International journal of pharmaceutics, 294(1-2), 149-155 (2005-04-09)
Phloretin and 6-ketocholestanol are penetration enhancers for percutaneous delivery of certain topically applied drugs. In the present study some physicochemical experiments have been performed to elucidate the mechanism of action of phloretin and 6-ketocholestanol. The penetration enhancing effect of phloretin
Biochimica et biophysica acta, 1712(2), 128-136 (2005-06-01)
The dipole potential (Psi(d)) constitutes a large and functionally important part of the electrostatic potential of cell plasma membranes. However, its direct measurement is not possible. Herein, new 3-hydroxyflavone fluorescent probes were developed that respond strongly to Psi(d) changes by
International journal of pharmaceutics, 255(1-2), 109-116 (2003-04-04)
In this study, the effect of lipophilic counter-ions on the permeation of 5-aminolevulinic acid (ALA) in combination with skin impregnation by phloretin and 6-ketocholestanol was evaluated. Standard in vitro permeation experiments with porcine skin were performed analysing the ALA content
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 57(2), 329-336 (2004-03-17)
The aim of this study was to investigate membrane interactions of phloretin and 6-ketocholestanol using different methods. A previously reported colorimetric assay with phospholipid/polydiacetylene (PDA) vesicles was used to examine a possible interaction of phloretin and 6-ketocholestanol with this target.
Langmuir : the ACS journal of surfaces and colloids, 22(20), 8452-8457 (2006-09-20)
As a result of the interfacial chemical heterogenity, membrane-penetrating peptides will experience a dramatic variation in environmental polarity manifested via electrical interactions with the surface and dipole potential of membranes prone to modulate the membrane insertion and folding of different
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