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.
Typical fluorescence microscopy images obtained after TUNEL staining of solid tumour from PDT-treated mice. At 24 h after PDT, the HepG2 solid tumours were excised from the mice and the histological sections were stained by the TUNEL reaction mixture. (a) PDT-treated; (b) treated but not irradiated; (c) untreated but irradiated and (d) untreated and not irradiated. Original magnification is × 40.
