Reducing agents

The materials with a spinel structure have gotten some attention for their resistance to oxidizing/reducing agents and their application in many fields such as pigments, refractory, electronic engineering, magnetism, and energy storage materials.

8p vifilm 11-10-2024 2 1   Download

Titanium oxides nanotubes (TNTs) were prepared by hydrothermal method and used as nano-support for nickel nanoparticles. Indeed, nickel nanoparticles supported TNTs (Ni-TNTs) were in situ synthesized from nickel salt and TNTs by chemical reduction method using sodium borohydride (NaBH4) as reducing agent.

5p vikwong 29-09-2024 4 1   Download

The low-density lipoprotein cholesterol (LDL-C) is established as a causative agent of atherosclerotic cardiovascular disease (ASCVD) and lowering plasma LDL-C levels represents the main approach to reduce the risk of cardiovascular events. Statins remain the cornerstone of drug therapy for dyslipidemia.

11p vifaye 20-09-2024 1 1   Download

The plasmon characterization of AgNS on paper was systematically investigated by the diffuse reflectance spectroscopy. The fabricated paper-based SERS substrates were used to detect melamine in an aqueous solution and to determine the influence of type RAs on the enhancement factor (EF) and signal uniformity of SERS substrates. Among the four types of RAs, the SERS substrates used NaBH4 have the highest SERS signal with the limit of detection of 10-8 M for melamine and the EF = 2.3 × 109 .

9p dianmotminh02 03-05-2024 7 2   Download

The present study focuses on the preparation of silver/copper bimetallic hybrid nanoparticles by green method from precursor solutions of silver nitrate & copper nitrate and the locally available citrus fruit (lemon) peel extract which behaves as the stabilizing and reducing agent. Initially, the formation of hybrid nanoparticles was noticed in the reaction mixture by colour change.

7p dianmotminh02 03-05-2024 7 2   Download

In this work, gold nanorods (AuNRs) with well-controlled aspect ratios were prepared using a modified seedgrowth method and covered by TiO2 layers through the hydrothermal reaction to improve stability. Integrating TiO2 with plasmonic rod-like gold nanoparticles could enhance their photo activity by the local surface plasmon resonance (LSPR) effect. AuNRs aspect ratios were controlled by varying the amount of seed solution, reducing agents, surfactant (CTAB), and titanium (IV) but oxide.

7p dianmotminh02 03-05-2024 9 3   Download

House of Risk Method is used to identify the most potential risk agents, while the fuzzy reasoning risk assessment model is used to determine the risk severity by risk agents. Based on the analysis, it is found that risk agent stock out of the product is the most potential risk agent in this industry. To reduce the impact, mitigation strategies are suggested for stock out product risk agents in warehouse are flexible supply base, safety stock, internal coordination, as well as create and control production schedules.

5p longtimenosee10 26-04-2024 5 2   Download

The major protein fraction in pearl millet is prolamin the alcohol soluble fraction called pennisetin. Researches on the factors affecting pennisetin extraction and on its functional properties are still very scant. In this paper, the effect of temperature, reducing agents (β-mercaptoethanol, dithiothreitol or sodium metabisulfite) and sodium hydroxide on pennisetin extraction was assessed.

7p mudbound 10-12-2021 12 2   Download

The characteristics of synthesized nanoparticles depend on the source of the plant extracts because of different combinations and concentrations of organic reducing agents present in the extracts (Mukunthan and Balaji, 2012).

178p spiritedaway36 26-11-2021 11 2   Download

Successfully synthesized nano – mixed oxide by different gelling agents; compared, selected the appropriate gelling agent; researched to evaluate the catalytic activity of mixed oxide nanoparticles formed with pollutants methyl orange (MO), methylene blue (MB). Successful dispersed mixed oxide nanoparticles on rGO; investigated catalytic activity of material systems on parathion, fenitrothion.

28p capheviahe26 25-01-2021 32 5   Download

Systematize, supplement and clarify the basic theoretical issues about life insurance, life insurance agents, factors affecting the intention of life insurance agents to leave the business. Recommendations are proposed to reduce life insurance agent's intention to leave the business of the life insurance market in Vietnam.

