Journal ArticleDOI
Applications of Scanning Acoustic Microscopy - Survey and New Aspects
M. Hoppe,J. Bereiter-Hahn +1 more
TLDR
In this article, the authors present selected results of work in materials science (ceramics, single crystals, polymers, thin ams, and integrated circuits) and bio-engineering (living cells, mucous coats, and cuticle structures).Abstract:
Although the technique of scanning acoustic microscopy was introduced more than a decade ago, there still is a general lack of wide-spread applications research due to the limited number of instru- ments worldwide To enlarge the spectrum of applications, this contri- bution presents selected results of work in materials science (ceramics, single crystals, polymers, thin ams, and integrated circuits) and biol- ogy (living cells, mucous coats, and cuticle structures) and an opening angle of 100" are used The broadband design of the matching network and transducer and anti- reflection coating enables the frequency range to be cov- ered by two acoustic objectives, operating from 08 to 13 and 13 to 20 GHz, respectively The x- and y-scanning is performed by electromagnetic coil systems driving the objective in a raster mode (x-scanning frequency lockedread more
Citations
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Journal ArticleDOI
Scanning acoustic microscopy
TL;DR: In this article, the scanning acoustic microscope (SAM) operating principle and the various system configurations available are discussed. And various applications are covered, including biological applications, integrated circuits, composite materials and metrology.
Journal ArticleDOI
Acoustic microscopy of cultured cells. Distribution of forces and cytoskeletal elements.
TL;DR: In this paper, the stiffness distribution in XTH-2 cells was compared with the organization of F-actin and microtubules, but no correlation to microtubule arrangement was found.
Journal ArticleDOI
Scanning acoustic microscopy visualizes cytomechanical responses to cytochalasin D.
TL;DR: Based on structural changes revealed by staining of actin with TRITC‐phalloidin, and taking theoretical considerations into account, a relationship between impedance decrease and tension in the actin fibrillar system is deduced.
Patent
Scanning acoustic microscope
TL;DR: In this paper, the disclosed scanning acoustic microscope comprises a solid lens body consisting of two sections of materials having different sound propagation characteristics but matching acoustic impedances, and a lens is formed by the interface of said two sections and has a focal point coinciding with the apex of a sharply pointed tip formed at the free surface of one of them.
Journal ArticleDOI
Architecture of tissue cells the structural basis which determines shape and locomotion of cells
TL;DR: Each hypothesis on cell shape and locomotion must consider this property of a living cell, as different types of locomotion depend on differences in substrate adhesion and/or cytoskeleton organisation.
References
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Journal ArticleDOI
The mechanism of adhesion of cells to glass. a study by interference reflection microscopy.
TL;DR: Evidence is presented that the mechanism of cell adhesion does not involve calcium atoms binding cells to substrate by combining with carboxyl groups on cell surface, substrate, and with a cement substance, and that there is no extracellular material between cell and glass in the adhesions.
Journal ArticleDOI
Acoustic microscopy with mechanical scanning—A review
TL;DR: In this paper, the authors present images that show the elastic properties of specimens selected from the fields of material science, integrated circuits, and cell biology, and show how a single spherical surface formed at a solid liquid interface can serve as this ideal lens free from aberrations and capable of producing diffraction limited beams.
Journal ArticleDOI
An angular‐spectrum approach to contrast in reflection acoustic microscopy
TL;DR: In this paper, an angular-spectrum approach is used to derive an expression for this output in terms of the reflectance function, which has an angular dependence determined by the bulk constants of the material itself.
Journal ArticleDOI
Ray interpretation of the material signature in the acoustic microscope
W. Parmon,Henry L. Bertoni +1 more
TL;DR: In this article, the authors present a ray model showing that this dependence is due to interference between a narrow bundle of axial rays and rays associated with the leaky Rayleigh wave excited on the surface.
Journal ArticleDOI
Quantitative reflection contrast microscopy of living cells.
TL;DR: Mammalian cells in culture (BHK-21, PtK2, Friend, human flia, and glioma cells) have been observed by reflection contrast microscopy and refractive indices found to be higher at points of focal contact, where stress fibers terminate, than in areas of close contact.