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Opto-thermoelectric trapping of metal nanoparticles. (a) Components of the colloidal solution; (b) Schematic illustration of working principle of the tweezers; (c) CTAC-dependent trapping stiffness, (d) trapping potential and (e) trapping force of single 100 nm AgNSs. (f) In-situ dark-field optical spectroscopy of trapped single metal nanoparticles along with simulated spectra.45 Scale bars: 2 μm. Adapted with permission from ref 45. Copyright 2018 Springer Nature.
