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.
Polarized optical images of PLLA films crystallized at various crystallization temperature (Tc) values. (a) Tc = 150 °C; normal spherulite surface (b) Tc = 145 °C; ring-banded spherulite (c) melt-quenched sample; amorphous surface. The scale bar represents 100 μm. Stereo microscope images of MC3T3-E1 cells cultured on PLLA surfaces; (d) normal spherulite surface; (e) ring-banded spherulite surface; (f) amorphous surface. The scale bar represents 100 μm [60].
