scholarly journals Immobilization adjusted clock reaction in the urea–urease–H+ reaction system

RSC Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 3514-3519 ◽  
Author(s):  
Dan Yang ◽  
Junhe Fan ◽  
Fengyi Cao ◽  
Zuojun Deng ◽  
John A. Pojman ◽  
...  
Keyword(s):  
Reaction System ◽  
Free Enzyme ◽  
System P ◽  
Initial Ph ◽  
Ph Curve ◽  
Clock Reaction

The reported immobilization shifts the bell-shaped reactivity-pH curve to lower pHs and enables the clock reaction to occur from a very low initial pH, where the free enzyme had already lost its activity.

Catalytic conversion of biomass derivatives to lactic acid with increased selectivity in an aqueous tin(ii) chloride/choline chloride system

2018 ◽  
Vol 20 (17) ◽  
pp. 4112-4119 ◽  
Author(s):  
Asep Bayu ◽  
Akihiro Yoshida ◽  
Surachai Karnjanakom ◽  
Katsuki Kusakabe ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Lactic Acid ◽  
Aqueous Phase ◽  
Choline Chloride ◽  
Reaction System ◽  
Catalytic Conversion ◽  
Phase Reaction ◽  
Chloride System ◽  
System P

The catalytic activity and selectivity of SnCl2 for the conversion of biomass derivatives into LacA in the aqueous phase reaction system was found to be increased by the addition of choline chloride.

Ultrasensitive version of nucleic acid sequence-based amplification (NASBA) utilizing nicking and extension chain reaction system

Nanoscale ◽  
2021 ◽  
Author(s):  
Yong Ju ◽  
Hyo Yong Kim ◽  
Jun Ki Ahn ◽  
Hyun Gyu Park
Keyword(s):  
Nucleic Acid ◽  
Reaction System ◽  
Isothermal Amplification ◽  
Nucleic Acid Sequence ◽  
Chain Reaction ◽  
Rna Targets ◽  
System P ◽  
Amplification Technique ◽  
Extension Chain

Nucleic acid sequence-based amplification (NASBA) is a transcription-based isothermal amplification technique especially designed for the detection of RNA targets. The NASBA basically relies on the linear production of T7 RNA...

Horseradish peroxidase-catalyzed hydrogelation consuming enzyme-produced hydrogen peroxide in the presence of reducing sugars

Soft Matter ◽  
2019 ◽  
Vol 15 (10) ◽  
pp. 2163-2169 ◽  
Author(s):  
Enkhtuul Gantumur ◽  
Shinji Sakai ◽  
Masaki Nakahata ◽  
Masahito Taya
Keyword(s):  
Hydrogen Peroxide ◽  
Horseradish Peroxidase ◽  
Reducing Sugars ◽  
Reaction System ◽  
System P

Three kinds of reducing sugars are applied to HRP-catalyzed hydrogelation to promote the generation of H2O2 in the reaction system.

Is bond stretch isomerism in mononuclear transition metal complexes a real issue? The misleading case of the MoCl5/tetrahydropyran reaction system

2015 ◽  
Vol 44 (28) ◽  
pp. 12653-12659 ◽  
Author(s):  
Francesco Paolo Di Nicola ◽  
Massimiliano Lanzi ◽  
Fabio Marchetti ◽  
Guido Pampaloni ◽  
Stefano Zacchini
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Reaction System ◽  
Real Issue ◽  
System P ◽  
Bond Stretch

The MoCl5/tetrahydropyran reaction system provides an opportunity for discussing the possible generation of bond stretch isomers.

scholarly journals Cu2(OH)PO4/reduced graphene oxide nanocomposites for enhanced photocatalytic degradation of 2,4-dichlorophenol under infrared light irradiation

RSC Advances ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 3611-3618 ◽  
Author(s):  
Chenyang Zhang ◽  
Zhen Du ◽  
Ruyi Zhou ◽  
Peng Xu ◽  
Xinghua Dong ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Photocatalytic Degradation ◽  
Reduced Graphene Oxide ◽  
Reaction System ◽  
Light Irradiation ◽  
Infrared Light ◽  
System P ◽  
Reduced Graphene

Nanocomposites of Cu2(OH)PO4 and rGO exhibit the maximized infrared light photocatalytic activity for the degradation of 2,4-DCP due to the combination of the photocatalytic and photo-Fenton effects into one reaction system.

