Embedding of Bacterial Cellulose Nanofibers within PHEMA Hydrogel Matrices: Tunable Stiffness Composites with Potential for Biomedical Applications
Artikel i vetenskaplig tidskrift, 2018

Bacterial cellulose (BC) and poly(2-hydroxyethyl methacrylate) (PHEMA) hydrogels are both considered as biocompatible materials with potential use in various biomedical applications including cartilage, cardiovascular stent, and soft tissue engineering. In this work, the "ever-wet" process based on in situ UV radical polymerization of HEMA monomer in BC nanofibrous structure impregnated with HEMA was used, and a series of BC-PHEMA composites was prepared. The composite structures were characterized by ATR FT-IR spectroscopy, WAXD, SEM, and TEM techniques. The strategy of using densified BC material of various cellulose fiber contents was applied to improve mechanical properties. The mechanical properties were tested under tensile, dynamic shear, and relaxation modes. The final composites contained 1 to 20 wt% of BC; the effect of the reinforcement degree on morphology, swelling capacity, and mechanical properties was investigated. The biocompatibility test of BC-PHEMA composites was performed using mouse mesenchymal stem cells.

Författare

Radka Hobzova

Czech Acad Sci

Jakub Hrib

Czech Acad Sci

Jakub Sirc

Czech Acad Sci

Evgeny Karpushkin

Czech Acad Sci

Jiri Michalek

Czech Acad Sci

Olga Janouskova

Czech Acad Sci

Paul Gatenholm

Paul Gatenholm Group

Journal of Nanomaterials

1687-4110 (ISSN) 1687-4129 (eISSN)

5217095

Ämneskategorier

Polymerkemi

Polymerteknologi

Kompositmaterial och -teknik

DOI

10.1155/2018/5217095