One-pot synthesis of spheres-on-sphere silica particles from a single precursor for fast HPLC with low back pressure.

Ahmed, Adham; Ritchie, Harald; Myers, Peter; Zhang, Haifei · Adv Mater · 2012

basic_science · Level V

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Abstract

Spheres-on-sphere (SOS) silica particles are prepared in a one-pot scalable synthesis from mercaptopropyltrimethoxysilane with hydrophilic polymer and cationic surfactant under alkaline conditions. The SOS particles exhibit solid-core porous-shell properties. The fast separation of small molecules and proteins with low back pressure are demonstrated by high-performance liquid chromatography (HPLC) for the columns packed with SOS-particles.

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