Figure 1From: Long-term exposure of CdTe quantum dots on PC12 cellular activity and the determination of optimum non-toxic concentrations for biological useAbsorption and emission spectra. UV-vis absorption and fluorescence emission spectra (λem 450 nm) of the differently sized (~2.5 nm - solid line & ~4.5 nm - dashed line) QDs synthesised and co-incubated with the PC12 cells.Back to article page