Capsules with responsive polymeric shells for applications beyond drug delivery

Abstract

Polymeric capsules with core-shell structures have been widely explored for molecule separations, energy storage, and catalysis, among other applications. To tailor the application-oriented performance of these structures, researchers have imparted...

Synthesis and Characterization of Fluorinated Ionic Liquids and Their Application in Hydrofluorocarbon Gas Uptake

“…Our group has demonstrated that encapsulation of ILs overcomes various limitations involved in process design. Specifically, we prepared capsules with a core of IL and GO/polymer composite shell by interfacial polymerization in Pickering emulsions. ,− As a proof of concept that encapsulation is beneficial to fluorinated gas absorption, FIL-4 was encapsulated and utilized for HFC gas uptake. Encapsulation of the FILs was achieved through interfacial polymerization within a nonaqueous Pickering emulsion template (Figures A and S5A), producing capsules with a core of FIL and shell of polyurea and GO nanosheets.…”

Visible Light Induced Interfacial Photo-Cross-Linking for Fabrication of Polymer Capsules Using Photoreactive Polymers with Substituted Cinnamates

“…Hollow polymer particles are used in various industrial fields as light scattering agents and thermal insulation owing to their unique physical properties. , Furthermore, capsule particles prepared by functional molecules encapsulated into hollow polymer particles enable broader applications, such as biomedicals, , cosmetics, micro/nanoreactors, , and self-healing agents . Additionally, fabrication approaches for hollow and capsular particles, such as the template-assisted approach, have been widely developed, in which a polymer shell layer is formed on sacrificial templates (e.g., Au, SiO 2 , and CaCO 3 ) by seeded polymerizations, layer-by-layer, , and surface-initiated (photo)­polymerizations. − Ge et al developed polyelectrolyte microcapsules by the layer-by-layer approach with microbubbles as templates .…”

Wettability-tuned silica particles for emulsion-templated microcapsules

“…5 Encapsulation imparts thermal stability to the core, resistance to leakage, and enhanced protection against undesired reactions with external agents. 6 Additionally, encapsulation resolves challenges with bulk active liquid processing (e.g., high viscosity) and increases the active surface area, which may assist in the mass transfer of small molecules across the interface. 7 Most commonly, encapsulation may be accomplished via hard-template approach, wherein a polymer shell is grown around a sacrificial core (e.g., layer-by-layer assembly atop a silica particle), 8 or via soft-template approach, which utilizes a stable biphasic system (e.g., interfacial polymerization in emulsions).…”

“…5 Encapsulation imparts thermal stability to the core, resistance to leakage, and enhanced protection against undesired reactions with external agents. 6 Additionally, encapsulation resolves challenges with bulk active liquid processing ( e.g. , high viscosity) and increases the active surface area, which may assist in the mass transfer of small molecules across the interface.…”