Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/ijms23020779
Keywords
pillar[5]arene; self-assembly; solid lipid nanoparticles; surfactant
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Novel monosubstituted pillar[5]arenes containing both amide and carboxyl functional groups were synthesized, and solid lipid nanoparticles based on these macrocycles were successfully obtained. By adjusting the macrocycle/surfactant ratio, the surface charge of the particles can be controlled, leading to the development of materials that selectively interact with different types of substrates.
Novel monosubstituted pillar[5]arenes containing both amide and carboxyl functional groups were synthesized. Solid lipid nanoparticles based on the synthesized macrocycles were obtained. Formation of spherical particles with an average hydrodynamic diameter of 250 nm was shown for pillar[5]arenes containing N-(amidoalkyl)amide fragments regardless of their concentration. It was established that pillar[5]arene containing N-alkylamide fragments can form spherical particles with two different sizes (88 and 223 nm) depending on its concentration. Mixed solid lipid nanoparticles based on monosubstituted pillar[5]arenes and surfactant (dodecyltrimethylammonium chloride) were obtained for the first time. The surfactant made it possible to level the effect of the macrocycle concentration. It was found that various types of aggregates are formed depending on the macrocycle/surfactant ratio. Changing the macrocycle/surfactant ratio allows to control the charge of the particles surface. This controlled property will lead to the creation of molecular-scale porous materials that selectively interact with various types of substrates, including biopolymers.
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