We have a new paper to appear in @ACSPhotonics from our lab at @IISERPune Great effort by @chandrahul08 @ChaudharyEksha & @pauldiptabrata We ask : How & why does directional rotation emerge in a optical trap of thermally active (smaller) + passive colloidal combinations? 1/n
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By combining light absorbing colloid (smaller one) with a normal colloid (bigger ones), we can observe directional rotation in a 2D optical trap. What determines the rotation direction is the relative position of the active colloid in the assembly. 2/n