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(online color at: www.biophotonics-journal.org) PAFFC with pulsed laser. (A) Typical fluorescence (top) and PA (bottom) signals from QD-CNT conjugates in the mouse circulation. (B) Clearance rate for QD-CNT conjugates. (C) Time-resolved detection of long-lasting fluorescence from QDs in the presence of short-lasting fluorescence from blood. Laser parameters: wavelength, 532 nm; pulse duration, 5 ns; fluence, 50 mJ/cm2.
