Table 6 Formative manufacturing of microneedles
From: A Review of Nano/Micro/Milli Needles Fabrications for Biomedical Engineering
Methods | Fabrication illustrations | SEM images | Materials | Advantages | Typical limitations | Typical applications |
|---|---|---|---|---|---|---|
Micro casting |
| Solid microneedles
| Polymer, Hydrogel | High efficiency, low cost, easy operation, fit for mass production | High resolution mold, low flexibility, multiple steps | Bio-electrode, transdermal drug delivery, triboelectric nanogenerator |
Micro injection molding |
| Porous microneedles
| Titanium, Stainless steel 316L, Aluminum | Fit for porous microneedle, controllable porosity | Low efficiency, low flexible, multiple steps | Transdermal drug delivery, bio-sensing |
