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(a) Widths of the first jet at fixed delay time of 10 µs. (b) Velocities of the cell-free, cell-laden jet and the separated single-cell. (c) The diameter of the transferred hydrogel spots on the acceptor slide with the variation of the laser pulse energy. The jet velocity and the spot diameter are at minimum for the low energy of 1 µJ. At 3 and 4 µJ the transferred single cell separates from the first jet and shows a much higher velocity.
