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. 2019 Jan 2;19(1):123. doi: 10.3390/s19010123

Figure 7.

Figure 7

Figure 7

Real-time sensor response of a soot coated 5 MHz QCM to (a,b) immotile and (c,d) progressively motile human spermatozoa with gradually increasing concentration. All graphs reflect actual biomass effects after equilibration of the baselines in Global medium.