1. A Highly Photoreflective and Heat-Insulating Alumina Film Composed of Stacked Mesoporous Layers in Hierarchical Structure.

    Advanced Materials (FRG) 27(39):5901 (2015) PMID 26306551

    An alumina film with highly photoreflective and heat-insulating properties can be simply synthesized using a sol of fibrous boehmite with an additive. The entangled fibers bring about mesopores among them and form stacked 2D nonwoven-like nanosheets. The porosity and the layered structure of alu...
  2. Deactivation of ZSM-5 zeolite during catalytic steam cracking ofn-hexane

    Fuel Processing Technology 126:343 (2014)

    H-ZSM-5 catalyst was initially active for the steam cracking of n-hexane to produce propylene and ethylene; however, the H-ZSM-5 catalyst deactivated. Understanding the deactivation reason of the ZSM-5 catalyst during the catalytic steam cracking is essential to develop the durable cat...
  3. Electrochemical enzymatic biosensor with long-term stability using hybrid mesoporous membrane.

    Analyst (Cambridge UK) 139(18):4654 (2014) PMID 25050480

    An acetylcholinesterase-immobilized sensor unit was successfully prepared by encapsulating the enzyme within hybrid mesoporous silica membranes (F127-MST). Through a novel combination with tetracyanoquinodimethane, both acetylcholine and organophosphorus pesticides were successfully detected wit...
  4. Preparation of plate-like mesoporous material from layered silicate RUB-15.

    Journal of Nanoscience and Nanotechnology 13(4):2864 (2013) PMID 23763172

    A plate-like mesoporous material was formed from the lamellar structure of layered silicate RUB-15. RUB-15 was synthesized by a hydrothermal method, as reported previously. TMA (tetramethylammonium) ions exist in the interlayer of RUB-15 were exchanged with C16 TMA (hexadecyl-trimethyl-ammonium)...
  5. Production ofl-theanine using glutaminase encapsulated in carbon-coated mesoporous silica with high pH stability

    Biochemical Engineering Journal 68:207 (2012)

    Graphical abstract
  6. An enzyme-encapsulated microreactor for efficient theanine synthesis.

    Chemical Communications 48(56):7058 (2012) PMID 22674037

    A flow-type microreactor containing glutaminase-mesoporous silica composites with 10.6 nm pore diameter (TMPS10.6) was developed for the continuous synthesis of theanine, a unique amino acid. High enzymatic activity was exhibited by the local control of the reaction temperature.
  7. Preparation of mesoporous silicas using food grade emulsifiers and its application for enzyme supports

    Journal of Non-Crystalline Solids 358(14):1673 (2012)

    A novel mesoporous silica (TMPS) was synthesized via self-assembly using a myristic acid ester of pentaglycerol. The ester is obtained from catalytic esterification and it is commercially available as a food grade emulsifier. TMPS material was employed for preparation of a biocatalyst ...
  8. Immobilization of enzyme-encapsulated nanoporous material in a microreactor and reaction analysis

    Chemical Engineering Journal 167(2-3):744 (2011)

    A microreactor containing lipase–nanoporous material composites was developed and employed in the hydrolysis reaction of a triglyceride. Lipase used as a model enzyme was encapsulated in two types of folded-sheet mesoporous silicas, FSM4 and FSM7, with pore diameters of approximately 4...
  9. Heterogeneous nucleation of protein crystals on fluorinated layered silicate.

    PLoS ONE 6(7):e22582 (2011) PMID 21818343 PMCID PMC3144907

    Here, we describe an improved system for protein crystallization based on heterogeneous nucleation using fluorinated layered silicate. In addition, we also investigated the mechanism of nucleation on the silicate surface. Crystallization of lysozyme using silicates with different chemical compos...
  10. Improvement of aldehyde tolerance and sequential aldol condensation activity of deoxyriboaldolase via immobilization on interparticle pore type mesoporous silica

    Journal of Molecular Catalysis B: Enzymatic 68(2):181 (2011)

    Graphical abstract
  11. An investigation of thermal stability of thin palladium–silver alloy membranes for high temperature hydrogen separation

