Fig. 3: Lifetime-based sensing capability of 3D printed luminescent stent.
From: Infrared emitting lanthanide doped nanoparticles provide sensing capabilities to coronary implants

a Schematic drawing of the experimental procedure used to evaluate the lifetime-based sensing capability of our fluorescent stents. Luminescence decay curves of the fluorescent stent obtained under 800 nm optical excitation at different temperatures, in absence (b) and presence (d) of tissue, fluorescence was recorded at 980 nm, and the tissue thickness was set to 0.5 cm. The temperature dependence of the average lifetime obtained in the absence (c) and presence (e) of tissue, the data were derived from fitting the curves shown in (b) and (d) to Eq. (2) in the main text. Fluorescence decay measurements were each performed in triplicate (n = 3).