title: A sulfur-terminal Zn(II) complex and its two-photon microscopy biological imaging application.
abstract: A novel sulfur-terminal Zn(II) complex Zn(S)(2)L (L = N-hexyl-3-{2-[4-(2,2':6',2''-terpyridin-4'-yl)phenyl] ethenyl}carbazole) was obtained by a facile solvothermal process. The unique feature in this new reaction design is the use of ZnS nanocrystals as a precursor and bulky chromophoric L as an ancillary ligand. The versatility of the two terminal sulfur atoms is relevant to biological system. The resulting Zn(S)(2)L complex shows two-photon excited fluorescence (TPEF), which has been proven to be potentially useful for two-photon microscopy imaging in living cells. In addition, cytotoxicity tests showed that the low-micromolar concentrations of Zn(S)(2)L did not cause significant reduction in cell viability over a period of at least 24 h and should be safe for further biological studies.
authors.affiliation: Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, Hefei 230039, PR China.
authors.forename: Yuanhao
authors.initials: Y
authors.lastname: Gao
authors.forename: Jieying
authors.initials: J
authors.lastname: Wu
authors.forename: Yiming
authors.initials: Y
authors.lastname: Li
authors.forename: Pingping
authors.initials: P
authors.lastname: Sun
authors.forename: Hongping
authors.initials: H
authors.lastname: Zhou
authors.forename: Jiaxiang
authors.initials: J
authors.lastname: Yang
authors.forename: Shengyi
authors.initials: S
authors.lastname: Zhang
authors.forename: Baokang
authors.initials: B
authors.lastname: Jin
authors.forename: Yupeng
authors.initials: Y
authors.lastname: Tian