Abstract: Compositions, peptide solutions and macroscopic scaffolds of self-assembling peptides consisting essentially of non-ionic, polar amino acids are provided. Particular peptides include those comprising, or consisting essentially of, serine, threonine, tyrosine, cysteine, glutamine, asparagine, methionine, tryptophan, hydroxy-proline, and combinations thereof. Methods of sterilizing the self-assembling peptides, and scaffolds comprising the peptides are also provided.

Abstract: Materials and methods for forming a bronchial obstruction are provided. A peptide comprising between about 7 amino acids and about 32 amino acids in a solution may be introduced to a target site. A hydrogel barrier may be provided at the target site in order to provide a bronchial obstruction.

Abstract: Methods and devices for sterilizing viscous peptide compositions which have shear thinning rheological properties at high concentrations.

Abstract: Methods and devices for sterilizing viscous peptide compositions which have shear thinning rheological properties at high concentrations.

Abstract: Compositions, peptide solutions and macroscopic scaffolds of self-assembling peptides consisting essentially of non-ionic, polar amino acids are provided. Particular peptides include those comprising, or consisting essentially of, serine, threonine, tyrosine, cysteine, glutamine, asparagine, methionine, tryptophan, hydroxy-proline, and combinations thereof. Methods of sterilizing the self-assembling peptides, and scaffolds comprising the peptides are also provided.

Abstract: Self-assembling peptides comprising non-ionic polar amino acids for anti-adhesion are provided herein. Compositions, peptide solutions and macroscopic scaffolds of self-assembling peptides consisting essentially of non-ionic, polar amino acids are provided to prevent adhesion or to provide anti-adhesion properties. Particular peptides include those consisting essentially of, serine, threonine, tyrosine, cysteine, glutamine, asparagine, methionine, tryptophan, hydroxy-proline, and combinations thereof. Methods and kits are also provided.

Abstract: Self-assembling peptides comprising non-ionic polar amino acids for anti-adhesion are provided herein. Compositions, peptide solutions and macroscopic scaffolds of self-assembling peptides consisting essentially of non-ionic, polar amino acids are provided to prevent adhesion or to provide anti-adhesion properties. Particular peptides include those consisting essentially of, serine, threonine, tyrosine, cysteine, glutamine, asparagine, methionine, tryptophan, hydroxy-proline, and combinations thereof. Methods and kits are also provided.

Abstract: Methods and devices for sterilizing viscous peptide compositions which have shear thinning rheological properties at high concentrations.

Abstract: Methods and devices for sterilizing viscous peptide compositions which have shear thinning rheological properties at high concentrations.

Abstract: Synthetic peptide hydrogel solutions having a pH level of about 3.5 or less and a tonicity within an isotonic osmolality range for use in cell culture experimentation. Related kits and cell culture methods are also disclosed.

Abstract: Compositions, peptide solutions and macroscopic scaffolds of self-assembling peptides consisting essentially of non-ionic, polar amino acids are provided. Particular peptides include those comprising or consisting essentially of serine, threonine, tyrosine, cysteine, glutamine, asparagine, methionine, tryptophan, hydroxy-proline, and combinations thereof. Methods of sterilizing the self-assembling peptides, and scaffolds comprising the peptides are also provided.

Abstract: Methods and devices for sterilizing viscous peptide compositions which have shear thinning rheological properties at high concentrations.

Abstract: Materials and methods for treatment of pulmonary leakage are provided. A peptide comprising between about 7 amino acids and about 32 amino acids in a solution may be introduced to a target site. A hydrogel barrier may be provided at the target site in order to treat the pulmonary leakage.

Abstract: Materials and methods for forming a bronchial obstruction are provided. A peptide comprising between about 7 amino acids and about 32 amino acids in a solution may be introduced to a target site. A hydrogel barrier may be provided at the target site in order to provide a bronchial obstruction.

Abstract: Materials and methods for treatment of pulmonary bulla are provided. A peptide comprising between about 7 amino acids and about 32 amino acids in a solution may be introduced to a target site. A hydrogel barrier may be provided at the target site in order to treat the pulmonary bulla.

Abstract: The present disclosure provides peptide compositions (e.g., of self-assembling peptides) with particular attributes (e.g., peptide identity, peptide concentration, pH, ionic strength [including salt identity and/or concentration), etc that show particularly useful material properties. The present disclosure also provides technologies for selecting and/or formulating particular peptide compositions useful in specific contexts. In some embodiments, provided peptide compositions have an elevated pH within the range of about 2.5 to about 3.5 and/or an ionic strength that is above that of a corresponding composition of the same peptide, at the same concentration, in water, but is below a critical salt point for the peptide (e.g., so that the composition is not cloudy).