Self-Assembled, Sub-Micrometer Diameter Semipermeable Capsules

Abstract

Semipermeable nanoscopic hollow spheres or cages with diameters in the sub‐micrometer to the 100 nm range are accessible by the self‐assembly of polymers onto sub‐micrometer sized particles (Möhwald et al.) or by the formation of shell‐cross‐linked polymeric micelles (Wooley et al.) followed by chemical degradation of the underlying particle or micelle core (see scheme).