biostudies-literatureShi HEngineering and Physical Sciences Research Council3370-3379https://www.ebi.ac.uk/biostudies/studies/S-EPMC9007535biostudies-literatureUnknown38(11)Electrostatic attractions are essential in any complex formation between the nanofibrils of the opposite charge for a specific application, such as microcapsule production. Here, we used cationized cellulose nanofibril (CCNF)-stabilized Pickering emulsions (PEs) as templates, and the electrostatic interactions were induced by adding oxidized cellulose nanofibrils (OCNFs) at the oil-water interface to form microcapsules (MCs). The oppositely charged cellulose nanofibrils enhanced the solidity of interfaces, allowing the encapsulation of Nile red (NR) in sunflower oil droplets. Microcapsules exhibited a low and controlled release of NR at room temperature. Furthermore, membrane emulsification was employed to scale up the preparation of microcapsules with sunflower oil (SFO) encapsulated by CLangmuir : the ACS journal of surfaces and colloidsStable Cellulose Nanofibril Microcapsules from Pickering Emulsion Templates.PMC9007535EP/P027490/1Hossain KMZCalifano DCallaghan CEkanem EEEdler KJMattia DShi HScott JLfalseStable Cellulose Nanofibril Microcapsules from Pickering Emulsion Templates.Electrostatic attractions are essential in any complex formation between the nanofibrils of the opposite charge for a specific application, such as microcapsule production. Here, we used cationized cellulose nanofibril (CCNF)-stabilized Pickering emulsions (PEs) as templates, and the electrostatic interactions were induced by adding oxidized cellulose nanofibrils (OCNFs) at the oil-water interface to form microcapsules (MCs). The oppositely charged cellulose nanofibrils enhanced the solidity of interfaces, allowing the encapsulation of Nile red (NR) in sunflower oil droplets. Microcapsules exhibited a low and controlled release of NR at room temperature. Furthermore, membrane emulsification was employed to scale up the preparation of microcapsules with sunflower oil (SFO) encapsulated by C2022-01-01T00:00:00Z2022 Mar2025-04-04T10:44:32.267Z2025-04-04T10:44:32.267ZS-EPMC90075353526124010.1021/acs.langmuir.1c03025