Dewaxed bamboo culms (Neosinocalamus affinis) were sequentially extracted with distilled water and 70% ethanol at 80 oC for 3 h, 0.2 and 0.5 M NaOH, 70% ethanol containing 0.6 M NaOH, and 1.0 and 2.0 M NaOH at 50 oC for 3 h using a solid to liquid ratio of 1:25 (g/mL). The hemicellulosic fractions obtained were characterized by high performance anion exchange chromatography (HPAEC), gel permeat...

Memristive behavior is defined as a resistive switching loop which can be observed from the current-voltage (I-V) characteristic of a material. This paper reports the application of TiO2 (titania) nanostructures as an active layer for a memristive device instead of using titania thin film in nanoscale thickness as reported by other researchers. 60 nm thickness of titania thin film was deposited...

Several approaches for the inactivation of bacteriophage lambda, including UV germicidal irradiation (UVGI) and the chemical agents Virkon-S, Chloros, Decon-90, and sodium hydroxide (NaOH), were compared. Virkon, NaOH, and UVGI caused a ≥7-log(10) reduction in phage titers. This study successfully describes several methods with potential for bacteriophage inactivation in industrial settings.

Surface modification of TiO2 with NaOH promoted the chemisorption, activation and photocatalytic CO2 reduction. An optimized loading amount of NaOH kept a good balance between CO2 chemisorption quantity and BET surface area of TiO2. This noble metal free method provides a simple pathway for effective multiple H(+)/e(-) CO2 photoreduction.

The validity of the reducing end group (copper reduction) method for determination of chain weight of chondroitin sulfate is shown by comparison with chain weight determination from linkage region components, xylose and galactose. It is established that chains of both chondroitin sulfate and keratan sulfate are stable to alkali as strong as 2.0 N NaOH at room temperature for at least 120 hours....

This research applied sodium hydroxide (NaOH) pretreatment and trace elements to improve biomethane production when using corn stover for anaerobic digestion. Full-factor experimental tests identified the best combination of trace elements with the NaOH pretreatment, indicating that the best combination was with 1.0, 0.4, and 0.4 mg·L(-1)·d(-1) of elements Fe, Co, and Ni, respectively. The cumu...

During our attempts to reevaluate and improve mycobacteriology laboratory procedures, we found that isolation of mycobacteria from undecontaminated specimens through the use of selective media was unrewarding and that specimen decontamination was an essential step. A reevaluation of the N-acetyl-L-cysteine-sodium hydroxide (NALC-NaOH) decontamination procedure (G. P. Kubica, W. E. Dye, M. L. Co...

Municipal solid waste (MSW) incineration fly ash (IFA) can be potentially reused as a substitute for some raw materials, but treatment for detoxification is indispensable owing to high contents of heavy metals in fly ash. In the present work, due to excessive leaching concentration of lead (Pb), a moderate thermal treatment with sodium hydroxide (NaOH) addition was employed to stabilize Pb in I...

Background: Cotton gin trash (CGT) is a lignocellulosic residue that can be used in the production of cellulosic ethanol. In a previous research, the sequential use of ultrasonication, liquid hot water, and ligninolytic enzymes was selected as pretreatment for the production of ethanol from CGT. However, an increment in the ethanol production is necessary. To accomplish that, this research eval...

SETTING Long transportation times of samples to culture laboratories can lead to higher contamination rates and significant loss of viability, resulting in lower culture positivity rates. Thin-layer agar (TLA) is a sensitive culture method for the isolation of Mycobacterium tuberculosis that has been optimised with N-acetyl-L-cysteine-sodium hydroxide (NALC-NaOH) decontaminated samples. The com...