Enhanced mass sensitivity in novel magnetoelastic resonators geometries for advanced detection systems

https://doi.org/10.1016/j.snb.2019.05.089Get rights and content
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Highlights

  • The mass load sensitivity of a magnetoelastic resonator (MR) can be improved by tailoring sensor geometry and mass load position;

  • Triangular and arched triangular shaped MR show a higher magnetoelastic resonance frequency and a higher mass load sensitivity;

  • The mass sensitivity is improved by partial coatings at the edge/tip of the MR platform when compared to the traditional full covered surface;

Abstract

Acoustic wave based sensors have a major impact in the detection of low concentration of biological and chemical agents. Magnetoelastic resonator platforms are particularly interesting due to their low cost and wireless detection process. However, efforts in improving their performance are still focused only in the reduction of the size. In the present study, a new way to increase the sensitivity of magnetoelastic sensor platforms is proposed. This work demonstrates, both theoretically and experimentally, that the mass load sensitivity can be improved by tailoring sensor geometry and mass load position. Triangular and arched triangular shapes have been tested and compared with the traditional rectangular ones. It has been observed an increase in the mass sensitivity of more than 400% in Metglas® 2826MB magnetoelastic sensor by using new sensor platform geometries. Even higher sensitivities have been obtained by doing partial coatings on the sensor edge/tip instead of the traditional complete uniform coating. New geometries present an increase up to 6400% in partial coatings. The obtained results clearly show the key role of magnetoelastic resonator platforms geometries in the increase of mass load sensitivity and their importance in the draw of future labor-free and wireless sensors for low mass detection systems.

Keywords

Magnetoelastic
Resonators
Sensitivity
Sensors
Geometries
Metglas

Cited by (0)

Paula G. Saiz, Graduate in Physics and Master in New Materials in 2017, is currently pursuing her PhD at the BCMaterials Research Center. During her career she had acquire skills in different areas of materials. In particular, she has extensive experience in various methods of synthesis and in different characterization techniques (X-Ray diffraction, scanning electron microscopy, thermogravimetric analysis, mechanical testing, IR spectroscopy, magnetic and magnetoelastic characterization…). She has presented his works in several conferences and is member of the IEEE Magnetic Society and the American Physical Society (APS). Her current research activities are focus on the development of functionalized magnetoelastic resonators for Volatile Organic Compounds detection using porous materials as sensing layers and in the improvement of the properties of that sensing devices.

David Gandia obtained his Degree in Physics from the Universidad del País Vasco (UPV/EHU) in 2016, and afterwards he enrolled in the Interuniversity Master of New Materials, offered by the Universidad de Cantabria (UC) and the Universidad del País Vasco(UPV/EHU). In his Bachelor`s Final Year and master`s Degree Projects he has been working with the Group of Magnetism and Magnetic Materials, collaborating with the Inmunology, Microbiology and Parasitology department, in an interdisciplanary research project related to Magnetotactic Bacteria for Enhanced Applications. In this project he has developed a method to create 2D and 3D arrays of magnetotactic bacteria for data storage applications and theoretical studies, and in addition, he has also analyzed the viability of these bacteria as nanorobots for Magnetic Hyperthermia mediated Cancer Treatment.

Andoni Lasheras is Assistant Professor in the Applied Physics I Department at the Faculty of Engineering of the University of the Basque Country. He got his degree on Physics at the University of the Basque Country (Spain) in 2009 and completed the Master on New Materials in 2010. In 2012, he obtained a PhD fellowship from de Basque Government to develop a work based on the magnetoelectric effect in magnetostrictive/piezoelectric laminates composites, which successfully finished in January 2016. His research interests are focused on magnetoelastic and magnetoelectric materials for sensing applications and energy harvesting devices. He has published about 27 scientific papers in peer-reviewed journals, as well as to participate in several international conferences with both poster and oral contributions. He collaborates with several national and international research groups and he is currently member of the scientific committee of the International Conference on Material Engineering and Smart Materials. He also served as Guest Editor in the Materials journal for the Special Issues related to magnetic and magnetoelastic sensors.

Ariane Sagasti is graduated in Chemistry in 2011 and Master in New Materials in 2012, both at the University of the Basque Country. She received her PhD in Material Science and Technology in March 2018 at the BCMaterials Research Center. During the development of the thesis work about functionalization of magnetoelastic resonant platforms for chemical and biological sensing purposes she spent 4 months at the University of Patra, in Greece. She has expertise working with different materials (metallic alloys, polymers, zeolites, oxides…), synthesizing them through different routes and characterizing (XRD, SEM, EDX, DSC, voltammetry, electrochemical measurements, magnetic and magnetoelastic characterization…). Nowadays she is focused on improving the corrosion resistance of the magnetoelastic sensors for biological detection.

