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3D magnetic tweezer system. (a) Magnetic tweezer device, device stage, sample stage, and sample rotation stage with a glass capillary. The zoom-in view illustrates an E9.25 mouse embryo embedded in 1% agarose under examination in the sagittal view then rotated to be examined in the dorsal view. (b) Experimental set-up of the magnetic device mounted on a two-photon confocal microscope.
