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Photothermal response of EGDE3,3′-PSS-CTAB-GNRs in serum-free media. Different concentrations (as determined by their optical densities) of nanorods were irradiated with continuous wavelength (CW) laser at 770nm (20 W/cm2) for a maximum of fifteen minutes. The temperature of the dispersion was monitored using a K-thermocouple. The steady-state temperatures showed an increase of approximately10oC with a doubling of nanorod concentration indicating Arrhenius-like behavior.