An enhanced enzymatic reaction using a triphase system based on superhydrophobic mesoporous nanowire arrays

2019 ◽  
Vol 4 (1) ◽  
pp. 231-235 ◽  
Author(s):  
Fengying Guan ◽  
Jun Zhang ◽  
Heming Tang ◽  
Liping Chen ◽  
Xinjian Feng
Keyword(s):  
Mass Transport ◽  
Aqueous Solutions ◽  
Reaction Kinetics ◽  
Enzymatic Reaction ◽  
Reaction System ◽  
Nanowire Arrays ◽  
System P ◽  
Wide Range

Gaseous reactants play a key role in a wide range of biocatalytic reactions, however reaction kinetics are generally limited by the slow mass transport of gases (typically oxygen) in or through aqueous solutions. Herein we address this limitation by developing a triphase reaction system.

Ag-doped nano magnetic γ-Fe2O3@DA core–shell hollow spheres: an efficient and recoverable heterogeneous catalyst for A3 and KA2 coupling reactions and [3 + 2] cycloaddition

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 96623-96634 ◽  
Author(s):  
A. Elhampour ◽  
M. Malmir ◽  
E. Kowsari ◽  
F. Boorboor ajdari ◽  
F. Nemati
Keyword(s):  
Hydrothermal Method ◽  
Heterogeneous Catalyst ◽  
Hollow Spheres ◽  
Reaction System ◽  
Core Shell ◽  
Coupling Reactions ◽  
Simple Hydrothermal Method ◽  
System P

An effective protocol for the fabrication of Ag-doped nano magnetic γ-Fe2O3@DA core–shell hollow spheres (h-Fe2O3@DA/Ag) by a simple hydrothermal method is demonstrated without any templates in the reaction system.

scholarly journals {CoII/III5} horseshoe and {NiII4} lacunary cubane coordination clusters: the isobutyrate/N-butyldiethanolamine reaction system

RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 100664-100669 ◽  
Author(s):  
Sebastian Schmitz ◽  
Kirill Yu. Monakhov ◽  
Jan van Leusen ◽  
Natalya V. Izarova ◽  
Volkmar Heß ◽  
...  
Keyword(s):  
Reaction System ◽  
Reaction Conditions ◽  
System P

A combination of carboxylate and diethanolamine-type ligands direct the formation of unusual discrete {NiII4} and {CoII/III5} structures under otherwise identical reaction conditions.

Dependence of Stability of Sr5(AsO4)3OH on pH Value

2014 ◽  
Vol 692 ◽  
pp. 229-233
Author(s):  
Yan Hua Huang ◽  
Zong Ning Li ◽  
Hui Qin ◽  
Zong Qiang Zhu ◽  
Yi Nian Zhu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Ph Value ◽  
Reaction System ◽  
Initial Solution ◽  
Alkaline Solutions ◽  
Solution Ph ◽  
Batch Dissolution ◽  
Initial Ph

The object of this work was to determine the solubility and stability of the synthetic Sr5(AsO4)3OH solid solution at 25°C and the different initial pHs (pH at 2, 6 and 9) by batch dissolution experiments. The results indicated that with the initial pH value of 2, 6 and 9, the reaction system reached equilibrium after 2880h, and by that time the pH value of the solution reached, 7.90, 8.74 and 8.27 respectively. The concentration of strontium and arsenic in the initial solution pH at 2 are higher than that of solutions pH at 6 and 9. While the concentration of strontium in neutral or alkaline solutions is low and stays unchanged.

Acceleration of Kirkendall effect processes in silicon nanospheres using magnetic fields

CrystEngComm ◽  
2018 ◽  
Vol 20 (6) ◽  
pp. 710-715 ◽  
Author(s):  
Yuecheng Bian ◽  
Wei Ding ◽  
Lin Hu ◽  
Zongwei Ma ◽  
Long Cheng ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Reaction System ◽  
Kirkendall Effect ◽  
Independent Parameter ◽  
Liquid Reaction ◽  
System P

We show that a magnetic field can act as an independent parameter to accelerate the Kirkendall effect in a liquid reaction system.

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