Preparation and antimicrobial evaluation of polyion complex (PIC) nanoparticles loaded with polymyxin B
Research output: Contribution to journal › Article › peer-review
Authors
Colleges, School and Institutes
Abstract
Here, we describe novel polyion complex (PIC) particles for the delivery of Polymyxin B (Pol-B), an antimicrobial peptide currently used in the clinic as a last resort antibiotic against multidrug-resistant gram-negative bacteria. A range of conditions for the controlled assembly of Pol-B with poly(styrene sulphonate) (PSS) has been identified which let us prepare stable colloidal PIC particles. This way, PIC particles containing different Pol-B:PSS ratios have been prepared and their stability under simulated physiological conditions (i.e. pH, osmotic pressure and temperature) characterised. Furthermore, preliminary evaluation of the antimicrobial activity of these Pol-B containing PIC particles has been performed, by monitoring their effect on the growth of Pseudomonas aeruginosa, an opportunistic gram-negative bacterium.
Details
Original language | English |
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Pages (from-to) | 478–486 |
Journal | European Polymer Journal |
Volume | 87 |
Early online date | 26 Aug 2016 |
Publication status | Published - Feb 2017 |
Keywords
- PIC particles , Polyelectrolyte complexes , Antimicrobials , Drug delivery