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11 p, 1.8 MB |
Live synthesis of selective carbon dots as fluorescent probes for cobalt determination in water with an automatic microanalyzer
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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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Characterization of the denaturation of bovine serum albumin (BSA) protein by means of a differential-mode microwave microfluidic sensor based on slot resonators
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Muñoz Enano, Jonathan (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Peytral-Rieu, Olivia (Centre national de la recherche scientifique. Laboratoire d'analyse et d'architecture des systèmes) ;
Vélez Rasero, Paris (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Dubuc, David (Centre national de la recherche scientifique. Laboratoire d'analyse et d'architecture des systèmes) ;
Grenier, Katia (Centre national de la recherche scientifique. Laboratoire d'analyse et d'architecture des systèmes) ;
Martín, Ferran (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
This paper presents a differential-mode microwave microfluidic sensor useful for the characterization/detection of the denaturation of Bovine Serum Albumin (BSA), a protein with numerous biochemical applications, caused by a chaotropic agent, specifically, urea. [...]
2022 - 10.1109/JSEN.2022.3181542
IEEE sensors journal, Vol. 22, issue 14 (Juliol 2022) , p. 14075-14083
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3.
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48 p, 1.4 MB |
Coating bioactive microcapsules with tannic acid enhances the phenotype of the encapsulated pluripotent stem cells
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Choi, Daheui (Mayo Clinic, Department of Physiology and Biomedical Engineering) ;
Gwon, Kihak (Mayo Clinic. Department of Physiology and Biomedical Engineering) ;
Hong, Hye Jin (Mayo Clinic. Department of Physiology and Biomedical Engineering) ;
Baskaran, Harihara (Case Western Reserve University. Department of Chemical and Biomolecular Engineering) ;
Calvo Lozano, Olalla (Institut Català de Nanociència i Nanotecnologia) ;
Gonzalez-Suarez, Alan M. (Mayo Clinic. Department of Physiology and Biomedical Engineering) ;
Park, Kyungtae (Yonsei University. Department of Chemical and Biomolecular Engineering) ;
De Hoyos-Vega, Jose M. (Mayo Clinic. Department of Physiology and Biomedical Engineering) ;
Lechuga, Laura M (Institut Català de Nanociència i Nanotecnologia) ;
Hong, Jinkee (Yonsei University. Department of Chemical and Biomolecular Engineerin) ;
Stybayeva, Gulnaz (Mayo Clinic. Department of Physiology and Biomedical Engineering) ;
Revzin, Alexander (Mayo Clinic. Department of Physiology and Biomedical Engineering)
Human pluripotent stem cells (hPSCs) may be differentiated into any adult cell type and therefore hold incredible promise for cell therapeutics and disease modeling. There is increasing interest in three-dimensional (3D) hPSC culture because of improved differentiation outcomes and potential for scale up. [...]
2022 - 10.1021/acsami.2c06783
ACS applied materials & interfaces, Vol. 14, issue 23 (June 2022) , p. 27274-27286
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4.
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18 p, 5.3 MB |
Integrated devices for non-invasive diagnostics
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Ates, Hatice Ceren (Freiburg Centre for Interactive Materials and Bioinspired Technology) ;
Brunauer, Anna (University of Freiburg. Department of Microsystems Engineering) ;
von Stetten, Felix (Hahn-Schickard) ;
Urban, Gerald A. (University of Freiburg. Department of Microsystems Engineering) ;
Güder, Firat (Imperial College London. Department of Bioengineering) ;
Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia) ;
Früh, Susanna Maria (Hahn-Schickard) ;
Dincer, Can (University of Freiburg. Department of Microsystems Engineering)
"Sample-in-answer-out" type integrated diagnostic devices have been widely recognized as the ultimate solution to simplify testing across healthcare systems. Such systems are equipped with advanced fluidic, mechanical, chemical, biological, and electronic components to handle patient samples without any manual steps therefore have the potential to accelerate intervention and improve patient outcomes. [...]
2021 - 10.1002/adfm.202010388
Advanced functional materials, Vol. 31, issue 15 (April 2021) , art. 2010388
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6.
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8 p, 2.6 MB |
Rapid warning microanalyzer for heavy metals monitoring in natural waters
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Pascual-Esco, Alex (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 warning microanalyzer for the rapid monitoring of different heavy metals in water using Carbon Dots (CDs) as selective optical reagents is presented. The synthesized CDs have different surface functionalization and exhibit selective fluorescence quenching by heavy metal ions, that combined with the use of microfluidics, provide sensitivity, ease of automation and reproducibility to the method. [...]
2022 - 10.1016/j.snb.2022.132180
Sensors and actuators. B, Chemical, Vol. 368 (October 2022) , art. 132180
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7.
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13 p, 1.1 MB |
Fluorescence Imaging Characterization of the Separation Process in a Monolithic Microfluidic Free-Flow Electrophoresis Device Fabricated Using Low-Temperature Co-Fired Ceramics
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Couceiro, Pedro (Universitat Autònoma de Barcelona. Departament de Química) ;
Alonso Chamarro, Julián (Universitat Autònoma de Barcelona. Departament de Química)
A monolithic microfluidic free-flow electrophoresis device, fabricated using low-temperature co-fired ceramic technology, is presented. The device integrates gold electrodes and a 20 µm thick transparent ceramic optical window, suitable for fluorescence imaging, into a multilevel microfluidic chamber design. [...]
2022 - 10.3390/mi13071023
Micromachines, Vol. 13, Issue 7 (June 2022) , art. 1023
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8.
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14 p, 2.2 MB |
Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
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Vélez Rasero, Paris (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Muñoz Enano, Jonathan (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Ebrahimi, Amir (Royal Melbourne Institute of Technology. School of Engineering) ;
Herrojo, Cristian (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Paredes, Ferran (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Scott, James (Royal Melbourne Institute of Technology. School of Engineering) ;
Ghorbani, Kamran (Royal Melbourne Institute of Technology. School of Engineering) ;
Martín, Ferran (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
A microfluidic sensor based on a microstrip line loaded with a composite resonator is reported in this paper. The composite resonator combines a shunt connected step impedance resonator (SIR) and a complementary split ring resonator CSRR) etched in the ground plane. [...]
2021 - 10.1109/JSEN.2021.3062290
IEEE sensors journal, Vol. 21, Issue 10 (May 2021) , p. 12189-12201
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