In this paper, we report a simple strategy for fabricating hollow CaCO 3 microspheres. We employed poly(ethylene glycol) (PEG) and sodium dodecyl sulfate (SDS) in one system, as a template for the controlled growth of hollow CaCO 3 microspheres. It suggests that the PEG-SDS complex micelles play a key role in controlling the growth of biominerals. The variation of polymer molecular weight drastically changed the morphology and polymorph of the obtained CaCO 3. These results also present a facile route to biomimetic inorganic synthesis. [All rights reserved Elsevier].
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