 250 μL, detection limits of 3.51 × 10-7 M and 2.39 × 10-7 M for sunset yellow and tartrazine, respectively, were obtained. This method exhibits good accuracy and precision with Er minor than 13% and RSD lower than 8% with a sampling frequency of 66 samples per hour. Pineapple jelly samples were analyzed by the standard addition method, obtaining 53.7 mg/kg and 29.0 mg/kg of sunset yellow and tartrazine, respectively. From the analysis of fortified samples, recoveries of 94% and 105% were obtained.
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Affiliation(s)
- Ricardo Garsed
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid. Campus de Excelencia de La Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Luis Vázquez
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Campus de Excelencia de La Universidad Autónoma de Madrid, C/ Sor Juana Inés de La Cruz Nº3, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid. Campus de Excelencia de La Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - M Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid. Campus de Excelencia de La Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid. Campus de Excelencia de La Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid. Campus de Excelencia de La Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain.
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Uçar A, Aydoğdu Tığ G, Er E. Recent advances in two dimensional nanomaterial-based electrochemical (bio)sensing platforms for trace-level detection of amino acids and pharmaceuticals. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.117027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Martínez-Moro R, Del Pozo M, Mendieta-Moreno JI, Collado A, Canola S, Vázquez L, Petit-Domínguez MD, Casero E, Quintana C, Martín-Gago JA. Unveiling the Collaborative Effect at the Cucurbit[8]uril-MoS 2 Hybrid Interface for Electrochemical Melatonin Determination. Chemistry 2023; 29:e202203244. [PMID: 36534440 PMCID: PMC10107440 DOI: 10.1002/chem.202203244] [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: 10/17/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 12/23/2022]
Abstract
Host-guest interactions are of paramount importance in supramolecular chemistry and in a wide range of applications. Particularly well known is the ability of cucurbit[n]urils (CB[n]) to selectively host small molecules. We show that the charge transfer and complexation capabilities of CB[n] are retained on the surface of 2D transition metal dichalcogenides (TMDs), allowing the development of efficient electrochemical sensing platforms. We unveil the mechanisms of host-guest recognition between the MoS2 -CB[8] hybrid interface and melatonin (MLT), an important molecular regulator of vital constants in vertebrates. We find that CB[8] on MoS2 organizes the receptor portals perpendicularly to the surface, facilitating MLT complexation. This advantageous adsorption geometry is specific to TMDs and favours MLT electro-oxidation, as opposed to other 2D platforms like graphene, where one receptor portal is closed. This study rationalises the cooperative interaction in 2D hybrid systems to improve the efficiency and selectivity of electrochemical sensing platforms.
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Affiliation(s)
- Rut Martínez-Moro
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid, c/Francisco Tomás y Valiente, N° 7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid, c/Francisco Tomás y Valiente, N° 7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Jesús I Mendieta-Moreno
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10, Prague 6, CZ 162 00, Czech Republic.,Departamento de Física Teórica de la Materia Condensada, Facultad de Ciencias, Universidad Autónoma de Madrid, c/Francisco Tomás y Valiente, N° 7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Alba Collado
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, c/Francisco Tomás y Valiente, N° 7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Sofia Canola
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10, Prague 6, CZ 162 00, Czech Republic
| | - Luis Vázquez
- ESISNA group, Instituto de Ciencia de Materiales de Madrid (CSIC), c/Sor Juana Inés de la Cruz 3, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid, c/Francisco Tomás y Valiente, N° 7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid, c/Francisco Tomás y Valiente, N° 7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid, c/Francisco Tomás y Valiente, N° 7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - José A Martín-Gago
- ESISNA group, Instituto de Ciencia de Materiales de Madrid (CSIC), c/Sor Juana Inés de la Cruz 3, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
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Tajik S, Dourandish Z, Nejad FG, Beitollahi H, Jahani PM, Di Bartolomeo A. Transition metal dichalcogenides: Synthesis and use in the development of electrochemical sensors and biosensors. Biosens Bioelectron 2022; 216:114674. [DOI: 10.1016/j.bios.2022.114674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 08/14/2022] [Accepted: 08/28/2022] [Indexed: 11/02/2022]
