Ion association equilibrium of tris (2,2'-bipyridine) ruthenium complex in electrosprayed solution droplets.
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چکیده
منابع مشابه
Protein surface recognition by dendritic ruthenium(II) tris(bipyridine) complexes.
We report protein surface binding of dendritic ruthenium(ii) tris(bipyiridine) complexes to alpha-chymotrypsin, resulting in a 1 : 1 and 1 : 2 protein complex formation as well as inhibition of the enzyme activity.
متن کاملSensitive fluorescence detection of lysozyme using a tris(bipyridine)ruthenium(II) complex containing multiple cyclodextrins.
A new series of photoactive metallocyclodextrins with increased fluorescence intensity upon binding with ssDNAs/aptamers has been demonstrated to sensitively and selectively detect lysozyme. The detection mechanism relies on the formation of an aptamer-lysozyme complex, which leads to reduction of fluorescence intensity.
متن کاملAnalysis of ion-association equilibrium of precipitable dipicrylaminate ion in aqueous solution by capillary zone electrophoresis.
The ion-association equilibrium of the dipicrylaminate ion (DPA(-)) was investigated in an aqueous solution with alkali metal ions and with its 18-crown-6 ether complexes as pairing cations by capillary zone electrophoresis (CZE). Although DPA(-) is precipitable with the pairing cations of K(+) and Cs(+) in a homogenous aqueous solution, a low concentration of DPA(-) below its solubility suppre...
متن کاملUltrafast Solvent Induced Charge Localization in Tris-[2,2'-Bipyridine] Ruthenium(II)
Two distinct excited state processes are resolved in tris-[2,2'-bipyridine] ruthenium(II). Time resolved anisotropy measurements reveal a solvent dependent depolarization indicative of charge localization. Transient absorption measurements resolve wavepacket motion on the excited state surface(s) independent of solvent. Tris-(2,2'-bipyridine)ruthenium (II) or [Ru(bpy)3] is the prototype to stud...
متن کاملA fluorescent chemosensor for copper(II) based on a carboxylic acid-functionalized tris(2,2'-bipyridine)-ruthenium(II) complex.
In this research, bis(2,2'-bipyridine)(4-methyl-2,2'-bipyridine-4'-carboxylic acid)ruthenium(II).2PF(6)- complex (1), was first used as a fluorescent chemosensor to recognize Cu(II) in EtOH/H(2)O (1:1, v/v) solution. The response of the sensor is based on the fluorescence quenching of complex 1 by binding with Cu(II). The analytical performance characteristics of the proposed Cu(II)-sensitive c...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1996
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.45.619