Simultaneous electrokinetic stacking and separation of anionic and cationic species on a paper fluidic channel

Lab on a Chip ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 845-850 ◽  
Author(s):  
Lei Liu ◽  
Mao-Rong Xie ◽  
Yu-Zhu Chen ◽  
Zhi-Yong Wu
Keyword(s):  
Fluidic Channel ◽  
Amplification Effect ◽  
Cationic Species ◽  
Field Amplification ◽  
Electrokinetic Stacking

Both anionic and cationic species can be simultaneously stacked and separated on a paper fluidic channel based on field amplification effect.

Highly efficient sample stacking by enhanced field amplification on a simple paper device

Lab on a Chip ◽  
2016 ◽  
Vol 16 (18) ◽  
pp. 3460-3465 ◽  
Author(s):  
Biao Ma ◽  
Yi-Zhen Song ◽  
Ji-Cheng Niu ◽  
Zhi-Yong Wu
Keyword(s):  
Sample Stacking ◽  
Highly Efficient ◽  
Field Amplification ◽  
Paper Device ◽  
Signal Improvement ◽  
Electrokinetic Stacking ◽  
Analytical Device

Electrokinetic stacking based on field amplification was firstly introduced to a paper-based analytical device, and over 1000-fold signal improvement was achieved.

scholarly journals Simultaneous electrokinetic concentration and separation of proteins on a paper-based analytical device

RSC Advances ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 4011-4016 ◽  
Author(s):  
Zhi-Yong Wu ◽  
Biao Ma ◽  
Song-Fang Xie ◽  
Kun Liu ◽  
Fang Fang
Keyword(s):  
Amplification Effect ◽  
Field Amplification ◽  
Separation Of Proteins ◽  
Analytical Device

Electrokinetic concentration and separation of proteins was achieved simultaneously on a paper based analytical device based on the field amplification effect.

Two orders of magnitude electrokinetic stacking of proteins in one minute on a simple paper fluidic channel

2017 ◽  
Vol 9 (18) ◽  
pp. 2703-2709 ◽  
Author(s):  
Biao Ma ◽  
Song-Fang Xie ◽  
Lei Liu ◽  
Fang Fang ◽  
Zhi-Yong Wu
Keyword(s):  
Bovine Hemoglobin ◽  
Fluidic Channel ◽  
Model Protein ◽  
Stacking Effect ◽  
Electrokinetic Stacking ◽  
Analytical Device

New insights were brought into the field amplified stacking effect implemented on a paper-based analytical device, and a model protein of bovine hemoglobin was 150-fold stacked within 60 sec.

scholarly journals Field amplification effect of resonant magnetic perturbation on ion orbits in tokamak plasma

2021 ◽  
Vol 70 (9) ◽  
pp. 095207-095207
Author(s):  
Su Chun-Yan ◽  
◽  
Mou Mao-Lin ◽  
Chen Shao-Yong ◽  
Guo Wen-Ping ◽  
...  
Keyword(s):  
Tokamak Plasma ◽  
Magnetic Perturbation ◽  
Amplification Effect ◽  
Field Amplification

The amplification effect of group-shared emotion

2017 ◽  
Vol 25 (4) ◽  
pp. 662 ◽  
Author(s):  
Zuo-Jun WANG ◽  
Yi-Ru HOU ◽  
Yi KUANG ◽  
Hui-Yi TANG ◽  
Zhen-Zhen ZHAO ◽  
...  
Keyword(s):  
Amplification Effect

Maize Stalk as Natural Ion Exchanger for Hazardous Pollutants

2017 ◽  
Vol 68 (8) ◽  
pp. 1726-1731
Author(s):  
Nicoleta Mirela Marin ◽  
Luoana Florentina Pascu ◽  
Ioana Stanculescu ◽  
Ovidiu Iordache ◽  
Denisa Jianu ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Kinetic Models ◽  
High Selectivity ◽  
Ion Exchanger ◽  
Exchange Equilibrium ◽  
Waste Waters ◽  
Cationic Species ◽  
Hazardous Pollutants ◽  
Tailing Ponds

This paper recommends maize stalk as a cheap natural ion exchanger. Ion exchange equilibrium was studied using thermodynamic and kinetic models. The results showed a high selectivity towards cationic species of antimony (III), molybdenum (VI), lead (II) and arsenium (III). Waste waters and sediments from tailing ponds samples were analysed.

scholarly journals Microfluidic resonators with two parallel channels for independent sample loading and effective density tuning

