Self-assembly and thermoreversible rheology of perfluorocarbon nanoemulsion-based gels with amphiphilic copolymers
نویسندگان
چکیده
Perfluorocarbon (PFC) nanoemulsions have great potential in biomedical applications due to their unique chemical stability, biocompatibility, and possibilities for enhanced oxygen supply. The addition of amphiphilic block copolymers promotes the formation long-term stability emulsion-based gels. In this work, we report systematic study impact adding triblock water-in-perfluorocarbon on structure viscoelasticity, utilizing small-angle neutron X-ray scattering (SANS SAXS) rheology. We find that an intermediate concentration copolymer yields highest strength attraction between droplets, corresponding a maximum elasticity storage modulus. viscoelastic moduli can be tuned via amount surfactant along with volume fraction aqueous phase. SANS provides detail nanostructure fit spherical core-shell form factor square-well hard sphere factor. PFC nanoemulsion system displays thermoresponsive thermoreversible properties temperature sweeps.
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ژورنال
عنوان ژورنال: Colloids and Surfaces B: Biointerfaces
سال: 2021
ISSN: ['0927-7765', '1873-4367']
DOI: https://doi.org/10.1016/j.colsurfb.2021.111641