Figure 3From: Application of quantum dot nanoparticles for potential non-invasive bio-imaging of mammalian spermatozoaDetection of BRET-QD bioluminescence in spermatozoa. (A) Representative bioluminescence signals (photons/sec) of 0, 1 or 5 nM BRET-QD in spermatozoa (upper panel) and corresponding washing/supernatant media (bottom panel). (B) Bioluminescence signal quantification (mean ± s.d.) of 4 independent replicates.Back to article page