Article ID Journal Published Year Pages File Type
595965 Colloids and Surfaces A: Physicochemical and Engineering Aspects 2009 7 Pages PDF
Abstract

Polyelectrolyte multilayer film capsules with different micrometer sizes were assembled for pH and salt sensing devices. Encapsulation of labelled poly(acrylic acid) (PAAAF) in CaCO3 particles increases their potential usage in the biological environment. Microcapsules were analyzed with flowcytometry to obtain individual response of a spherical-like microsensor that behaves as Donnan system. The linear pH response of microparticles and microcapsules is quite broad and is useful in physiological range. The salt response is up to 0.1 M and was also predicted with simple mathematical model.

Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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