Electrochemical deposition of macroporous platinum, palladium and cobalt films using polystyrene latex sphere templates

2000 ◽  
pp. 1671-1672 ◽  
Author(s):  
Philip N. Bartlett ◽  
Peter R. Birkin ◽  
Mohamed A. Ghanem
Keyword(s):  
Electrochemical Deposition ◽  
Polystyrene Latex ◽  
Latex Sphere ◽  
Cobalt Films

The Electrochemical Deposition of Nanostructured Cobalt Films from Lyotropic Liquid Crystalline Media

2001 ◽  
Vol 148 (2) ◽  
pp. C119 ◽  
Author(s):  
Philip N. Bartlett ◽  
Peter N. Birkin ◽  
Mohamed A. Ghanem ◽  
Peter de Groot ◽  
M. Sawicki
Keyword(s):  
Electrochemical Deposition ◽  
Liquid Crystalline ◽  
Cobalt Films

Latex Sphere Retention by Microporous Membranes in Liquid Filtration

1993 ◽  
Vol 36 (1) ◽  
pp. 26-36 ◽  
Author(s):  
Jae-Keun Lee ◽  
Benjamin Liu ◽  
Kenneth Rubow
Keyword(s):  
Test System ◽  
Polystyrene Latex ◽  
Microporous Membranes ◽  
Cake Filtration ◽  
Hydrophobic Membrane ◽  
Worst Case ◽  
Liquid Filtration ◽  
Filter Surface ◽  
Filter Performance ◽  
Latex Sphere

An experimental study of particulate matter retention by microporous membranes during liquid filtration has been conducted using 0.1, 0.22, 0.45, and 0.65-μm-rated hydrophilic and hydrophobic membrane filters. Retention measurements have been made with polystyrene latex spheres using an automated filter test system and a laser particle counter to measure the upstream and downstream particle concentration. Particle filtration during loading tests was found to begin with a sieving dominant regime followed by a transition regime and a cake filtration regime as particles accumulate inside the filter pores and on the filter surface. For latex sphere sizes equal to the nominal pore size of the filter, the initial filter efficiencies ranged from 97 to 99.9 percent. Complete retention (>99.9999999 percent) was achieved for a range of particle sizes two to three times the rated pore sizes of the filter. With the addition of a surfactant to the liquid, the retention was found to be lowered as a result of enhanced particle passage through the filter due to modified surface adsorption and steric stabilization. It was found that particle retention by sieving with the addition of surfactant provided the "worst-case" test for filter performance.

Replication of Wet Objects and Cells

1974 ◽  
Vol 32 ◽  
pp. 102-103
Author(s):  
S. Basu ◽  
D. F. Parsons
Keyword(s):  
Water Vapor Pressure ◽  
High Vacuum ◽  
Polystyrene Latex ◽  
Vacuum System ◽  
Saturated Water Vapor ◽  
Replication Method ◽  
New Methods ◽  
Saturated Water ◽  
Water Vapors ◽  
Intermediate Chamber

We are approaching the invasiveness of cancer cells from the studies of their wet surface morphology which should distinguish them from their normal counterparts. In this report attempts have been made to provide physical basis and background work to a wet replication method with a differentially pumped hydration chamber (Fig. 1) (1,2), to apply this knowledge for obtaining replica of some specimens of known features (e.g. polystyrene latex) and finally to realize more specific problems and to improvize new methods and instrumentation for their rectification. In principle, the evaporant molecules penetrate through a pair of apertures (250, 350μ), through water vapors and is, then, deposited on the specimen. An intermediate chamber between the apertures is pumped independently of the high vacuum system. The size of the apertures is sufficiently small so that full saturated water vapor pressure is maintained near the specimen.

Increased Protein Synthesis by Human Platelets during Phagocytosis of Latex Particles in Vitro

1976 ◽  
Vol 35 (02) ◽  
pp. 350-357 ◽  
Author(s):  
Hana Bessler ◽  
Galila Agam ◽  
Meir Djaldetti
Keyword(s):  
Protein Synthesis ◽  
Fold Increase ◽  
Human Platelets ◽  
Polystyrene Latex ◽  
Latex Particles ◽  
The Third ◽  
Platelet Protein ◽  
Dose Dependent ◽  
Phagocytotic Activity

SummaryA three-fold increase of protein synthesis by human platelets during in vitro phagocytosis of polystyrene latex particles was detected. During the first two hours of incubation, the percentage of phagocytizing platelets and the number of latex particles per platelet increased; by the end of the third hour, the first parameter remained stable, while the number of latex particles per cell had decreased.Vincristine (20 μg/ml of cell suspension) inhibited platelet protein synthesis. This effect was both time- and dose-dependent. The drug also caused a decrease in the number of phagocytizing cells, as well as in their phagocytotic activity.

Platelet Metabolism during the Interiorization of Two Different Types of Particulate Matter

1972 ◽  
Vol 27 (02) ◽  
pp. 263-271 ◽  
Author(s):  
I. A. Cooper ◽  
P Cochrane ◽  
B. G. Firkin ◽  
K. J. Pinkard
Keyword(s):  
Particulate Matter ◽  
Polymorphonuclear Leukocyte ◽  
Anaerobic Metabolism ◽  
Human Platelets ◽  
Metabolic Changes ◽  
Polystyrene Latex ◽  
Considerable Time ◽  
Difference Of Opinion ◽  
Different Types ◽  
Aerobic And Anaerobic

SummaryIt has been suggested that human platelets possess the ability to phagocytose particulate matter similar to the polymorphonuclear leukocyte. However some difference of opinion has arisen regarding this contention, particularly as differences have been demonstrated with regard to the observed metabolic changes occurring in platelets related to such a process.The experiments reported in this paper were designed to observe the aerobic and anaerobic metabolism in human platelets during and following interiorization of two different particles, viz. polystyrene latex and thorotrast. The results of these experiments show a marked difference between both types of particles with regard to observable metabolic changes despite the rapid interiorization of both types of material. Some alteration occurs in both aerobic and anaerobic metabolism a considerable time after interiorization of latex, whereas no alteration could be demonstrated after interiorization of thorotrast. It is suggested that the interiorization of particulate matter is by some process other than phagocytosis and that observed metabolic changes related to latex may be due to a release reaction.

Analysis of Electrochemical Deposition Process of Permalloy Films

2019 ◽  
Vol 24 (6) ◽  
pp. 547-556
Author(s):  
R.D. Tikhonov ◽  
◽  
S.A. Polomoshnov ◽  
V.V. Amelichev ◽  
D.V. Kostuk ◽  
...  
Keyword(s):  
Electrochemical Deposition ◽  
Deposition Process
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