Journal of chromatography. A, 1216(20), 4354-4360 (2009-04-03)
A simple and sensitive method for the determination of polar aromatic amines (PAAs) was developed using stir bar sorptive extraction (SBSE) coupling to high-performance liquid chromatography. A hydrophilic poly(vinylimidazole-divinylbenzene) (VIDB) monolithic material was prepared and acted as SBSE coating. The
The Journal of cell biology, 151(7), 1423-1434 (2001-01-03)
Apicomplexan parasites harbor a single nonphotosynthetic plastid, the apicoplast, which is essential for parasite survival. Exploiting Toxoplasma gondii as an accessible system for cell biological analysis and molecular genetic manipulation, we have studied how these parasites ensure that the plastid
The Biochemical journal, 197(1), 119-125 (1981-07-01)
Pre-resonance Raman spectroscopy was used to study the interactions of the nitro groups of dinitrophenyl haptens with three dinitrophenyl-binding antibody fragments: M315 Fv, M460 Fab' and X25 Fab'. The observed changes in frequency of modes associated with the nitro moieties
The interaction of M315 with 2,4-dinitrophenyl haptens was studied. 2,4-Dinitroaniline (DNP-NH2) showed maximum affinity to M315 at about pH 4. The pH dependence of the association constant of DNP-NH2 to M315 showed three transitions at pH 4.7, at pH 7.2
The synthesis and enzymatic characterization of DUPAAA, a novel fluorogenic substrate for RNases of the pancreatic type is described. It consists of the dinucleotide uridylyl-3',5'-deoxyadenosine to which a fluorophore, o-aminobenzoic acid, and a quencher, 2,4-dinitroaniline, have been attached by means
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