Figure 4.
Platelet activation by thrombin (100 U/mL). (a) Admittance spectrum set of TSM resonator during platelet activation (adding thrombin directly after T = 0) and corresponding resonance frequency shift curve. For clarity, admittance spectra were plotted every 5 min. (b) Resonance frequency shift curves of TSM resonators during platelet activation and phase-contrast photo of activated platelets. (Inset) Phase-contrast photo of activated platelets in 96-well plate taken after 2.5 h of platelet activation process. To see this figure in color, go online.