6533b86cfe1ef96bd12c8932

RESEARCH PRODUCT

Orientation, recognition, and photoreaction of nucleolipids in model membranes

Helmut RosemeyerMichael AhlersHelmut RingsdorfFrank Seela

subject

Polymers and PlasticsStereochemistrytechnology industry and agricultureSynthetic membraneNucleobaseDouble chainCrystallographychemistry.chemical_compoundColloid and Surface ChemistryMonomerMembranechemistrySolubilizationMonolayerAmphiphileMaterials ChemistryPhysical and Theoretical Chemistry

description

Amphiphiles with nucleobases and nucleosides as headgroups have been synthesized. Their surface behavior was investigated in monolayers at the air/water interface. The double chain nucleolipids form stable monolayers with nearly identical surface pressure-area diagrams, whereas the spreading behavior of the mono chain amphiphiles is dominated by the various nucleobase-headgroups. When measuring the interactions between nucleolipid monolayers and nucleobases (monomeric and polymeric ones), specific base-base effects could be observed: the complementary nucleobases solubilized in the subphase expand the monolayer more than the non-complementary ones. Photodimerization reactions of thymine-amphiphiles were investigated in mono- and multilayers as well as in spin-coated films.

https://doi.org/10.1007/bf01513191