Title: ad-micelle Long Title: IUPAC Gold Book - ad-micelle DOI: 10.1351/goldbook.14319 Status: current Definition Surfactant bilayer formed on a charged adsorbing surface. Notes 1) Ad-micelles are usually formed on inorganic particles. 2) In the case of particles with charged surfaces the surfactant molecules are oriented with their charged head-groups toward the particle surfaces. In the case of further addition of surfactant, a surface bilayer may form, which is termed an ad-micelle (adsorbed micelle). Source - PAC, 2011, 83, 2229. 'Terminology of polymers and polymerization processes in dispersed systems (IUPAC Recommendations 2011)' on page 2240 (https://doi.org/10.1351/PAC-REC-10-06-03) Other Outputs - html: https://goldbook.iupac.org/terms/view/14319/html - json: https://goldbook.iupac.org/terms/view/14319/json - xml: https://goldbook.iupac.org/terms/view/14319/xml Citation: Citation: 'ad-micelle' 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.14319 License: 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. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: 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. Accessed: 2026-06-29T14:56:38+00:00