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    Preparation of hollow silica microspheres with controlled shell thickness in supercritical fluids

    This article presents a novel route to prepare hollow silica microspheres with well-defined wall thickness by using cross-linked polystyrene (PS) microspheres as templates with the assistance of supercritical ...

    Guannan Sun, Zhimin Chen, Shanshan Wang, Linmei Li in Colloid and Polymer Science (2011)