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Soliman SS, Sedik GA, Elghobashy MR, Zaazaa HE, Saad AS. Greenness Assessment Profile of a QbD Screen-Printed Sensor for Real-Time Monitoring of Sodium Valproate. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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10
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Biosensors modern technology in determination of anti-epileptic drugs (AEDs). Clin Chim Acta 2022; 533:175-182. [PMID: 35798056 DOI: 10.1016/j.cca.2022.06.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/19/2022] [Accepted: 06/24/2022] [Indexed: 12/17/2022]
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Electrochemical sensor based on the polyoxometalate nanocluster [(NH4)12[Mo36(NO)4O108(H2O)16]·33H2O and molybdenum disulfide nanocomposite materials for simultaneous detection of dihydroxybenzene isomers. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Blanco E, Rocha L, Pozo MD, Vázquez L, Petit-Domínguez MD, Casero E, Quintana C. A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis. Anal Chim Acta 2021; 1182:338940. [PMID: 34602204 DOI: 10.1016/j.aca.2021.338940] [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: 05/31/2021] [Revised: 07/20/2021] [Accepted: 08/10/2021] [Indexed: 11/15/2022]
Abstract
We develop an electrochemical sensor by using 2D-transition metal dichalcogenides (TMD), specifically MoS2, and nanoparticles stabilized with cucurbit[8]uril (CB[8]) incorporated together with them. Two different nanoparticles are assayed: diamond nanoparticles (DNPs) and gold nanoparticles (AuNp). 0D materials, together with TMD, provide increased conductivity and active surface while the macrocycle CB[8] affords selectivity towards the guest methyl viologen (MV2+), also named paraquat. Glassy Carbon (GC) electrodes are modified by drop-casting of suspensions of MoS2, followed by either a CB[8]-DNPs hybrid dispersion or a CB[8]-AuNp suspension. Atomic force microscopy is employed for the morphological characterization of the electrochemical sensor surface while cyclic voltammetry and electrochemical impedance spectroscopy techniques allow the electrochemical characterization of the sensor. The well-stablished signals of CB[8]-encapsulated MV2+ arise in voltammetric measurements when the macrocycle modifies the 0D-materials. Once the sensor construction and differential pulse voltammetry parameters have been optimized for quantification purposes, calibration procedures are performed with the platform GC/MoS2/CB[8]-DNPs. This sensing platform shows linear relations between peak intensity and the MV2+ concentration in the linear concentration range of (0.73-8.0) · 10-6 M with a limit of detection of 2.2 · 10-7 M. Analyses of river water samples fortified with MV2+ at the μM level shows recoveries of 100% with RSD values of 6.4% (n = 3).
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Affiliation(s)
- Elías Blanco
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Laura Rocha
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Vázquez
- ESISNA Group, Instituto de Ciencia de Materiales de Madrid (CSIC), C/ Sor Juana Inés de La Cruz, Nº3. Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain.
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Blanco E, Martínez JI, Parra-Alfambra AM, Petit-Domínguez MD, Del Pozo M, Martín-Gago JA, Casero E, Quintana C. Fluorescence enhancement of fungicide thiabendazole by van der Waals interaction with transition metal dichalcogenide nanosheets for highly specific sensors. NANOSCALE 2019; 11:23156-23164. [PMID: 31720671 PMCID: PMC7116300 DOI: 10.1039/c9nr02794g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Many molecules quench their fluorescence upon adsorption on surfaces. Herein we show that the interaction of thiabendazole, a widespread used fungicide of the benzimidazole family, with nanosheets of transition metal dichalcogenides, particularly of WS2, leads to a significant increase, more than a factor of 5, of the fluorescence yield. This surprising effect is rationalized by DFT calculations and found to be related to the inhibition of the intramolecular rotation between the benzimidazole and thiazole groups due to a bonding rigidization upon interaction with the MoS2 surface. This non-covalent adsorption leads to a redistribution of the molecular LUMO that blocks the non-radiative energy dissipation channel. This unusual behaviour does not operate either for other molecules of the same benzimidazole family or for other 2D materials (graphene or graphene oxide). Moreover, we found that a linear dependence of the emission with the concentration of thiabendazole in solution, which combined with the specificity of the process, allows the development of a highly sensitive and selective method towards thiabendazole determination that can be applied to real river water samples. An excellent detection limit of 2.7 nM, comparable to the best performing reported methods, is obtained with very good accuracy (Er ≤ 6.1%) and reproducibility (RSD ≤ 4.1%) in the concentration range assayed.
