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4. Controlled fragrance release without microcapsules
The most direct way to influence the olfactory rendering of a fragrance and its evolution over time is to take advantage of the interactions between the fragrance molecules and the cosmetic base, which often includes polar and apolar phases and surfactants. These phases usually coexist in the form of oil-in-water (O/W) or water-in-oil (W/O) emulsions, microemulsions (O/W) or (W/O), or lamellar, hexagonal or cubic mesophases, stabilized by varying quantities of surfactants. The resulting morphologies can be very diverse, as illustrated in figure
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Controlled fragrance release without microcapsules
Microencapsulation methods for fragrances
Bibliography
Scientific communities
Bioencapsulation Research Group (BRG). This organization organizes several annual events, including a microencapsulation industry convention, a scientific symposium and a microencapsulation tutorial. The BRG publishes an online periodical entitled "Bioencapsulation news". http://bioencapsulation.net/
Controlled Release...
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