Application of dry-polishing techniques to water-soluble glass ceramics

Knowledge about the oxidation state of molybdenum in glasses and glass ceramics which contain nuclear waste is important because of the danger of formation of water-soluble Cs-molybdate with Cs-137. In a previous paper , the behaviour of molybdenum in glasses with and without fission products was investigated with the aid of ESR and optical spectroscopy.

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Water-Resistant Polymer Coatings for Water-Soluble Glass

Industrial & Engineering Chemistry Product Research and Development ◽

10.1021/i360045a007 ◽

1973 ◽

Vol 12 (1) ◽

pp. 53-56

Author(s):

M. J. Eitel ◽

D. A. Kay ◽

S. F. Hulbert

Keyword(s):

Polymer Coatings ◽

Water Soluble ◽

Soluble Glass

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A water-soluble glass-based temporary restorative resin inhibited bacteria-induced pH reductions at the bacteria-material interface

Dental Materials Journal ◽

10.4012/dmj.2021-129 ◽

2021 ◽

Author(s):

Gen MAYANAGI ◽

Luo YUFANG ◽

Tomohiro HOSHINO ◽

Nobuhiro TAKAHASHI

Keyword(s):

Water Soluble ◽

Material Interface ◽

Soluble Glass

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A Resorcinol-Formaldehyde Resin as an Embedding Material for Electron Microscopy of Membranes

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010006355x ◽

1969 ◽

Vol 27 ◽

pp. 328-329 ◽

Cited By ~ 1

Author(s):

J. G. Robertson ◽

D. F. Parsons

Keyword(s):

Electron Microscopy ◽

Osmium Tetroxide ◽

Neutral Lipids ◽

Lipid Extraction ◽

Water Soluble ◽

Formaldehyde Resin ◽

Electron Microscope Autoradiography ◽

Resorcinol Formaldehyde ◽

Major Disadvantage ◽

Cell Organization

The extraction of lipids from tissues during fixation and embedding for electron microscopy is widely recognized as a source of possible artifact, especially at the membrane level of cell organization. Lipid extraction is also a major disadvantage in electron microscope autoradiography of radioactive lipids, as in studies of the uptake of radioactive fatty acids by intestinal slices. Retention of lipids by fixation with osmium tetroxide is generally limited to glycolipids, phospholipids and highly unsaturated neutral lipids. Saturated neutral lipids and sterols tend to be easily extracted by organic dehydrating reagents prior to embedding. Retention of the more saturated lipids in embedded tissue might be achieved by developing new cross-linking reagents, by the use of highly water soluble embedding materials or by working at very low temperatures.

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Ferritin Labeled Antibody Staining of Thin Sections

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100064013 ◽

1969 ◽

Vol 27 ◽

pp. 420-421

Author(s):

J. D. McLean ◽

S. J. Singer

Keyword(s):

Biological Material ◽

Water Soluble ◽

Thin Sections ◽

Antibody Staining ◽

Thin Sectioning ◽

Ultrathin Sections

The successful application of ferritin labeled antibodies (F-A) to ultrathin sections of biological material has been hampered by two main difficulties. Firstly the normally used procedures for the preparation of material for thin sectioning often result in a loss of antigenicity. Secondly the polymers employed for embedding may non-specifically absorb the F-A. Our earlier use of cross-linked polyampholytes as embedding media partially overcame these problems. However the water-soluble monomers used for this method still extract many lipids from the material.

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The Effect of Benzene on Bluegill Olfactory Lamellae

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010011965x ◽

1985 ◽

Vol 43 ◽

pp. 574-575

Author(s):

D.R. Mattie ◽

J.W. Fisher

Keyword(s):

Surface Morphology ◽

Soluble Fraction ◽

Lepomis Macrochirus ◽

Sublethal Concentration ◽

Water Soluble ◽

Major Constituent ◽

Jet Fuels ◽

Aquatic Biota ◽

Normal Surface ◽

Cacodylate Buffer

Jet fuels such as JP-4 can be introduced into the environment and come in contact with aquatic biota in several ways. Studies in this laboratory have demonstrated JP-4 toxicity to fish. Benzene is the major constituent of the water soluble fraction of JP-4. The normal surface morphology of bluegill olfactory lamellae was examined in conjunction with electrophysiology experiments. There was no information regarding the ultrastructural and physiological responses of the olfactory epithelium of bluegills to acute benzene exposure.The purpose of this investigation was to determine the effects of benzene on the surface morphology of the nasal rosettes of the bluegill sunfish (Lepomis macrochirus). Bluegills were exposed to a sublethal concentration of 7.7±0.2ppm (+S.E.M.) benzene for five, ten or fourteen days. Nasal rosettes were fixed in 2.5% glutaraldehyde and 2.0% paraformaldehyde in 0.1M cacodylate buffer (pH 7.4) containing 1.25mM calcium chloride. Specimens were processed for scanning electron microscopy.

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The Microstructure of Steatite (Protoenstatite)

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100118102 ◽

1985 ◽

Vol 43 ◽

pp. 236-237

Author(s):

W. E. Lee ◽

A. H. Heuer

Keyword(s):

High Frequency ◽

Glass Ceramics ◽

Magnesium Silicate ◽

Beam Current ◽

Glassy Matrix ◽

Angle Of Incidence ◽

X Ray ◽

Mechanical And Electrical Properties ◽

Argon Ions ◽

High Temperature Polymorph

IntroductionTraditional steatite ceramics, made by firing (vitrifying) hydrous magnesium silicate, have long been used as insulators for high frequency applications due to their excellent mechanical and electrical properties. Early x-ray and optical analysis of steatites showed that they were composed largely of protoenstatite (MgSiO3) in a glassy matrix. Recent studies of enstatite-containing glass ceramics have revived interest in the polymorphism of enstatite. Three polymorphs exist, two with orthorhombic and one with monoclinic symmetry (ortho, proto and clino enstatite, respectively). Steatite ceramics are of particular interest a they contain the normally unstable high-temperature polymorph, protoenstatite.Experimental3mm diameter discs cut from steatite rods (∼10” long and 0.5” dia.) were ground, polished, dimpled, and ion-thinned to electron transparency using 6KV Argon ions at a beam current of 1 x 10-3 A and a 12° angle of incidence. The discs were coated with carbon prior to TEM examination to minimize charging effects.

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