Studying volumes of tears on the microscale (IMAGE)
Caption
Studying volumes of liquids on the microscale, such as tears and eye drops, requires new methods. The authors combined two commonly used methods and made adjustments to apply them to the microscale: dynamic light scattering (DLS) for studying liquids by shining light to scatter off the suspended particles, and rheological methods that measure the viscosity and stress tolerance of liquids by creating flow under different geometries such as plates or cones.
Credit
Juan F. Vega and Itxaso Calafel
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Original content