Preparation of Conductive Silver Films from Electrophoretic Concentrates Stabilized with Sorbitan Monooleate and Sodium Bis(2-Ethylhexyl)Sulfosuccinate in n-Decane

2020 ◽  
Vol 82 (3) ◽  
pp. 295-302
Author(s):  
E. V. Poleeva ◽  
A. T. Arymbaeva ◽  
O. A. Bulavchenko ◽  
P. E. Plyusnin ◽  
M. G. Demidova ◽  
...  
Keyword(s):  
Sorbitan Monooleate ◽  
Silver Films

“Preparation of Single Crystalline Gold Films for ED Studies”

1972 ◽  
Vol 30 ◽  
pp. 634-635
Author(s):  
Joseph D. C. Peng
Keyword(s):  
Crystal Morphology ◽  
Diffraction Theory ◽  
Scattering Matrix ◽  
Vacuum Evaporation ◽  
Gold Films ◽  
Matrix Formulation ◽  
Silver Films ◽  
Single Crystalline ◽  
Grating Pattern ◽  
Stacking Disorder

The relative intensities of the ED spots in a cross-grating pattern can be calculated using N-beam electron diffraction theory. The scattering matrix formulation of N-beam ED theory has been previously applied to imperfect microcrystals of gold containing stacking disorder (coherent twinning) in the (111) crystal plane. In the present experiment an effort has been made to grow single-crystalline, defect-free (111) gold films of a uniform and accurately know thickness using vacuum evaporation techniques. These represent stringent conditions to be met experimentally; however, if a meaningful comparison is to be made between theory and experiment, these factors must be carefully controlled. It is well-known that crystal morphology, perfection, and orientation each have pronounced effects on relative intensities in single crystals.The double evaporation method first suggested by Pashley was employed with some modifications. Oriented silver films of a thickness of about 1500Å were first grown by vacuum evaporation on freshly cleaved mica, with the substrate temperature at 285° C during evaporation with the deposition rate at 500-800Å/sec.

Mercury spreading on silver films: interface characteristics

1998 ◽  
Vol 77 (5) ◽  
pp. 1427-1436
Author(s):  
L. Kaplan, A. Shehter, Y. Lereah, H.Ta
Keyword(s):  
Silver Films ◽  
Interface Characteristics

Optical Properties of Sputtered Silver Granular Films

2005 ◽  
Vol 480-481 ◽  
pp. 287-292 ◽  
Author(s):  
S.E. Paje ◽  
F. Teran ◽  
J.M. Riveiro ◽  
J. Llopis ◽  
M.A. García ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Optical Properties ◽  
Optical Absorption ◽  
Surface Morphology ◽  
Silver Clusters ◽  
Plasmon Excitation ◽  
Granular Films ◽  
Silver Films ◽  
Atomic Force ◽  
Atomic Force Micrographs

In this research we study optical absorption and morphology of silver films prepared with a sputtering method. Silver granular films are obtained on a glass substrate for films with thickness smaller than about 60 Å. Superficial silver clusters of around 100 nm in diameter are clearly seen in the atomic force micrographs. The absorption of these samples are characterized by plasmon excitation in the 450-650 nm spectral range, which differs from the known excitation of silver nanoparticles fabricated by different techniques. The optical absorption of silver granular films depend on sputtering conditions like substrate temperature or deposition rate and correlates with the surface morphology.

scholarly journals Stabilisation of Lutein and Lutein Esters with Polyoxyethylene Sorbitan Monooleate, Medium-Chain Triglyceride Oil and Lecithin

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 500
Author(s):  
Zala Gombač ◽  
Ilja Gasan Osojnik Črnivec ◽  
Mihaela Skrt ◽  
Katja Istenič ◽  
Andreja Knez Knafelj ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Medium Chain Triglyceride ◽  
Storage Conditions ◽  
Sorbitan Monooleate ◽  
Medium Chain ◽  
Poorly Soluble

Lutein is a challenging compound to incorporate into food, as it is poorly soluble and unstable in aqueous solutions. In this study, the aim was to prepare stable encapsulates of lutein and lutein esters using feasible and straightforward techniques. Fine suspensions based on polyoxyethylene sorbitan monooleate and medium-chain triglyceride oil micelle-like units with 3.45% lutein esters or 1.9% lutein equivalents provided high encapsulation efficiencies of 79% and 83%, respectively. Lutein encapsulated in fine suspensions showed superior stability, as 86% was retained within the formulation over 250 days at 25 °C in the dark. Under the same storage conditions, only 38% of lutein remained in corresponding formulations. Higher encapsulation efficiencies were achieved with lecithin emulsions, at up to 99.3% for formulations with lutein, and up to 91.4% with lutein esters. In lecithin emulsions that were stored for 250 days, 17% and 80% of lutein and lutein esters, respectively, were retained within the formulations.

Reduction of linoleic acid inhibition in production of conjugated linoleic acid byPropionibacterium freudenreichiissp.shermanii

2001 ◽  
Vol 47 (8) ◽  
pp. 735-740 ◽  
Author(s):  
A Rainio ◽  
M Vahvaselkä ◽  
T Suomalainen ◽  
S Laakso
Keyword(s):  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Inhibitory Effect ◽  
Propionibacterium Freudenreichii ◽  
Growth Inhibitory Effect ◽  
Sorbitan Monooleate ◽  
Whey Permeate ◽  
Growth Inhibitory ◽  
De Man ◽  
Sufficient Concentration

A method for the production of conjugated linoleic acid (CLA) from linoleic acid (LA) using growing cultures of Propionibacterium freudenreichii ssp. shermanii JS was developed. The growth inhibitory effect of LA was eliminated by dispersing it in a sufficient concentration of polyoxyethylene sorbitan monooleate detergent. For the whey permeate medium used, the optimum LA:detergent ratio was 1:15 (w/w). As a result, the cultures tolerated at least 1000 µg·mL–1LA, which was converted to CLA with 57%–87% efficiency. The cis-9, trans-11 and trans-9, cis-11 isomers constituted 85%–90% of the CLA produced. The feasibility of the method was demonstrated also in de Man – Rogosa–Sharpe (MRS) broth.Key words: conjugated linoleic acid, linoleic acid, Propionibacterium freudenreichii ssp. shermanii.

Auger analysis of thick silver films and of silver layers grown on copper

1981 ◽  
Vol 82 (2) ◽  
pp. 165-177 ◽  
Author(s):  
Y. Namba ◽  
R.W. Vook
Keyword(s):  
Auger Analysis ◽  
Silver Films

Silver Film Atomic Oxygen Sensors: Further Evidence for Utility as an Atmospheric Probe

1974 ◽  
Vol 52 (21) ◽  
pp. 2174-2175 ◽  
Author(s):  
W. R. Henderson
Keyword(s):  
Atomic Oxygen ◽  
Silver Film ◽  
Oxygen Sensors ◽  
Rate Of Change ◽  
Upper Atmosphere ◽  
Silver Films

Further evidence for the utility of thin silver films as detectors of atomic oxygen in the upper atmosphere is given. Measurements show that under prescribed conditions no correction for rate of oxidation or rate of change of oxidation is necessary.

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