Alginate as a biopolymer is an ideal candidate to test this hypothesis, as it can be easily crosslinked by incubation with aqueous CaCl 2 and is often employed in biofabrication, but usually suffers from poor printability due to poor rheological properties. To improve the printability of alginate often pre-crosslinking or composite systems are used. Here, we present an exceedingly simple alternative. We simply mixed the liquid A-PPheOzi 15 -A polymer with liquid alginate and cooled the mixture leading to gelation. We characterized this hybrid system via rheology prior to the printing process (Figure ). A 17 wt.% aqueous hybrid system (A-PPheOzi 15 -A/alginate 15:2 w/w) exhibited storage moduli up to 11 kPa (Figure ) and a pronounced shear thinning response favorable for extrusion based printing (Figure ).