Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic Agents

Abstract Pluronic F127 copolymer is used as the main component to design injectable gels for therapeutic applications. Xanthan gum is added as an excipient to improve gel properties under physiological conditions. A polyphenol bioactive compound, curcumin, is selected as therapeutic agent with benef...

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Main Authors: Alexandra Lupu, Maria Bercea, Mihaela Avadanei, Luiza Madalina Gradinaru, Loredana Elena Nita, Vasile Robert Gradinaru
Format: Article
Language:English
Published: Wiley-VCH 2025-04-01
Series:Macromolecular Materials and Engineering
Subjects:
Online Access:https://doi.org/10.1002/mame.202400341
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author Alexandra Lupu
Maria Bercea
Mihaela Avadanei
Luiza Madalina Gradinaru
Loredana Elena Nita
Vasile Robert Gradinaru
author_facet Alexandra Lupu
Maria Bercea
Mihaela Avadanei
Luiza Madalina Gradinaru
Loredana Elena Nita
Vasile Robert Gradinaru
author_sort Alexandra Lupu
collection DOAJ
description Abstract Pluronic F127 copolymer is used as the main component to design injectable gels for therapeutic applications. Xanthan gum is added as an excipient to improve gel properties under physiological conditions. A polyphenol bioactive compound, curcumin, is selected as therapeutic agent with beneficial effects on metabolism and many diseases. The encapsulation efficiency and stability of formulations are investigated in an aqueous environment and in acetic acid solutions. The interactions between the hydrophobic polyphenol and the polymer matrix are investigated through rheology, DLS, and FTIR spectroscopy. The viscoelasticity of gels, correlated with the network structure, is influenced by xanthan gum or acetic acid addition. FTIR analysis of curcumin incorporated into the gel provides the evidence for interaction of the phenyl rings of both keto‐enol and di‐keto tautomers with the polymeric matrix. The spherical curcumin‐encapsulated micelles provided antioxidant properties. The kinetics of curcumin release from the Pluronic F127‐based gels suggests anomalous transport phenomena controlled by diffusion through the network and hydrodynamic effects. Both gel and lyophilized form of micellar encapsulated curcumin composites exhibited good stability for long‐term storage under ambient conditions.
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issn 1438-7492
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publishDate 2025-04-01
publisher Wiley-VCH
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series Macromolecular Materials and Engineering
spelling doaj-art-8a02a77db54c4ff2b5cf2866c03d3c222025-08-20T02:26:36ZengWiley-VCHMacromolecular Materials and Engineering1438-74921439-20542025-04-013104n/an/a10.1002/mame.202400341Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic AgentsAlexandra Lupu0Maria Bercea1Mihaela Avadanei2Luiza Madalina Gradinaru3Loredana Elena Nita4Vasile Robert Gradinaru5“Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania“Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania“Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania“Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania“Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 RomaniaFaculty of Chemistry Alexandru Ioan Cuza University of Iasi 11 Carol I Bd. Iasi 700506 RomaniaAbstract Pluronic F127 copolymer is used as the main component to design injectable gels for therapeutic applications. Xanthan gum is added as an excipient to improve gel properties under physiological conditions. A polyphenol bioactive compound, curcumin, is selected as therapeutic agent with beneficial effects on metabolism and many diseases. The encapsulation efficiency and stability of formulations are investigated in an aqueous environment and in acetic acid solutions. The interactions between the hydrophobic polyphenol and the polymer matrix are investigated through rheology, DLS, and FTIR spectroscopy. The viscoelasticity of gels, correlated with the network structure, is influenced by xanthan gum or acetic acid addition. FTIR analysis of curcumin incorporated into the gel provides the evidence for interaction of the phenyl rings of both keto‐enol and di‐keto tautomers with the polymeric matrix. The spherical curcumin‐encapsulated micelles provided antioxidant properties. The kinetics of curcumin release from the Pluronic F127‐based gels suggests anomalous transport phenomena controlled by diffusion through the network and hydrodynamic effects. Both gel and lyophilized form of micellar encapsulated curcumin composites exhibited good stability for long‐term storage under ambient conditions.https://doi.org/10.1002/mame.202400341Antioxidant PropertiesCurcuminPluronic F127Thermosensitive GelViscoelasticityXanthan Gum
spellingShingle Alexandra Lupu
Maria Bercea
Mihaela Avadanei
Luiza Madalina Gradinaru
Loredana Elena Nita
Vasile Robert Gradinaru
Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic Agents
Macromolecular Materials and Engineering
Antioxidant Properties
Curcumin
Pluronic F127
Thermosensitive Gel
Viscoelasticity
Xanthan Gum
title Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic Agents
title_full Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic Agents
title_fullStr Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic Agents
title_full_unstemmed Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic Agents
title_short Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic Agents
title_sort temperature sensitive pluronic f127 based gels incorporating natural therapeutic agents
topic Antioxidant Properties
Curcumin
Pluronic F127
Thermosensitive Gel
Viscoelasticity
Xanthan Gum
url https://doi.org/10.1002/mame.202400341
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