Development of mycelium-reinforced dialdehyde cellulose–polyvinyl alcohol composites for emerging high-performance sustainable materials

Dialdehyde cellulose (DAC), featuring reactive carbonyl groups introduced via oxidation of hemp-derived cellulose fibers (confirmed by FTIR spectroscopy), was synthesized to promote strong hydrogen bonding with polyvinyl alcohol (PVA) for composite development. In this study, DAC was incorporated into hydrogel composites reinforced with mycelium from three fungal species: Ganoderma boninense , Pleurotus eryngii , and P. ostreatus , thereby enabling direct comparison of their effects on composite