Web of Science: 1 citas, Scopus: 1 citas, Google Scholar: citas
Array of Microfluidic Beam Resonators for Density and Viscosity Analysis of Liquids
Márquez, Salomón (Institut Català de Nanociència i Nanotecnologia)
Álvarez, Mar (Institut de Microelectrònica de Barcelona)
Fariña, David (Institut Català de Nanociència i Nanotecnologia)
Homs Corbera, Antoni (Institut Català de Nanociència i Nanotecnologia)
Domínguez Horna, Carlos (Institut de Microelectrònica de Barcelona)
Lechuga, Laura M. (Institut Català de Nanociència i Nanotecnologia)

Fecha: 2017
Resumen: This paper reports on the design, fabrication, and evaluation of a mass density and viscosity sensor based on an array of polysilicon microbeam resonators integrated with 20 pL fluidic microchannels. When filled with water, resonators exhibit resonant frequencies close to 500 KHz and Q-factor values of 400 operating at atmospheric pressure and ambient temperature. Real-time measurements are highly reproducible and only require 250 μL of the sample fluid. The built-in interferometric readout enables automatic detection of the beams increasing the throughput analysis and reducing detection times. The frequency shift response shows a linear behavior in accordance with the density of evaluated solvents, organic solutions, and alcoholic drinks, reporting a mass responsivity of 7. 4 Hz/pg. Also, the sensor is capable of measuring the viscosity of liquid phase samples with a resolution of 0. 15 cP by tracking the Q-factor response of the sensor within a linear regime between 1 to 2. 6 cP. This approach demonstrates the ability to identify in real-time changes of fluids in the liquid phase that could provide a valuable assessment for bioanalytical applications.
Nota: Número d'acord de subvenció AGAUR/2014/SGR-624
Nota: Número d'acord de subvenció MINECO/SEV-2013-0295
Derechos: Tots els drets reservats.
Lengua: Anglès
Documento: article ; recerca ; acceptedVersion
Materia: Array ; Density ; Liquids ; Microfluidic channels ; Q-factor ; Resonators ; Resonant frequency ; Viscosity
Publicado en: Journal of microelectromechanical systems, Vol. 26, Issue 4 (August 2017) , p. 749-757, ISSN 1057-7157

DOI: 10.1109/JMEMS.2017.2709944


Postprint
11 p, 1.1 MB

El registro aparece en las colecciones:
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Institut Català de Nanociència i Nanotecnologia (ICN2)
Artículos > Artículos de investigación
Artículos > Artículos publicados

 Registro creado el 2020-06-25, última modificación el 2020-08-01



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