    Journal of Membrane Science 366(1):212 (2011)

    Graphical abstract
  12. Amperometric detection of phenolic compounds with enzyme immobilized in mesoporous silica prepared by electrophoretic deposition

    Sensors and Actuators B: Chemical 153(2):361 (2011)

    Laccase was immobilized in mesoporous silica powder with a 7.0 nm pore diameter (FSM7.0) coated onto a glassy carbon electrode using an electrophoretic deposition technique, and the electrode was then applied to the amperometric detection of catechol, which is a typical phenolic compo...
  13. Synthesis of l-theanine using enzyme/mesoporous silica conjugates under high pH conditions

    Materials Letters 65(1):67 (2011)

    We present a new enzymatic process for synthesis of l-theanine using glutaminase combined with immobilization technique on a mesoporous silica (MPS). The MPS was firstly attempted to modify with zirconia in order to enhance the durability against the reaction under high pH conditions. The g...
  14. Increasing particle size of a synthetic smectite for polymer nanocomposites using a supercritical hydrothermal treatment.

    Journal of Colloid and Interface Science 348(2):313 (2010) PMID 20501339

    We have studied the effect of a supercritical hydrothermal process on the structural and surface morphological properties of synthetic smectite clay, stevensite (ST), in terms of the particle size, in order to enhance the functionality of the synthetic smectites as an inorganic filler for transp...
  15. Detection of hetero-proteins-mesoporous silica assembly by BRET.

    Chemical Communications 46(17):2941 (2010) PMID 20386830

    The assembly of a hetero-protein (Renilla reniformis luciferase (Rluc) and a green fluorescence protein (sGFP)) encapsulated in folded-sheet mesoporous material with 7.1 nm pore diameter (FSM7.1), which was used for studying protein-protein interactions in pores of mesoporous silica, has been co...
  16. Synthesis and structure analysis of RUB-50, an LEV-type aluminosilicate zeolite

    Microporous and Mesoporous Materials 128(1-3):150 (2010)

    An LEV-type aluminosilicate zeolite RUB-50 was synthesized in the presence of diethyldimethylammonium (DEDMA) cation as a structure-directing agent (SDA), and its crystal structure was analyzed in detail by the Rietveld refinement and the maximum entropy method (MEM). RUB-50 was crysta...
  17. Enhancement in thermal stability and resistance to denaturants of lipase encapsulated in mesoporous silica with alkyltrimethylammonium (CTAB).

    Colloids and Surfaces B: Biointerfaces 75(2):478 (2010) PMID 19854031

    We assembled a highly durable conjugate with both a high-density accumulation and a regular array of lipase, by encapsulating it in mesoporous silica (FSM) with alkyltrimethylammonium (CTAB) chains on the surface. The activity for hydrolyzing esters of the lipase immobilized in mesoporous silica...
  18. Direct visualization of hetero-enzyme co-encapsulated in mesoporous silicas

    Microporous and Mesoporous Materials 127(1):61 (2010)

    In this study, a direct visualization technique was applied to the determination of a hetero-enzyme co-encapsulated in pores of mesoporous silicas in solution. Lipase and trypsin modified with fluorescent dyes, used as model enzymes, were co-encapsulated at the same instant in two kinds of ...
  19. Functional immobilization of racemase by adsorption on folded-sheet mesoporous silica

    Journal of Molecular Catalysis B: Enzymatic 64(1):107 (2010)

    Alanine racemase from Geobacillus stearothermophilus was physically immobilized on folded-sheet mesoporous silica (FSM) with pore diameters of 4 or 8.5 nm, and the activity, thermal stability, and reusability of the racemase were examined. The FSM with the larger pore diameter ...
  20. Palladium-based bifunctional membrane reactor for one-step conversion of benzene to phenol and cyclohexanone

    Catalysis Today 156(3):276 (2010)

    On the one-step hydroxylation of benzene to phenol over a Pd membrane reactor, the bifunctional effects between Pd membrane and metal particles were investigated. In this reaction system, the active oxygen species are formed by the reaction with the permeated hydrogen and adsorbed oxygen ov...