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Affiliation(s)
- Elías Blanco
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Francisco Tomás y Valiente, N°7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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Del Pozo M, Sánchez-Sánchez C, Vázquez L, Blanco E, Petit-Domínguez MD, Martín-Gago JÁ, Casero E, Quintana C. Differential pulse voltammetric determination of the carcinogenic diamine 4,4'-oxydianiline by electrochemical preconcentration on a MoS 2 based sensor. Mikrochim Acta 2019; 186:793. [PMID: 31734791 DOI: 10.1007/s00604-019-3906-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 10/11/2019] [Indexed: 01/03/2023]
Abstract
An electrochemical sensor for the carcinogen 4,4'-oxydianiline (Oxy) is described. The method is based on the ability of MoS2 nanosheets to preconcentrate Oxy. A glassy carbon electrode (GCE) was covered, by drop-casting, with MoS2 nanosheets that were obtained by exfoliation. X-Ray photoemission spectroscopy indicates that Oxy accumulates on the MoS2 nanosheets through an electropolymerization process similar to that reported for aniline. Both electrochemical impedance spectroscopy and atomic force microscopy were used to characterize the electrode surface at the different stages of device fabrication. Employing the current measured at +0.27 V vs. Ag/AgCl after Oxy adsorption, the modified GCE enables the voltammetric detection of Oxy at 80 nM levels with relative errors and relative standard deviations of <8.3 and <5.6%, respectively, at all the concentrations studied. The method was applied to the selective determination of Oxy in spiked river water samples. Very good selectivity and recoveries of around 95% in average are found. Graphical abstractSchematic representation of 4,4-oxydianiline electrochemical polymerization and preconcentration onto molybdenum disulfide nanosheets for the diamine determination in river waters.
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Affiliation(s)
- María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, N°7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Carlos Sánchez-Sánchez
- ESISNA Group, Materials Science Factory, Instituto de Ciencia de Materiales de Madrid (CSIC), c/ Sor Juana Inés de la Cruz N°3. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Vázquez
- ESISNA Group, Materials Science Factory, Instituto de Ciencia de Materiales de Madrid (CSIC), c/ Sor Juana Inés de la Cruz N°3. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elías Blanco
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, N°7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, N°7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - José Ángel Martín-Gago
- ESISNA Group, Materials Science Factory, Instituto de Ciencia de Materiales de Madrid (CSIC), c/ Sor Juana Inés de la Cruz N°3. Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, N°7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, N°7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain.
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Aziz A, Asif M, Ashraf G, Azeem M, Majeed I, Ajmal M, Wang J, Liu H. Advancements in electrochemical sensing of hydrogen peroxide, glucose and dopamine by using 2D nanoarchitectures of layered double hydroxides or metal dichalcogenides. A review. Mikrochim Acta 2019; 186:671. [DOI: 10.1007/s00604-019-3776-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 08/21/2019] [Indexed: 01/19/2023]
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16
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Rojas D, Della Pelle F, Del Carlo M, Fratini E, Escarpa A, Compagnone D. Nanohybrid carbon black-molybdenum disulfide transducers for preconcentration-free voltammetric detection of the olive oil o-diphenols hydroxytyrosol and oleuropein. Mikrochim Acta 2019; 186:363. [PMID: 31104163 DOI: 10.1007/s00604-019-3418-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 04/05/2019] [Indexed: 11/26/2022]
Abstract
A new hybrid nanomaterial is used in a screen-printed electrode (SPE) for sensing of the ortho-diphenols oleuropein (OLEU) and hydroxytyrosol (HYT) in extra virgin olive oil (EVOO) and related samples. The hybrid material consists of carbon black (CB) and molybdenum disulfide (MoS2). In comparison with individual nanomaterials, CB-MoS2 exhibits improved charge-transfer ability, low charge-transfer resistance, high electrical conductivity and enhanced electrocatalysis. The sensor is also characterized by (a) high sensitivity that avoids the need for adsorptive voltammetry, (b) reduced analysis time, and (c) high anti-fouling ability (electrode RSDOLEU < 8%, for n = 10). OLEU can be detected in the 0.3 to 30 μM concentration range with a 0.1 μM LOD, and HYT in the 2-100 μM range with a 1 μM LOD. A comparison of the data obtained by this sensor and by HPLC-UV exhibited high correlation (r = 0.995, p < 0.05). These data revealed the reliability of CB-MoS2 for analysis of complex EVOO and related samples. Graphical abstract CB-MoS2-based electrochemical sensor for fast and reliable assessment of total ortho-diphenols antioxidants in olive oils.
