2.5 Photothermal Effects of RCNs and DOX@RCNs
Temperature changes were recorded during continuous NIR irradiation
(808nm, 2.0w) to the solutions of RCNs at different concentrations (0,
25, 50, and 100μg/ml) for 600s. The temperature was recorded every 25s
using a thermal imaging camera. To test the photothermal stability of
the obtained RCNs, six cycles of heating and cooling for the solution
were recorded. The photothermal conversion efficiency (η) of the RCNs
solution was calculated according to the previous literature[26].
For the DOX@RCNs composites, temperature rise curve were firstly
recorded during NIR irradiation (808nm, 2.5w) to the solutions of RCNs
at 50μg/ml for 600s, then the temperature reduction curve was continued
without NIR irradiation for another 700s.