Poly(3-hydroxubutyrate-co-4-hydroxubutyrate)/bacterial cellulose composite porous scaffold: Preparation, characterization and biocompatibility evaluation

► Poly(3-hydroxubutyrate-co-4-hydroxubutyrate)/bacterial cellulose composite as biocomposite. ► Three-dimensional network structure composing of multi-distribution of pore size. ► A great increase in hydrophilicity and mechanical properties for composite scaffold. ► Biodegradability and biocompatibility become better than pure poly(3-hydroxubutyrate-co-4-hydroxubutyrate).