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Functional Mesoporous Silica Nanoparticles for the Selective Sequestration of Free Fatty Acids from Microalgal Oil

TitleFunctional Mesoporous Silica Nanoparticles for the Selective Sequestration of Free Fatty Acids from Microalgal Oil
Publication TypeJournal Article
Year of Publication2012
AuthorsValenstein JS, Kandel K, Melcher F, Slowing II, Lin VSY, Trewyn BG
Journal TitleACS Applied Materials & Interfaces
Volume4
Pages1003-1009
Date Published02
Type of ArticleArticle
ISBN Number1944-8244
Accession NumberWOS:000300644500073
Keywordsadsorption, biodiesel production, bioenergy, botryococcus-braunii, delivery-system, fermentation, free fatty acids, GLUCOSE, mesoporous silica, microalgal, MORPHOLOGY, nanosphere, oil, responsive controlled-release, selective sequestration
Abstract

A series of 2d-hexagonally packed mesoporous silica nanoparticle Material with 10 nm pore diameter (MSN-10) covalently :functionalized with organic surface modifiers have been synthesized via a post-synthesis grafting method. The material structure has been characterized by powder X-ray diffraction, electron microscopy, and nitrogen sorption analyses, and the free fatty acid (FFA) sequestration capacity and selectivity was investigated and quantified by thermogravimetric and GC/MS analysis. We discovered that aminopropyl functionalized 10 nm pore mesoporous silica nanoparticle material (AP-MSN-10) sequestered all available FFAs and left nearly all other molecules in solution from a simulated microalgal extract containing FFAs, sterols, terpenes, and triacylglycerides. We also demonstrated selective FFA sequestration from commercially;available microalgal oil.
URL<Go to ISI>://WOS:000300644500073
DOI10.1021/am201647t
Alternate JournalACS Appl. Mater. Interfaces