Reagents. Oligonucleotides were synthesized and purified by Sangon Inc. (Shanghai, China). The sequences of these oligonucleotides are listed in Table S1. E.coli exonuclease III (Exo III) was purchased from Fermentas Inc. (Vilnius, Lithuania). Silver nitrates (AgNO3) were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Sodium borohydride (NaBH4) was obtained from Tianlian...

Dendritic Ag/Au bimetallic nanostructures have been synthesized via a galvanic replacement reaction (GRR) of Ag dendrites in a chlorauric acid (HAuCl4) solution. After short periods of time, one obtains structures with protruding flakes; these will mature into very porous structures with little Ag left over. The morphological, compositional, and crystal structural changes involved with reaction...

Sodium borohydride treatment systems for control of heavy metal discharge offer several advantages to the photographic industry. Chemical reduction with sodium borohydride is rapid and results in low residual metal content; in addition, the reduced metals can be recovered with minimum expense. Sodium borohydride reduction is now being used to recover high purity silver from spent fixers more co...

Photocatalysts show great potential in environmental remediation and water splitting using either artificial or natural light. Titanium dioxide (TiO2)-based photocatalysts are studied most frequently because they are stable, non-toxic, readily available, and highly efficient. However, the relatively wide band gap of TiO2 significantly limits its use under visible light or solar light. We herein...

In this work, a novel copper-based nanocomposite catalyst was fabricated by using magnetic maize straw as support for the reduction of 4-nitrophenol (4-NP). Magnetic prepared amidation reaction amine-functionalized magnetite nanoparticles (NH2–Fe3O4) with succinylated (S-MS). After (Mag-S-MS) mixed cupric ions aqueous solution, Cu(II) could be captured amino and carboxylate groups reduced sodiu...

Bacterial cellulose was produced by Acetobacter xylinum (strain TISTR 975). Bacterial cellulose is an interesting material for using as a wound dressing since it provides moist environment to a wound resulting in a better wound healing. However, bacterial cellulose itself has no antimicrobial activity to prevent wound infection. To achieve antimicrobial activity, silver nanoparticles were impre...

In the light of recent reports, based on radioactive labelling studies, that substantial amounts of N-linked oligosaccharides are released from protein under the mild-alkaline borohydride degradation conditions that are usually used to release O-linked oligosaccharides, we have investigated by chemical methods the effects of alkali alone and alkaline borohydride on the carbohydrate and peptide ...

[email protected] NPs and were synthesized by precipitation method involving three mechanisms: inclusion, occlusion, adsorption. The characterized with the help of UV-Vis spectroscopy, FESEM-EDAX, powder x-ray diffraction, TEM, ESIMS, TG/DSC analysis. morphology hexagonal rectangular, particles in range 7–12 nm. UV–visible spectral measurements showed surface plasmon resonance at 320 nm–340 nm ...

Dichloroethane is a raw material used for the manufacture of vinyl chloride monomer (VCM) and therefore has very often been detected as a contaminant in the groundwater nearby the VCM manufacturing plant. Zero-valent iron is capable of degrading a wide array of chlorinated contaminants in groundwater such as trichloroethylene, vinyl chloride, carbon tetrachloride, and tetrachloroethane. However...

The aim of this work is to open up the structure of wood while retaining a large amount of hemicelluloses, in particular (galacto)glucomannans. The effects of pre-treatments on wood meal from spruce (Picea abies) with a reducing agent (NaBH4) combined with steam explosion at very mild conditions were investigated. The effects of steam explosion at 160 °C were studied for various residence times...