Similarly, TEM images showed a dense interwoven and tangled network of fibres for all the peptide hybrids (Fig. ). RADA16-I fibres seemed to be straight, whereas RADA-IM, RADA-GHK and RADA-KGHK fibres appeared thinner and more delicate. All fibres had significant lengths varying between 100 and 600 nm. RADA16-I itself created fibres of 15-20 nm thickness, whereas RADA-IM fibres were 6 to 8 nm thick and RADA-GHK and RADA-KGHK fibres were about 3 nm thick. However, TEM and AFM results confirmed the potential use of these hybrids as scaffolds.