Synthesis, spectroscopic characterization, photochemical and photophysical properties and biological activities of ruthenium complexes with mono- and bi-dentate histamine ligand

2012 ◽  
Vol 41 (22) ◽  
pp. 6726 ◽  
Author(s):  
Carolina R. Cardoso ◽  
Inara de Aguiar ◽  
Mariana R. Camilo ◽  
Márcia V. S. Lima ◽  
Amando S. Ito ◽  
...  
Keyword(s):  
Biological Activities ◽  
Photophysical Properties ◽  
Ruthenium Complexes ◽  
Spectroscopic Characterization

ChemInform Abstract: Organotin Esters of N-Phthaloylamino Acids: Synthesis, Spectroscopic Characterization, and Biological Activities

ChemInform ◽  
2010 ◽  
Vol 30 (48) ◽  
pp. no-no
Author(s):  
Muhammad Ashfaq ◽  
Abdul Majeed ◽  
Abdul Rauf ◽  
Abdul Wahab Khan Khanzada ◽  
Wali Ullah Shah ◽  
...  
Keyword(s):  
Biological Activities ◽  
Spectroscopic Characterization

scholarly journals Novel silver(I) compounds with 1-adamantanamine

2018 ◽  
Vol 83 (6) ◽  
pp. 699-705 ◽  
Author(s):  
Dejan Jeremic ◽  
Milena Djordjevic ◽  
Srdjan Miletic ◽  
Ljubica Andjelkovic ◽  
Dusan Sladic ◽  
...  
Keyword(s):  
Electron Donor ◽  
Aliphatic Amine ◽  
Biological Activities ◽  
Spectroscopic Characterization ◽  
Antibacterial Activities ◽  
Monodentate Ligand ◽  
Donor Ligand ◽  
Minimum Inhibitory Concentrations ◽  
New Compounds

In this work, three novel silver(I) complexes with an almost completely rigid and bulky monodentate ligand, 1-adamantanamine, were synthesized. The aliphatic amine, 1-adamantanamine, is the sole electron donor ligand in these complexes. In addition to spectroscopic characterization, the basic biological activities of the new compounds were investigated and their minimum inhibitory concentrations were determined. The antifungal and antibacterial activities indicate that these compounds could potentially be applied as new therapeutics.

Binding Geometry and Photophysical Properties of DNA-Threading Binuclear Ruthenium Complexes

2007 ◽  
Vol 111 (1) ◽  
pp. 310-317 ◽  
Author(s):  
Fredrik Westerlund ◽  
Mattias P. Eng ◽  
Mikael U. Winters ◽  
Per Lincoln
Keyword(s):  
Photophysical Properties ◽  
Ruthenium Complexes ◽  
Dna Threading

scholarly journals Synthesis and Spectroscopic Characterization of Some New Axially Ligated Indium(III) Macrocyclic Complexes and Their Biological Activities

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Gauri D. Bajju ◽  
Altaf Ahmed ◽  
Deepmala Gupta ◽  
Ashu Kapahi ◽  
Gita Devi
Keyword(s):  
Biological Activities ◽  
Spectroscopic Characterization ◽  
Axial Ligand ◽  
Free Base ◽  
H Nmr ◽  
Pyramidal Geometry ◽  
The Stability ◽  
Square Pyramidal Geometry ◽  
C Nmr

The synthesis and spectroscopic characterization of new axially ligated indium(III) porphyrin complexes were reported. Chloroindium(III) porphyrin (TPPIn-Cl) was obtained in good yield by treating the corresponding free base with indium trichloride. The action of the different phenols on chloroderivatives (TPPIn-Cl) led to the corresponding phenolato complexes (TPPIn-X). These derivatives were characterized on the basis of mass spectrometry,1H-NMR, IR, and UV-visible data. The separation and isolation of these derivatives have been achieved through chromatography. The spectral properties of free base porphyrin and its corresponding metallated and axially ligated indium(III) porphyrin compounds were compared with each other. A detailed analysis of UV-Vis,1H-NMR, and IR suggested the transformation from free base porphyrin to indium(III) porphyrin. Besides,13C-NMR and fluorescence spectra were also reported and interpreted. The stability of these derivatives has also been studied through thermogravimetry. The complexes were also screened for anticancerous activities. Among all the complexes, 4-MePhO-InTPP shows highest anticancerous activity. The title complexe, TPPIn-X (where X = different phenolates), represents a five-coordinate indium(III) porphyrin complex in a square-pyramidal geometry with the phenolate anion as the axial ligand.

