sulfonic acid functionalized sba-15 (sba-pr-so3h) as a new nanoporous acid catalyst was used in the one-pot synthesis of polyhydroquinolines derivatives via the hantzsch four component condensation reaction of aldehydes, b-ketoesters, dimedone and ammonium acetate under solvent free conditions with short reaction time in excellent yields. sba-pr-so3h was proved to be an efficient heterogeneous ...

In this work, we report the synthesis of a combinatorial library of 80 derivatives of EDTA amide x-aminenaphthalene-y-sulfonic acid on four different supports with variable length linker. The sensing fluorescence behavior of these materials for transitions metals was studied by packing the beads into a conventional flow-through cell in a continuous flow injection set up. The fluorescence emissi...

SHIRACRI, R., SUKENO, N., SASA%I, T., UMENAI, T., SHIRATORI, T., KONNO, J. and IsRIDA, N. Frequency of Australia Antigen in Volunteer Blood-donors in Miyagi Prefecture. Tohoku J. exp. Med., 1972, 106 (2),211-212The incidence of Australia (Au) antigen among male (1.9%) was higher than that among female (1.4%) in Miyagi Prefecture. In three counties of the Prefecture, higher in cidence of Au anti...

Male rats were given daily sessions during which a palatable saccharin solution was available. Based on intakes averaged over 3 days, groups with low, intermediate, or high intake of saccharin were formed. These rats were then given daily sessions in which alcohol (2-8%) or water were available. Initially, sessions were conducted with rats on a food restriction schedule; in later sessions, food...

Based on the results described in the literature on the reactivity of sodium towards DBT and its derivates, the effect of sodium dispersed on the surface of a carbonaceous support on the removal of DBT from hexane solution at ambient conditions has been investigated. Since the main objective of this paper is to demonstrate the effect of sodium on the reactive adsorption of DBT from an organic s...

In this study, we investigated the chemical functionalization of carboxylated multiwalled carbon nanotubes (MWCNT–COOH) by 1-Amino-2-naphthol-4-sulfonic acid (ANSA). The functionalized MWCNTs exhibited good aqueous solubility due to the presence of the –OH and – SO3H groups of ANSA. The antimicrobial activity of the MWCNT–COOH as well as its functionalized multiwall nanotube MWCNT-CO-2-(1-amino...

A hybrid silica monolithic stationary phase for RP CEC was prepared by in situ co-condensation of (3-mercaptopropyl)-trimethoxysilane (MPTMS), phenyltriethoxysilane (PTES), and tetraethoxysilane (TEOS) via a sol-gel process. The thiol groups on the surface of the stationary phase were oxidized to sulfonic acids by peroxytrifluoroacetic acid. The introduced sulfonic acid moieties on the monolith...

Cu-filled TSV (through silicon via) is important technology for 3-D LSIs in order to obtain higher packing density, faster signal transmission, and lower power consumption. Diameter of TSV is expected to be smaller than 2 μm, and its aspect ratio to be larger than 10 in near future [1]. For realizing a high aspect ratio Cu-filled TSV, it is essentially important to form the barrier and seed lay...