Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A series of building unit cells for 3D printed implants. a: from left to right, cubic structure, diagonally orientated struts and modified truncated pyramid [61]; b: examples of five polyhedral units [62]; c: triply periodic minimal surfaces (TPMS) porous units, the bottom rows are resultant blocks or printed scaffolds [63], reprinted with permission.
