{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T12:58:19Z","timestamp":1774097899009,"version":"3.50.1"},"reference-count":18,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2020,11,19]],"date-time":"2020-11-19T00:00:00Z","timestamp":1605744000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/summer-heart-0930.chufeiyun1688.workers.dev:443\/https\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Nanoparticle Tracking Analysis (NTA) allows for the simultaneous determination of both size and concentration of nanoparticles in a sample. This study investigates the accuracy of particle size and concentration measurements performed on an LM10 device. For experiments, standard nanoparticles of different sizes composed of two materials with different refractive indices were used. Particle size measurements were found to have a decent degree of accuracy. This fact was verified by the manufacturer-reported particle size\u2014determined by transmission electron microscopy (TEM)\u2014as well as by performed scanning electron microscopy (SEM) measurements. On the other hand, concentration measurements resulted in overestimation of the particle concentration in majority of cases. Thus, our findings confirmed the accuracy of nanoparticle sizing performed by the LM10 instrument and highlighted the overestimation of particle concentration made by this device. In addition, an approach of swift correction of the results of concentration measurements received for samples is suggested in the presented study.<\/jats:p>","DOI":"10.3390\/s20226611","type":"journal-article","created":{"date-parts":[[2020,11,19]],"date-time":"2020-11-19T06:23:52Z","timestamp":1605767032000},"page":"6611","update-policy":"https:\/\/summer-heart-0930.chufeiyun1688.workers.dev:443\/https\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Features of Sizing and Enumeration of Silica and Polystyrene Nanoparticles by Nanoparticle Tracking Analysis (NTA)"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/summer-heart-0930.chufeiyun1688.workers.dev:443\/https\/orcid.org\/0000-0002-1040-7686","authenticated-orcid":false,"given":"Zohair","family":"Usfoor","sequence":"first","affiliation":[{"name":"Leibniz Institute for Analytical Sciences (ISAS), 44139 Dortmund, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katharina","family":"Kaufmann","sequence":"additional","affiliation":[{"name":"Leibniz Institute for Analytical Sciences (ISAS), 44139 Dortmund, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Al Shahriar Hossain","family":"Rakib","sequence":"additional","affiliation":[{"name":"Leibniz Institute for Analytical Sciences (ISAS), 44139 Dortmund, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roland","family":"Hergenr\u00f6der","sequence":"additional","affiliation":[{"name":"Leibniz Institute for Analytical Sciences (ISAS), 44139 Dortmund, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Victoria","family":"Shpacovitch","sequence":"additional","affiliation":[{"name":"Leibniz Institute for Analytical Sciences (ISAS), 44139 Dortmund, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"177","DOI":"10.1038\/nature14581","article-title":"Glypican-1 identifies cancer exosomes and detects early pancreatic cancer","volume":"523","author":"Melo","year":"2015","journal-title":"Nature"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"746","DOI":"10.1080\/14686996.2019.1629835","article-title":"Latest advances in extracellular vesicles: From bench to bedside","volume":"20","author":"Yamamoto","year":"2019","journal-title":"Sci. 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