Journal
ADVANCED MATERIALS TECHNOLOGIES
Volume -, Issue -, Pages -Publisher
WILEY
DOI: 10.1002/admt.202300344
Keywords
cell microenvironment; electrospinning; imprinting; nanotechnology
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Electrospinning is a powerful method for replicating the fibrous structure of the extracellular matrix. However, the random fiber deposition limits the reproduction of fiber mesh morphology on multiple samples. A multi-replication process combining electrospinning and imprinting is developed to accurately reproduce fiber morphology on different cell culture substrates. This process allows for controlled engineering of well-characterized cell microenvironments to investigate cell-material interactions.
Electrospinning is a powerful method to fabricate structures resembling the fibrous texture of the native extracellular matrix. However, the random fiber deposition of the process hinders a faithful reproduction of the fiber mesh morphology on multiple samples, which raises difficulties in experimental designs to systematically test and assess cell response in vitro. A multi-replication process to precisely reproduce the fiber morphology on different cell culture substrates is developed. The process involves a decoupling of the fiber structure, material, and porosity by combining the key advantages of electrospinning and imprinting. With this, fiber patterns having a diameter between 0.4 and 2.8 & mu;m are replicated on polycarbonate, polystyrene, poly(methyl methacrylate), and cyclic olefin copolymer films. Identical fiber morphology is, then, obtained on porous films having a pore diameter between 2 and 12 & mu;m. Having full control over these parameters allows the multireplication process to engineer well-characterized cell microenvironments, which can potentially be used to further investigate complex cell-material interactions.
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