1. Amphiphilic cationic cyclodextrin nanovesicles: a versatile cue for guiding cell adhesion
- Author
-
Angela Scala, Annalaura Cordaro, Marianna Barbalinardo, Silvia Tortorella, Antonino Mazzaglia, Francesco Valle, and Fabio Biscarini
- Subjects
nanovesicles ,soft lithography ,Bioengineering ,Nanotechnology ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Soft lithography ,chemistry.chemical_compound ,neuroblastoma ,Amphiphile ,General Materials Science ,Fluorescein isothiocyanate, SC16NH2, soft lithography, neuroblastoma, HSY5Y cells ,Cell adhesion ,Fluorescein isothiocyanate ,SC16NH2 ,General Engineering ,Cationic polymerization ,cell adhesion ,General Chemistry ,021001 nanoscience & nanotechnology ,Atomic and Molecular Physics, and Optics ,Surface energy ,0104 chemical sciences ,cyclodextrin ,chemistry ,HSY5Y cells ,Surface modification ,Wetting ,0210 nano-technology - Abstract
It is well known that amphiphilic cationic beta-cyclodextrins (am beta CDs) form nanovesicles able to release their cargo in aqueous solution upon applying different stimuli. In addition they can be selectively positioned onto substrates by unconventional soft lithography. This makes them a powerful tool for designing environments where different cues can be externally supplied to the cells helping to achieve good control of their fate. Lithographically controlled wetting (LCW) of am beta CD nanovesicles loaded with fluorescein isothiocyanate (FITC), am beta CD/FITC, has been used here to fabricate geometrically functionalized surfaces, thus achieving multiscale control of the cell environment. The am beta CD functionalization was strongly influenced by the surface energy of the underlying substrates that, according to their hydrophobicity, orient the am beta CD in a different way, thus "offering" different portions to the cells. The structure of the pattern was characterized both over large scales exploiting the FITC fluorescence and at the nanoscale by atomic force microscopy. Cell guidance and aCD/FITC cell internalization were demonstrated in human neuroblastoma SHSY5Y cells.
- Published
- 2020