13910 IUPAC Gold Book - microparticle 10.1351/goldbook.13910 13910 current 1 Particle with dimensions between \(\pu{1E-7}\) and \(\pu{1E-4 m}\). The lower limit between micro- and nano-sizing is still a matter of debate. (See nanoparticle.) To be consistent with the prefix "micro" and the range imposed by the definition, dimensions of microparticles should be expressed in \(\pu{\upmu m}\). PAC, 2012, 84, 377. 'Terminology for biorelated polymers and applications (IUPAC Recommendations 2012)' on page 393 (https://doi.org/10.1351/PAC-REC-10-12-04) https://goldbook.iupac.org/terms/view/13910/html https://goldbook.iupac.org/terms/view/13910/json https://goldbook.iupac.org/terms/view/13910/plain Citation: 'microparticle' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.13910 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-06-28T14:01:31+00:00