Schematic of measuring Tglobal using a thermocouple and Tlocal using the temperature-dependent •OH generation rate or the linewidth change of 15N-PDT. (IMAGE)

Tsinghua University Press

Schematic of measuring Tglobal using a thermocouple and Tlocal using the temperature-dependent •OH generation rate or the linewidth change of 15N-PDT.

Caption

Two methods based on the electron spin resonance (ESR) technique were developed to characterize the average local temperature (Tlocal) around the excited gold nanorods: (1) temperature-dependent •OH generation from thermal decomposition of H2O2, and (2) 15N-PDT linewidth change from collisions with paramagnetic molecular O2. The Tlocal obtained was 20-30℃ higher than the global temperature (Tglobal) of the irradiated suspension measured using a thermocouple.

Credit

Nano Research, Tsinghua University Press

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