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.
Laser activation of carbon black creates membrane perforation. (A) Femtosecond laser pulses applied to cells incubated with foreign DNA/carbon black. (B) Laser activation generates small acoustic shock-waves which disrupt the cellular membrane and create holes. (C) DNA is now able to traverse the cell membrane.
