Fig. 3From: Emerging era of microneedle array for pharmaceutical and biomedical applications: recent advances and toxicological perspectivesPharmaceutical and biomedical applications of MNs. a MNs for drug delivery to the brain. b MNs as a sensor. c Applicability of MNs through transdermal route. d MN drug delivery to nails. e MN drug delivery to the ear. f MNs for ocular delivery. g MNs for vaccine deliveryBack to article page