Abstract：
:Compared to general fluorescent dyes, multi-photon fluorescent dyes exhibit deeper tissue penetration and lower auto-fluorescence in the bio-imaging field. Therefore, it is necessary to develop an efficient multiphoton imaging agent for deep tissue imaging. In this work, an organotin derivative (HSnBu3) has been designed and synthesized, which shows multiphoton absorption activity. In constrast to the ignorable three-photon activity of the ligand, the complex (HSnBu3) exhibits three-photon activity under NIR excitation (1500 nm). Results of chemical and biological tests confirmed that HSnBu3 was more easily activated by oxygen resulting in a higher level of 1O2, which could induce a decrease in mitochondrial membrane potential in HepG2 cells. It suggests that HSnBu3 has potential in photodynamic therapy.
journal_name
Spectrochim Acta A Mol Biomol Spectroscauthors
Cai C,Lv M,Xiang P,Fang C,Ma W,Tian X,Xu X,Tian Y,Zhang Qdoi
10.1016/j.saa.2021.119923keywords:
["Fluorescence imaging","Multi-photon","Organotin complex","ROS"]subject
Has Abstractpub_date
2021-11-05 00:00:00pages
119923eissn
1386-1425issn
1873-3557pii
S1386-1425(21)00500-Xjournal_volume
260pub_type
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