scholarly journals Photobiocatalytic Oxyfunctionalization with High Reaction Rate using a Baeyer–Villiger Monooxygenase from Burkholderia xenovorans in Metabolically Engineered Cyanobacteria

ACS Catalysis ◽  
2021 ◽  
pp. 66-72
Author(s):  
Elif Erdem ◽  
Lenny Malihan-Yap ◽  
Leen Assil-Companioni ◽  
Hanna Grimm ◽  
Giovanni Davide Barone ◽  
...  
Keyword(s):  
Reaction Rate ◽  
Burkholderia Xenovorans ◽  
High Reaction ◽  
High Reaction Rate

Closed Loop Controlled ER-Actuator

1996 ◽  
Vol 10 (23n24) ◽  
pp. 2867-2876 ◽  
Author(s):  
C. WOLFF
Keyword(s):  
Reaction Rate ◽  
Closed Loop ◽  
Dynamic Behaviour ◽  
Volume Flow ◽  
Hydraulic Systems ◽  
High Reaction ◽  
Er Fluids ◽  
High Reaction Rate

The results of the investigation regarding the suitability of ERF when applied in hydraulics have shown so far that constructing electrorheological flow resistors for the control of pressure and volume flow is possible in principle. One of the main advantages when using the ER-technology in hydraulic systems can be seen in the high reaction rate of the ER-effect. The investigations presented in this article document the dynamic qualities of ER-fluids by means of a practical exploitation for the control of a cylinder actuator. Due to the particular possibilities for design of ER-control resistors a compact cylinder has resulted which differs considerably from traditional cylinder actuators in its construction and dynamic behaviour.

scholarly journals Green synthesis of Au nanoparticles using an aqueous extract ofStachys lavandulifoliaand their catalytic performance for alkyne/aldehyde/amine A3coupling reactions

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38186-38195 ◽  
Author(s):  
Hojat Veisi ◽  
Maliheh Farokhi ◽  
Mona Hamelian ◽  
Saba Hemmati
Keyword(s):  
Green Synthesis ◽  
Metal Nanoparticles ◽  
Aqueous Extract ◽  
Reaction Rate ◽  
Au Nanoparticles ◽  
Catalytic Performance ◽  
High Reaction ◽  
High Reaction Rate

High reaction rate and easy availability make green synthesis of metal nanoparticles noticeable.

Catalytic antibody light chain capable of cleaving a chemokine receptor CCR-5 peptide with a high reaction rate constant

2004 ◽  
Vol 86 (2) ◽  
pp. 217-225 ◽  
Author(s):  
Yukie Mitsuda ◽  
Emi Hifumi ◽  
Kumi Tsuruhata ◽  
Hiroko Fujinami ◽  
Naoki Yamamoto ◽  
...  
Keyword(s):  
Rate Constant ◽  
Chemokine Receptor ◽  
Light Chain ◽  
Reaction Rate ◽  
Reaction Rate Constant ◽  
Catalytic Antibody ◽  
High Reaction ◽  
High Reaction Rate

scholarly journals High NH3-SCR reaction rate with low dependence on O2 partial pressure over Al-rich Cu–*BEA zeolite

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10381-10384
Author(s):  
Yusuke Ohata ◽  
Takeshi Ohnishi ◽  
Takahiko Moteki ◽  
Masaru Ogura
Keyword(s):  
Partial Pressure ◽  
Reaction Rate ◽  
Reaction Condition ◽  
Bea Zeolite ◽  
Nh3 Scr ◽  
High Reaction ◽  
O2 Partial Pressure ◽  
Zeolite P ◽  
High Reaction Rate

It was revealed that Al-rich Cu–*BEA zeolite exhibit high reaction rate for NH3-SCR at 473 K in low PO2 reaction condition.

Reproducible preparation of Au/TS-1 with high reaction rate for gas phase epoxidation of propylene

2012 ◽  
Vol 287 ◽  
pp. 178-189 ◽  
Author(s):  
Wen-Sheng Lee ◽  
M. Cem Akatay ◽  
Eric A. Stach ◽  
Fabio H. Ribeiro ◽  
W. Nicholas Delgass
Keyword(s):  
Gas Phase ◽  
Reaction Rate ◽  
Epoxidation Of Propylene ◽  
High Reaction ◽  
High Reaction Rate

A ruthenium-based plasmonic hybrid photocatalyst for aqueous carbon dioxide conversion with a high reaction rate and selectivity

2019 ◽  
Vol 7 (29) ◽  
pp. 17254-17260 ◽  
Author(s):  
Hwiseok Jun ◽  
Shinyoung Choi ◽  
Moon Young Yang ◽  
Yoon Sung Nam
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Reaction Rate ◽  
Ruthenium Complex ◽  
Low Ph ◽  
Carbon Dioxide Conversion ◽  
High Reaction ◽  
Hybrid Photocatalyst ◽  
High Reaction Rate

A cis-ruthenium complex fixed on a plasmonic Au/TiO2 nanostructure efficiently converts CO2 into formic acid even in low pH water.

