Saccharide modified silica particles by enzymatic grafting

✍ Scribed by Katja Loos; Volker von Braunmühl; Reimund Stadler; Katharina Landfester; Hans Wolfgang Spiess

• Book ID: 102942504
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 551 KB
• Volume: 18
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.1997.030181006

✦ Synopsis

Abstract

The surface of silica particles has been chemically modified with oligo‐ or poly‐(α,1←4)‐D‐glucopyranose (amylose) chains of various length by covalently attaching maltoheptaose derivatives to the solid support and enzymatic polymerization of glucose‐1‐phosphate with potato phosphorylase (E.C. 2.4.1.1) as catalyst. The characterization of the products by solid‐state NMR spectroscopy showed an interesting dependence of the linewidth with the grafting density of the glucan chains. The modified silica particles showed chiral discrimination in liquid chromatography.