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Affiliation(s)
- Daniel Rojas
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, 64023, Teramo, Italy
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Alcalá de Henares, E-28871, Madrid, Spain
| | - Flavio Della Pelle
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, 64023, Teramo, Italy
| | - Michele Del Carlo
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, 64023, Teramo, Italy
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, via della Lastruccia 3 Sesto Fiorentino, I-50019, Florence, Italy
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Alcalá de Henares, E-28871, Madrid, Spain.
- Chemical Research Institute "Andres M. del Rio", University of Alcalá, E-28871, Madrid, Spain.
| | - Dario Compagnone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, 64023, Teramo, Italy.
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Vilian ATE, Dinesh B, Kang SM, Krishnan UM, Huh YS, Han YK. Recent advances in molybdenum disulfide-based electrode materials for electroanalytical applications. Mikrochim Acta 2019; 186:203. [PMID: 30796594 DOI: 10.1007/s00604-019-3287-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/29/2019] [Indexed: 01/08/2023]
Abstract
The primary objective of this review article is to summarize the development and structural diversity of 2D/3D molybdenum disulfide (MoS2) based modified electrodes for electrochemical sensors and biosensor applications. Hydrothermal, mechanical, and ultrasonic techniques and solution-based exfoliation have been used to synthesize graphene-like 2D MoS2 layers. The unique physicochemical properties of MoS2 and its nanocomposites, including high mechanical strength, high carrier transport, large surface area, excellent electrical conductivity, and rapid electron transport rate, render them useful as efficient transducers in various electrochemical applications. The present review summarizes 2D/3D MoS2-based nanomaterials as an electrochemical platform for the detection and analysis of various biomolecules (e.g., neurotransmitters, NADH, glucose, antibiotics, DNA, proteins, and bacteria) and hazardous chemicals (e.g., heavy metal ions, organic compounds, and pesticides). The substantial improvements that have been achieved in the performance of enzyme-based amperometry, chemiluminescence, and nucleic acid sensors incorporating MoS2-based chemically modified electrodes are also addressed. We also summarize key sensor parameters such as limits of detection (LODs), sensitivity, selectivity, response time, and durability, as well as real applications of the sensing systems in the environmental, pharmaceutical, chemical, industrial, and food analysis fields. Finally, the remaining challenges in designing MoS2 nanostructures suitable for electroanalytical applications are outlined. Graphical abstract • MoS2 based materials exhibit high conductivity and improved electrochemical performance with great potential as a sensing electrode. • The role of MoS2 nanocomposite films and their detection strategies were reviewed. • Biomarkers detection for disease identification and respective clinical treatments were discussed. • Future Challenges, as well as possible research development for "MoS2 nanocomposites", are suggested.
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Affiliation(s)
- A T Ezhil Vilian
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Bose Dinesh
- Center for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, 613 401, India
| | - Sung-Min Kang
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, Incheon, 22212, Republic of Korea
| | - Uma Maheswari Krishnan
- Center for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, 613 401, India.
| | - Yun Suk Huh
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, Incheon, 22212, Republic of Korea.
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea.
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