A NANOLITER VISCOMETER FOR ANALYZING BLOOD PLASMA AND OTHER LIQUID SAMPLES

摘要

A microfabricated, a nonoliter capillary viscometer (10) includes a first channel (20) that is defined by a first channel-defining surface in a first substrate (12) and a second channel defining surface in a second substrate (14). The progress of liquid through this first channel (20) is monitored and used to determine viscosity. Viscosities in the range of 1 cP to 1000 cP are easily measured. Self-calibrating versions of the viscometer are also disclosed.