Cavitation Rheology Instrument
 
The Cavitation Rheology Instrument is custom built by the Crosby group to measure the critical pressure of hydrogels. The device is composed of a pump, a camera, and a syringe. The syringe is moved into the hydrogel, it is accurate to hundreds of microns, and a bubble of air or solvent forms. When the pump reaches the hydrogel's critical pressure, the bubble suddenly expands to a very large size (see the videos section of the research page). It can be used in both homogeneous and gradient gel. |
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