The enhanced enzymatic performance of carbonic anhydrase on the reaction rate between CO 2 and aqueous solutions of sterically hindered amines

2020 ◽  
Vol 10 (5) ◽  
pp. 925-937
Author(s):  
Neslisah Cihan ◽  
Ozge Yuksel Orhan
Keyword(s):  
Carbonic Anhydrase ◽  
Aqueous Solutions ◽  
Reaction Rate ◽  
Sterically Hindered ◽  
Hindered Amines

Selective absorption of H2S from CO2 using sterically hindered amines at high pressure

2019 ◽  
Vol 37 (15) ◽  
pp. 1825-1829
Author(s):  
Hui Li ◽  
Lulu Li ◽  
Jilei Xu ◽  
Yuntao Li
Keyword(s):  
High Pressure ◽  
Selective Absorption ◽  
Sterically Hindered ◽  
Hindered Amines

scholarly journals A Flexible Synthesis of 68Ga-Labeled Carbonic Anhydrase IX (CAIX)-Targeted Molecules via CBT/1,2-Aminothiol Click Reaction

Molecules ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 23 ◽  
Author(s):  
Kuo-Ting Chen ◽  
Kevin Nguyen ◽  
Christian Ieritano ◽  
Feng Gao ◽  
Yann Seimbille
Keyword(s):  
Carbonic Anhydrase ◽  
Half Life ◽  
Reaction Rate ◽  
Click Reaction ◽  
Tumor Hypoxia ◽  
Carbonic Anhydrase Ix ◽  
Reaction Conditions ◽  
Positron Emitter ◽  
Radiochemical Yields ◽  
Gallium 68

We herein describe a flexible synthesis of a small library of 68Ga-labeled CAIX-targeted molecules via an orthogonal 2-cyanobenzothiazole (CBT)/1,2-aminothiol click reaction. Three novel CBT-functionalized chelators (1–3) were successfully synthesized and labeled with the positron emitter gallium-68. Cross-ligation between the pre-labeled bifunctional chelators (BFCs) and the 1,2-aminothiol-acetazolamide derivatives (8 and 9) yielded six new 68Ga-labeled CAIX ligands with high radiochemical yields. The click reaction conditions were optimized to improve the reaction rate for applications with short half-life radionuclides. Overall, our methodology allows for a simple and efficient radiosynthetic route to produce a variety of 68Ga-labeled imaging agents for tumor hypoxia.

scholarly journals Photoreduction of Cr(VI) Ions in Aqueous Solutions by UV/ Photocatalytic Processes

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Chih Ming Ma ◽  
Yung Shuen Shen ◽  
Po Hsiang Lin
Keyword(s):  
Aqueous Solutions ◽  
Reaction Rate ◽  
Removal Rate ◽  
Experimental Results ◽  
Order Kinetic ◽  
Solution Ph ◽  
Relationship Of ◽  
The Relationship ◽  
Photocatalytic Processes ◽  
Order Kinetic Equation

This study discussed the photoreduction of Cr(VI) ions in aqueous solutions by UV/TiO2photocatalytic processes under various operational factors. Experimental results showed that the removal rate of Cr(VI) increased with decreasing solution pH values and with increasing dosages of organic compounds, indicating that the recombination rate of electrons and h+can be retarded in the reaction systems by the addition of the scavenger, thus raising the reaction rate of Cr(VI). The relationship of the chemical reaction rate of Cr(VI), TiO2dosage, and changes of Cr(VI) concentration was expressed by the pseudo-first-order kinetic equation. Comparing the experimental results of two different doping metals in modified TiO2photoreduction systems, the removal rate of Cr(VI) by the Ag/TiO2process is larger, possibly because the electron transferring ability of Ag is superior to that of Cu. However, the photoreduction rates of Cr(VI) by modified UV/TiO2processes are worse than those by a nonmodified commercial UV/TiO2process.

Impregnation of palm shell-based activated carbon with sterically hindered amines for CO2 adsorption

2013 ◽  
Vol 219 ◽  
pp. 558-564 ◽  
Author(s):  
C.S. Lee ◽  
Y.L. Ong ◽  
M.K. Aroua ◽  
W.M.A.W. Daud
Keyword(s):  
Activated Carbon ◽  
Co2 Adsorption ◽  
Palm Shell ◽  
Sterically Hindered ◽  
Hindered Amines

Palladium(II)-Catalyzed C(sp2)–H Carbonylation of Sterically Hindered Amines with Carbon Monoxide

2018 ◽  
Vol 20 (20) ◽  
pp. 6530-6533 ◽  
Author(s):  
Xiu-Fen Cheng ◽  
Tao Wang ◽  
Yan Li ◽  
Yun Wu ◽  
Jie Sheng ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Sterically Hindered ◽  
Hindered Amines

Absorption rates of carbon dioxide and hydrogen sulphide in sterically hindered amines

1986 ◽  
Vol 41 (2) ◽  
pp. 405-408 ◽  
Author(s):  
A.P. Zioudas ◽  
Z. Dadach
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulphide ◽  
Sterically Hindered ◽  
Hindered Amines

Functional derivatives of sterically hindered amines. 1. Glycidyl compounds

1989 ◽  
Vol 27 (1) ◽  
pp. 231-237 ◽  
Author(s):  
Jozef Lustoň ◽  
František Vašš
Keyword(s):  
Functional Derivatives ◽  
Sterically Hindered ◽  
Hindered Amines ◽  
Derivatives Of

Reaction kinetics of the absorption of carbon dioxide (CO 2 ) in aqueous solutions of sterically hindered secondary alkanolamines using the stopped-flow technique

2017 ◽  
Vol 170 ◽  
pp. 16-25 ◽  
Author(s):  
Bin Liu ◽  
Xiao Luo ◽  
Hongxia Gao ◽  
Raphael Idem ◽  
Paitoon Tontiwachwuthikul ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Aqueous Solutions ◽  
Reaction Kinetics ◽  
Stopped Flow ◽  
Sterically Hindered ◽  
Kinetics Of

Kinetic evaluation of sterically hindered amines under partial oxy‐combustion conditions

2020 ◽  
Vol 95 (7) ◽  
pp. 1858-1864 ◽  
Author(s):  
Sara Camino ◽  
Fernando Vega ◽  
Luz M Gallego Fernández ◽  
Mercedes Cano ◽  
José A Camino ◽  
...  
Keyword(s):  
Kinetic Evaluation ◽  
Sterically Hindered ◽  
Hindered Amines
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