Fig. 4From: Three-dimensional cell culture can be regulated by vibration: low-frequency vibration increases the size of olfactory ensheathing cell spheroidsSchematic diagram of the effect of various vibrational frequencies on spheroid formation within the NLM system. Higher frequency vibration leads to larger, but fewer, spheroids, due to the constant motion of the NLM, which allows for more cell-cell interactionsBack to article page