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.
SEM images of PLLA nanofibers and microspheres obtained from PLLA/dimethylformamide (DMF) solutions as a function of PLLA concentration: (A) 1 w/v%, (B) 3 w/v%, (C) 5 w/v% and (D) 7 w/v% (quenching time: 10 min; crystallization temperature: −10 °C; scale bar: 10 µm)—reproduced with permission from [65], Copyright Royal Sociaty of chemistry, 2015.
