Abstract: A pressure impulse mitigating barrier including a crosslinked gel, the gel including water and gelatin which has been crosslinked using a functional silane compound, the compound including an electrophilic group (where the electrophilic group is not a silane) and a group of formula (B) where R is a C1-10 alkyl group, C6-10 aryl group, or C7-12 arylalkyl group; R? is a C1-10 alkyl group, C6-10 aryl group, or C7-12 arylalkyl group; n is 0-1, and where the functional silane has Mw of 800 g/mol or less.

Abstract: A pressure impulse mitigating barrier comprising a cross-linked gel comprising water and gelatin which has been crosslinked using (I) a functional silane compound comprising an electrophilic group (which is not a silane) and a group of formula (A) where R is H, a C1-10 alkyl group, C6-10 aryl group, or C7-12 arylalkyl group; R? is C1-10 alkyl group or C6-10 aryl group, or C7-12 arylalkyl group; n is 0-2, with the proviso that at least one R is not H; said functional silane having an Mw of 800 g/mol or less; (II) a transition metal, lanthanide or Al compound; or (III) an enzyme such as transglutaminase.