Catechin, a common ingredient of tea and coffee is a colourless water soluble compound which undergoes spontaneous oxidation by aerial O2, heat and also by UV exposure or ammonium persulfate (APS) treatment resulting in a noticeable change to yellow colouration (λmax = 440 nm). Several α-unsaturated fatty acids (ascorbic, maleic, sorbic but not acrylic), βmercapto ethanol (BME) and native bovin...

Small conductance calcium-activated potassium channels (SK channels) are present in spines and can be activated by backpropagating action potentials (APs). This suggests they may play a critical role in spike-timing dependent synaptic plasticity (STDP). Consistent with this idea, EPSPs in both cortical and hippocampal pyramidal neurons were suppressed by preceding APs in an SK-dependent manner....

Emerging contaminants (ECs) usually refer to pesticides, polycyclic aromatic hydrocarbons (PAHs), dioxins, personal care products, cosmetics, and medications. Due the strong demand quick growth of these businesses, ECs have continuously been found in alarming amounts groundwater, surface water, wastewater. These provide a significant non-esthetic threat ecosystem as whole can cause contaminatio...

OBJECTIVE To characterize the interaction between procoagulant and/or anticoagulant serine proteases and human monoclonal IgG antiphospholipid antibodies (aPL) and polyclonal IgG derived from patients with the antiphospholipid syndrome (APS). METHODS Five human monoclonal IgG with small differences in their sequences were tested for binding to protein C, activated protein C, plasmin, factor V...

Persulfate-based in situ chemical oxidation (ISCO) has been increasingly used for the remediation of contaminated groundwater and soil. In recent years, there have numerous studies literature on all aspects activation persulfate contaminant removal at laboratory scale, including ways mechanisms activation, pathways degradation, factors associated with performance, methods characterizing process...

In the present study, biochars from rice husk were synthesized via pyrolysis at 400, 550, 700 and 850 °C for 1 h under a limited O2 atmosphere, characterized with various techniques of used as catalysts to activate persulfate degrade sulfamethoxazole (SMX). After physicochemical characterization biochars. SMX degradation tests performed using different water matrices, biochar concentrations ini...

In this paper, we demonstrate for the first time that poly(m-phenylenediamine) (PMPD) nanospheres and nanorods can be selectively synthesized via chemical oxidation polymerization of m-phenylenediamine (MPD) monomers using ammonium persulfate (APS) as an oxidant at room temperature. It suggests that the pH value plays a critical role in controlling the the morphology of the nanostructures and f...