VITRIFICATION OF SILICA GEL

Synthesis of oligodeoxyribonucleotides on silica gel support.

A rapid solid phase method of oligonucleotide synthesis based on monomeric protected nucleosides has been developed.

Absorption of isoflurane by silica gel.

We have studied the capacity of the drying agent silica gel (SG) to absorb isoflurane from gas samples. When dry, SG was able to absorb 31 times its own volume of isoflurane vapour, which could be recovered almost completely from the SG by displacement with water vapour. However, we were unable to demonstrate any significant absorption of isoflurane by wet SG. Care must be taken, therefore, whe...

Carbon–silica sol-gel derived nanomaterials

The preparation of sol-gel derived silica-based nanomaterials containing electrical conductive carbon fillers in an extensive composition range is described and their electrical properties are presented. Nanomaterials of carbon filler concentrations up to 60% (v/v) were obtained by dip coating or screen-printing from precursors of hydrolysed alkoxysilanes. Nanostructured morphology could be ide...

Chromatography of Lipids on Commercial Silica Gel Loaded Filter Paper.

Separation of lipids by Silica Gel G column chromatography.

A column chromatographic procedure utilizing Silica Gel C is described for separating lipid components of serum and lipoproteins into individual fractions containing hydrocarbons (I), cholesterol esters (II), triglycerides (111), cholesterol (IV) , free fatty acids (V) , and phospholipids (VI). Silica Gel G required no pretreatment except adjustment of moisture content to 10%. The method afford...