Effect of Bis-(3-sulfopropyl) Disulfide and Chloride Ions on the Localized Electrochemical Deposition of Copper Microstructures

2017 ◽  
Vol 164 (7) ◽  
pp. D419-D424 ◽  
Author(s):  
Fuliang Wang ◽  
Yijie Li ◽  
Hu He ◽  
Yan Wang ◽  
Wenhui Zhu ◽  
...  
Keyword(s):  
Electrochemical Deposition ◽  
Chloride Ions ◽  
Sulfopropyl Disulfide

Effect of Chloride Ions on the Adsorption of 3-Mercapto-1-propanesulfonic acid and Bis(3-sulfopropyl)-disulfide on a Au(111) Surface

Langmuir ◽  
2010 ◽  
Vol 26 (16) ◽  
pp. 13263-13271 ◽  
Author(s):  
Yung-Fang Liu ◽  
Yuh-Lang Lee ◽  
Yaw-Chia Yang ◽  
Zheng-Yan Jian ◽  
Wei-Ping Dow ◽  
...  
Keyword(s):  
Chloride Ions ◽  
Sulfopropyl Disulfide

Role of Chloride Ions on Electrochemical Deposition of ZnO Nanowire Arrays from O2Reduction

2007 ◽  
Vol 111 (45) ◽  
pp. 16706-16711 ◽  
Author(s):  
Ramon Tena-Zaera ◽  
Jamil Elias ◽  
Gillaume Wang ◽  
Claude Lévy-Clément
Keyword(s):  
Electrochemical Deposition ◽  
Chloride Ions ◽  
Nanowire Arrays ◽  
Zno Nanowire ◽  
Zno Nanowire Arrays

scholarly journals Fabrication and optimization of three-dimensional metamaterials for terahertz energy-harvesting

2018 ◽  
Author(s):  
◽  
Shendu Yang
Keyword(s):  
Adsorption Mechanism ◽  
Three Dimensional ◽  
Peak Frequency ◽  
Chloride Ions ◽  
Copper Electrodeposition ◽  
Chemical Additives ◽  
Copper Electrolyte ◽  
Bottom Side ◽  
Sulfopropyl Disulfide ◽  
Electromagnetic Performance

Metamaterials typically consist of metallic and dielectric repeating structures. Electrodeposition of copper is the preferred approach to fabricating the metallic part of the metamaterials of interest in this study. The highly-variant topography requires chemical additives, like chloride ions, 3-mercapto-1-propanesulfonic acid (MPSA), polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) to enhance bottom-up superfilling while maintaining terrace flatness. This study focuses on both experimental and computational investigations of the degradation potential of the additives and their adsorption mechanism in a highly-acidic copper electrolyte in order to optimally parameterize the copper electrodeposition process. Results show Cl-MPSAPEG-PVP additives perform well, but substitution of PVP with Janus Green B provides better terrace leveling. Additionally, NMR data show a quick and complete conversion of MPSA to bis(3-sulfopropyl) disulfide (SPS) in the acidic copper bath. Finally, FEM simulations further show that the accelerator species may initially accumulate and be transported vertically until overplating, whereby they are transported laterally. Our study also show that the electromagnetic performance of metamaterial is dependent on SU-8 related parameters, including pillar height, bottom side length and spacing between pillars. The metamaterial geometry is successfully optimized and it can localize the surface plasmon with the peak frequency of 1.2 THz to the nano-antenna and the highest terahertz absorption is 30%.

Junction of the Epithelium and Lamina Propria of the Bovine Rumen Mucosa

1967 ◽  
Vol 25 ◽  
pp. 68-69
Author(s):  
Al W. Stinson
Keyword(s):  
Osmium Tetroxide ◽  
Squamous Epithelium ◽  
Short Chain Fatty Acids ◽  
Chloride Ions ◽  
Fermentation Products ◽  
Ruminant Species ◽  
Protective Shield ◽  
Stratified Squamous Epithelium ◽  
Lead Hydroxide ◽  
Acetic Acids

The stratified squamous epithelium which lines the ruminal compartment of the bovine stomach performs at least three important functions. (1) The upper keratinized layer forms a protective shield against the rough, fibrous, constantly moving ingesta. (2) It is an organ of absorption since a number of substances are absorbed directly through the epithelium. These include short chain fatty acids, potassium, sodium and chloride ions, water, and many others. (3) The cells of the deeper layers metabolize butyric acid and to a lesser extent propionic and acetic acids which are the fermentation products of rumen digestion. Because of the functional characteristics, this epithelium is important in the digestive process of ruminant species which convert large quantities of rough, fibrous feed into energy.Tissue used in this study was obtained by biopsy through a rumen fistula from clinically healthy, yearling holstein steers. The animals had been fed a typical diet of hay and grain and the ruminal papillae were fully developed. The tissue was immediately immersed in 1% osmium tetroxide buffered to a pH of 7.4 and fixed for 2 hrs. The tissue blocks were embedded in Vestapol-W, sectioned with a Porter-Blum microtome with glass knives and stained with lead hydroxide. The sections were studied with an RCA EMU 3F electron microscope.

Factors Influencing the Separation of Glu-Plasminogen Affinity Forms I and II by Affinity Chromatography

1984 ◽  
Vol 52 (03) ◽  
pp. 347-349 ◽  
Author(s):  
Daan W Traas ◽  
Bep Hoegee-de Nobel ◽  
Willem Nieuwenhuizen
Keyword(s):  
Affinity Chromatography ◽  
Dissociation Constants ◽  
Ionic Composition ◽  
Chloride Ions ◽  
Factors Influencing ◽  
Two Factors ◽  
Human Plasminogen

SummaryNative human plasminogen, the proenzyme of plasmin (E. C. 3.4.21.7) occurs in blood in two well defined forms, affinity forms I and II. In this paper, the feasibility of separating these forms of human native plasminogen by affinity chromatography, is shown to be dependent on two factors: 1) the ionic composition of the buffer containing the displacing agent: buffers of varying contents of sodium, Tris, phosphate and chloride ions were compared, and 2) the type of adsorbent. Two adsorbents were compared: Sepharose-lysine and Sepharose-bisoxirane-lysine. Only in the phosphate containing buffers, irrespective of the type of adsorbent, the affinity forms can be separated. The influence of the adsorbent can be accounted for by a large difference in dissociation constants of the complex between plasminogen and the immobilized lysine.

Sign in / Sign up

Export Citation Format

Share Document