S21-359 3D printed lattice microneedle for therapeutic, drug and vaccine delivery and liquid sampling, including interstitial fluids Background: Researchers at Stanford have discovered a method to create lattice microneedle structures using high resolution continuous liquid interface printing (CLIP) technology. Joseph DeSimone Brian Lee Gunilla Jacobson Audrey Shih Maria Dulay Shaomin Tian Jillian Perry Netra Rajesh Kai-wen Hsiao Madison Driskill