{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:10:41Z","timestamp":1760148641336,"version":"build-2065373602"},"reference-count":61,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2023,5,30]],"date-time":"2023-05-30T00:00:00Z","timestamp":1685404800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000015","name":"U.S. Department of Energy, Office of Science, Office of Accelerator R&amp;D and Production","doi-asserted-by":"publisher","award":["DE-SC0022145","1651538"],"award-info":[{"award-number":["DE-SC0022145","1651538"]}],"id":[{"id":"10.13039\/100000015","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000001","name":"National Science Foundation","doi-asserted-by":"publisher","award":["DE-SC0022145","1651538"],"award-info":[{"award-number":["DE-SC0022145","1651538"]}],"id":[{"id":"10.13039\/100000001","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The piezoresistance of carbon nanotube (CNT)-coated microfibers is examined using diametric compression. Diverse CNT forest morphologies were studied by changing the CNT length, diameter, and areal density via synthesis time and fiber surface treatment prior to CNT synthesis. Large-diameter (30\u201360 nm) and relatively low-density CNTs were synthesized on as-received glass fibers. Small-diameter (5\u201330 nm) and-high density CNTs were synthesized on glass fibers coated with 10 nm of alumina. The CNT length was controlled by adjusting synthesis time. Electromechanical compression was performed by measuring the electrical resistance in the axial direction during diametric compression. Gauge factors exceeding three were measured for small-diameter (&lt;25 \u03bcm) coated fibers, corresponding to as much as 35% resistance change per micrometer of compression. The gauge factor for high-density, small-diameter CNT forests was generally greater than those for low-density, large-diameter forests. A finite element simulation shows that the piezoresistive response originates from both the contact resistance and intrinsic resistance of the forest itself. The change in contact and intrinsic resistance are balanced for relatively short CNT forests, while the response is dominated by CNT electrode contact resistance for taller CNT forests. These results are expected to guide the design of piezoresistive flow and tactile sensors.<\/jats:p>","DOI":"10.3390\/s23115190","type":"journal-article","created":{"date-parts":[[2023,5,31]],"date-time":"2023-05-31T02:57:10Z","timestamp":1685501830000},"page":"5190","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Investigating the Electromechanical Sensitivity of Carbon-Nanotube-Coated Microfibers"],"prefix":"10.3390","volume":"23","author":[{"given":"Elizabeth","family":"Bellott","sequence":"first","affiliation":[{"name":"Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA"}]},{"given":"Yushan","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA"}]},{"given":"Connor","family":"Gunter","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering & Computer Science, University of Missouri, Columbia, MO 65211, USA"}]},{"given":"Scott","family":"Kovaleski","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering & Computer Science, University of Missouri, Columbia, MO 65211, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0740-6228","authenticated-orcid":false,"given":"Matthew R.","family":"Maschmann","sequence":"additional","affiliation":[{"name":"Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA"},{"name":"MU Materials Science and Engineering Institute, University of Missouri, Columbia, MO 65211, USA"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Boublil, B.L., Diebold, C.A., and Moss, C.F. 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