Monitoring internal structure of Langmuir-Blodgett monomolecular films by scanning electron microscopy

1986 ◽  
Vol 144 (2) ◽  
pp. L115-L117 ◽  
Author(s):  
Kiminori Itoh ◽  
Tohru Yokota ◽  
Akira Fujishima ◽  
Kenichi Honda
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Internal Structure ◽  
Langmuir Blodgett ◽  
Monomolecular Films ◽  
Scanning Electron

The use of plasma etching to reveal the internal structure of Nippostrongylus brasiliensis (Nematoda)

Parasitology ◽  
1983 ◽  
Vol 86 (3) ◽  
pp. 477-480 ◽  
Author(s):  
D. L. Lee ◽  
C. D. Nicholls
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Internal Structure ◽  
Plasma Etching ◽  
Middle Layer ◽  
Nippostrongylus Brasiliensis ◽  
Cortical Layers ◽  
Transmission Electron ◽  
Scanning Electron

SUMMARYPlasma etching has been used to strip away the cortical layers of the cuticle of adult Nippostrongylus brasiliensis to reveal the struts, with their supporting fibres, which are found in the fluid-filled middle layer of the cuticle, and the basal fibre layers. The etched specimens were studied by means of scanning electron microscopy. The results support earlier work, obtained by transmission electron microscopy, on the cuticle of this nematode. Plasma etching has been shown to have potential in studying the structure of nematodes.

Phase separation in the Langmuir–Blodgett films of p-quaterphenyl mixed with two different matrices

2014 ◽  
Vol 28 (11) ◽  
pp. 1450073
Author(s):  
Jayasree Nath ◽  
Ajitesh Pal ◽  
Subrata Deb ◽  
Bijay Kumar Mishra ◽  
Ranendu Kumar Nath
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Phase Separation ◽  
Heptadecanoic Acid ◽  
Aggregate Formation ◽  
Langmuir Blodgett ◽  
The Matrix ◽  
Mixed Films ◽  
Langmuir Blodgett Films ◽  
Scanning Electron

The phase behavior of two components p-quaterphenyl (QP) and polymethyl methacrylate (PMMA)/heptadecanoic acid (HA)) in the Langmuir monolayer was characterized. The surface pressure versus area per molecule isotherms revealed that the area per molecule systematically changed with increasing mole fractions of QP, indicating that repulsive types of interactions were involved between the QP and the matrix molecules (PMMA/HA), leading to the phase separation which in turn stimulated the aggregate formation. Absorption spectroscopy, complemented with scanning electron microscopy (SEM), confirmed the aggregation of QP molecules in the mixed films.

Studies in Australian Gryllacrididae: the proventriculus as a taxonomic character

1991 ◽  
Vol 5 (2) ◽  
pp. 443 ◽  
Author(s):  
RG Bland ◽  
DCF Rentz
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Internal Structure ◽  
Food Type ◽  
Taxonomic Character ◽  
Structural Differences ◽  
Scanning Electron

The internal structure of the proventriculus of 17 species from 12 gryllacridid genera is described using light and scanning electron microscopy and is discussed in relation to its use as a taxonomic character. Structural differences were sufficient at 60 to 200 x to separate genera and species. Correlations between proventricular structure and food type are briefly discussed.

Transmission Electron Microscopy of Green Sheet Ceramic Specimens Prepared by Ultramicrotomy

1970 ◽  
Vol 28 ◽  
pp. 464-465
Author(s):  
Ronald M. Anderson ◽  
Fred W. Schneider
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Internal Structure ◽  
High Magnification ◽  
Transmission Electron ◽  
Green Sheet ◽  
Scanning Electron

It is often desirable to make high-magnification observations of the internal structure of green sheet ceramic. Scanning electron microscopy and replication microscopy have been unsatisfactory in studying the structure of green sheet ceramic. The feasibility of another technique, that of combining ultramicrotomy with transmission electron microscopy (TEM), seemed, therefore, worth investigating. Mullite and alumina green sheets were studied.Narrow (1 × 10mm) strips of green sheet ceramic were cut and mounted in “Beem” microtome capsules. A mixture of Cargille NYSEM epoxy embedding materials was prepared and poured into the capsules, care being taken to keep the specimen centered, especially at the tapered end of the capsule.

Fabrication and Internal Functionalization of Highly Macroporous WO3 Thin Films

2018 ◽  
Author(s):  
Maria Ojeda ◽  
Cale Gaster ◽  
Clifton Harris
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Scanning Electron Microscopy ◽  
Internal Structure ◽  
Spin Coating ◽  
High Porosity ◽  
Co Catalyst ◽  
Neutral Electrolyte ◽  
Conductive Substrates ◽  
Scanning Electron

Highly macroporous thin films of WO3 were fabricated on transparent conductive substrates by application of a polymeric organic paste loaded with an amine/tungstate complex.  After spin-coating and annealing at 550oC, the resulting yellow films are found to be comprised of channeled array of clustered nanoparticles.  These channels are confirmed by scanning electron microscopy to extend through the entire length of the coating.  The high porosity of the material enables the insertion of a co-catalyst into the internal structure of the film.  These internally functionalized composites demonstrate good photosensitivity and stability in neutral electrolyte.

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