Additional file 2: Figure S2.

(a, b) Photoluminescence spectra of DHLA-CdSe-ZnS (QD564) before (a) and after (b) conjugation to (His6) Cyclin E. (c, d ) Results of quantum yield measurements of DHLA-CdSe-ZnS (QD564) before (c) and after (d) conjugation to (His6)Cyclin E represented by excitation scatter spectra (upper panel) and the corresponding PL spectra (lower panel) of the samples. The excitation scatter spectra show the actual spectral content of the excitation source (Xenon lamp) scattered by the integrating sphere.

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