Results 21 to 30 of about 38,212 (261)

Electrochemical Behavior of a Thio-Quinazoline Derivative Electrodeposited on a Glassy Carbon Electrode Modified with Multi-Wall Carbon Nanotubes: Application for Simultaneous Determination of Hydroxylamine and Nitrite

International Journal of Electrochemical Science, 2013
In this paper, we report the characteristics of a modified electrode prepared by electrodeposition of anthio-quinazoline derivative on the multi-wall carbon nanotubes modified glassy carbon electrode (QMWCNT-GCE).
M. Mehdi Aghayizadeh, Navid Nasirizadeh, S. Mansour Bidoki, M. Esmail Yazdanshenas   +3 more
doaj   +1 more source

Four-Component Reaction between Ethyl Benzoylacetate, Hydroxylamine, Aldehydes and Malononitrile: Synthesis of Isoxazol-5(2H)-Ones [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2016
We present herein a new and efficient four-component synthesis of isoxazol-5(2H)-ones involving ring closing/Knoevenagel condensation/Michael addition sequential reactions.
Yaghoub Sarrafi, Mohammad Eghtedari
doaj  

Synthesis of Tricyclic Condensed Rings Incorporating the Pyrazole or Isoxazole Moieties Bonded to a 4-Piperidinyl Substituent

Molecules, 2013
In this paper we report the synthesis of new compounds based on the pyrazole and isoxazole framework fused to a cycloalkene unit, and bearing as a substituent the 1-piperidinyl group as new examples of potential antipsychotic molecules.
Giorgio Chelucci, Gérard A. Pinna, Giovanni Loriga, Giansalvo Pinna   +3 more
doaj   +1 more source

Alcaligenes ammonioxydans HO-1 antagonizes Bacillus velezensis via hydroxylamine-triggered population response

Frontiers in Microbiology, 2022
Antagonism is a common behavior seen between microbes in nature. Alcaligenes ammonioxydans HO-1 converts ammonia to nitrogen under aerobic conditions, which leads to the accumulation of extracellular hydroxylamine (HA), providing pronounced growth ...
Xi-Yan Gao, Wei Xie, Wei Xie, Ying Liu, Lan Ma, Lan Ma, Zhi-Pei Liu   +6 more
doaj   +1 more source

Pyrite/H2O2/hydroxylamine system for efficient decolorization of rhodamine B

Water Science and Technology, 2021
To improve the efficiency of the Fe(II)/Fe(III) cycle and continuous reactivity of pyrite, a pyrite/H2O2/hydroxylamine (HA) system was proposed to treat rhodamine B (RhB).
Guang-Jun He, Deng-Jie Zhong, Yun-Lan Xu, Peng Liu, Si-Jing Zeng, Shuang Wang   +5 more
doaj   +1 more source

Derivatization of Methylglyoxal for LC-ESI-MS Analysis—Stability and Relative Sensitivity of Different Derivatives

Molecules, 2018
The great research interest in the quantification of reactive carbonyl compounds (RCCs), such as methylglyoxal (MGO) in biological and environmental samples, is reflected by the fact that several publications have described specific strategies to perform
Stefan Fritzsche, Susan Billig, Robby Rynek, Ramarao Abburi, Elena Tarakhovskaya, Olga Leuner, Andrej Frolov, Claudia Birkemeyer   +7 more
doaj   +1 more source

Electrocatalytic Nitrate Reduction to Hydroxylamine: Breaking the Activity-Selectivity Trade-Off by Designer Bifunctional Metal-Organic Frameworks. [PDF]

Angew Chem Int Ed Engl
A bifunctional metal‐organic framework (MOF) catalyst with dual active sites is developed for enabling NH2OH electrosynthesis via NitRR with both high selectivity and activity. ABSTRACT Electrocatalytic nitrate reduction reaction (NitRR) offers a promising route for hydroxylamine (NH2OH) synthesis under ambient conditions.
Zou Y, Wang Z, Zhang C, Bao T, Xi Y, Zhao Y, Li Z, Wang Y, Liu C, Yu C.   +9 more
europepmc   +3 more sources

Kinetic Model of Biphasic Character of Catalyse Inhibition

Nonlinear Analysis, 2003
A mathematical model of kinetics of fungal catalase inhibition with hydroxylamine in presence of substrate (hydrogen peroxide) has been developed. The scheme includes an intermediate formation and slow reversible native enzyme production.
J. Kulys, K. Kriaučiūnas, R. Vidžiūnaitė   +2 more
doaj   +1 more source

Dissolved Nitrous Oxide and Hydroxylamine in the South Yellow Sea and the East China Sea During Early Spring: Distribution, Production, and Emissions

Frontiers in Marine Science, 2021
Coastal marine systems are active regions for the production and emission of nitrous oxide (N2O), a potent greenhouse gas. Due to the inherently high variability in different coastal biogeochemical cycles, the factors and mechanisms regulating coastal ...
Xueji Gu, Xueji Gu, Fang Cheng, Fang Cheng, Xiaolei Chen, Xiaolei Chen, Guanxiang Du, Guanxiang Du, Guiling Zhang, Guiling Zhang   +9 more
doaj   +1 more source

Molecular Probes for Evaluation of Oxidative Stress by In Vivo EPR Spectroscopy and Imaging: State-of-the-Art and Limitations

Magnetochemistry, 2019
Oxidative stress, defined as a misbalance between the production of reactive oxygen species and the antioxidant defenses of the cell, appears as a critical factor either in the onset or in the etiology of many pathological conditions.
Nikola Babić, Fabienne Peyrot
doaj   +1 more source