2D Network overtakes 3D for photocatalytic hydrogen evolution.

3-Dimensional (3D) cyanide coordination polymers, typically known as Prussian blue Analogues (PBAs), have received great attention in catalysis due to their stability, easily tuned metal sites, and porosity. However, their high crystallinities and relatively low number of surface-active sites significantly hamper their intrinsic catalytic activities. Herein, we report the utilization of a 2-dimensional (2D) layered cobalt tetracyanonickelate, [Co-Ni], for the reduction of protons to H.

Light-Driven Water Oxidation with Ligand-Engineered Prussian Blue Analogues.

The elucidation of the ideal coordination environment of a catalytic site has been at the heart of catalytic applications. Herein, we show that the water oxidation activities of catalytic cobalt sites in a Prussian blue (PB) structure could be tuned systematically by decorating its coordination sphere with a combination of cyanide and bidentate pyridyl groups.  K[Co(bpy)][Fe(CN)] (), K[Co(phen)][Fe(CN)] (), {[Co(bpy)][Fe(CN)]}[Fe(CN)] (), and {[Co(phen)][Fe(CN)]}[Fe(CN)] Cl () were prepared by introducing bidentate pyridyl groups (phen: 1,10-phenanthroline, bpy: 2,2'-bipyridine) to the common synthetic protocol of Co-Fe Prussian blue analogues.

Seroprevalence of hepatitis A virus infection among schoolchildren and adolescents in Kaduna, Nigeria.

Background: Hepatitis A is an infectious viral disease, caused by hepatitis A virus (HAV), endemic in many developing countries. A recent review of the global prevalence of HAV infection and susceptibility by the WHO had few data on the seroprevalence of HAV in Nigeria. This study was designed to determine the seroprevalence of HAV among schoolchildren and adolescents in Kaduna State and to identify factors associated with seropositivity.

Genetic characteristics, coreceptor usage potential and evolution of Nigerian HIV-1 subtype G and CRF02_AG isolates.

HIV-1 CRF02_AG and subtype G (HIV-1G) account for most HIV infections in Nigeria, but their evolutionary trends have not been well documented. To better elucidate the dynamics of the epidemic in Nigeria we characterised the gag and env genes of North-Central Nigerian HIV-1 isolates from pregnant women. Of 28 samples sequenced in both genes, the predominant clades were CRF02_AG (39%) and HIV-1G (32%).

Evidence of Lagos bat virus circulation among Nigerian fruit bats.

During lyssavirus surveillance, 350 brains from four species of fruit bats and one species of insectivorous bat were collected from seven locations in Northern Nigeria during May to October, 2006. Lyssavirus antigen was not detected in the brains, and isolation attempts in mice were unsuccessful. However, serologic tests demonstrated the presence of lyssavirus-neutralizing antibodies in bat sera.