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The stable stand-off trapping of single exosomes is demonstrated using a concentric nanohole array (CNA) within an opto-thermo-electrohydrodynamic tweezer. This tweezer utilizes laser illumination and an alternating current (AC) signal. A list of sentences constitutes the expected return value of this field. Single exosomes become ensnared within two electrohydrodynamic potential regions several microns removed from the laser focus, these zones being a byproduct of the CNA system's opera