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Tunable release of bi-analytes [NB (a) and R6G(b)] functionalized on the same nanomotor by the rotation speed. (c) Representative Raman spectra of NB and R6G every 1 min at each rotation speed. (d) The release rates of both analytes of NB and R6G monotonically increase with the rotation speed with a power-law dependence of 0.52 and 0.53, respectively.
