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. 2022 Jan 20;13:418. doi: 10.1038/s41467-021-27932-y

Fig. 1. Chemical structure of bioactivated in vivo assembly (BIVA) probe.

Fig. 1

The long-term circulation property of BIVA probe offered more opportunity for active targeting. Then, the enzyme (FAP-α) on the surface of tumor cell specifically tailored the probe and induced in situ nano-assemblies. The β-sheet assemblies exhibited a site-specific location around the tumor cell and a prolonged accumulation for better pancreatic tumor intraoperative navigation.