A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis
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)....
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/710215 |
| Acceso en línea: | http://hdl.handle.net/10486/710215 https://dx.doi.org/10.1016/j.aca.2021.338940 |
| Access Level: | acceso abierto |
| Palabra clave: | Cucurbit[8]uril Diamond nanoparticles Methyl viologen Molybdenum disulphide Supramolecular chemistry Química |
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A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysisBlanco Gil, ElíasPozo Vázquez, María delPetit Domínguez, María DoloresCasero Junquera, María ElenaQuintana Mani, María del CarmenRocha, LauraVázquez, LuisCucurbit[8]urilDiamond nanoparticlesMethyl viologenMolybdenum disulphideSupramolecular chemistryQuímicaWe 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)The authors acknowledge financial support from the Spanish MINECO ( MAT2017-85089-C2-1-R , MAT2017-85089-C2-2-R , PID2020-113142RB-C21 , PID2020-113142RB-C22 ) and the Comunidad Autónoma de Madrid ( P2018/NMT-4349 , TRANSNANOAVANSENS-CM).ElsevierDepartamento de Química Analítica y Análisis InstrumentalFacultad de Ciencias20212021-10-16research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/710215https://dx.doi.org/10.1016/j.aca.2021.338940reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7102152026-06-23T12:46:27Z |
| dc.title.none.fl_str_mv |
A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis |
| title |
A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis |
| spellingShingle |
A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis Blanco Gil, Elías Cucurbit[8]uril Diamond nanoparticles Methyl viologen Molybdenum disulphide Supramolecular chemistry Química |
| title_short |
A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis |
| title_full |
A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis |
| title_fullStr |
A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis |
| title_full_unstemmed |
A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis |
| title_sort |
A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis |
| dc.creator.none.fl_str_mv |
Blanco Gil, Elías Pozo Vázquez, María del Petit Domínguez, María Dolores Casero Junquera, María Elena Quintana Mani, María del Carmen Rocha, Laura Vázquez, Luis |
| author |
Blanco Gil, Elías |
| author_facet |
Blanco Gil, Elías Pozo Vázquez, María del Petit Domínguez, María Dolores Casero Junquera, María Elena Quintana Mani, María del Carmen Rocha, Laura Vázquez, Luis |
| author_role |
author |
| author2 |
Pozo Vázquez, María del Petit Domínguez, María Dolores Casero Junquera, María Elena Quintana Mani, María del Carmen Rocha, Laura Vázquez, Luis |
| author2_role |
author author author author author author |
| dc.contributor.none.fl_str_mv |
Departamento de Química Analítica y Análisis Instrumental Facultad de Ciencias |
| dc.subject.none.fl_str_mv |
Cucurbit[8]uril Diamond nanoparticles Methyl viologen Molybdenum disulphide Supramolecular chemistry Química |
| topic |
Cucurbit[8]uril Diamond nanoparticles Methyl viologen Molybdenum disulphide Supramolecular chemistry Química |
| description |
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) |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021-10-16 |
| dc.type.none.fl_str_mv |
research article http://purl.org/coar/resource_type/c_2df8fbb1 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10486/710215 https://dx.doi.org/10.1016/j.aca.2021.338940 |
| url |
http://hdl.handle.net/10486/710215 https://dx.doi.org/10.1016/j.aca.2021.338940 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:Biblos-e Archivo. Repositorio Institucional de la UAM instname:Universidad Autónoma de Madrid |
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Universidad Autónoma de Madrid |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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