Fig. 6. Examples of microfluidic devices used in cell biology studies.

(a) Microfluidic device generating multiple tensions in a single platform. (reproduced from [39] with permission). (b) Singe axon injury model generated in a microfluidic device. (reproduced from [40] with permission). (c) Multi channel shear stress generator. (reproduced from [41] with permission). (d) Stiffness gradient generator on a hydrogel (reproduced from [42] with permission). (e) Lung-on-a-chip device which mimics the physiology of alveolar-capillary interface of lung (reproduced from [44] with permission).