Organically-modified siloxanes were used as host materials to examine the influence of surface chemistry on protein conformation in a crowded environment. The sol-gel materials were prepared from tetramethoxysilane and a series of monosubstituted alkoxysilanes, RSi(OR')(3), featuring alkyl groups of increasing chain length in the R-position. Using circular dichroism spectroscopy in the far-UV r...

Herein, silicon quantum dot light-emitting diodes (SiQD LEDs) are investigated to explore the interplay between their electroluminescence (EL) blue shift and SiQD ligand length on surface. The is essential for LED fabrication ensure colloidal stability, but it also hinders efficient charge transport inside LED. Consequently, SiQDs functionalized via organolithium reagents with hexyl, octyl, dod...

In the title compound, C(40)H(44)O(3), the fluorene ring system is essentially planar, with a maximum deviation of 0.075 (3) Å, and forms dihedral angles of 70.62 (8) and 70.31 (8)° with the mean planes of the central benzene ring and the meth-oxy-phenyl ring, respectively. Both the hexyl side chains have different conformations, i.e. an anti-gauche-anti-gauche conformation with C-C-C-C torsion...

The chromatographic behavior of some basic and acidic drugs was studied on C18, Phenyl-Hexyl and Polar RP columns with methanol or acetonitrile as organic modifiers of aqueous mobile phases containing addition of diethylamine. Diethylamine plays a double function of silanol blocker reagent in analysis of basic drugs and ion-pair reagent in analysis of acidic drugs. Most symmetrical peaks and hi...

BACKGROUND Developing an efficient lipophilization reaction system for phenolic derivatives could enhance their applications in food processing. Low solubility of phenolic acids reduces the efficiency of phenolic derivatives in most benign enzyme solvents. The conversion of phenolic acids through esterification alters their solubility and enhances their use as food antioxidant additives as well...

In the title compound, C(17)H(26)ClNO(3), both cyclo-hexyl rings have chair conformations. In the crystal, mol-ecules are linked by weak inter-molecular C-H⋯O hydrogen bonds.