Synthesis of two biofriendly anionic surfactants (N-n-decanoyl-l-valine and N-n-decanoyl-l-leucine) and their mixed micellization with nonionic surfactant Mega-10 in Tris-buffer medium at pH 9
A systematic understanding of gelation self-assembly: solvophobically assisted supramolecular gelation via conformational reorientation across amide functionality on a hydrophobically modulated dipeptide based ambidextrous gelator, N-n-acyl-(<scp>l</scp>)Val-X(OBn), (X = 1,ω-amino acid)
作者:Saubhik Haldar、Koninika Karmakar
DOI:10.1039/c5ra10209j
日期:——
Gelator backbone conformational flexibility plays an important role in a supramolecular self-assembly which is synergistically assisted by solvophobic interaction leading to a gelation of three sets of hydrophobically modulated dipeptidic gelators.
New antimicrobial self-assembling short lipopeptides
作者:César Vicente-García、Ignacio Colomer
DOI:10.1039/d1ob01227d
日期:——
self-assemble into functional structures with applications in the areas of nanotechnology, catalysis or medicinal chemistry. Herein, we report a library of 21 short lipopeptides, together with their supramolecular characterization and antimicrobial activity against both Gram-negative (E. coli) and Gram-positive (S. aureus) strains. This study shows that simple lipoaminoacids self-assemble into micellar
important activation component for multiple types of prebiotics on early Earth. Synergistic symbiosis between N-acyl amino acid (NAA)-type membrane precursor and peptide can be realized via sodium trimetaphosphate (P3m) activation effect based on the different activation mechanisms, which plays a significant role in the emergence of functionalized protocells.
Pharmaceutical formulations for the oral delivery of peptide or protein drugs
申请人:Cyprumed GmbH
公开号:EP3006045A1
公开(公告)日:2016-04-13
The present invention relates to improved pharmaceutical formulations, uses and methods for the oral delivery of peptide or protein drugs with advantageously high bioavailability, safety and cost-effectiveness. In particular, the invention provides a peptide or protein drug having a molecular weight of equal to or less than about 50 kDa for use as a medicament, wherein said peptide or protein drug is to be administered orally in combination with a pharmaceutically acceptable copper salt/complex and/or a pharmaceutically acceptable zinc salt/complex, and with a pharmaceutically acceptable reducing agent. The invention also provides a pharmaceutical composition comprising: a peptide or protein drug having a molecular weight of equal to or less than about 50 kDa; a pharmaceutically acceptable copper salt/complex and/or a pharmaceutically acceptable zinc salt/complex; and a pharmaceutically acceptable reducing agent.
An object of the present invention is to provide a moisturizer that can sufficiently promote the production of moisturizing-related proteins and can achieve sufficient moisturizing effect. In other words, the present invention provides a moisturizer including an acyl neutral amino acid involving an acyl group having a carbon atom number of 2 to 18 or a salt thereof, and a cosmetic including the moisturizer. The moisturizer and the cosmetic of the present invention can promote the production of one or more moisturizing-related proteins selected from the group consisting of filaggrin, involucrin, transglutaminase 1, keratin 10, and loricrin.