Abstract:
:Two new Ru(II) complexes, [Ru(Htip)3]Cl2 (1) and [Ru(Htip)2(dppz)]Cl2 (2), were synthesised and were characterised. The ground- and excited-state acid-base properties of 1 and 2 were studied and demonstrated that 1 acted as a pH-induced "on-off-on" luminescence switch. The binding behaviours of 1 and 2 to calf thymus DNA were studied with absorption and emission spectroscopy, DNA viscosities and density functional theory calculations. 2 was found to act as a DNA molecular light switch and as an efficient photocleaver of pUC 18 DNA. The cytotoxicities of the complexes were evaluated with the MTT method and it was found that 1 displayed apparent anticancer activity against MCF-7 cell, whereas 2 exhibited more potent and wider-spectrum antitumor activities against all cancer cell lines tested.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Zhao XL,Li ZS,Zhang AG,Liu P,Song XM,Wang KZdoi
10.1016/j.ejmech.2014.09.041subject
Has Abstractpub_date
2014-11-24 00:00:00pages
10-22eissn
0223-5234issn
1768-3254pii
S0223-5234(14)00859-9journal_volume
87pub_type
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