Fullerene Polypyridine Ligands: Synthesis, Ruthenium Complexes, and Electrochemical and Photophysical Properties

2006 ◽  
Vol 12 (16) ◽  
pp. 4241-4248 ◽  
Author(s):  
Zhiguo Zhou ◽  
Ginka H. Sarova ◽  
Sheng Zhang ◽  
Zhongping Ou ◽  
Fatma T. Tat ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Ruthenium Complexes ◽  
Polypyridine Ligands

Resonance Raman Spectra and Photophysical Properties of Ruthenium Complexes with the 3,3‘- Bipyridazine Ligand

2003 ◽  
Vol 107 (3) ◽  
pp. 351-357 ◽  
Author(s):  
Joseph S. Gardner ◽  
Dennis P. Strommen ◽  
Witold S. Szulbinski ◽  
Haiquan Su ◽  
James R. Kincaid
Keyword(s):  
Raman Spectra ◽  
Photophysical Properties ◽  
Resonance Raman ◽  
Ruthenium Complexes ◽  
Resonance Raman Spectra

scholarly journals Coumarin-Based Profluorescent and Fluorescent Substrates for Determining Xenobiotic-Metabolizing Enzyme Activities In Vitro

2020 ◽  
Vol 21 (13) ◽  
pp. 4708
Author(s):  
Hannu Raunio ◽  
Olli Pentikäinen ◽  
Risto O. Juvonen
Keyword(s):  
Enzyme Activities ◽  
Biological Activities ◽  
Photophysical Properties ◽  
Fluorescent Sensors ◽  
Enzyme Assays ◽  
Highly Sensitive ◽  
Metabolizing Enzyme ◽  
Transfer Properties

in vivo methods, such as spectrophotometric, fluorometric, mass spectrometric,and radioactivity-based techniques. In fluorescence-based assays, the reaction produces a fluorescentproduct from a nonfluorescent substrate or vice versa. Fluorescence-based enzyme assays areusually highly sensitive and specific, allowing measurements on small specimens of tissues withlow enzyme activities. Fluorescence assays are also amenable to miniaturization of the reactionmixtures and can thus be done in high throughput. 7-Hydroxycoumarin and its derivatives arewidely used as fluorophores due to their desirable photophysical properties. They possess a large -conjugated system with electron-rich and charge transfer properties. This conjugated structure leadsto applications of 7-hydroxycoumarins as fluorescent sensors for biological activities. We describe inthis review historical highlights and current use of coumarins and their derivatives in evaluatingactivities of the major types of xenobiotic-metabolizing enzyme systems. Traditionally, coumarinsubstrates have been used to measure oxidative activities of cytochrome P450 (CYP) enzymes. For thispurpose, profluorescent coumarins are very sensitive, but generally lack selectivity for individual CYPforms. With the aid of molecular modeling, we have recently described several new coumarin-basedsubstrates for measuring activities of CYP and conjugating enzymes with improved selectivity.

scholarly journals A ruthenium-oligonucleotide bioconjugated photosensitizing aptamer for cancer cell specific photodynamic therapy

2021 ◽  
Author(s):  
Luke McKenzie ◽  
Marie Flamme ◽  
Patrick Felder ◽  
Johannes Karges ◽  
Frédéric Bonhomme ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Cancer Cell ◽  
Photophysical Properties ◽  
Ruthenium Complexes ◽  
Relative Ease

Ruthenium complexes have emerged as a promising class of compounds for use as photosensitizers (PSs) in photodynamic therapy (PDT) due to their attractive photophysical properties and relative ease of chemical...

Photophysical Properties of Tetracationic Ruthenium Complexes and Their Ter-Ionic Assemblies with Chloride

2018 ◽  
Vol 57 (19) ◽  
pp. 12232-12244 ◽  
Author(s):  
Ludovic Troian-Gautier ◽  
Sara A. M. Wehlin ◽  
Gerald J. Meyer
Keyword(s):  
Photophysical Properties ◽  
Ruthenium Complexes
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