128062 20241125101145.0 doi 10.1016/j.dyepig.2023.111630 sideral 135253 ART-2023-135253 eng Melendo, Irene A cyclometalated N-heterocyclic carbene and acetylacetonate ligands in a phosphorescent Pt(II) dye for sensing glucose 2023 Access copy available to the general public Unrestricted New β-diketonate platinum (II) complexes, containing a cyclometalated N-heterocyclic carbene [Pt(Naph^C*iPr)(acac)] (3A) (HNaph^C*-κC* = 3-isopropyl-1-(naphthalen-2-yl)-1H-imidazole-2-ylidene), or a cyclometalated pyrazole, [Pt(Naph^Npz)(acac)] (3B) (HC^Npz = 1-(naphthalen-2-yl)-1H-pyrazole) and [Pt(Naph^Ndmpz)(acac)] (3B') (HC^Ndmpz = 1-(naphthalen-2-yl)-1H-3,5-dimethylpyrazole) have been prepared and characterized. Their absorption and emission properties in films of ethyl cellulose (EC) were determined along with those of the already reported for complex [Pt(Naph^C*Me)(acac)] (3A'). They showed that all four β-diketonate complexes display a bright phosphorescent emission with maxima in the blue region (λmax ∼ 480 nm for 3A and 3A'; 490 nm 3B and 3B'). The higher quantum yield (QY), longer decay times and greater oxygen sensitivity were exhibited by the Naph^C* derivatives, compared to the Naph^N ones. Polyacrylamide membranes with entrapped 3A' as dye, and glucose oxidase (GOx) enzyme were used for monitoring glucose level. The RSD is about 5% and the detection limit is at ∼5·10−4 M, with a response time usually of 10–15 min working in stop-flow mode. These platinum-based membranes respond reversibly to glucose for, at least, 20 measures. 3A’ is the first Pt(II) complex bearing a cyclometalated N-heterocyclic carbene ever used as dye for sensing glucose. info:eu-repo/grantAgreement/ES/DGA/E17-20R info:eu-repo/grantAgreement/ES/DGA/E25-20R info:eu-repo/grantAgreement/ES/MICINN/PID2021-122869NB-I00 info:eu-repo/grantAgreement/ES/MINECO/PID2019-105408GB-I00 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 4.1 2023 MATERIALS SCIENCE, TEXTILES 3 / 30 = 0.1 2023 Q1 T1 CHEMISTRY, APPLIED 20 / 74 = 0.27 2023 Q2 T1 ENGINEERING, CHEMICAL 49 / 170 = 0.288 2023 Q2 T1 0.669 2023 Process Chemistry and Technology 2023 Q2 Chemical Engineering (miscellaneous) 2023 Q2 8.2 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Camacho-Aguayo, Javier Universidad de Zaragoza (orcid)0000-0003-1654-3803 Paziresh, Sareh Fuertes, Sara (orcid)0000-0003-1812-3175 Martín, Antonio (orcid)0000-0002-4808-574X Marcos, Susana de Universidad de Zaragoza (orcid)0000-0002-7902-6005 Galbán, Javier Universidad de Zaragoza (orcid)0000-0002-8973-5104 Sicilia, Violeta Universidad de Zaragoza (orcid)0000-0002-0257-0483 2010 760 Universidad de Zaragoza Dpto. Química Inorgánica Área Química Inorgánica 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 219 (2023), 111630 [9 pp.] Dyes pigm. Dyes and Pigments 0143-7208 3709841 http://zaguan.unizar.es/record/128062/files/texto_completo.pdf Versión publicada 2255150 http://zaguan.unizar.es/record/128062/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:128062 articulos driver 2024-11-22-12:04:06 ARTICLE