Oil-based cyclo-oligosaccharide nanodevices for drug encapsulation

New encapsulation nanodevices were synthesized by emulsification of cyclo-oligosaccharides fully substituted by hydrophobic palmitic chains. These highly hydrophobic compounds, acquire oily-like behaviour at moderate temperatures (50 °C) and when submitted to ultrasounds (US) can undergo emulsificat...

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Bibliographic Details
Main Author: Jennifer Noro (author)
Other Authors: Loureiro, Ana Isabel Sá (author), Gonçalves, Filipa D. (author), Azóia, Nuno G. (author), Jung, Seunho (author), Silva, Carla (author), Cavaco-Paulo, Artur (author)
Format: article
Language:eng
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/1822/47808
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/47808
Description
Summary:New encapsulation nanodevices were synthesized by emulsification of cyclo-oligosaccharides fully substituted by hydrophobic palmitic chains. These highly hydrophobic compounds, acquire oily-like behaviour at moderate temperatures (50 °C) and when submitted to ultrasounds (US) can undergo emulsification. The improved emulsifying properties of modified cyclo-oligosaccharides are suitable to produce small and narrow sized nanoemulsions with ability to encapsulate amphiphilic molecules. Both encapsulation and delivery of a therapeutic drug, methotrexate (MTX), with amphiphilic character was assessed. The physicochemical properties of the cyclo-oligosaccharide nanoemulsions containing MTX were investigated by nuclear magnetic resonance (NMR), scanning transmission electron microscopy (STEM) and dynamic light scattering (DLS). The results revealed that the modified cyclo-oligosaccharides are potential platforms for the encapsulation of bio compounds for cosmetic and pharmaceutical purposes.