Measuring sedimentation profiles for nanoparticle characterization through a square spiral resonator sensor

M. Monteagudo Honrubia, G. Caposciutti, F.J. Herraiz-Martínez, J. Matanza, B. Tellini, R. Giannetti

Sensors Vol. 24, nº. 9, pp. 2735-1 - 2735-14

Resumen:

Metallic nanoscale particles attract a growing interest in several fields, thanks to their unique bonding characteristics; applications are appearing in the literature in the fields of, for example, sensor coatings and biochemical compound detection. However, the controlled fabrication of such nanopowders is often cumbersome, especially because their characterization is normally slow, involving procedures such as electron microscopy. On the other hand, microwave sensors based on near-field effects on materials are being developed with high sensitivity and show promising characteristics. In this paper, the authors show how a microwave sensor based on a Square Spiral Resonator can be used to characterize paraffin dispersions of nanoparticles conveniently and cost-effectively.

Resumen divulgativo:

Las partículas metálicas a escala nanométrica están ganando interés debido a sus características de unión únicas. Encuentran aplicaciones en revestimientos de sensores, detección de compuestos bioquímicos y más. Mientras tanto, los sensores de microondas basados en efectos de campo cercano ofrecen alta sensibilidad y prometen una forma económica de caracterizar nanopartículas.

Palabras Clave: microwave sensors; permittivity; metallic nanoparticles; sedimentation

Índice de impacto JCR y cuartil WoS: 3,900 - Q2 (2022)

Referencia DOI: https://doi.org/10.3390/s24092735

Publicado en papel: Mayo 2024.

Publicado on-line: Abril 2024.

Cita:
M. Monteagudo Honrubia, G. Caposciutti, F.J. Herraiz-Martínez, J. Matanza, B. Tellini, R. Giannetti, Measuring sedimentation profiles for nanoparticle characterization through a square spiral resonator sensor. Sensors. Vol. 24, nº. 9, pp. 2735-1 - 2735-14, Mayo 2024. [Online: Abril 2024]