- Individually addressable patterned multilayer microchambers for site-specific release-on-demand.
Individually addressable patterned multilayer microchambers for site-specific release-on-demand.
Macromolecular rapid communications (2012-11-07)
Maxim V Kiryukhin, Sergey R Gorelik, Shu Mei Man, Gomathy Sandhya Subramanian, Maria N Antipina, Hong Yee Low, Gleb B Sukhorukov
PMID23129223
ABSTRACT
Patterned arrays of light-responsive microchambers are suggested as candidates for site-specific release of chemicals in small and precisely defined quantities on demand. A composite film is made of poly(allylammonium)-poly(styrene sulfonate) multilayers and gold nanoparticles incorporated between subsequent stacks of polyelectrolytes. The film shaped as microchambers is loaded with colloid particles or oil-soluble molecules. The microchambers are sealed onto a glass slide precoated with an adhesive poly(diallyldimethylammonium)-poly(styrene sulfonate) multilayer film. A focused laser beam is used for remote addressing the individual microchambers and site-specific release of the loaded cargo.
MATERIALS
Product Number
Brand
Product Description
Sigma-Aldrich
Poly(diallyldimethylammonium chloride) solution, average Mw 200,000-350,000 (medium molecular weight), 20 wt. % in H2O
Sigma-Aldrich
Poly(diallyldimethylammonium chloride) solution, average Mw 400,000-500,000 (high molecular weight), 20 wt. % in H2O
Sigma-Aldrich
Poly(diallyldimethylammonium chloride) solution, average Mw <100,000 (very low molecular weight), 35 wt. % in H2O