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1.
13 p, 1.4 MB Improved biosensing of Legionella by integrating filtration and immunomagnetic separation of the bacteria retained in filters / Mesas Gómez, Melania (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ; Molina-Moya, Barbara (Institut Germans Trias i Pujol) ; de Araújo, Bárbara Camila (Universidade Estadual Paulista. Department of Analytical Chemistry) ; Boldrin Zanoni, Maria Valnice (Universidade Estadual Paulista. Department of Analytical Chemistry) ; Julián Gómez, Esther (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Domínguez, José (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Pividori, María Isabel (Universitat Autònoma de Barcelona. Departament de Química)
A novel approach is presented that combines filtration and the direct immunomagnetic separation of the retained bacteria Legionella in filters, for further electrochemical immunosensing. This strategy allows for the separation and preconcentration of the water-borne pathogen from high-volume samples, up to 1000 mL. [...]
2024 - 10.1007/s00604-023-06122-1
Mikrochimica acta, Vol. 191, Issue 2 (February 2024) , art. 82  
Registre complet - Creative Commons
2.
13 p, 2.0 MB Microflow injection analysis based on modular 3D platforms and colorimetric detection for Fe(III) monitoring in a wide concentration range / Ricart, David (Universitat Politècnica de Catalunya) ; Dorado, Antonio David (Universitat Politècnica de Catalunya) ; Lao-Luque, Conxita (Universitat Politècnica de Catalunya) ; Baeza Labat, Maria del Mar (Universitat Autònoma de Barcelona. Departament de Química)
A modular microflow injection analysis (microFIA) system for the determination of Fe(III) in a bioleaching reactor has been designed, developed and validated. The different modules of the analyzer (mixer, diluter, disperser and detector) were 3D-printed. [...]
2023 - 10.1007/s00604-023-06029-x
Mikrochimica acta, Vol. 191 (December 2023) , art. 3  
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3.
11 p, 1.8 MB Live synthesis of selective carbon dots as fluorescent probes for cobalt determination in water with an automatic microanalyzer / Pascual-Esco, Alex (Universitat Autònoma de Barcelona. Departament de Química) ; Lleonart, Pere (Universitat Autònoma de Barcelona. Departament de Química) ; Calvo-Lopez, Antonio (Universitat Autònoma de Barcelona. Departament de Química) ; Alonso Chamarro, Julián (Universitat Autònoma de Barcelona. Departament de Química) ; Puyol Bosch, M. del Mar (Universitat Autònoma de Barcelona. Departament de Química)
A new strategy integrating the straight synthesis of carbon dots (CDs) and their direct use for the determination of heavy metals by means of fuorescence quenching is presented. The proposal consists of a modular analyzer, which includes a low temperature co-fred ceramics (LTCC) microreactor for the synthesis of CDs and a cyclic olefn copolymer (COC) microfuidic platform, which automatically performs a reverse fow injection analysis (rFIA) protocol for the determination of heavy metal ions in water by CD fuorescence quenching. [...]
2023 - 10.1007/s00604-023-05975-w
Mikrochimica acta, Vol. 190, Issue 10 (September 2023) , art. 400  
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4.
9 p, 872.7 KB Validated method for polystyrene nanoplastic separation in aqueous matrices by asymmetric-flow field flow fraction coupled to MALS and UV-Vis detectors / Valido, Iris H. (Universitat Autònoma de Barcelona. Departament de Química) ; Fuentes-Cebrian, Victor (Universitat Autònoma de Barcelona. Departament de Química) ; Hernández Bonilla, Alba (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Valiente Malmagro, Manuel (Universitat Autònoma de Barcelona. Departament de Química) ; López-Mesas, Montserrat (Universitat Autònoma de Barcelona. Departament de Química)
Plastics with nanosize (nanoplastics, NPLs) must be characterized, since they can be toxic or act as carriers of organic and inorganic pollutants, but there is a lack of reference materials and validated methods in the nanosize range. [...]
2023 - 10.1007/s00604-023-05851-7
Mikrochimica acta, Vol. 190, Issue 8 (August 2023) , art. 285  
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5.
10 p, 1.9 MB Efficient controlled release of cannabinoids loaded in γ‑CD‑MOFs and DPPC liposomes as novel delivery systems in oral health / Rodriguez Martinez, Jorge (Universitat Autònoma de Barcelona. Departament de Química) ; Sánchez-Martín, María-Jesús (Universitat Autònoma de Barcelona. Departament de Química) ; Valiente Malmagro, Manuel (Universitat Autònoma de Barcelona. Departament de Química)
Olivetol (OLV), as a cannabidiol (CBD) analog, was incorporated in γ-cyclodextrin metal-organic frameworks (γ-CD-MOFs) and 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) liposomes as potential analgesic drug delivery systems (DDS) for dental hypersensitivity (DH) treatment. [...]
2023 - 10.1007/s00604-023-05692-4
Mikrochimica acta, Vol. 190 (March 2023) , art. 125  
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6.
22 p, 457.6 KB A comparison of four protocols for the immobilization of an aptamer on graphite composite electrodes / Ocaña Tejada, Cristina (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
We have performed a comparative study on four protocols for the immobilization of the thrombin aptamer on a graphite-epoxy composite electrode with the aim to identify the most practical method for designing the corresponding impedimetric aptasensor. [...]
2014 - 10.1007/s00604-013-1126-0
Mikrochimica acta, Vol. 181, Issue 3-4 (February 2014) , p. 355-363  
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7.
18 p, 1.3 MB A nitrocellulose paper strip for fluorometric determination of bisphenol A using molecularly imprinted nanoparticles / Üzek, Recep (Institut Català de Nanociència i Nanotecnologia) ; Sari, Esma (Institut Català de Nanociència i Nanotecnologia) ; Şenel, Serap (Hacettepe University. Department of Chemistry) ; Denizli, Adil (Hacettepe University. Department of Chemistry) ; Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)
The authors describe a test stripe for fluorometric determination of the endocrine disruptor bisphenol A (BPA). Graphene quantum dots (GQDs) were immobilized on molecularly imprinted nanoparticles which then were placed on nitrocellulose paper. [...]
2019 - 10.1007/s00604-019-3323-y
Mikrochimica acta, Vol. 186, issue 4 (April 2019) , art. 218  
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8.
21 p, 1.5 MB Voltammetric sensor for theophylline using sol-gel immobilized molecularly imprinted polymer particles / Bates, Ferdia (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
Application of Molecularly Imprinted Polymers (MIPs) to sensor substrates holds great promise within the field of electrochemical sensing due to their low price, tailored selectivity and facile synthesis protocols. [...]
2015 - 10.1007/s00604-014-1413-4
Mikrochimica acta, Vol. 182, Issue 5-6 (April 2015) , p. 933-942  
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9.
22 p, 1.4 MB Aptamer-antibody sandwich assay for cytochrome c employing a MWCNT platform and the electrochemical impedance technique / Ocaña Tejada, Cristina (Universitat Autònoma de Barcelona. Departament de Química) ; Lukic, Sonja (University of Regensburg. Institut of Analytical Chemistry, Chemo- and Biosensors) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
We report on a sensitive aptamer-antibody interaction-based assay for cytochrome c (Cytc) using electrochemical impedance. 4-Amino benzoic acid is used for the oriented immobilization of aminated aptamers onto multi-walled carbon nanotubes on the surface of a screen-printed electrode via electrochemical grafting. [...]
2015 - 10.1007/s00604-015-1540-6
Mikrochimica acta, Vol. 182, Issue 11 (August 2015) , p. 2045-2053  
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