Red blood cell (RBC)-like particles have shown great interest as a model for the understanding of the cell behavior and as promising biomaterials in targeted drug delivery. In this study, a simple and versatile route was proposed for the large-scale synthesis of monodisperse and well-defined RBC-like PS particles using divinylbenzene (DVB) as the cross-linker and ethanol as reaction medium. RBC-like particles were obtained due to the asymmetric shrinkage of a cross-linked network during the phase separation process. An ordered self-assembly monolayer with the concave facing up at the air−water interface was also demonstrated.

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