Core-shell particles for simultaneous three-dimensional imaging and tweezing in dense colloidal materials

Colloidal suspensions of microspheres have been used as idealized yet accurate physical models of complex phase behaviours for over a century. Moving beyond simple observations, researchers have begun to probe colloidal materials directly by manipulating individual particles using optical tweezers....

詳細記述

書誌詳細
主要な著者: Dullens, R, Liu, Y, Edmond, K, Curran, A, Bryant, C, Peng, B, Aarts, D, Sacanna, S
フォーマット: Journal article
出版事項: Wiley 2016
その他の書誌記述
要約:Colloidal suspensions of microspheres have been used as idealized yet accurate physical models of complex phase behaviours for over a century. Moving beyond simple observations, researchers have begun to probe colloidal materials directly by manipulating individual particles using optical tweezers. However, simultaneous optical manipulation and 3D visualisation of dense colloidal samples poses significant technical challenges due to their conflicting requirements: while 3D visualisation requires optical transparency, optical tweezing and manipulation requires a refractive index contrast between the ‘probe’ particles and solvent.