Article (Scientific journals)
Bioactive dextran-based scaffolds from emulsion templates co-stabilized by poly(lactic-co-glycolic acid) nanocarriers.
Ducrocq, Maude; Rinaldi, Arianna; Halgand, Boris et al.
2025In Colloids and Surfaces. B, Biointerfaces, 245, p. 114342
Peer Reviewed verified by ORBi
 

Files


Full Text
DUCROCQ M - 2025 - COLLOIDS SURF B - 245 - 114342 - AUTHOR'S VERSION.pdf
Embargo Until 01/Aug/2025 - Author postprint (1.1 MB)
Request a copy
Annexes
DUCROCQ M - 2025 - COLLOIDS SURF B - 245 - 114342 - SUP INFO.pdf
(533.25 kB)
SUPPORTING INFO
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
foam; biomaterial; scaffold
Abstract :
[en] Porous polymer scaffolds are widely investigated as temporary implants in regenerative medicine to repair damaged tissues. While biocompatibility, degradability, mechanical properties comparable to the native tissues and controlled porosity are prerequisite for these scaffolds, their loading with pharmaceutical or biological active ingredients such as growth factors, in particular proteins, opens up new perspective for tissue engineering applications. This implies the development of scaffold loading strategies that minimize the risk of protein denaturation and allow to control their release profile. This work reports on a straightforward method for preparing bioactive dextran-based scaffolds from high internal phase emulsion (HIPE) templates containing poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) serving both as co-stabilizers for the emulsion and nanocarriers for drug or therapeutic protein models. Scaffold synthesis are achieved by photocuring of methacrylated dextran located in the external phase of a HIPE stabilized by the NPs in combination or not with a non-ionic surfactant. Fluorescent labelling of the NPs highlights their integration in the scaffold. The introduction of NPs, and even more so when combined with a surfactant, increases the stability and mechanical properties of the scaffolds. Cell viability tests demonstrate the non-toxic nature of these NPs-loaded scaffolds. The study of the release of a model protein from the scaffold, namely lysozyme, shows that its encapsulation in nanoparticles decreases the release rate and provides additional control over the release profile.
Research Center/Unit :
CESAM - Complex and Entangled Systems from Atoms to Materials - ULiège [ BE ]
CERM - Center for Education and Research on Macromolecules - ULiège [ BE ]
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Ducrocq, Maude ;  University of Liège [ULiège] - Complex and Entangled Systems from Atoms to Materials [CESAM] Research Unit - Center for Education and Research on Macromolecules [CERM] - Belgium ; University of Angers - INSERM - France ; University of Nantes - Oniris - University of Angers - CHU Nantes - INSERM - Regenerative Medicine and Skeleton - France
Rinaldi, Arianna ;  University of Angers - INSERM - France
Halgand, Boris ;  University of Nantes - Oniris - University of Angers - CHU Nantes - INSERM - Regenerative Medicine and Skeleton - France
Veziers, Joëlle ;  University of Nantes - Oniris - University of Angers - CHU Nantes - INSERM - Regenerative Medicine and Skeleton - France
Guihard, Pierre ;  University of Nantes - Oniris - University of Angers - CHU Nantes - INSERM - Regenerative Medicine and Skeleton - France
Boury, Frank;  University of Angers - INSERM - France
Debuigne, Antoine  ;  University of Liège [ULiège] - Complex and Entangled Systems from Atoms to Materials [CESAM] Research Unit - Center for Education and Research on Macromolecules [CERM] - Belgium
Language :
English
Title :
Bioactive dextran-based scaffolds from emulsion templates co-stabilized by poly(lactic-co-glycolic acid) nanocarriers.
Publication date :
January 2025
Journal title :
Colloids and Surfaces. B, Biointerfaces
ISSN :
0927-7765
eISSN :
1873-4367
Publisher :
Elsevier B.V., Netherlands
Volume :
245
Pages :
114342
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fund for Scientific Research
INSERM - French Institute of Health and Medical Research
Funding text :
This work was funded by the Institut National de la Sante et de la Recherche Medicale (INSERM) the University of Nantes, and the University of Angers. M.D obtained a postdoctoral fellowship from " Région Pays de la Loire " through Bioactive Scaffolds from Pickering Emulsions for Enhanced Bone Osteogenesis "Speebo" project, part of the Bioregate program. A.D. is FNRS Senior Research Associate and thanks the F.R.S.-FNRS for financial support. The authors acknowledge the SC3M plateform from the Inserm/NU/ONIRIS UMR1229 RMeS Laboratory and SFR François Bonamy-UMS 016, as well as the GIGA Cell Imaging core facility. F.B. also thanks the French National Agency for Research (ANR) under the frame of EuroNanoMed III (project GLIOSILK) [ANR-19-ENM3-0003-01] (FB as a member of the funded team) and the "Comité Départemental de Maine-et-Loire de la Ligue contre le Cancer" under the frame of the FusTarG project (FB as a member of the funded team). The program VINCI 2020 - Université Franco Italienne (project number: C3-1419, "Novel nanotechnological approaches for glioblastoma targeting" attributed to FB) also supported this research through a PhD fellowship to AR. The authors are also grateful to Dr. Virginie Bertrand from ULiege for skillful assistance with cell culture tests, to Gregory Cartigny, Valerie Collard and Martine Dejeneffe from ULiege for their regular help with polymer synthesis, NMR and microscopy analyses.
Available on ORBi :
since 13 November 2024

Statistics


Number of views
17 (2 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
0
Scopus citations®
without self-citations
0
OpenCitations
 
0
OpenAlex citations
 
0

Bibliography


Similar publications



Contact ORBi