Shape‐Shifting Patchy Particles. (12th April 2017)

• Record Type: Journal Article
• Authors: Zheng, Xiaolong; Liu, Mingzhu; He, Mingxin; Pine, David J.; Weck, Marcus
• Is Part Of: Angewandte Chemie. Volume 129:Number 20(2017)
• Page Start: 5599
• Page End: 5603
• Publication Date: 2017-04-12
• Subjects: Formverändernde Partikel -- Ortsspezifische Funktionalisierung -- Patchy Particles -- Selbstorganisation; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201701456
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: A facile method to synthesize shape‐shifting patchy particles on the colloidal scale is described. The design is based on the solvent‐induced shifting of the patch shape between concave and convex features. The initial concave patchy particles were synthesized in a water suspension by a swelling‐induced buckling process. Upon exposure to different solvents, the patches were tuned reversibly to be either concave or convex. These particles can be assembled into chained, branched, zigzag, and cyclic colloidal superstructures in a highly site‐specific manner by surface–liquid capillary bridging. The biphasic nature of the particles also enables site‐selective surface functionalization.