Study of cellulose extraction from disposable cups for potential application as a reinforcement of engineering polymers

In order to optimize the toughening effect of elastomers in engineering polymers, it is necessary to characterize the size, morphology and dispersion of the specific elastomer within the polymer matrix. For unsaturated elastomers such as butadiene or isoprene, staining with osmium tetroxide is a well established procedure. The residual carbon-carbon double bond in these materials is the reactive site and forms a 1,2-dilato complex with the OsO4. Incorporation of osmium tetroxide into the elastomer not only produces sufficient contrast for TEM, but also crosslinks the elastomer sufficiently so that ultramicrotomy can be accomplished at room temperature with minimal distortion.Blends containing saturated elastomers such as butyl acrylate (BA) and ethylene propylene diene monomer (EPDM) cannot be stained directly with OsO4 because effective reaction sites such as C=C or -NH2 are not available in sufficient number. If additional reaction sites can be introduced selectively into the elastomer by a chemical reaction or the absorption of a solvent, a modified, two-step osmium staining procedure is possible.

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Post-mortem Peyer’s patches: Their potential application in forensic medicine

Immunopharmacology and Immunotoxicology ◽

10.1080/08923970902902437 ◽

2009 ◽

Vol 00 (00) ◽

pp. 090513010017019-7

Author(s):

Biagio Solarino ◽

Giancarlo Di Vella ◽

Thea Magrone ◽

Felicita Jirillo ◽

Angela Tafaro ◽

...

Keyword(s):

Forensic Medicine ◽

Potential Application ◽

Peyer's Patches ◽

Peyer’S Patches ◽

Post Mortem

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Immunomodulation using genetically engineered bacteria for type III-mediated delivery of heterologous antigens and cytokines: Potential application in vaccine and therapeutical developments

Immunopharmacology and Immunotoxicology ◽

10.1080/08923970902817890 ◽

2009 ◽

Vol 00 (00) ◽

pp. 090924084723050-4

Author(s):

Mustapha Chamekh

Keyword(s):

Potential Application ◽

Genetically Engineered ◽

Type Iii ◽

Genetically Engineered Bacteria ◽

Heterologous Antigens ◽

Engineered Bacteria

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Comparison of Caseinolytic and Fibrinolytic Assays for Plasmin (Fibrinolysin) in “Fibrinolytic Agents”

Thrombosis and Haemostasis ◽

10.1055/s-0038-1649426 ◽

1966 ◽

Vol 15 (01/02) ◽

pp. 252-272

Author(s):

K. M Moser ◽

Mary Belle Frey

Keyword(s):

Linear Relationship ◽

Potential Application ◽

Fibrinolytic Agents ◽

Linear Portion

Summary1. Caseinolytic and fibrinolytic systems for assay of plasmin in fibrinolytic agents are described which are based upon the determinations of AE/min during the linear portion of the casein-plasmin and fibrin-plasmin reaction curves respectively. A " caseinolytic-rate " unit and “fibrinolytic-rate " unit of ÄE/min × 103 during the linear portion of the respective curves are proposed.2. Data are presented indicating that a reliably linear relationship exists between plasmin concentration and these caseinolytic - and fibrinolytic-rate units.3. Data comparing results obtained with the proposed assay techniques and previously-used casein and fibrinolytic techniques are presented.4. Formulae by which caseinolytic-rate and fibrinolytic-rate units can be roughly converted into Remmert-Cohen type plasmin units are offered.5. The theoretical and practical problems which have influenced development of assays for fibrinolytic components are discussed.6. The advantages of the plasmin “rate unit” techniques vis a vis existing assays are delineated.7. The potential application of the techniques to measurements other than the plasmin content of fibrinolytic agents is discussed.

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The superconductor/ferromagnet proximity effect and its potential application in spintronics

Uspekhi Fizicheskih Nauk ◽

10.3367/ufnr.0176.200606l.0676 ◽

2006 ◽

Vol 176 (6) ◽

pp. 676

Author(s):

I.A. Garifullin

Keyword(s):

Proximity Effect ◽

Potential Application

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Abrasive wear of polymer/steel gear drives

Progress in Agricultural Engineering Sciences ◽

10.1556/progress.4.2008.1 ◽

2008 ◽

Vol 4 (1) ◽

pp. 1-26

Author(s):

Gábor Kalácska

Keyword(s):

Wear Resistance ◽

Abrasive Wear ◽

Material Selection ◽

Solid Particles ◽

Soil Types ◽

General View ◽

Modern Engineering ◽

Clean Environment ◽

Engineering Polymers ◽

Plastic Gears

Research was performed on the friction, wear and efficiency of plastic gears made of modern engineering polymers and their composites both in a clean environment (adhesive sliding surfaces) and in an environment contaminated with solid particles and dust (abrasive), with no lubrication at all. The purpose is to give a general view about the results of abrasive wear tests including seven soil types as abrasive media. At the first stage of the research silicious sand was applied between the meshing gears and the wear of plastic and steel gears was evaluated and analyzed from the point of different material properties (elongation at break, hardness, yield stress, modulus of elasticity) and its combinations. The different correlations between the experienced wear and material features are also introduced. At the second stage of the project the abrasive sand was replaced with different physical soil types. The abrasive wear of gears is plotted in the function of soil types. The results highlight on the considerable role of physical soil types on abrasive wear resistance and the conclusions contain the detailed wear resistance. The results offer a new tribology database for the operation and maintenance of agricultural machines with the opportunity of a better material selection according to the dominant soil type. This can finally result longer lifetime and higher reliability of wearing plastic/steel parts.

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