Resonator sensor array for synovial fluid characterization

We introduce a resonating viscosity-density sensor array measurement setup for the characterization of synovial fluid, the joint-lubricant in humans and animals, in an isolated and protective environment to prevent degradation of the fluid sample due to exposure to air. Our measurement technique requires very low sample volumes of 28 μl or less, and offers a more reliable alternative to capillary breakup tests already in use. The described method can be extended to characterize other biological and non-Newtonian fluids.