Nano Science and Technology Institute
Nanotech 2010 Vol. 3
Nanotech 2010 Vol. 3
Nanotechnology 2010: Bio Sensors, Instruments, Medical, Environment and Energy
Chapter 7: Nano Medical Sciences

Design of a lipid nanovesicle system encapsulating bacteriophages integrated in a multiple emulsion formulation: a proof-of-concept

Authors:V.M. Balc√£o, A.F. Azevedo, L.M. Castro, C.I. Costa, S. Santos, C.M. Matos, C.G. Moutinho, J.A. Teixeira, J.C. Azeredo
Affilation:University Fernando Pessoa and Institute for Biotechnology and Bioengineering, PT
Pages:459 - 462
Keywords:bacteriophage, nanoencapsulation, multiple emulsions
Abstract:of the optimized bacteriophage-encasing nanovesicles encompassed determination of particle hydrodynamic size, size distribution and particle charge via DLS, surface morphology via CRYO-SEM, and thermal analysis via DSC, whereas antimicrobial activity of the nanoemulsions produced was assessed in vitro using several bacterial strains. The optimized nanosystems showed no phase separation and encompassed nanovesicles with an average size of ca. 114 nm and an average Zeta Potential of ca. -13 mV, which were maintained stable over a storage timeframe of ca. 3 months. The method of inhalational targeting may have a high potential for the treatment of respiratory bacterial infections because the aerosol is delivered directly at the site of infection, thereby accelerating the action of bacterial predators, whereas protection for the bacteriophage against the immune system is provided by the lipid nanovesicles.
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