Using supramolecular self-assembled nanocomposite materials made from protein and polysaccharide components is becoming more popular because of their unique properties, such as biodegradability, hierarchical structures, and tunable multifunctionality. However, the fabrication of these materials in a reproducible way remains a challenge. This study presents a new evaporation-induced self-assembly method producing layered hydrogel membranes (LHMs) using tropocollagen grafted by partially deacetylated chitin nanocrystals (CO-g-ChNCs). ChNCs help stabilize tropocollagen's helical conformation and fibrillar structure by forming a hierarchical microstructure through chemical and physical interactions. The LHMs show improved mechanical properties, cytocompatibility, and the ability to control drug release using octenidine dihydrochloride (OCT) as a drug model. Because of the high synergetic performance between CO and ChNCs, the modulus, strength, and toughness increased significantly compared to native CO. The biocompatibility of LHM was tested using the normal human dermal fibroblast (NHDF) and the human osteosarcoma cell line (Saos-2). Cytocompatibility and cell adhesion improved with the introduction of ChNCs. The extracted ChNCs are used as a reinforcing nanofiller to enhance the performance properties of tropocollagen hydrogel membranes and provide new insights into the design of novel LHMs that could be used for various medical applications, such as control of drug release in the skin and bone tissue regeneration.

• MeSH
• biokompatibilní materiály * chemie   MeSH
• chitin * chemie   MeSH
• fibroblasty MeSH
• hydrogely * chemie   MeSH
• iminy farmakokinetika   MeSH
• konformace proteinů, alfa-helix MeSH
• léky s prodlouženým účinkem * chemie   MeSH
• lidé MeSH
• mechanické jevy MeSH
• membrány chemie   MeSH
• nádorové buněčné linie MeSH
• nanočástice chemie   MeSH
• nanokompozity * chemie   MeSH
• pyridiny farmakokinetika   MeSH
• tropokolagen * chemie   MeSH
• uvolňování léčiv MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• biokompatibilní materiály * MeSH
• chitin * MeSH
• hydrogely * MeSH
• iminy MeSH
• léky s prodlouženým účinkem * MeSH
• octenidine MeSH Prohlížeč
• pyridiny MeSH
• tropokolagen * MeSH

This review summarizes recent work on manufacturing biocomposites suitable for bone tissue engineering. There is a great need to engineer multi-phase (i.e. composite) materials that combine the advantages exhibited by each component of the material, with a structure and composition similar to that of natural bone. The discussion concentrates on the preparation of nanocomposites containing hydroxyapatite particles (one of the most widely used bioceramics materials) with polymer matrices. Special attention is paid to the preparation of nanocomposites with individual (non-aggregated) nanoparticles because this is a key problem in nanotechnology industrialization. Controlling the mixing between so two dissimilar phases is a critical challenge in the design of these inorganic-organic systems. Several approaches that may be applied to overcome this problem will be described in this review.

• MeSH
• biokompatibilní materiály chemie   MeSH
• chemické modely MeSH
• hydroxyapatit chemie   MeSH
• nanokompozity chemie   MeSH
• polymery chemie   MeSH
• povrchové vlastnosti MeSH
• velikost částic MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• přehledy MeSH
• Názvy látek
• biokompatibilní materiály MeSH
• hydroxyapatit MeSH
• polymery MeSH