Cascaded Nanozyme system with High Reaction Selectivity by Substrate Screening and Channeling in a Microfluidic Device

2021 ◽  
Author(s):  
Qing Zhou ◽  
Hong Yang ◽  
Xinghua Chen ◽  
Yuan Xu ◽  
Dan Han ◽  
...  
Keyword(s):  
Microfluidic Device ◽  
Reaction Selectivity ◽  
High Reaction

Comparison between ozone and ferrate in oxidising geosmin and 2-MIB in water

2007 ◽  
Vol 55 (5) ◽  
pp. 117-125 ◽  
Author(s):  
G. Park ◽  
M. Yu ◽  
J. Go ◽  
E. Kim ◽  
H. Kim
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Removal Efficiency ◽  
Reaction Selectivity ◽  
Oxidation Rates ◽  
Treatment Processes ◽  
High Reaction ◽  
H2o2 Addition

Among the chemicals causing taste and odour (T&O) in drinking water, the most commonly identified and problematic ones are geosmin and 2-MIB (2-methylisoborneol). Since the reported odour thresholds of geosmin and 2-MIB are as low as 4 and 8.5 ng/L, respectively, they are not readily removed by conventional water treatment processes. In this study, ozone (O3) and ferrate (Fe(VI)) were applied to oxidise geosmin and 2-MIB. Their performances were compared in terms of removal efficiency of geosmin and 2-MIB. In the case of O3, removal efficiency of geosmin and 2-MIB ozonation at different initial O3 doses, H2O2/O3 ratios and water temperatures were evaluated. The oxidation rates of geosmin and 2-MIB by Fe(VI) were measured within pH 6–8. The effect of H2O2 addition was also evaluated. In summary, O3, especially with H2O2, could almost completely oxidise geosmin and 2-MIB, while Fe(VI) could not oxidise them more than 25% at any pH that was considered in this study. This was attributed to the structure of the organics and high reaction selectivity of Fe(VI). Further study should be conducted to find the reason of inhibition of oxidation by Fe(VI).

Highly Loading Metal Atoms on Graphdiyne for Efficient Nitrogen Fixation to Ammonia

2021 ◽  
Author(s):  
Yuliang Li ◽  
Yan Fang ◽  
Yurui Xue ◽  
Lan Hui ◽  
Xi Chen
Keyword(s):  
Nitrogen Fixation ◽  
Reaction Selectivity ◽  
Metal Atoms ◽  
High Reaction

Atomic catalysts have shown great potentials in the field of catalysis because of their maximum atomic utilization, high reaction selectivity and activity. Graphdiyne-based atomic catalysts have emerged as a new...

Novel Microfluidic Device Integrated with a Fluidic-Capacitor to Mimic Heart Beating for Generation of Functional Liver Organoids

2019 ◽  
Vol 139 (7) ◽  
pp. 209-216
Author(s):  
Jiaxu Wu ◽  
Yoshikazu Hirai ◽  
Ken-ichiro Kamei ◽  
Toshiyuki Tsuchiya ◽  
Osamu Tabata
Keyword(s):  
Microfluidic Device ◽  
Heart Beating ◽  
Liver Organoids

Pneumatically-driven Microfluidic Device for Evaluating Active Transport by Kinesin Motor Protein

2016 ◽  
Vol 136 (9) ◽  
pp. 384-389
Author(s):  
Kazuya Fujimoto ◽  
Hirofumi Shintaku ◽  
Hidetoshi Kotera ◽  
Ryuji Yokokawa
Keyword(s):  
Active Transport ◽  
Microfluidic Device ◽  
Motor Protein ◽  
Kinesin Motor

A microfluidic device with integrated impedance detection for λ-DNA

2003 ◽  
Vol 773 ◽  
Author(s):  
Myung-Il Park ◽  
Jonging Hong ◽  
Dae Sung Yoon ◽  
Chong-Ook Park ◽  
Geunbae Im
Keyword(s):  
Microfluidic Device ◽  
Electrochemical Impedance ◽  
Direct Detection ◽  
Full Potential ◽  
Label Free ◽  
Buffer Solution ◽  
Detection Systems ◽  
Significant Difference ◽  
Detection Of Biomolecules ◽  
Impedance Magnitude

AbstractThe large optical detection systems that are typically utilized at present may not be able to reach their full potential as portable analysis tools. Accurate, early, and fast diagnosis for many diseases requires the direct detection of biomolecules such as DNA, proteins, and cells. In this research, a glass microchip with integrated microelectrodes has been fabricated, and the performance of electrochemical impedance detection was investigated for the biomolecules. We have used label-free λ-DNA as a sample biomolecule. By changing the distance between microelectrodes, the significant difference between DW and the TE buffer solution is obtained from the impedance-frequency measurements. In addition, the comparison for the impedance magnitude of DW, the TE buffer, and λ-DNA at the same distance was analyzed.

A Microfluidic Device for Studying Mass Transfer Effects in Biomolecular Analysis

2002 ◽  
Author(s):  
Min Yue ◽  
Katherine Dunphy ◽  
Jerry Jenkins ◽  
Christopher Dames ◽  
Guanghua Wu ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Microfluidic Device ◽  
Transfer Effects ◽  
Biomolecular Analysis
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