{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T20:59:01Z","timestamp":1782334741126,"version":"3.54.5"},"reference-count":31,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2015,11,3]],"date-time":"2015-11-03T00:00:00Z","timestamp":1446508800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>An interferometric method is implemented in order to accurately assess the thermal fluctuations of a micro-cantilever sensor in liquid environments. The power spectrum density (PSD) of thermal fluctuations together with Sader\u2019s model of the cantilever allow for the indirect measurement of the liquid viscosity with good accuracy. The good quality of the deflection signal and the characteristic low noise of the instrument allow for the detection and corrections of drawbacks due to both the cantilever shape irregularities and the uncertainties on the position of the laser spot at the fluctuating end of the cantilever. Variation of viscosity below 0.03 mPa\u00b7s was detected with the alternative to achieve measurements with a volume as low as 50 \u00b5L.<\/jats:p>","DOI":"10.3390\/s151127905","type":"journal-article","created":{"date-parts":[[2015,11,3]],"date-time":"2015-11-03T11:17:07Z","timestamp":1446549427000},"page":"27905-27916","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["High Resolution Viscosity Measurement by Thermal Noise Detection"],"prefix":"10.3390","volume":"15","author":[{"given":"Felipe","family":"Aguilar Sandoval","sequence":"first","affiliation":[{"name":"Departamento de F\u00edsica, Universidad de Santiago de Chile, Avenida Ecuador 3493, Estaci\u00f3n Central, Santiago 9170124, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuel","family":"Sep\u00falveda","sequence":"additional","affiliation":[{"name":"Departamento de F\u00edsica, Universidad de Santiago de Chile, Avenida Ecuador 3493, Estaci\u00f3n Central, Santiago 9170124, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ludovic","family":"Bellon","sequence":"additional","affiliation":[{"name":"Laboratoire de Physique, Universit\u00e9 de Lyon, Ecole Normale Sup\u00e9rieure de Lyon, CNRS, 46 All\u00e9e d\u2019Italie, Lyon F-69007, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francisco","family":"Melo","sequence":"additional","affiliation":[{"name":"Departamento de F\u00edsica, Universidad de Santiago de Chile, Avenida Ecuador 3493, Estaci\u00f3n Central, Santiago 9170124, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2015,11,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Yablon, D. 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