Figure 7
From: Simple and effective graphene laser processing for neuron patterning application
Development of the neural network.
Wide field transmission images of neurons at DIV 7. (a) No neural network development was found on bare glass/graphene substrates: the adhered cells appear dead. In (b) a widespread neural network on PDL coated glass/graphene substrates is shown. In (c), (d) and (e) neural networks oriented along line patterns. In (d) yellow markers indicate the width of graphene stripes, kept at 40 μm, black markers indicate the width of etched stripes, i.e., 30 μm and 60 μm in the pattern shown. In (e) the boundary region between graphene (upper left) and patterned graphene is shown. For the samples shown the fluency used during laser patterning was 0.8 J/cm2.
