Programming biodegradation across all stages
Nature is where everything originates and eventually returns. It is precisely from nature that renewable residues are extracted, and it is back to nature where ANIPH’s wound dressings and packaging biodegrade, closing the loop of their lifecycle.
Nature:
ANIPH’s materials begin in nature and ultimately return to it.
Renewable biological residues serve as our starting point, and the final wound dressings and packaging are designed to biodegrade safely in natural environments, closing the loop of their lifecycle.
Renewable residues & biotechnological routes:
Sugar-rich liquor residues and hydrolysed yeast from brewing streams provide the carbon and nitrogen sources needed for fermentation.
Together with additional raw materials such as volatile fatty acids, these inputs are tested as co-feedstocks to produce PHBV with a controlled and elevated 3HV content (15–30%). By adjusting feedstock combinations and fermentation parameters, we can precisely influence the chemical composition and crystallinity of the resulting polymers.
Bio-Based polymers:
During upstream production, renewable residues and selected raw materials are converted through optimised fermentation into PHBV and PHN.
At this stage, the focus is on achieving the required polymer structure and crystallinity, while ensuring efficient extraction. These biopolymers form the sustainable base material for later formulation work.
PHBV/PHN formulation and compounding:
A formulation and compounding strategy will be developed to achieve stable and processable PHA compounds for the different target applications while programming biodegradation.
This allows us to balance processability, mechanical and thermal properties with a safe, enhanced biodegradation, all aimed at developing the target compounds.
Bio-based compounds:
As a result of the previous process, PHBV and PHN compounds are developed.
With the addition of specific additives, including stabilisers, processing and biodegradability enhancers, and nucleating agents, ANIPH bio-based compound are the direct inputs for both extrusion and 3D printing.
Cast/blown extrusion & 3D printing transformation
Through cast or blown extrusion and 3D printing, the bio-based compounds are transformed into our final products. Parameters such as design, surface-to-volume ratio, and processing conditions are fine-tuned to optimise performance.
In 3D printing, additional medical bio-additives, such as probiotic cellulose, provide alternatives to conventional antibiotics for the wound dressings.
Products:
The final outputs include single-use wound dressings and their water-barrier packaging.
Both are developed to be recyclable and biodegradable across relevant environments, supporting both product integrity and ecological responsibility.
Biodegradation:
Once used, ANIPH’s products naturally biodegrade in suitable conditions, completing their journey from nature back to nature.