On-Demand Session: Optical Tweezers: Advanced Applications in Biology and Materials Science

_{PRESENTATION HIGHLIGHTS:}

[00:01:25] Intro to Non-equilibrium processes with single and multiple trapped particles

[00:03:30] Particle trapping and the Brownian harmonic oscillator

[00:05:45] Optical tweezers 

[00:10:04] Trapping absorbing particles: Hot Brownian motion

[00:24:15] Trapping Janus droplets

[00:27:30] Hybrid optical-dielectrophoretic trap

[00:30:05] Acknowledgements

[00:30:20] Questions on optically trapped microparticles

_{LIVE DEMO:}

[00:00:20] Overview of the hardware and NanoTracker 2

[00:02:12] Experiment setup

[00:03:10] Bruker software interface

[00:03:32] Live demo begins

[00:04:40] Measuring of forces

[00:06:00] Turning the traps ON

[00:07:18] Force measurement using a single trap

[00:08:29] Trap calibration for force measurements

[00:09:56] Force spectroscopy mode

[00:13:20] Multiplexing control

_QUESTIONS:

[00:00:01] How many particles can the NanoTracker hold and manipulate simultaneously in individual optical traps?

[00:00:40] How do you select a particle for an optical trapping application? How to select the size and material? And can cells be trapped?

[00:03:00] Tell us something about future applications for this work?