Four related mixed-ligand nickel(ii) complexes: effect of steric encumbrance on the structure, DNA/BSA binding, DNA cleavage and cytotoxicity

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 30768-30779 ◽  
Author(s):  
Chun-Yan Gao ◽  
Zhong-Ying Ma ◽  
Yong-Po Zhang ◽  
Si-Tong Li ◽  
Wen Gu ◽  
...  

Four new interrelated mixed-ligand nickel(ii) complexes have been synthesized and characterized. The activities of DNA binding/cleavage, BSA binding with complexes and the vitro cytotoxicity also have been explored.

2021 ◽  
Author(s):  
Sangeetha Somasundaram ◽  
Tamilarasan Ajaykamal ◽  
Murali Mariappan

The mixed ligand copper(II) complexes [Cu(terpy)(mq)]ClO4 (1) and [Cu(phen)(mq)]ClO4 (2), where terpy = 2,2’:6’,2’’-terpyridine, phen = 1,10-phenanthroline and H(mq) = 2-methyl-8-hydroxyquinoline have been synthesised. The crystal structure of 1 discloses...


2014 ◽  
Vol 140 ◽  
pp. 255-268 ◽  
Author(s):  
Chandrasekaran Rajarajeswari ◽  
Mani Ganeshpandian ◽  
Mallayan Palaniandavar ◽  
Anvarbatcha Riyasdeen ◽  
Mohammad Abdulkadher Akbarsha

2013 ◽  
Vol 42 (28) ◽  
pp. 10244 ◽  
Author(s):  
Marta González-Álvarez ◽  
Alejandro Pascual-Álvarez ◽  
Lucas del Castillo Agudo ◽  
Alfonso Castiñeiras ◽  
Malva Liu-González ◽  
...  

2016 ◽  
Vol 45 (22) ◽  
pp. 9073-9087 ◽  
Author(s):  
Wen-Jing Lian ◽  
Xin-Tian Wang ◽  
Cheng-Zhi Xie ◽  
He Tian ◽  
Xue-Qing Song ◽  
...  

Four novel mixed-ligand copper(ii) Schiff base complexes were synthesized and characterized. The biological features of the complexes and how acetic auxiliary ligands manipulate these features were investigated.


2015 ◽  
Vol 44 (22) ◽  
pp. 10210-10227 ◽  
Author(s):  
Rangasamy Loganathan ◽  
Sethu Ramakrishnan ◽  
Mani Ganeshpandian ◽  
Nattamai S. P. Bhuvanesh ◽  
Mallayan Palaniandavar ◽  
...  

Mixed ligand 5,6-dmp and 3,4,7,8-tmp complexes display more prominent cytotoxicity and higher apoptotic inducing ability.


2013 ◽  
Vol 66 (11) ◽  
pp. 1406 ◽  
Author(s):  
Xiaojun He ◽  
Guang Yang ◽  
Xiaonan Sun ◽  
Lingjun Xie ◽  
Lifeng Tan

Two mixed-ligand ruthenium(ii) complexes [Ru(phen)2(cptcp)]2+ (Ru1; phen = 1,10-phenanthroline, cptcp = 2-(4-carbazol-9-yl-phenyl)-1H-1,3,7,8-tetraaza-cyclopenta-[l]-phenanthrene) and [Ru(phen)2(btcpc)]2+ (Ru2; btcpc = 9-butyl-6-(1H-1,3,7,8-tetraaza-cyclo-cyclopenta-[l]-phenanthren-2-yl)-9H-carbazole-3-carbaldehyde) have been synthesised and characterised. The DNA-binding behaviours of the two complexes have been investigated by using spectroscopic and viscosity measurements. Results suggest that the two complexes bind to DNA by intercalation. The photocleavage of plasmid pBR322 DNA indicates that Ru1 exhibits more effective DNA cleavage activity in comparison to that exhibited by Ru2 under the same conditions, and different cleavage mechanisms are determined. Topoisomerase inhibition and DNA strand passage assay confirm that Ru1 may act as an efficient dual inhibitor of topoisomerases I and II, whereas Ru2 may only act as a single inhibitor of topoisomerases II.


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