Abstract: Skin penetrating polypeptide and pharmaceutical compositions and methods of use thereof are provided. Typically, the peptides are between 3 and 100 amino acids, more preferably about 5, 6, 7, 8, 9, or 10 amino acids, cyclic, binds to a skin protein such as a keratin with a Kd of between about 10-3 M and about 10-8 M. Preferably the peptides increase absorption or penetration of an active agent into the skin. In silico methods of screening for skin protein binding polypeptides are also provided.

Abstract: The current invention provides methods, as well as compositions useful in such methods, involving application of energy to a tissue of interest to generate a liquefied sample comprising tissue constituents so as to provide for rapid tissue sampling, as well as qualitative and/or quantitative detection of analytes that may be part of tissue constituents (e.g., several types of biomolecules, drugs, and microbes). Determination of tissue composition can be used in a variety of applications, including diagnosis or prognosis of local as well as systemic diseases, evaluating bioavailability of therapeutics in different tissues following drug administration, forensic detection of drugs-of-abuse, evaluating changes in the tissue microenvironment following exposure to a harmful agent, and various other applications.

Abstract: The present disclosure provides peptides and peptide compositions, which facilitate the delivery of an active agent or an active agent carrier wherein the compositions are capable of penetrating the stratum corneum (SC) and/or the cellular membranes of viable cells.

Abstract: The present disclosure provides peptides and peptide compositions, which facilitate the delivery of an active agent or an active agent carrier wherein the compositions are capable of penetrating the stratum corneum (SC) and/or the cellular membranes of viable cells.

Abstract: The present disclosure provides peptides and peptide compositions, which facilitate the delivery of an active agent or an active agent carrier wherein the compositions are capable of penetrating the stratum corneum (SC) and/or the cellular membranes of viable cells.

Abstract: The present disclosure provides peptides and peptide compositions, which facilitate the delivery of an active agent or an active agent carrier wherein the compositions are capable of penetrating the stratum corneum (SC) and/or the cellular membranes of viable cells.

Abstract: The present disclosure provides peptides and peptide compositions, which facilitate the delivery of an active agent or an active agent carrier wherein the compositions are capable of penetrating the stratum corneum (SC) and/or the cellular membranes of viable cells.

Abstract: The present disclosure provides peptides and peptide compositions, which facilitate the delivery of an active agent or an active agent carrier wherein the compositions are capable of penetrating the stratum corneum (SC) and/or the cellular membranes of viable cells.

Abstract: The present disclosure provides peptides and peptide compositions, which facilitate the delivery of an active agent or an active agent carrier wherein the compositions are capable of penetrating the stratum corneum (SC) and/or the cellular membranes of viable cells.

Abstract: The current invention provides methods, as well as compositions useful in such methods, involving application of energy to a tissue of interest to generate a liquefied sample comprising tissue constituents so as to provide for rapid tissue sampling, as well as qualitative and/or quantitative detection of analytes that may be part of tissue constituents (e.g., several types of biomolecules, drugs, and microbes). Determination of tissue composition can be used in a variety of applications, including diagnosis or prognosis of local as well as systemic diseases, evaluating bioavailability of therapeutics in different tissues following drug administration, forensic detection of drugs-of-abuse, evaluating changes in the tissue microenvironment following exposure to a harmful agent, and various other applications.