Abstract: The present application generally discloses a digestive-safe noise making device for placement in a product, such as a toy. The digestive-safe noise making device includes a wall forming a body. The body has a passable structure allowing for the passage of digestive material if ingested by a user. Passable structures presented herein include one or more kinks as well as one or more apertures. The passable structure prevents the noise making device from blocking digestive processes when traveling through or lodged within a portion of the GI tract. At least a portion of the noise making device may be made from digestible material.

Abstract: Provided is a peptide including X-(Xaa1)a-(Xaa2)b-Y-(Xaa3)c-(Xaa4)d-Z, or a salt or amide thereof, in which each of X and Z is independently selected from Asn, Cys, Gln, Gly, Ser, Thr and Tyr; in which one of Xaa1 and Xaa2 is His and the other of Xaa1 and Xaa2 is Arg; in which one of Xaa3 and Xaa4 is His and the other of Xaa3 and Xaa4 is Arg; in which the amino functional group of X is, optionally, acylated; in which the carboxylate functional group of Z is, optionally, amidated; in which Y is selected from Ala and Trp; in which each of a and d is independently an integer from 2 to 4; and each of b and c is independently an integer from 2 to 4. The peptide may be used in therapeutic approaches.

Abstract: The present invention is directed to a peptide for the delivery of anionic materials, such as anionic therapeutic agents, across a biological barrier, and methods of use thereof. The invention relates to a peptide comprising, or consisting of: X-(Xaa1)a-(Xaa2)b-Y-(Xaa3)c-(Xaa4)d-Z, in which each of X and Z is independently selected from Asn, Cys, Gln, Gly, Ser, Thr and Tyr; in which one of Xaa1 and Xaa2 is His and the other of Xaa1 and Xaa2 is Arg; in which one of Xaa3 and Xaa4 is His and the other of Xaa3 and Xaa4 is Arg; in which the amino functional group of X is, optionally, acylated; in which the carboxylate functional group of Z is, optionally, amidated; in which Y is selected from Ala and Trp; in which each of a and d is independently 2 to 4; and each of b and c is independently 2 to 4, or a salt or amide thereof.