One Scaffold, Many Possibilities – Copper(I)‐Catalyzed Azide–Alkyne Cycloadditions, Strain‐Promoted Azide–Alkyne Cycloadditions, and Maleimide–Thiol Coupling of Ruthenium(II) Polypyridyl Complexes
作者:Anne Stumper、Martin Lämmle、Alexander K. Mengele、Dieter Sorsche、Sven Rau
DOI:10.1002/ejic.201701126
日期:2018.2.7
applicability of RuII polypyridylcomplexes with appropriate functionalities as substrates for biorthogonal coupling reactions is investigated. In detail, copper(I)‐catalyzed azide–alkyne cycloadditions (CuAAC), strain‐promoted azide–alkyne cycloadditions (SPAAC), and maleimide–thiol coupling reactions of rutheniumcomplexes are examined. The first examples of SPAAC in which the organic azide is provided by
albumin nanoparticle (HSANP) coated with silica (HSA/SiO2), which consists of a core–satellite assembly of small silicananoparticles on a single HSANP. The HSA/SiO2 nanoparticles are used for delivering ruthenium polypyridyl complexes into cells. The silica coating increases the Ru loading efficiency, and prevents the burst release of Ru from HSA/SiO2. The Ru release rate can be controlled by adjusting
Mitochondria Targeted Protein-Ruthenium Photosensitizer for Efficient Photodynamic Applications
作者:Sabyasachi Chakrabortty、Bikram Keshari Agrawalla、Anne Stumper、Naidu M Vegi、Stephan Fischer、Christian Reichardt、Michael Kögler、Benjamin Dietzek、Michaela Feuring-Buske、Christian Buske、Sven Rau、Tanja Weil
DOI:10.1021/jacs.6b13399
日期:2017.2.15
Organelle-targeted photosensitization represents a promising approach in photodynamic therapy where the design of the active photosensitizer (PS) is very crucial. In this work, we developed a macromolecular PS with multiple copies of mitochondria-targeting groups and ruthenium complexes that displays highest phototoxicity toward several cancerous cell lines. In particular, enhanced anticancer activity
Eu(iii)-coupled graphene oxide as a luminescent material
作者:Galian Gou、Ren Ren、Shuwen Li、Shujing Guo、Zhengping Dong、Miao xie、Jiantai Ma
DOI:10.1039/c3nj00826f
日期:——
A graphene–inorganic hybrid material has been fabricated by coupling Eu(III) complexes onto graphene oxide (GO) (denoted as Eu-GO hereafter). Successful coupling has been verified by 1H NMR, CHN elemental analysis, inductively coupled plasma-atomic emission spectroscopy (ICP) for Eu3+ content, and Fourier transform infrared (FTIR) spectroscopy. UV-vis measurements of a dilute dispersion of Eu-GO in ethanol reveal the characteristic absorption of Eu(III) complexes, which gives further proof of the successful coupling. The composites display strong luminescence, more durable emission decay, enhanced photoluminescent stability, and improved thermal stability in comparison with the isolated complexes, due to interactions of the complexes with the GO.