Developing strategies to optimize the anchorage between electrospun nanofibers and hydrogels for multi-layered plasmonic biomaterials.

Autor:	Ziai Y; Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences Warsaw 02-106 Poland fpierini@ippt.pan.pl., Lanzi M; Department of Industrial Chemistry, University of Bologna 40136 Bologna Italy., Rinoldi C; Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences Warsaw 02-106 Poland fpierini@ippt.pan.pl., Zargarian SS; Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences Warsaw 02-106 Poland fpierini@ippt.pan.pl., Zakrzewska A; Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences Warsaw 02-106 Poland fpierini@ippt.pan.pl., Kosik-Kozioł A; Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences Warsaw 02-106 Poland fpierini@ippt.pan.pl., Nakielski P; Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences Warsaw 02-106 Poland fpierini@ippt.pan.pl., Pierini F; Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences Warsaw 02-106 Poland fpierini@ippt.pan.pl.
Jazyk:	angličtina
Zdroj:	Nanoscale advances [Nanoscale Adv] 2024 Jan 30; Vol. 6 (4), pp. 1246-1258. Date of Electronic Publication: 2024 Jan 30 (Print Publication: 2024).
DOI:	10.1039/d3na01022h
Abstrakt:	Polycaprolactone (PCL), a recognized biopolymer, has emerged as a prominent choice for diverse biomedical endeavors due to its good mechanical properties, exceptional biocompatibility, and tunable properties. These attributes render PCL a suitable alternative biomaterial to use in biofabrication, especially the electrospinning technique, facilitating the production of nanofibers with varied dimensions and functionalities. However, the inherent hydrophobicity of PCL nanofibers can pose limitations. Conversely, acrylamide-based hydrogels, characterized by their interconnected porosity, significant water retention, and responsive behavior, present an ideal matrix for numerous biomedical applications. By merging these two materials, one can harness their collective strengths while potentially mitigating individual limitations. A robust interface and effective anchorage during the composite fabrication are pivotal for the optimal performance of the nanoplatforms. Nanoplatforms are subject to varying degrees of tension and physical alterations depending on their specific applications. This is particularly pertinent in the case of layered nanostructures, which require careful consideration to maintain structural stability and functional integrity in their intended applications. In this study, we delve into the influence of the fiber dimensions, orientation and surface modifications of the nanofibrous layer and the hydrogel layer's crosslinking density on their intralayer interface to determine the optimal approach. Comprehensive mechanical pull-out tests offer insights into the interfacial adhesion and anchorage between the layers. Notably, plasma treatment of the hydrophobic nanofibers and the stiffness of the hydrogel layer significantly enhance the mechanical effort required for fiber extraction from the hydrogels, indicating improved anchorage. Furthermore, biocompatibility assessments confirm the potential biomedical applications of the proposed nanoplatforms. Competing Interests: There are no conflicts to declare. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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