Many articles have reported that RADA16-I hydrogels have a fragile nature . Scaffolds with appropriate rheological properties are selected depending on the application. Bone cements (like poly(methyl methacrylate) have G' values round 10 4 -10 5 Pa to strongly support bone cavities while, on the other hand, collagen matrices with a G' value of ~4-60 Pa, exhibit excellent support for 3D tissue human fibroblasts . The hybrids used here behave similarly to RADA16-I under shear stress, behaving like liquids over 4 Pa value. This property is necessary to keep cells in suspension in the gel. Application of a certain shear stress results in a decrease in these properties, presumably due to disruption of the hydrogen bonds present between amino acids in the RADA16-I chains. In order to assess a thixotropic nature of our hybrids a few more rheological experiments has to be done. PuraStat® is commercially available as a application in a syringe to suppress small haemorrhage. We have proved that after sonication the hydrids spontainuosely reassemble, which is normally considered as a proof of returning to its viscoelastic properties after exposure to shear stress. However we cannot be sure if they can reassemble after the pressure of syring and be appropriate for eg. 3D printing or applications similar to PuraStar®. They can be considered as extremely soft, so maybe naming them in this case, a colloid paste would be more suitable.