ArticleACS applied materials & interfaces2024
Depletion Flocculation of High Internal Phase Pickering Emulsion Inks: A Colloidal Engineering Approach to Develop 3D Printed Porous Scaffolds with Tunable Bioactive Delivery.
Article in ACS applied materials & interfaces, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- High Internal Phase Pickering Emulsions as Structurally Tunable Bioinks for Extrusion-Based Printing From 3D Fabrication to Adaptive Multiresponsive Architectures.Comprehensive reviews in food science and food safety · 2026Pooled it
- Crystallization induced dual networks regulate nonlinear rheology and 3D printability of CNC capillary oleogels.Food chemistry: X · 2026Article
- High Internal Phase Emulsion Template Synthesis of Bio-Based UV-Curable Porous Adhesives with Tunable Architecture and Strong Adhesion.ACS omega · 2026Article
- pH-dependent effects of pepsin and trypsin on the stability and antibiofilm functionality of pea protein-stabilized carvacrol nanoemulsions.Food chemistry: X · 2026Article
- "Mud-sand structure"-Inspired synergistic reinforcement of gellan gum and xanthan gum on the 3D printing properties of protein-based high internal phase emulsions.Current research in food science · 2026Article
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7 authors.
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Abstract
Flocculation is a type of aggregation where the surfaces of approaching droplets are still at distances no closer than a few nanometers while still remaining in close proximity. In a high internal-phase oil-in-water (O/W) emulsion, the state of flocculation affects the bulk flow behavior and viscoelasticity, which can consequently control the three-dimensional (3D)-printing process and printing performance. Herein, we present the assembly of O/W Pickering high-internal-phase emulsions (Pickering-HIPEs) as printing inks and demonstrate how depletion flocculation in such Pickering-HIPE inks can be used as a facile colloidal engineering approach to tailor a porous 3D structure suitable for drug delivery. Pickering-HIPEs were prepared using different levels of cellulose nanocrystals (CNCs), co-stabilized using "raw" submicrometer-sized sustainable particles from a biomass-processing byproduct. In the presence of this sustainable particle, the higher CNC contents facilitated particle-induced depletion flocculation, which led to the formation of a mechanically robust gel-like ink system. Nonetheless, the presence of adsorbed particles on the surface of droplets ensured their stability against coalescence, even in such a highly aggregated system. The gel structures resulting from the depletion phenomenon enabled the creation of high-performance printed objects with tunable porosity, which can be precisely controlled at two distinct levels: first, by introducing voids within the internal structure of filaments, and second, by generating cavities (pore structures) through the elimination of the water phase. In addition to printing efficacy, the HIPEs could be applied for curcumin delivery, and
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