Abstract
We demonstrate the technique of multipoint viscosity measurements incorporating the accurate calibration of micron sized particles. We describe the use of a high-speed camera to measure the residual motion of particles trapped in holographic optical tweezers, enabling us to calculate the fluid viscosity at multiple points across the field-of-view of the microscope within a microfluidic system.
| Original language | English |
|---|---|
| Pages (from-to) | 2059-2062 |
| Number of pages | 4 |
| Journal | Lab on a Chip |
| Volume | 9 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2009 |
Keywords
- force microscopy
- local viscosity
- living cells
- microrheology
- position
- calibration
- detector
- systems
- flow