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Articles 43 records found  beginprevious34 - 43  jump to record: Search took 0.01 seconds. 
34.
11 p, 2.1 MB Label-free aptasensor for lysozyme detection using electrochemical impedance spectroscopy / Ortiz, 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 (Basel, Switzerland), Vol. 18 Núm. 2 (February 2018) , art. 354  
Detailed record - Creative Commons
35.
10 p, 957.5 KB Direct and Label-Free Quantification of Micro-RNA-181a at Attomolar Level in Complex Media Using a Nanophotonic Biosensor / Huertas, César S. (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  
Detailed record -
36.
17 p, 782.3 KB Sensitive and label-free detection of miRNA-145 by triplex formation / Aviñó, Ana (Institut de Química Avançada de Catalunya) ; Huertas, César S. (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  
Detailed record -
37.
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 & bioelectronics, Vol. 92 (June 2017) , p. 549-562  
Detailed record - Creative Commons
38.
50 p, 1.9 MB Biosensors for plant pathogen detection / Khater, Mohga (Institut Català de Nanociència i Nanotecnologia) ; De La Escosura-Muñiz, Alfredo (Institut Català de Nanociència i Nanotecnologia) ; Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)
Infectious plant diseases are caused by pathogenic microorganisms such as fungi, bacteria, viruses, viroids, phytoplasma and nematodes. Worldwide, plant pathogen infections are among main factors limiting crop productivity and increasing economic losses. [...]
2017 - 10.1016/j.bios.2016.09.091
Biosensors & bioelectronics, Vol. 93 (July 2017) , p. 72-86  
Detailed record - Creative Commons
39.
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, M. Carmen (Institut Català de Nanociència i Nanotecnologia) ; Alvarez, Mar (Institut Català de Nanociència i Nanotecnologia) ; Otte Ortiz, Marinus Albertus (Institut Català de Nanociència i Nanotecnologia) ; Sepúlveda, 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 (Basel, Switzerland), Vol. 14, Issue 2 (February 2014) , p. 2239-2258  
Detailed record - Creative Commons
40.
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. Departament de Química) ; 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 & bioelectronics, Vol. 54 (2014) , p. 408-414  
Detailed record -
41.
31 p, 1.9 MB Use of nanomaterials for impedimetric DNA sensors : a review / Bonanni, Alessandra (Universitat Autònoma de Barcelona. Departament de Química) ; 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  
Detailed record -
42.
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. Departament de Química) ; González-Calabuig, Andreu (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
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  
Detailed record -
43.
17 p, 2.3 MB A novel electrochemical aptamer-antibody sandwich assay for lysozyme detection / Ocaña Tejada, Cristina (Universitat Autònoma de Barcelona. Departament de Química) ; Hayat, Akhtar (Biocapteurs-Analyses-Environnement. Université de Perpignan via Domitia) ; Mishra, Rupesh (Biocapteurs-Analyses-Environnement. Université de Perpignan via Domitia) ; Vasilescu, Alina (International Centre of Biodynamics. Bucharest) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química) ; Marty, Jean-Louis (Biocapteurs-Analyses-Environnement. Université de Perpignan via Domitia)
In this paper, we have reported a novel electrochemical aptamer-antibody based sandwich biosensor for the detection of lysozyme. In the sensing strategy, an anti-lysozyme aptamer was immobilized onto the carbon electrode surface by covalent binding via diazonium salt chemistry. [...]
2015 - 10.1039/c5an00243e
Analyst, Vol. 140, Issue 12 (June 2015) , p. 4148-4153  
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