Quantification of release from microcapsules upon mechanical deformation with AFM

被引：61

作者：

Fernandes, Paulo A. L. ^{[1
]}

Delcea, Mihaela ^{[1
]}

Skirtach, Andre G. ^{[1
]}

Moehwald, Helmuth ^{[1
]}

Fery, Andreas ^{[2
]}

机构：

[1] Max Planck Inst Colloids & Interfaces, Dept Interfaces, D-14424 Potsdam, Germany

[2] Univ Bayreuth, D-95447 Bayreuth, Germany

来源：

SOFT MATTER | 2010年 / 6卷 / 09期

关键词：

POLYELECTROLYTE CAPSULES; NANOPARTICLES; MICROSCOPY;

D O I：

10.1039/c002564j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a novel method combining fluorescence microscopy with AFM force spectroscopy to investigate release of encapsulated materials from polyelectrolyte multilayer capsules upon mechanical deformations. The experimental approach allows independent measurement of release and plastic deformation thresholds. Our results reveal a well defined critical load upon which release takes place and let us correlate release with the onset of plastic deformations.

引用

页码：1879 / 1883

页数：5

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