Versailles project on advanced materials and standards (VAMAS) interlaboratory study on measuring the number concentration of colloidal gold nanoparticles

Minelli, C ORCID:, Wywijas, M, Bartczak, D ORCID:, Cuello-Nuñez, S ORCID:, Infante, HG ORCID:, Deumer, J, Gollwitzer, C, Krumrey, M ORCID:, Murphy, KE, Johnson, ME ORCID:, Montoro Bustos, AR ORCID:, Strenge, IH ORCID:, Faure, B ORCID:, Høghøj, P, Tong, V ORCID:, Burr, L, Norling, K, Höök, F ORCID:, Roesslein, M, Kocic, J ORCID:, Hendriks, L, Kestens, V ORCID:, Ramaye, Y, Contreras Lopez, MC, Auclair, G, Mehn, D, Gilliland, D, Potthoff, A, Oelschlägel, K, Tentschert, J, Jungnickel, H, Krause, BC ORCID:, Hachenberger, YU, Reichardt, P, Luch, A ORCID:, Whittaker, TE, Stevens, MM, Gupta, S ORCID:, Singh, A, Lin, F-H ORCID:, Liu, Y-H, Costa, AL ORCID:, Baldisserri, C, Jawad, R, Andaloussi, SEL, Holme, MN, Lee, TG, Kwak, M, Kim, J, Ziebel, J, Guignard, C, Cambier, S, Contal, S, Gutleb, AC, Kuba Tatarkiewicz, J, Jankiewicz, BJ ORCID:, Bartosewicz, B ORCID:, Wu, X ORCID:, Fagan, JA ORCID:, Elje, E, Rundén-Pran, E ORCID:, Dusinska, M, Kaur, IP, Price, D, Nesbitt, I, O Reilly, S, Peters, RJB ORCID:, Bucher, G, Coleman, D, Harrison, AJ, Ghanem, A, Gering, A, McCarron, E, Fitzgerald, N, Cornelis, G ORCID:, Tuoriniemi, J, Sakai, M, Tsuchida, H, Maguire, C, Prina-Mello, A ORCID:, Lawlor, AJ, Adams, J, Schultz, CL ORCID:, Constantin, D, Thanh, NTK ORCID:, Tung, LD, Panariello, L ORCID:, Damilos, S, Gavriilidis, A ORCID:, Lynch, I ORCID:, Fryer, B, Carrazco Quevedo, A, Guggenheim, E, Briffa, S, Valsami-Jones, E ORCID:, Huang, Y ORCID:, Keller, AA ORCID:, Kinnunen, V-T, Perämäki, S ORCID:, Krpetic, Z ORCID:, Greenwood, MJ and Shard, AG ORCID: 2022, 'Versailles project on advanced materials and standards (VAMAS) interlaboratory study on measuring the number concentration of colloidal gold nanoparticles' , Nanoscale .

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We describe the outcome of a large international interlaboratory study of the measurement of particle number concentration of colloidal nanoparticles, project 10 of the technical working area 34, "Nanoparticle Populations" of the Versailles Project on Advanced Materials and Standards (VAMAS). A total of 50 laboratories delivered results for the number concentration of 30 nm gold colloidal nanoparticles measured using particle tracking analysis (PTA), single particle inductively coupled plasma mass spectrometry (spICP-MS), ultraviolet-visible (UV-Vis) light spectroscopy, centrifugal liquid sedimentation (CLS) and small angle X-ray scattering (SAXS). The study provides quantitative data to evaluate the repeatability of these methods and their reproducibility in the measurement of number concentration of model nanoparticle systems following a common measurement protocol. We find that the population-averaging methods of SAXS, CLS and UV-Vis have high measurement repeatability and reproducibility, with between-labs variability of 2.6%, 11% and 1.4% respectively. However, results may be significantly biased for reasons including inaccurate material properties whose values are used to compute the number concentration. Particle-counting method results are less reproducibile than population-averaging methods, with measured between-labs variability of 68% and 46% for PTA and spICP-MS respectively. This study provides the stakeholder community with important comparative data to underpin measurement reproducibility and method validation for number concentration of nanoparticles.

Item Type: Article
Additional Information: ** From PubMed via Jisc Publications Router **Journal IDs: eissn 2040-3372 **Article IDs: pubmed: 35262538 **History: published 09-03-2022
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: Nanoscale
Publisher: The Royal Society of Chemistry
ISSN: 2040-3364
Related URLs:
Funders: EURAMET/European Union, UK Department of Business, Energy and Industrial Strategy, European Union Horizon 2020
SWORD Depositor: Publications Router
Depositing User: Publications Router
Date Deposited: 23 Mar 2022 12:02
Last Modified: 17 Aug 2022 10:16

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