Experiments are carried out on the detection of free radicals in the plasma induced by a pulsed electrohydrodynamic discharge using electron spin resonance (ESR) measurement. In addition, decolorization of reactive dye (C. I. Reactive RED 106) solution is investigated as a related topic. The plasma reactor is a barrier-type and consists of a stainless needle electrode inside the solution and qu...

Distinguishing the epimers iduronic acid (IdoA) and glucuronic acid (GlcA) has been a long-standing challenge for the mass spectrometry analysis of glycosaminoglycan (GAG) oligosaccharides. In this work, electron detachment dissociation (EDD) and Fourier transform ion cyclotron resonance mass spectrometry is shown to provide mass spectral features that can distinguish GlcA from IdoA in heparan ...

The development of efficient heterogeneous persulfate activators is one the main research topics in wastewater treatment area. present work deals with activation sodium (SPS) using nickel oxide/strontium carbonate (NiO/SrCO3) for degradation sulfamethoxazole (SMX), a representative compound from group antibiotics. Results showed that NiO/SrCO3 exhibited high performance towards SPS, leading to ...

The promotion of pollutant oxidation degradation efficiency by adding organic catalysts has obtained widespread attention in recent years. Studies have shown that substances promote the process traditional reactions accelerating redox cycle transition metals, chelating activating oxidants directly to generate reactive oxygen species such as hydroxyl and sulfate radical, or changing electron dis...

Edestin, a major hempseed storage protein from Cheungsam, was isolated to apparent homogeneity by acid precipitation and gel filtration chromatography. The native molecular weight of purified edestin was approximately 300 kDa by Sephacryl S-300 gel filtration. Upon adding 2mercaptoethanol, the isolated edestin of 56.7 kDa on the non-reduced sodium dodecyl sulfate polyacrylamide gel was converte...

A controlled new oxidant sulfate radical anion (SO4(·-)) was found and it can be easily prepared by mixing Na2S2O4 and TBHP with stirring. In this new metal-free oxidation system (Na2S2O4/TBHP), SO4(·-) can be used as a controllable oxidant to oxidize various aromatic alcohols to the corresponding aldehydes in good yields without any acid formation at room temperature. SO4(·-) was determined by...

Sub-micrometre single crystal diamond membranes are of huge importance for next generation optical, quantum and electronic device applications. Electrochemical etching has proven a critical step in the production such membranes. Etching is used to selectively remove very thin layer sub-surface sp2 carbon, prepared by ion implantation bulk diamond, releasing membrane. Due nanosized dimensions, t...

This report describes the preparation of antibacterially active emulsified polyacrylate nanoparticles in which a penicillin antibiotic is covalently conjugated onto the polymeric framework. These nanoparticles were prepared in water by emulsion polymerization of an acrylated penicillin analogue pre-dissolved in a 7:3 (w:w) mixture of butyl acrylate and styrene in the presence of sodium dodecyl ...