Correction: Biofunctional Janus particles promote phagocytosis of tumor cells by macrophages.

[This corrects the article DOI: 10.1039/D0SC01146K.].

Biofunctional Janus particles promote phagocytosis of tumor cells by macrophages.

Herein, a versatile strategy for the construction of biofunctional Janus particles (JPs) through the combination of Pickering emulsion and copper-free click chemistry is developed for the study of particle-mediated cell-cell interactions. A variety of biomolecules including bovine serum albumin (BSA), ferritin, transferrin (Tf), and anti-signal regulatory protein alpha antibodies (aSIRPα), , can be incorporated into the Janus platform in a spatially defined manner. JPs consisting of Tf and aSIRPα (Tf-SPA1-aSIRPα JPs) demonstrate a significantly improved binding affinity to either macrophages or tumor cells compared to their uniformly modified counterparts.