4:30 PM - 4:45 PM
△ [19p-S322-11] Viscosity sensing by adjusting quartz crystal microbalance / a small liquid droplet interface
Keywords:Quartz crystal microbalance,Hydrophilic LbL film,VIscosity
We report the different attenuated shear vibrations of hydrophilic quartz crystal microbalance (QCM) by attached small viscous liquids and this technique enabled to measure the viscosity of various 5μl solutions. Covering entire area of QCM surface by a liquid was important for stable damping time measurement and accordingly we induced silica / polyelectrolyte hydrophilic coating on QCM with using Layer by Layer (LbL) self assembly method for enhanced wettability and saving viscous materials. We examined the relationship between damping time and viscosity of glycerol aqueous solutions. We also applied this technique for estimating blood coagulation behaviors.