Tumor Microenvironment-Triggered Aggregation of Antiphagocytosis 99m Tc-Labeled Fe3 O4 Nanoprobes for Enhanced Tumor Imaging In Vivo.

Tumor Microenvironment-Triggered Aggregation of Antiphagocytosis 99m Tc-Labeled Fe3 O4 Nanoprobes for Enhanced Tumor Imaging In Vivo.