Key;
Laboratory;
of;
Crystal;
Materials,;
Shandong;
University,;
Jinan;
250100,;
China;
National;
Laboratory;
for;
Molecular;
Sciences;
(BNLM),;
Institute;
of;
Chemistry,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100190,;
China;
双光子激发荧光; DNA探针; 荧光成像; 咔唑; 核酸; 细胞; 荧光发射光谱; 盐;