Fig. 6From: Growth and elongation of axons through mechanical tension mediated by fluorescent-magnetic bifunctional Fe3O4·Rhodamine 6G@PDA superparticlesa Magnetic guidance outgrowth of PC12 cell neurites in directional orientation in the treatment group (FMSPs+, M+). The value of the orientation index (b) and neurite length (c) in the treatment group compared to the control groups. A total of 301, 238, 255 and 340 neurites were collected and measured in the four experimental groups, namely, the treatment group, FMSP control group, magnetic field control group and blank control group, respectively. The box plot shows the median (whiskers), interquartile ranges (boxes), and 5–95% percentiles (line). The square represents the mean value, and triangles represent the maximum and minimum. *P < 0.05Back to article page