ZIB

1

Digitale Medien

Anomalies in particle shape during seeded growth of polystyrene latices (1974)

COX, R. A. ; CREASEY, J. M. ; WILKINSON, M. C.

[s.l.] : Nature Publishing Group

Nature 252 (1974), S. 468-469

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Polystyrene latices may be grown in the absence of emulsi-fier1,2 (Table 1); however, the ultimate size of the latex produced is limited. In an effort to obtain larger particles, using an emulsifier-free technique, we used a two-stage process whereby a latex of selected size was utilised as the ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/252468a0

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2

Digitale Medien

Lamellar Transformation of Lung Mitochondria under Conditions of Stress (1972)

PATTLE, R. E. ; SCHOCK, C. ; DIRNHUBER, P. ; [weitere]

[s.l.] : Nature Publishing Group

Nature 240 (1972), S. 468-469

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Pieces of lung, fixed in 2% glutaraldehyde and 1 % osmium tetroxide, were further fixed and stained in a mixture of 10 vol M/40 lead nitrate and 10.5 vol M/60 potassium ferricyanide solutions. They were embedded for electron microscopy in 'Araldite' with acetone as dehydrator and thinner and a ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/240468a0

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3

Digitale Medien

Spherical Pseudomorphs in Aerosols of B. lactis aerogenes (1962)

CREASEY, J. M.

[s.l.] : Nature Publishing Group

Nature 194 (1962), S. 603-603

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Fig 1. Electron micrographs of B. lactis aerogenes. Above, dried organisms from atomizer; below, dried organisms after addition : of drop of water Attempts were made to regenerate the normal shape of the bacteria by exposure to a high concentration of water vapour; but these proved unsuccessful. ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/194603a0

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4

Digitale Medien

Electron microscopy of the lung surfactant (1972)

Pattle, R. E. ; Schock, C. ; Creasey, J. M.

Springer

Cellular and molecular life sciences 28 (1972), S. 286-287

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ISSN: 1420-9071

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Résumé On a étudié le poumon au microscope électronique par des méthodes speciales pour ménager les inclusions lamellaries osmiophiliques. On a conclu que la substance tensioactive n'est pas produite par la membrane superficielle des cellules alvéolaires, mais par les inclusions lamellaires des cellules du second type.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01928692

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5

Digitale Medien

Lung inclusion bodies: Different ultrastructure in simian and non-simian mammals (1974)

Pattle, R. E. ; Gandy, G. ; Schock, C. ; [weitere]

Springer

Cellular and molecular life sciences 30 (1974), S. 797-798

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ISSN: 1420-9071

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Résumé Les inclusions lamellaires des cellules du second type du poumon sont la source de la substance tensioactive. Chez l'homme et les singes de l'ancient et du nouveau monde, ces inclusions sont de forme concentrique et peuvent provenir du réticulum endoplasmique. Chez d'autres mammifères, y compris un lémurien, elles ont, pour la plupart, des barres rectilignes ou arguées et proviennent des corps multivesiculaires.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01924192

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6

Digitale Medien

Study of the anomalous particles formed during the surfactant-free emulsion polymerization of styrene (1977)

Cox, R. A. ; Wilkinson, M. C. ; Creasey, J. M. ; [weitere]

New York : Wiley-Blackwell

Journal of Polymer Science: Polymer Chemistry Edition 15 (1977), S. 2311-2319

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ISSN: 0360-6376

Schlagwort(e): Physics ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: The presence of anomalous regions within polystyrene latex particles prepared in the absence of added emulsifier has been investigated. It appears that they arise through loss of monomer from particles consisting of a discrete monomer-rich region surrounded by a polymer shell. It is likely that in most cases, monomer is lost from the region on evacuation prior to electron microscope examination, although there is some evidence from γ-irradiated samples (prior to electron microscopy) that loss of monomer can also occur during storage and/or dilution of the sample. Scanning electron microscopy and carbon replication techniques have been used to determine the shapes of the voids. Gas adsorption studies and carbon replication have also served to illustrate that the presence of the regions was not due to electron-beam damage. The presence of extrusions on some samples has been attributed to incomplete loss of monomer on evacuation due to the thickness of the surrounding polymer shell.

Zusätzliches Material: 9 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pol.1977.170151003

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