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Jungchul Lee ◽  
Faheem Khan ◽  
Thomas Thundat ◽  
Bong Jae Lee
Keyword(s):  
Silicon Nitride ◽  
Potassium Hydroxide ◽  
Laser Doppler Vibrometer ◽  
Effective Density ◽  
Fluidic Channel ◽  
Custom Made ◽  
Sample Density ◽  
Polysilicon Layer ◽  
Parallel Channels ◽  
First Time

ABSTRACTThis paper reports doubly clamped microchannel embedded resonators with two independent and parallel channels integrated for effective sample density tuning for the first time. With the aid of such a unique design, each fluidic channel can be independently accessed thus different liquid samples can be loaded simultaneously. The proposed fluidic resonators are batch fabricated by depositing silicon nitride, polysilicon, and silicon nitride sequentially on top of a set of 4-inch silicon wafers and sacrificing the middle polysilicon layer with potassium hydroxide (KOH). The sacrificial process defines two parallel channels and releases doubly clamped beam resonators simultaneously. In addition, an off-chip vacuum clamp with optical and fluidic access is custom-made to operate each resonator with enhanced quality factor. The microfluidic resonators mounted on the custom vacuum clamp are thoroughly characterized with a laser Doppler vibrometer and used to measure the effective sample density ranging from 395 to 998 kg/m3.

Effect of the alkaline cation size on the conductivity in gel polymer electrolytes and their influence on photo electrochemical solar cells

2016 ◽  
Vol 18 (16) ◽  
pp. 10873-10881 ◽  
Author(s):  
T. M. W. J. Bandara ◽  
H. D. N. S. Fernando ◽  
M. Furlani ◽  
I. Albinsson ◽  
M. A. K. L. Dissanayake ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Electrolytes ◽  
Dye Sensitized Solar Cells ◽  
Gel Polymer Electrolytes ◽  
Dye Sensitized ◽  
Cationic Species ◽  
Profound Influence ◽  
Alkaline Cation ◽  
Cation Size ◽  
Sensitized Solar Cells

The nature and concentration of cationic species in the electrolyte exert a profound influence on the efficiency of nanocrystalline dye-sensitized solar cells (DSSCs).

scholarly journals Changes in U.S. East Coast Cyclone Dynamics with Climate Change

2015 ◽  
Vol 28 (2) ◽  
pp. 468-484 ◽  
Author(s):  
Christopher G. Marciano ◽  
Gary M. Lackmann ◽  
Walter A. Robinson
Keyword(s):  
Climate Change ◽  
Boundary Conditions ◽  
Potential Vorticity ◽  
East Coast ◽  
The United States ◽  
Sea Level Pressure ◽  
Cyclone Intensity ◽  
Field Amplification ◽  
Lateral Boundary Conditions ◽  
Relative Potential

Abstract Previous studies investigating the impacts of climate change on extratropical cyclones have primarily focused on changes in the frequency, intensity, and distribution of these events. Fewer studies have directly investigated changes in the storm-scale dynamics of individual cyclones. Precipitation associated with these events is projected to increase with warming owing to increased atmospheric water vapor content. This presents the potential for enhancement of cyclone intensity through increased lower-tropospheric diabatic potential vorticity generation. This hypothesis is tested using the Weather Research and Forecasting Model to simulate individual wintertime extratropical cyclone events along the United States East Coast in present-day and future thermodynamic environments. Thermodynamic changes derived from an ensemble of GCMs for the IPCC Fourth Assessment Report (AR4) A2 emissions scenario are applied to analyzed initial and lateral boundary conditions of observed strongly developing cyclone events, holding relative humidity constant. The perturbed boundary conditions are then used to drive future simulations of these strongly developing events. Present-to-future changes in the storm-scale dynamics are assessed using Earth-relative and storm-relative compositing. Precipitation increases at a rate slightly less than that dictated by the Clausius–Clapeyron relation with warming. Increases in cyclone intensity are seen in the form of minimum sea level pressure decreases and a strengthened 10-m wind field. Amplification of the low-level jet occurs because of the enhancement of latent heating. Storm-relative potential vorticity diagnostics indicate a strengthening of diabatic potential vorticity near the cyclone center, thus supporting the hypothesis that enhanced latent heat release is responsible for this regional increase in future cyclone intensity.

New chemistry of olefin complexes of platinum(ii) unravelled by basic conditions: synthesis and properties of elusive cationic species

2008 ◽  
pp. 5313 ◽  
Author(s):  
Carmen R. Barone ◽  
Michele Benedetti ◽  
Vita M. Vecchio ◽  
Francesco P. Fanizzi ◽  
Luciana Maresca ◽  
...  
Keyword(s):  
Cationic Species
Sign in / Sign up

Export Citation Format

Share Document