In order to characterize nanofibre formation we used a combination of AFM and TEM, and to determine gel morphology we used cryoSEM. The peptide fibres formed by RADA16-I, RADA-IM, RADA-GHK and RADA-KGHK have a similar shape visible in topographic images. The fiber length estimated from AFM images ranges between 100 and 800 nm, with a mean height of 5-6 nm. Selected topographic images are presented in Fig. . In the next step those samples with formed fibres were sonicated to cause disintegration into smaller particles (Fig. ), then incubated at 37°C for the next 24 h. All hybrids showed the same properties of reassembly as the original length fibres, without compromising the original concept of the hydrogel (Fig. ), and demonstrated an ability to reassemble in a short time.