Iban Quintana obtained is PhD in Materials Physics at the Universidad del País Vasco (UPV – EHU) and the Donostia International Physics Centre (DIPC) in 2007. His work was focused on the study of the effect of temperature on the molecular dynamic and on the properties of transport in thermoplastics used as membranes. In 2007 he joined IK4-Tekniker, working in the study of microfabrication processes by pulsed laser of short and ultrashort duration. In 2007 he realized a post-doctoral secondment in Manufacturing Engineering Center (Cardiff) where he studied a theoretical and experimental study about the effect of laser radiation in metallic glasses. He is author of more than 20 scientific articles and was the co-director of two PhD students. Currently he is the co-director of 3 PhD thesis. From 2011 tp 2016 he led the Unidad de procesos de Ultraprecisión, in IK4-Tekniker, where he coordinates strategic actions in the field of multifunctional surfaces and characterization of materials. He has participated in 10 european projects and coordinated two of them. His group applied for 4 different patents between 2011 and 2016.

Maria Luisa Fernández-Gubieda is an expert in the field of magnetic materials being the head of the group of Magnetism and Magnetic Materials in the University of Basque Country and the leader of a research project on magnetotactic bacteria working on this project a multidisciplinary team of researchers from materials science, physics, microbiology, electronic engineering and medicine. Along her career, she has studied the correlation between structure and magnetic properties on different materials such as amorphous magnetic materials, nanogranular thin films and nanoparticle systems. One of her main activities is the use of Large Scale Facilities specially Synchrotron radiation, being one of the promoters of the beamline “Core level absorption and Emission Spectroscopies” at the Spanish synchrotron ALBA. She has published more than 100 scientific papers in peer-reviewed journals (h-index = 21) and has supervised 5 PhD Thesis.

Jon Gutiérrez received the diploma and the doctor degree, both in physics, from the Universidad del País Vasco UPV/EHU in 1985 and 1992, respectively. He is one of the seed members of the Group of Magnetism and Magnetic Materials founded and led by Prof. J.M. Barandiarán at this university. His areas of interest cover from the study of the structure and the fundamental magnetic properties of magnetic materials to the analysis and development of possible technical applications to be implemented in sensor-like devices. One of the main focus of his research is the use of magnetoelastic amorphous ribbons for sensing purposes, and any other related device or phenomenon, like nowadays magnetoelectric laminates or functionalized magnetoelastic labels for biosensing. Dr. J. Gutiérrez has published about 130 scientific papers in peer-reviewed journals and has supervised 5 PhD Thesis. He is deeply involved with the Technical Committee of the European Magnetic Sensors & Actuators (EMSA) and Materials and Applications for Sensors and Transducers (IC-MAST) Conferences.

Maria Isabel Arriortua’s (PhD 1981, UPV/EHU) interest in materials chemistry dates back to her work in the University of Loveine-la-Neuve, where she did part of her PhD thesis. Upon returning to the University of the Basque Country, she set up the Crystallography group at this university and her work has resulted in more than 350 scientific articles (h-index: 44) and she has supervised 17 PhD Thesis. Since 1992 she has been Full Professor of Crystallography and Mineralogy at UPV/EHU and director of the UPV/EHU Advanced Research Facilities (SGIker) since its creation. She has been awarded with the Euskadi research award in Science and Technology in 2010 and coordinated the Materials Science and Technology area for the National Evaluation and Foresight Agency (ANEP) of the Spanish Government from 2010 to 2014. Nowadays she is member of the expert committee for the design of Basic Strategic Lines of Science, Technology and Innovation for the Basque Government and academic of Jakiunde, Basque Academy of Sciences, Arts and Letters since 2012. She is PI of projects related with mass and/or energy generation and storage materials, focussed on the relationship between crystal structure and properties.

Ana CatarinaLopes is graduated in Physics and Chemistry in 2006 and Master in Physics in 2009. In September 2013 she obtained her Physics PhD degree at the University of Minho (Portugal). Part of her thesis work was in collaboration with the University of Valencia, Spain and University of Münster, Germany, and dealt about electroactive polymeric composites with porous structured materials. She also performed one year Post-doc at the University of Minho, where she worked in the project of ionic electroactive polymers for high performance actuators applications. In 2016 she was awarded with a Marie Skłodowska-Curie Individual Fellowship under the project BIDMAG: “Biological detection with functionalized Magnetic Sensor” (in BCMaterials, Spain), which main objective is to develop smart hybrid surfaces of polymer functionalised for a specific bacteria binding, onto magnetic substrates (MER), able to present magnetic response to a given biological agent. She is author and co-author of 31 articles in indexed journals, receiving more than 1400 citations (h-index = 16).