Improvement in Tracing Quantum Dot-Conjugated Nanospheres for In Vivo Imaging by Eliminating Food Autofluorescence

Figure 5

A mouse switched from regular mouse food to a purified diet (D10001a) was imaged daily to record the reduction of autofluorescence from the abdominal region. Black signals represent the autofluorescence in the range of 800 nm in wavelength. After 3 days’ feeding, intense autofluorescence in the abdominal region has disappeared and light autofluorescence was shown uniformly over the whole body (excitation filter: 720 nm, emission filter: 790 nm).

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