Articles

Articles 25 records found  beginprevious15 - 24next  jump to record: Search took 0.01 seconds. 
15.
14 p, 1.8 MB Electrochemical Biosensor Based on Optimized Biocomposite for Organophosphorus and Carbamates Pesticides Detection / Montes Martínez, Raquel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Céspedes Mulero, Francisco (Universitat Autònoma de Barcelona. Departament de Química) ; Gabriel Buguña, David (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Baeza Labat, Maria del Mar (Universitat Autònoma de Barcelona. Departament de Química)
This paper presents the characterization and optimization of biosensors based on graphite-epoxy which incorporates the enzyme acetylcholinesterase (AChE). By means of advanced electrochemical techniques, such as electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV), the characterization and optimization of graphite-epoxy-AChE biosensors have been performed. [...]
2018 - 10.1155/2018/7093606
Journal of Nanomaterials, Vol. 2018 (2018) , art. 7093606  
16.
11 p, 2.1 MB Label-free aptasensor for lysozyme detection using electrochemical impedance spectroscopy / Ortiz-Aguayo, Dionisia (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This research develops a label-free aptamer biosensor (aptasensor) based on graphite-epoxy composite electrodes (GECs) for the detection of lysozyme protein using Electrochemical Impedance Spectroscopy (EIS) technique. [...]
2018 - 10.3390/s18020354
Sensors, Vol. 18 Núm. 2 (February 2018) , art. 354  
17.
10 p, 957.5 KB Direct and Label-Free Quantification of Micro-RNA-181a at Attomolar Level in Complex Media Using a Nanophotonic Biosensor / Sánchez Huertas, César (Institut Català de Nanociència i Nanotecnologia) ; Fariña, David (Institut Català de Nanociència i Nanotecnologia) ; Lechuga, Laura M. (Institut Català de Nanociència i Nanotecnologia)
Micro-RNA signatures have emerged as advantageous biomarkers for disease prediction opening the route for the development of more direct and accurate therapies. There is an urgent need for reliable tools which can offer fast, highly sensitive, and selective detection of multiple miRNAs in complex matrices as opposed to the conventional techniques. [...]
2016 - 10.1021/acssensors.6b00162
ACS Sensors, Vol. 1, Núm. 6 (June 2016) , p. 748-756  
18.
17 p, 782.3 KB Sensitive and label-free detection of miRNA-145 by triplex formation / Aviñó, Anna (Institut de Química Avançada de Catalunya) ; Sánchez Huertas, César (Institut Català de Nanociència i Nanotecnologia) ; Lechuga, Laura M. (Institut Català de Nanociència i Nanotecnologia) ; Eritja, Ramon (Institut de Química Avançada de Catalunya)
The development of new strategies for detecting microRNAs (miRNAs) has become a crucial step in the diagnostic field. miRNA profiles depend greatly on the sample and the analytical platform employed, leading sometimes to contradictory results. [...]
2016 - 10.1007/s00216-015-9180-6
Analytical and Bioanalytical Chemistry, Vol. 408, Issue 3 (January 2016) , p. 885-893  
19.
34 p, 1.8 MB Mobile phone-based biosensing : An emerging "diagnostic and communication" technology / Quesada González, Daniel (Institut Català de Nanociència i Nanotecnologia) ; Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)
In this review we discuss recent developments on the use of mobile phones and similar devices for biosensing applications in which diagnostics and communications are coupled. Owing to the capabilities of mobile phones (their cameras, connectivity, portability, etc. [...]
2017 - 10.1016/j.bios.2016.10.062
Biosensors and Bioelectronics, Vol. 92 (June 2017) , p. 549-562  
20.
50 p, 1.9 MB Biosensors for plant pathogen detection / Khater, Mohga (Institut Catala de Nanociència i Nanotecnologia) ; De la Escosura Muñiz, Alfredo (Institut Catala de Nanociència i Nanotecnologia) ; Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)
2017 - 10.1016/j.bios.2016.09.091
Biosensors and bioelectronics, Vol. 93 (July 2017) , p. 72-86  
21.
20 p, 864.5 KB Direct detection of protein biomarkers in human fluids using site-specific antibody immobilization strategies / Soler Aznar, Maria (Institut Català de Nanociència i Nanotecnologia) ; Estévez Alberola, Maria Carmen (Institut Català de Nanociència i Nanotecnologia) ; Álvarez, Mar (Institut Català de Nanociència i Nanotecnologia) ; Otte Ortiz, Marinus Albertus (Institut Català de Nanociència i Nanotecnologia) ; Sepúlveda Martínez, Borja (Institut Català de Nanociència i Nanotecnologia) ; Lechuga, Laura M. (Institut Català de Nanociència i Nanotecnologia)
Design of an optimal surface biofunctionalization still remains an important challenge for the application of biosensors in clinical practice and therapeutic follow-up. Optical biosensors offer real-time monitoring and highly sensitive label-free analysis, along with great potential to be transferred to portable devices. [...]
2014 - 10.3390/s140202239
Sensors, Vol. 14, Issue 2 (February 2014) , p. 2239-2258  
22.
21 p, 1.5 MB Signal amplification for thrombin impedimetric aptasensor : sandwich protocol and use of gold-streptavidin nanoparticles / Ocaña Tejada, Cristina (Universitat Autònoma de Barcelona. Grup Sensors i Biosensors) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
In this work, we report a highly specific amplification strategy demonstrated for the ultrasensitive biosensing of thrombin with the use of gold-streptavidin nanoparticles (strep-AuNPs) and silver reduction enhancement. [...]
2014 - 10.1016/j.bios.2013.10.068
Biosensors and bioelectronics, Vol. 54 (2014) , p. 408–414  
23.
31 p, 1.9 MB Use of nanomaterials for impedimetric DNA sensors : a review / Bonanni, Alessandra (Universitat Autònoma de Barcelona. Grup Sensors i Biosensors) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This review presents the state of the art of DNA sensors (or genosensors) that utilize electrochemical impedance spectroscopy as the transduction technique. As issue of current interest, it is centered on the use of nanomaterials to develop or to improve performance of these specific biosensors. [...]
2010 - 10.1016/j.aca.2010.08.022
Analytica chimica acta, Vol. 678, Issue 1 (Sep 2010) , p. 7-17  
24.
10 p, 2.1 MB Use of a bioelectronic tongue for the monitoring of the photodegradation of phenolic compounds / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Grup de Sensors i Biosensors) ; González-Calabuig, Andreu (Universitat Autònoma de Barcelona. Grup de Sensors i Biosensors) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Grup de Sensors i Biosensors)
The application of a voltammetric bioelectronic tongue for the simultaneous monitoring of catechol, m-cresol and guaiacol in wastewater is reported. Voltammetric responses obtained from an array of bulk modified (bio)sensors, containing enzymes such as tyrosinase and laccase, were combined with chemometric tools such as artificial neural networks (ANNs) for building the quantitative prediction model. [...]
2015 - 10.1002/elan.201400394
Electroanalysis, Vol. 27 Issue 1 (Jan. 2015) , p. 225-233  

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