Intensification of industrial activity, environment stress contributes to the significant rise heavy metal pollution in water resources. Pollution due malignant metals such as lead, chromium, arsenic etc., has been tremendously focused on communal health. Lead pollution-potable finds great threat by different sources like plating units, lead pipes Newspaper is a cellulosic materials, containing...

The design of artificial cells, which mimic the functions of native cells, is an ongoing scientific goal. The development of stimuli-responsive chemical systems that stimulate cascaded catalytic transformations, trigger chemical networks, and control vectorial branched transformations and dose-controlled processes, are the minimum requirements for mimicking cell functions. We have studied the e...

Influenza virus A/Hong Kong/483/97 (H5N1) (HK483-K) has the PB2 with lysine at position 627 (PB2-627K) and is highly pathogenic in chickens and mice. On the other hand, the pathogenicity of mutant virus (HK483-E), which was generated by substituting lysine with glutamic acid at the position of the PB2, is lower than that of HK483-K in mice, but is highly pathogenic in chickens. The PB2 is one o...

Acid-sensing ion channels (ASICs) are emerging as fundamental players in the regulation of neural plasticity and in pathological conditions. Here we showed that lead (Pb2+), a well known neurotoxic metal ion, reversibly and concentration-dependently inhibited ASIC currents in the acutely dissociated spinal dorsal horn and hippocampal CA1 neurons of rats. In vitro expression of ASIC subunits in ...

UNLABELLED Mutations in the polymerase genes are known to play a major role in avian influenza virus adaptation to mammalian hosts. Despite having avian origin PA and PB2, the 2009 pandemic H1N1 virus (pH1N1) can replicate well in mammalian respiratory tracts, suggesting that these proteins have acquired mutations for efficient growth in humans. We have previously shown that PA from the pH1N1 v...

A PVC membrane incorporating p-tert-butyl calix[4]crown with imine units as an ionophore was prepared and used in an ion-selective electrode for the determination of mercury(II) ions. An electrode based on this ionophore showed a good potentiometric response for mercury(II) ions over a wide concentration range of 5.0 x 10(-5) - 1.0 x 10(-1) M with a near-Nernstian slope of 27.3 mV per decade. T...

The production of biosorbents by waste biomass has attracted considerable attention due to the low cost and abundance raw materials. Here biochar produced from Eucalyptus camdulensis sawdust (EU-biochar) via pyrolysis at 600 °C was used as a potential biosorbent for Ni2+ Pb2+ metal ions wastewater. Characterization experiments indicated formation C- O-bearing functional groups on EU-biochar sur...

Dual-Functional Ag@Pt Nanozymes Two types of dual-functional nanozymes, adjustable NA-Ag@Pt nanozyme and POD-like enhancing FNA-Ag@Pt nanozyme, are designed synthesized by nucleic acid metal ions coordination-driven one-step rapid self-assembly. One the Pb-FNA-Ag@Pt nanozymes can achieve specific detection Pb2+ solve specificity problem both also potential antibacterial agents for biological fu...

A green and efficient electrochemical sensor for simultaneous detection of cadmium (Cd) lead (Pb) heavy-metal ions is proposed in this work. For aim, biomass-derived porous carbon (BPC) along with nanoscale zero-valent iron (nZVI) nanoparticles have been used to modify glassy electrodes (GCE). The substrate herein was obtained from abundant marine biomass, Posidonia oceanica. nZVI particles wer...

Chitosan-coated magnetic nanoparticles (CMNP) were prepared in one-step by precipitation in a high-aqueous phase content reverse microemulsion in the presence of chitosan. The high-aqueous phase concentration led to productivities close to 0.49 g CMNP/100 g microemulsion; much higher than those characteristic of precipitation in reverse microemulsions for preparing magnetic nanoparticles. The o...