phase-contrast microscopy


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phase-contrast microscopy

a microscopy technique for viewing colourless transparent objects by exploiting the interference between diffracted and undiffracted beams of light to produce an increase in contrast. When such an object is viewed through a light microscope the resulting image has a uniform brightness though the light emerging from different parts of the object has different phase relations which are due to variations in the refractive index. Phase-contrast microscopy uses these phase differences to give an image that would be produced had these differences been in the amplitude of the light.
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A technical comparison of evaluating asbestos concentration by phase-contrast microscopy (PCM), scanning electron microscopy (SEM), and analytical transmission electron microscopy (ATEM) as illustrated from data generated from a case report.
LETTER TO THE EDITOR (APRIL 4, 2018) CONCERNING THE PAPER "HISTOLOGICAL FINDINGS AND LUNG DUST ANALYSIS AS THE BASIS FOR OCCUPATIONAL DISEASE COMPENSATION IN ASBESTOS-RELATED LUNG CANCER IN GERMANY"
Liu, "Dynamic phase-contrast microscopy of living cells by digital holography," Journal of Beijing University of Aeronautics & Astronautics, vol.
Study on Quantitative Phase Imaging by Dual-Wavelength Digital Holography Microscopy
Kurzactkowski, "Ultrastructure of Candida albicans pleomorphic forms: Phase-contrast microscopy, scanning and transmission electron microscopy," Polish Journal of Microbiology, vol.
The Role of Scanning Electron Microscopy in the Direct Diagnosis of Onychomycosis
Lack of 100% correlation of vaginal biocoenosis test results with the cytological results according to the Bethesda system means that assessing the vaginal microflora in phase-contrast microscopy should not be abandoned.
A comparison of vaginal biocoenosis examination with exfoliative cervical cytology
There are several features which represent the characteristics of phase-contrast microscopy images, such as SIFT [4], GIST [5], etc.
Slow feature analysis for mitotic event recognition
The sensitivity of this technique can be further increased by using phase-contrast microscopy or examination at 400x magnification.
Modified negative staining of Heine for Fast and inexpensive screening of Cryptosporidium, Cyclospora, and Cystoisospora spp
Lactate dehydrogenase (LDH) assay and phase-contrast microscopy were used to estimate quantitative and qualitative extent of the neuronal damage, respectively.
NMDA receptor-mediated neuroprotective effect of the Scutellaria baicalensis Georgi extract on the excitotoxic neuronal cell death in primary rat cortical cell cultures
Figure 2 shows micrographs obtained by phase-contrast microscopy of cross section (a) H-SC, (b) H-Q, (c) HSCA, and (d) H-QA sheet samples.
Analysis of contributing factors to production of highly transparent isotactic polypropylene extrusion sheets. Part I
This reprint of the original 2003 edition covers: elementary principles of phase-contrast microscopy, electron optics, wave optics, coherence and Fourier optics, STEM and Z-contrast, electron sources and detectors, measurement of electron-optical parameters, instabilities and the microscope environment, experimental methods, and associated techniques.
High-resolution electron microscopy, 3d ed. (reprint, 2003)
Trypan blue exclusion assay, phase-contrast microscopy, loss of cell adherence, and MTT assay were used to evaluate cadmium toxicity.
The evaluation of an In Vitro model for the study of cadmium toxicity in rainbow trout
The upper reference limits for phase-contrast microscopy used in our laboratory are as follows: erythrocytes, <2/high-power field (HPF); leukocytes, <4/HPF; small-sized hyaline casts, <4 in each slide; hyaline with medium or large diameter, cellular, granular, granulo-hematic, waxy casts, none; cystine crystals, none; other crystals, rare (<10 in each slide).
Microscopic urinalysis and automated flow cytometry in a nephrology laboratory
These fractions were free of spores and aggregates of any kind, as observed by phase-contrast microscopy, SEM, and incubation on LB agar plates.
Human Cell Exposure Assays of Bacillus thuringiensis Commercial Insecticides: Production of Bacillus cereus-Like Cytolytic Effects from Outgrowth of Spores

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