Highly Stable Phase Change Material Emulsions Fabricated by Interfacial Assembly of Amphiphilic Block Copolymers during Phase Inversion

Park, Hanhee; Han, Dong Wan; Kim, Jinwoong

doi:10.1021/la504424u

Cited by 18 publications

(6 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…can be processed into a membrane material for effective oil−water separation. Besides, the sol−gel process, 169 electrospinning technique, 171 chemical vapor deposition, 172 phase inversion, 173 surface modification, 15 and physical blending 174 were often adopted as efficient preparation or modification techniques.…”

Section: Basic Theory Of Surface Wettabilitymentioning

confidence: 99%

A Review on Oil/Water Mixture Separation Material

Zhang

et al. 2020

Ind. Eng. Chem. Res.

138

View full text Add to dashboard Cite

Frequent oil spill accidents and leakage of organic solvent destroy aquatic ecosystems and threaten marine lives. Separation of the oily pollutant from water with material has long been treated as an effective and environmentally friendly solution. As a result, great efforts have been made to construct a material with high oil adsorption capacity, high oil−water separation efficiency, high oil−water selectivity, and superior recyclability. Surface chemical composition and surface topography are two key factors that determine the surface wettability and oil−water separation efficiency of a material. In this review, we summarize the popular oil−water separation materials during the past five years, including adsorption material, filtration material, and smart controllable special wettable separation material. Before that, a basic theory of surface specific wettability is introduced. The perspectives and challenges of each material are also highlighted.

show abstract

Section: Basic Theory Of Surface Wettabilitymentioning

confidence: 99%

A Review on Oil/Water Mixture Separation Material

Zhang

et al. 2020

Ind. Eng. Chem. Res.

138

View full text Add to dashboard Cite

show abstract

“…A feature of this emulsion system is that the O/W interface is composed of PEO- b -PCL and lecithin, thus providing a mechanically resilient thin polymer membrane (Figure A). The phase inversion composition method has been shown to enable effective assembly of such a polymer membrane . In fact, coassembly of a critical concentration of lecithin with PEO- b -PCL not only made the interface tightly packed but also enhanced skin permeability .…”

Section: Resultsmentioning

confidence: 99%

Nanoemulsion Vehicles as Carriers for Follicular Delivery of Luteolin

Shin

Choi²,

Song³

et al. 2018

ACS Biomater. Sci. Eng.

Self Cite

View full text Add to dashboard Cite

Luteolin (3′,4′,5,7-tetrahydroxyflavone), a type of flavonoid found in medicinal herbs and vegetables, has been of great interest due to its antioxidative, anti-inflammatory, and anticarcinogenic effects. Despite these beneficial biological properties, the ease with which luteolin forms molecular crystals in conventional aqueous formulations has hampered much wider applications. In this study, we introduce an oil-in-water (O/W) nanoemulsion vehicle system for enhanced follicular delivery of luteolin. The luteolin-loaded nanoemulsion, which had an average hydrodynamic size of approximately 290 nm, was produced by the assembly of poly(ethylene oxide)-block-poly(ε-caprolactone) and lecithin at the O/W interface. The luteolin-loaded nanoemulsion showed outstanding stability against drop coalescence and aggregation. This was confirmed from the slight drop size increase after repeated freeze–thaw cycling and long-term storage. Moreover, in vivo hair growth evaluation demonstrated that the luteolin-loaded nanoemulsions fabricated in this study possessed the hair growth-promotion activity, which is comparable with the case of using a luteolin solution in an organic solvent.

show abstract

“…It is proposed that the obtained results are closely related to the formation of the block copolymer layer at the oil-water interface. 38 To exert much stronger mechanical stress and break up the interface, a repeated freeze-thaw test of the emulsions was performed (Fig. 7).…”

Section: Resultsmentioning

confidence: 99%

Fabrication and stabilization of nanoscale emulsions by formation of a thin polymer membrane at the oil–water interface

et al. 2015

Self Cite

View full text Add to dashboard Cite

This study introduces a robust approach for the fabrication of extremely stable oil-in-water nanoemulsions in which the interface is stabilized by assembly of amphiphilic poly(ethylene oxide)-block-poly(3caprolactone) (PEO-b-PCL) copolymers. Phase inversion emulsification, induced by variation of the water volume fraction, facilitated effective assembly of the block copolymers at the oil-water interface.Subsequent application of simple probe-type sonication reduced the droplet size of the precursor emulsions to approximately 200 nm. The prepared nanoemulsions were surprisingly stable against drop coalescence and aggregation, as confirmed by analysis of changes in the droplet size after repeated freeze-thaw cycling and by monitoring the creaming kinetics under conditions of high ionic strength and density mismatch. The results highlight that good structural assembly of the PEO-b-PCL block copolymers at the oil-water interface generated a mechanically flexible but tough polymer film, thereby remarkably improving the emulsion stability.

show abstract

Highly Stable Phase Change Material Emulsions Fabricated by Interfacial Assembly of Amphiphilic Block Copolymers during Phase Inversion

Cited by 18 publications

References 32 publications

A Review on Oil/Water Mixture Separation Material

A Review on Oil/Water Mixture Separation Material

Nanoemulsion Vehicles as Carriers for Follicular Delivery of Luteolin

Fabrication and stabilization of nanoscale emulsions by formation of a thin polymer membrane at the oil–water interface

Contact Info

Product

Resources

About