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Journals and Conferences
Current methods to find significantly under- and over-represented gene ontology (GO) terms in a set of genes consider the genes as equally probable "balls in a bag", as may be appropriate for transcripts in micro-array data. However, due to the varying length of genes and intergenic regions, that approach is inappropriate for deciding if any GO terms are… (More)
The transduction signals from the immobilisation of a class I heavy chain, HLA-A2, on a layer guided acoustic plate mode device, followed by binding of beta(2)-microglobulin and subsequent selective binding of a target peptide are reported.
An acoustic wave sensor coated with an artificial biomimetic recognition element has been developed to selectively screen for nandrolone in the liquid phase. A highly specific covalently imprinted polymer (MIP) was spin coated onto one electrode of a quartz crystal microbalance (QCM) as a thin permeable film. Selective rebinding of the nandrolone was… (More)
A piezoelectric sensor coated with an artificial biomimetic recognition element has been developed for the determination of L-menthol in the liquid phase. A highly specific noncovalently imprinted polymer (MIP) was cast in situ on to the surface of a gold-coated quartz crystal microbalance (QCM) electrode as a thin permeable film. Selective rebinding of the… (More)
A chemically coated piezoelectric sensor has been developed for the determination of PAHs in the liquid phase. An organic monolayer attached to the surface of a gold electrode of a quartz crystal microbalance (QCM) via a covalent thiol-gold link complete with an ionically bound recognition element has been produced. This study has employed the PAH… (More)
The structure of the capsular polysaccharide from Escherichia coli O8:K87:H19 was investigated by methylation analysis and by one- and two-dimensional 1H- and 13C-n.m.r. spectroscopy. The repeating unit was shown to be a branched pentasaccharide with the structure (formula; see text)
Trideuteriomethylated and methylated derivatives of the capsular polysaccharide of Escherichia coli K57 were partially cleaved by Et3SiH, using Me3SiOSO2 Me and Me3SiOSO2CF3 as catalysts, to produce oligosaccharide-anhydroalditols. The structures of the trideuteriomethylated trisaccharide- and tetrasaccharide-anhydroalditols isolated were established by… (More)
The structure of the repeating unit of the capsular polysaccharide from Escherichia coli serotype K36 has been established from the results of spectroscopic and chemical analyses of (a) P1, the tetrasaccharide obtained on depolymerisation of the polysaccharide with a bacteriophage-borne endo-galactosidase, (b) P1-alditol, and (c) the original… (More)
The primary structure of the acidic capsular polysaccharide of Escherichia coli K57 was elucidated by methylation analysis and 1D- and 2D-n.m.r. spectroscopy. The repeating unit was identified as a linear tetrasaccharide having the structure shown. ----2)-beta-D-Ribf-(1----4)-beta-D-Galp-(1----3)-alpha-D-GlcpNAc-( 1----4)-alpha - D-GalpA-(1----.