scholarly journals Sequential deiodination of thyroxine in rat liver homogenate

1978 ◽  
Vol 174 (1) ◽  
pp. 221-229 ◽  
Author(s):  
T J Visser ◽  
D Fekkes ◽  
R Docter ◽  
G Hennemann
Keyword(s):  
Rat Liver ◽  
Reaction Rate ◽  
Liver Homogenate ◽  
Ph Optimum ◽  
High Reaction ◽  
High Reaction Rate

Rat liver homogenate was incubated at 37 degrees C with thyroxine, 3,3′,5-tri-iodothyronine, 3,3′,5′-tri-iodothyronine or 3,3′-di-iodothyronine. The degradation or accumulation of these compounds was measured by specific radioimmunoassays. (1) Production of 3,3′,5-tri-iodothyronine from thyroxine was highest at pH 6.0–6.5 and was markedly stimulated by the addition of dithiothreitol and effectively inhibited in the presence of 6-propyl-2-thiouracil. (2) Accumulation of 3,3′,5′-tri-iodothyronine on incubation of thyroxine with homogenate was only observed above pH 8.5. Otherwise the product was converted into 3,3′-di-iodothyronine too rapidly to allow its measurement. By measuring 3,3′-di-iodothyronine it was deduced that 5-deiodination of thyroxine was most effective at approx. pH 8.0. Dithiothreitol powerfully stimulated this reaction and 6-propyl-2-thiouracil strongly inhibited. (3) Monodeiodination of the tyrosine ring of 3,3′,5-tri-iodothyronine was the slowest reaction, was optimal at pH 8.0 and was less affected by dithiothreitol and 6-propyl-2-thiouracil than the above reactions. (4) 5′-Deiodination of 3,3′,5′-tri-iodothyronine was extremely rapid, with a pH optimum probably at about 6.5. Owing to the high reaction rate under the conditions used it was not possible to assess the effects of dithiothreitol and 6-propyl-2-thiouracil.

scholarly journals Fabrication of Colorimetric Textile Sensor Based on Rhodamine Dye for Acidic Gas Detection

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 431 ◽  
Author(s):  
Young Ki Park ◽  
Byeong M. Oh ◽  
A Ra Jo ◽  
Ji Hyeon Han ◽  
Jee Young Lim ◽  
...  
Keyword(s):  
Reaction Rate ◽  
Color Change ◽  
Ph Sensitivity ◽  
Gas Detection ◽  
Textile Sensors ◽  
Printed Sensors ◽  
Textile Sensor ◽  
Rhodamine Dye ◽  
Strong Acids ◽  
High Reaction Rate

For the immediate detection of gaseous strong acids, it is advantageous to employ colorimetric textile sensors based on halochromic dyes. Thus, a rhodamine dye with superior pH sensitivity and high thermal stability was synthesized and incorporated in nylon 6 and polyester fabrics to fabricate textile sensors through dyeing and printing methods. The spectral properties and solubility of the dye were examined; sensitivity to acidic gas as well as durability and reversibility of the fabricated textile sensors were investigated. Both dyed and printed sensors exhibited a high reaction rate and distinctive color change under the acidic condition owing to the high pH sensitivity of the dye. In addition, both sensors have outstanding durability and reversibility after washing and drying.

THE EFFECT OF VISCOSITY ON THE PHASE SEPARATION DYNAMICS OF BINARY IMMISCIBLE MIXTURE COUPLED WITH REVERSIBLE REACTION

2010 ◽  
Vol 21 (12) ◽  
pp. 1479-1488 ◽  
Author(s):  
HUI LI ◽  
HONG LIU ◽  
ZHONG-YUAN LU ◽  
QIN WANG ◽  
CHIA-CHUNG SUN
Keyword(s):  
Phase Separation ◽  
Reaction Rate ◽  
Domain Size ◽  
Reaction Rates ◽  
Two Dimensions ◽  
Domain Growth ◽  
Reversible Reaction ◽  
Growth Exponent ◽  
High Reaction ◽  
Immiscible Mixture

The phase-separating system coupled with a simple reversible reaction A ⇌ B in a binary immiscible mixture due to critical quench is investigated with Lowe-Andersen temperature controlling method in two dimensions. The system viscosity strongly influences the asymptotic relationship between the excess energy (characterizing the domain growth) and the reaction rate. The competition between different dynamic factors results in the steady states with characteristic domain sizes. For low viscosities, the domain growth exponent approximates to 0.4 in the cases of low reaction rates and to 0.25 in the cases of high reaction rates, which shows the suppressing effects of high reversible reaction rates on the phase separation. However, in the cases of high viscosities, we find a 0.25 scaling with low reaction rates but a 0.5 scaling with high reaction rates. In these cases, high viscosities prevent mass transport in the binary mixture, consequently result in much smaller steady state domain sizes. Therefore the domain sizes with high viscosities and low reaction rates are very similar to those with low viscosities and high reaction rates, and the dependence of domain sizes on the reaction rates are similar. For the high-viscosity systems with high reaction rates, the domain sizes are predominantly controlled by the reaction rates, therefore we can observe stronger dependence of domain size on the reaction rate.

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