In the present study, a novel ratiometric SERS nanosensor via the assembly of 4-mercaptophenylboronic ester on the surface of gold nanorods has been developed and successfully applied in H2O2 imaging in living cells or cancer tissues.

Scheme 1. Schematic illustration of zinc deposition with and without HEDP additives.

In this communication, we proposed an azoreductase activatable, endonuclease-gated fluorescent nanodevice for spatiotemporal amplification imaging of microRNA-21 in hypoxic tumor cells.

No abstract