Nanoprobes

Highly stable two-photon oxygen imaging probe based on a ruthenium-complex encapsulated in a silica-coated nanomicelle

A nanomicelle-based ruthenium-complex oxygen imaging probe is coated with a silica shell. The biostability of the silica-coated probe is improved by a factor of 4, while the oxygen-sensitivity is reduced by a factor of 3.

Theoretical analysis of the signal-to-noise ratio of two-photon oxygen imaging probes

Signal-to-noise ratio performance of optical chemical sensors in the presence of phosphorescence saturation is described using Poisson statistics and Stern-Volmer kinetics. The described framework can be applied across a wide range of sensitivites …