Naslov
Surfactants - Control and Adjustment of Supramolecules

Autori
Filipović-Vinceković, Nada ; Bujan, Marija ; Dutour Sikirić, Maja ; Jendric, Martina ; Jurašin, Darija ; Tomašić, Vlasta ; Vinceković, Marko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Preparation and Properties of Functionalized Vesicles as Protocell Models / Noethig-Laslo, Vesna - Zagreb, 2005, 27-27

Skup
1. Working Group 0006/o3 Meeting, COST 27 Action

Mjesto i datum
Zagreb, Hrvatska, 20.05.2005. - 21.05.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
surfactants; supramolecules

Sažetak
Preparation of a surfactant supramolecule with desired size, shape and charge has been conducted in our group by (i) manipulation of a surfactant molecule structure and/or (ii) adjustment of conditions in aqueous solution. Former includes synthesis of a novel dissymmetric gemini surfactants. Spherical or wormlike micelles and vesicles have been prepared by variation of the flexible spacer length. Changes of condition in bulk phase have been performed by: (i) variation of surfactant concentration (size and shape transition), (ii) temperature changes (transformation of solid crystalline lamellar structures to vesicles), (iii) addition of electrolyte (manipulation with charge and concentration of counterions), (iv) addition of oppositely charged surfactants - catanionic surfactant mixtures (manipulation with total concentration and molar ratio of surfactants), (v) addition of biopolymers to oppositely charged surfactants (manipulation with total concentration and molar ratio of oppositely charged species). The characteristic of surfactant mixtures with oppositely charged components is spontaneous formation of vesicles, especially giant vesicles. Giant vesicles seem to have potential as cariers in drug delivery but still need more refinement to meet requirements for stability and retention times.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Prehrambena tehnologija

POVEZANOST RADA