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The effect of PEO homopolymers on the behaviours and structural evolution of Pluronic F127 Smart Hydrogels for Controlled Drug Delivery Systems

Shriky, Banah
; 
Mahmoudi, N.
; 
Kelly, Adrian L.
; 
Isreb, Mohammad
; 
Publication Date
2022
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Keywords
Thermosensitive gel, Thermal properties, Rheological properties, Small Angle Neutron Scattering (SANS), Drug release, Colloidal crystals, Drug delivery systems (DDS), Injectables, Polyethylene glycol (PEG), Polyethylene oxide (PEO), Smart hydrogels
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© 2022 The Authors. Published by Elsevier. This work is licensed under a Creative Commons Attribution 4.0 International License.
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Abstract
Understanding the structure-property relationships of drug delivery system (DDS) components is critical for their development and the prediction of bodily performance. This study investigates the effects of introducing polyethylene oxide (PEO) homopolymers, over a wide range of molecular weights, into Pluronic injectable smart hydrogel formulations. These smart DDSs promise to enhance patient compliance, reduce adverse effects and dosing frequency. Pharmaceutically, Pluronic systems are attractive due to their unique sol-gel phase transition in the body, biocompatibility, safety and ease of injectability as solutions before transforming into gel matrices at body temperature. This paper presents a systematic and comprehensive evaluation of gelation and the interplay of microscopic and macroscopic properties under both equilibrium and non-equilibrium conditions in controlled environments, as measured by rheology in conjunction with time-resolved Small Angle Neutron Scattering (SANS). The non-equilibrium conditions investigated in this work offer a better understanding of the two polymeric systems’ complex interactions affecting the matrix thermo-rheological behaviour and structure and therefore the future release of an active pharmaceutical ingredient from the injectable DDS.
URI
http://hdl.handle.net/10454/18851
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Published version
Citation
Shriky B, Mahmoudi N, Kelly AL et al (2022) The effect of PEO homopolymers on the behaviours and structural evolution of Pluronic F127 Smart Hydrogels for Controlled Drug Delivery Systems. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 645: 128842
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https://doi.org/10.1016/j.colsurfa.2022.128842
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