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Pressure sensor based on porous polydimethylsiloxane with embedded gold nanoparticles
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SYSNO ASEP 0541794 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Pressure sensor based on porous polydimethylsiloxane with embedded gold nanoparticles Author(s) Silipigni, L. (IT)
Salvato, G. (IT)
Torrisi, A. (PL)
Cutroneo, Mariapompea (UJF-V) ORCID, RID, SAI
Slepička, P. (CZ)
Fajstavr, D. (CZ)
Torrisi, L. (IT)Number of authors 7 Source Title Journal of Materials Science-Materials in Electronics. - : Springer - ISSN 0957-4522
Roč. 32, APR (2021), s. 8703-8715Number of pages 13 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords p-PDMS ; gold nanoparticles ; dielectric properties Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders OECD category Materials engineering R&D Projects GA19-02482S GA ČR - Czech Science Foundation (CSF) EF16_013/0001812 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i. Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000627228800001 EID SCOPUS 85102389542 DOI 10.1007/s10854-021-05541-1 Annotation A compressible capacitive mechanical pressure sensor has been developed. Porous polydimethylsiloxane (p-PDMS) has been chosen as dielectric insulator because of its dielectric constant value. Gold nanoparticles have been embedded in p-PDMS to change the dielectric properties and to tune its elasticity. p-PDMS and its nanocomposite have been synthesized using the sugar leaching process. The p-PDMS physical characterization, with and without the gold nanoparticles, has been conducted to investigate its elastic response to compressive stresses as a function of both the polymer preparation thermal treatment and the gold nanoparticle concentration. A sensor operating in a low-pressure range between about 100 Pa and 10 kPa with a strain ranging between about 5% and 95% has been realized. Dielectric constant and electrical resistivity measurements have been performed using samples with a starting volume of the order of 1 cm(3). The relationship between the dielectric constant, the electrical resistivity and the compressive stress/strain has been also deduced. The described sensor is flexible, biocompatible, water equivalent and can have applications in biomedicine (orthopedic, dentistry), engineering (stress-strain measurements, robotics), and microelectronics (microbalances, stress test on electronic devices). Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2022 Electronic address https://doi.org/10.1007/s10854-021-05541-1
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