Characterization and biomimetic study of a hydroxo-bridged dinuclear phenanthroline cupric complex encapsulated in mesoporous silica: Models for catechol oxidase

Article Abstract:

The synthesis and characterization of a hydroxo-bridged dinuclear phenanthroline cupric complex, [(phen)(sub 2)Cu-OH-Cu(phen)(sub 2)](ClO(sub 4)(sub 3) (HPC, phen = phenanthroline), dispersed in molecular sieves; MCM-41's and sodium zeolite Y. The study demonstrated that HPC encapsulated in the nanochannels of A1-MCM-41 mesoporous materials could be a viable system for a broad range of catalytic oxidation to mimic natural occurring enzymes.

Methods, Oxidation-reduction reaction, Oxidation-reduction reactions

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High surface-area silica with controlled pore size prepared from nanocomposite of silica and citric acid

Article Abstract:

A study is conducted on the pore formation process of silica gel from tetraethoxysilane in the presence of citric acid (CA). Results suggest that a bulky structure is retained after calcination without shrinkage, and a silica gel with high specific surface area and pore volume results and thus CA is considered to provide mesoporous silica as a template.

Citric Acid

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Biomaterial immobilization in nanoporous carbon molecular sieves: Influence of solution pH, pore volume, and pore diameter

Article Abstract:

A study on the adsorption of lysozyme (Lz) onto nanoporous carbon molecular sieves with various pore diameters is conducted at different solution pH values. It is concluded that nanoporous carbon has superior water stability and thus is a more appropriate adsorbent for biomaterials than nanoporous silica.

Lysozyme

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