Selective Janus particle assembly at tipping points of thermally-switched wetting.
نویسندگان
چکیده
Thermal wetting can simply, selectively and reversibly join patchy particles into clusters (2D and 3D) and also colloidal crystals over the narrow temperature range of 1-2 °C. This is demonstrated with Janus particles (gold half-coated silica spheres) immersed in a binary mixture of water/2,6-lutidine, such that the relative strength of gold-gold bonding through hydrophobic interaction and silica-silica bonding through the wetting-induced attraction is reversibly switched according to temperature.
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ورودعنوان ژورنال:
- Angewandte Chemie
دوره 53 17 شماره
صفحات -
تاریخ انتشار 2014