13p mmlemmlem_124 22-12-2020 34 1   Download

A green and simple approach has been successfully developed to synthesize chitosan/Ag nanocomposites using kumquat extract as a biological reducing agent. It indicates to be an ecofriendly and green method for the synthesis providing a cost effective and an efficient route for the chitosan/Ag nanocomposites’ synthesis. The prepared chitosan/Ag nanocomposites have been characterized by UV-vis, TEM, FTIR, and XRD. Result showed those chitosan/Ag nanocomposites have been obtained with average particle size ~15-25 nm.

10p abcxyz123_02 03-03-2020 28 2   Download

Synthesis of the copper nanoparticles colloidal solutions by chemical reduction method with various precursors including copper oxalate, CuCl2, CuSO4, Cu(NO3)2 with hydrazine hydrate reducing agent, NaBH4; solvent glycerin and water, PVA and PVP protection, dispersants and protective agents: including trisodium citrate, ascorbic acid, CTAB.

26p change05 10-06-2016 49 4   Download

Aspirin is an effective analgesic (pain reliever), antipyretic (fever reducer) and anti-inflammatory agent and is one of the most widely used non-prescription drugs. The use of aspirin had its origin in the 18th century, when it was found that an extract from the bark of willow trees was useful in reducing pain and fever. The active ingredient in willow bark was later found to be salicylic acid.

6p thanhtrinhqc 23-08-2014 120 5   Download

A splicing factor SF2/ASF is a natural substrate for the kinase activity of human topoisomerase I. This study demonstrates that SF2/ASF inhibits DNA cleavage by human topoisomerase I induced by the anti-cancer agent camptothecin. The inhibition is independent of the phosphorylation status of SF2/ASF. We show that the inhibition did not result from binding of SF2/ASF to DNA that would hinder interactions between topoisomerase I and DNA. Neither it was a consequence of a loss of sensitivity of the enzyme to camptothecin.

7p research12 01-06-2013 39 5   Download

The urea cycle enzyme arginase (EC 3.5.3.1) hydrolyzes L-arginine to L-ornithine and urea. Mammalian arginases require manganese, have a highly alkaline pH optimum and are resistant to reducing agents. The gastric human pathogen,Helicobacter pylori, also has a complete urea cycle and contains therocFgene encoding arginase (RocF), which is involved in the pathogenesis ofH. pyloriinfection. Its arginase is specifically involved in acid resistance and inhibits host nitric oxide production.

11p dell39 03-04-2013 50 5   Download

We have investigated the conformational changes of New-castle disease virus (NDV) glycoproteins in response to receptor binding, using 1,1-bis(4-anilino)naphthalene-5,5-disulfonic acid (bis-ANS) as a hydrophobicity-sensitive probe. Temperature- and pH-dependent conformational changes were detected in the presence of free bovine gan-gliosides. The fluorescence of bis-ANS was maximal at pH 5.

8p dell39 03-04-2013 41 4   Download

Vitamin C, a reducing agent and antioxidant, is a cofactor in reactions cata-lyzed by Cu + -dependent monooxygenases and Fe 2+ -dependent dioxygenas-es. It is synthesized, in vertebrates having this capacity, fromd-glucuronate. The latter is formed through direct hydrolysis of uridine diphosphate (UDP)-glucuronate by enzyme(s) bound to the endoplasmic reticulum mem-brane, sharing many properties with, and most likely identical to, UDP-glucuronosyltransferases.

22p inspiron33 23-03-2013 53 5   Download

Transmissible spongiform encephalopathies (TSEs), or prion diseases, are fatal neurodegenerative disorders caused by an infectious agent termed a prion, which can convert normal cellular prion protein (PrP C ) into a patho-logically misfolded isoform (PrP Sc ). Taking advantage of protein misfolding cyclic amplification (PMCA), a series of experiments was conducted to investigate the possible influences of pyridine nucleotides on the propaga-

10p vinaphone15 27-02-2013 40 2   Download

An Empirical Investigation of International Consumer Market Segmentation Decisions They may also be more effective at exerting “voice” to manage agent behavior, even without the exit option that school choice policies provide (Hirschman, 1970). Finally, student composition may operate as an employment amenity for teachers and administrators, reducing the salaries that the school must pay and increasing the quality of teachers that can be hired for any fixed salary (Antos and Rosen, 1975).

167p mualan_mualan 25-02-2013 89 11   Download