In practice, laser tweezers require relatively steep gradients to ensure that the gradient force exceeds the scattering force.
The bowls must be changed frequently, using tweezers to avoid contact with the cricket.
The tweezers array is dynamically configurable and can be used to make different shapes just by using software to define a new pattern.
Optical tweezers above, except that the linkage chemistry is different.
The ability to rapidly increase or suddenly switch off the load gives the tweezers perhaps the best time-dependent control of forces applied to single molecules.
Seeds that had not germinated were pinched with tweezers and considered viable if the embryos were still firm.
A medical practitioner removed the ticks with tweezers, avoiding damaging the acarids.
The gelatinous vitreous was removed from the posterior segment, using a pair of tweezers.
