Based on the fluorescence quenching of novel denatured protein-protected gold nanoclusters, a label-free detection method of acetylcholinesterase (AChE) activity has been developed. Using denatured bovine serum albumin (dBSA), in which 35 cysteine residues can interact polyvalently with Au nanoclusters (AuNCs) as a stabilizing agent, water-soluble and stable fluorescent gold nanoclusters were s...

ing issues from the overall programme and perspective, there appear to be significant moments of c~!_l.se~l!_S between_ the ANC and_ Wo.rld_Bank particularly with regard to the scale, scope and general direction of the land reform process in South Africa. There are, however, three main disagreements between the ANC and the World Bank. The first centres on th~motivation for land reform. Whilst t...

Soil phenolic acids mainly come from crop residue and root exudates, which are often reported as allelochemicals affecting growth soil microbial community. Here, two acid compounds, p-hydroxyphenylacetic (HPA) p-hydroxybenzoic (HBA) were amended to the soils incubated under room conditions, samples collected soybean corn fields separately. The community was determined by PCR-DGGE (polymerase ch...

The title compound {systematic name: 4-methyl-N'-[(3E)-2-(1-methyl-prop-yl)-5-oxopyrrolidin-3-yl-idene]benzene-sulfono-hydrazide}, C(15)H(21)N(3)O(3)S, is the condensation product of deacetyl tenuazonic acid (DTA) and p-toluene-sulfonohydrazide. The crystal structure consists of chains along [100] linked by N-H⋯O hydrogen bonds.

Background. Hox genes are implicated in hematopoietic stem cell (HSC) regulation as well as in leukemia development through translocation with the nucleoporin gene NUP98. Interestingly, an engineered NUP98-HOXA10 (NA10) fusion can induce a several hundred-fold expansion of HSCs in vitro and NA10 and the AML-associated fusion gene NUP98-HOXD13 (ND13) have a virtually indistinguishable ability to...