Effect of Benzocaine and Propranolol on phospholipid-based bilayers

Mangiapia, Gaetano; Gvaramia, Manuchar; Frielinghaus, Henrich; Teixeira, Jose; Kuhrts, Lucas; Koutsioumpas, Alexandros; Soltwedel, Olaf

doi:10.1039/C7CP06077G

Journal Article

FZJ-2017-07353

Effect of Benzocaine and Propranolol on phospholipid-based bilayers

Mangiapia, G. (Corresponding author)FZJ* ; Gvaramia, M.FZJ* ; Kuhrts, L. ; Teixeira, J. ; Soltwedel, O. ; Frielinghaus, H.FZJ* ; Koutsioumpas, A.FZJ*

2017
RSC Publ. Cambridge

Physical chemistry, chemical physics 19(47), 32057-32071 (2017) [10.1039/C7CP06077G]

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Please use a persistent id in citations: http://hdl.handle.net/2128/16407 doi:10.1039/C7CP06077G

Abstract: Cell membranes play a fundamental role in protecting the cell from its surroundings, in addition to host many proteins with fundamental biological tasks. A study of drug/lipid interactions is a necessary and important step to fully clarify the role and action mechanism of active ingredients, as well as to shed light on possible complications caused by drug overdosage. In this paper, the influence of Benzocaine and Propranolol drugs on the structure of L-α-phosphatidylcholines-based membranes has been investigated by means of neutron reflectivity, grazing incidence small angle neutron scattering, and small/ultrasmall angle neutron scattering. Investigations allowed discovering a stiffening of the membranes as well as the formation of stalks, caused by the presence of Benzocaine. On the other hand, disordered bilayers (lamellar powders) and highly curved structures were found in the presence of Propranolol. The found results may be rationalized in terms of the molecular structure of drugs and may serve as starting point for explaining the toxic behavior in long-term and overdosage scenarios.

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Soft Condensed Matter (2nd)

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