Abstract
Nanocomposite materials based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) and modified mineral clay layered double hydroxides (LDH-SDS) were explored as novel nanostructured materials for potential tissue engineering applications. The mineral clay inorganic phase was modified with an anionic long-chain structure of carbon atoms, such as sodium dodecyl sulfate, in order to increase the compatibility between the two phases. The melt intercalation method used for nanocomposite fabrication ensures a good dispersion of the modified LDH-SDS within the polymer matrix without using a toxic solvent (chloroform). The nanocomposites were found to have an intercalated/exfoliated structure with an enhanced Young modulus and increased stiffness. This could allow them to be considered for autologous stem cells dressings in the view of efficient wound healing applications.
Highlights
Polyhydroyalkanoates (PHAs) represent a versatile category of naturally occurring biodegradable polyesters from renewable sources [1]
XRDshows shows the diffraction plans and changes exfoliation the diffraction plans and changes of of the interlayer distance, which appear in the mineral clay
The modification of mineral clay withwith the the anionic long-chain structure of carbon atoms, such sodiumdodecyl dodecylsulfate, sulfate,has hasincreased increased the the anionic long-chain structure of carbon atoms, such asassodium compatibility between the two phases, namely, an organic phase represented by polyester and an compatibility between the two phases, namely, an organic phase represented by polyester and an inorganic phase represented by mineral clay type layered double hydroxides
Summary
Polyhydroyalkanoates (PHAs) represent a versatile category of naturally occurring biodegradable polyesters from renewable sources [1] In recent years, they have represented a good alternative to non-biodegradable polymers because they are biopolymers, in which the structural units are bonded by the ester linkage. Clay minerals are very extended compounds with growing interest for use as nanocomposite materials as they can replace traditional fillers. This ability is directly related to their size; crystalline structure; and properties, namely, a high specific surface area, good rheological properties, and good adsorptive capacity. Materials 2020, 13, x FOR PEER REVIEW normal wound healing process In this thisstudy, study,novel novel nanocomposites fabricated by intercalation melt intercalation of.
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