Supporting data contents of "Tunable Pentapeptide Self-Assembled beta-Sheet Hydrogels": 1. CD spectra source data of three peptide hydrogels at 1 wt% and 2 wt%, corresponding to Fig 3A, S6A, S7A; 2. Cryo-FIB images of three peptide hydrogels at 1 wt% and 2 wt%, corresponding to Fig 4, S8, S9, S10; 3. CryoTEM images of D2I3 peptide hydrogels at 2 wt%, corresponding to Fig S11; 4. FTIR spectra source data of three peptides at 1 wt% and 2 wt%, corresponding to Fig 3B, S6B, S7B; 5. Analytical HPLC traces source data of three peptides, corresponding to Fig S1; 6. Rheology source data of three peptides at 1 wt% and 2 wt%, corresponding to Fig 2, S2, S3, S4, S5;