The generation of electrospun nanofibrous with controlled
size,
shape, and spatial orientation is crucial for the development of biomedical
and electronic devices. Aligned nanofibers are advantageous over random
nanofibers because control of the spatial orientation can improve
electrical and optical properties and play an important role in tissue
engineering applications, impacting the mechanical and biological
properties of the scaffold. Therefore, different machine learning
models have been developed to predict the optimal production of electrospun-aligned
poly(vinyl alcohol) nanofibers. The database was obtained by multiple
assays using the airgap electrospinning setup and varying the voltage,
the distance between the tip and collector, and polymer concentration.
Binary classification models were developed, which can predict the
production or not of aligned nanofibers. In addition, regression models
have been developed to predict the orientation, angle, and diameter
of the nanofibers when there is a production of nanofibers. A convolutional
neural network has also been developed. It was concluded that for
the binary classification, the artificial neural network performs
better predictions obtaining an accuracy equal to 0.94, and for the
validation set, an accuracy equal to 0.90 and an F1-score equal to
0.87 were obtained.