Spectral changes of bovine serum albumin (BSA) in the presence of dipicolinic acid (DPA) were studied with UV/Vis absorption and fluorescence spectroscopy. The change in UV/vis spectra of BSA in the presence of DPA indicated the protein weakly interacting with DPA. The DPA quenching to the fluorescence of BSA leads to the calculation of the BAS-DPA association constant K of 8.9 x 104 Lmol-1 at ...

The Pt(II) complex, PtCl(2)(DIP) (DIP = chelating dinitrogen ligand: 4,7-diphenyl-1,10-phenanthroline), was synthesized and characterized by elemental analysis (CHN) and (1)H NMR and UV-vis techniques. The binding of this complex to calf thymus DNA was investigated using various physicochemical methods such as spectrophotometric, circular dichroism, spectrofluorometric, melting temperature, and...

The combination of X-ray diffraction experiments with optical methods such as Raman, UV/Vis absorption and fluorescence spectroscopy greatly enhances and complements the specificity of the obtained information. The upgraded version of the in situ on-axis micro-spectrophotometer, MS2, at the macromolecular crystallography beamline X10SA of the Swiss Light Source is presented. The instrument newl...

Four new BODIPY derivatives with a potential tendency to aggregation have been synthesized and characterized by means of NMR techniques, mass spectrometry UV–Vis/fluorescence spectroscopies. The objective this study is determine which structural factors the molecules influence most notably cellular uptake, intracellular location fluorescence imaging abilities. behaviour compounds in organic sol...

Restoration and conservation procedures for historical musical instruments involve several issues, also connected with their frequent being played. One of the most delicate preservation is cleaning surfaces from soil dirt which have accumulated over years. In fact, when external particles reach surface, a fraction them can deposit on it. Moreover, contact player generate chemical-physical chang...

biocl microflowers were synthesized using bismuth nitrate pentahydrate and sodium chloride by microwave (mw) assisted synthesis method for 23 minutes at 180 w. scanning electron microscopy (sem) studies revealed a unique morphology of flower-like assemblies comprised of nanosheets. the x-ray diffraction (xrd) pattern showed that a highly pure and crystalline phase has been obtained. the energy ...

• Interaction between Br- and I-C4 squaraines with ctDNA was investigated. Br-C4 binds on the minor groove. Squaraines display great affinity toward DNA K A values order of 10 5 M −1 . could be employed as potential probes for ctDNA. Squaraine dyes are photosensitizers in photodynamic therapy (PDT) due to their ability release reactive oxygen species (ROS) cause damage. For this reason, evaluat...

UNLABELLED BACKGROUND The work aims at improving photocatalytic activity of titania under Vis light irradiation using modification by Sn ions and an original, simple synthesis method. Tin-doped titania catalysts were prepared by thermal hydrolysis of aqueous solutions of titanium peroxo-complexes in the presence of SnCl4 or SnCl2 using an original, proprietary "one pot" synthesis not employi...

Thermally conductive nanopapers fabricated from graphene and related materials are currently showing great potential in thermal management applications. However, contacts between plates represent the bottleneck for conductivity of prepared absence a high temperature step graphitization. In this work, problem ineffective is addressed by use bifunctional polyaromatic molecules designed to drive s...

A novel quaternary ammonium-based cationic gemini surfactant (S6) having 1,6 di-bromo hexane as a spacer, have been used and its interaction with insulin in aqueous solution (pH, 7.40) was investigated by several methods including fluorescence spectroscopy, UV-Vis spectroscopy, circular dichroism, dynamic light scattering, ζ-potential measurements, conductivity and transmission electron microsc...