Facile one-step synthesis of PhCCu nanowires with enhanced photocatalytic performance.

In recent years, the research of phenylethynylcopper (PhCCu) in photocatalysis has attracted immense attention. However, its synthesis requires two steps extending over 9 days. In this paper, the successful preparation of PhCCu nanowires is reported using a highly rapid and facile one-step method directly using copper acetate and phenylacetylene as raw materials and ascorbic acid as reducing agent.

Extensive diversity of Rickettsiales bacteria in two species of ticks from China and the evolution of the Rickettsiales.

Background: Bacteria of the order Rickettsiales (Alphaproteobacteria) are obligate intracellular parasites that infect species from virtually every major eukaryotic lineage. Several rickettsial genera harbor species that are significant emerging and re-emerging pathogens of humans. As species of Rickettsiales are associated with an extremely diverse host range, a better understanding of the historical associations between these bacteria and their hosts will provide important information on their evolutionary trajectories and, particularly, their potential emergence as pathogens.

Biomimetic models for the active site of [Fe]hydrogenase featuring an acylmethyl(hydroxymethyl)pyridine ligand.

The first acylmethyl(hydroxymethyl)pyridine ligand-containing [Fe]hydrogenase model complexes 2-4 have been synthesized starting from the nucleophilic substitution reaction of 2-(4-MeC(6)H(4)SO(3)CH(2))-6-HOCH(2)C(5)H(3)N with Na(2)Fe(CO)(4). While the reaction course for producing complex 3 via the highly unstable intermediate complex 1 is monitored by in situ IR spectroscopy, the isolated model complexes 2-4 are fully characterized.

Pathogenicity of a natural reassortant hantavirus CGRn9415 in newborn rats and newborn mice.

To better understand the pathogenicity and infectivity of a natural reassortant CGRn9415 generated from Hantaan virus (HTNV) and Seoul virus (SEOV), CGRn9415, HTNV 76-118 and SEOV L99 were used to infect newborn Kunming (KM) mice and newborn Wistar rats. In KM mice, there was no statistical difference between the death rate with CGRn9415 and that of L99, while 76-118 killed all mice even at low dosage; CGRn9415 killed all infected rats similar to L99 at the dosage of 10(5) f.f.