Bright Field Microscopy
Bright Field Microscopy - Related Videos
02:49
Picrosirius Red Polarization Staining: A Technique To Detect Fibrosis in Cardiac Tissue Sections Using Bright-Field Microscopy
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2025
This video describes the picrosirius red staining of fibrotic tissues to detect excessive collagen deposition in fibrotic tissue sections. The staining technique helps assess collagen expression in connective-tissue diseases.
10:43
Oligomerization Dynamics of Cell Surface Receptors in Living Cells by Total Internal Reflection Fluorescence Microscopy Combined with Number and Brightness Analysis
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Cited by 3 •
2019
We describe an imaging approach for the determination of the average oligomeric state of mEGFP-tagged-receptor oligomers induced by ligand binding in the plasma membrane of living cells. The protocol is based on Total Internal Reflection Fluorescence (TIRF) microscopy combined with Number and Brightness (N&B) analysis.
06:42
Wide-field Fluorescent Microscopy and Fluorescent Imaging Flow Cytometry on a Cell-phone
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Cited by 32 •
2013
We review our recent results on the integration of fluorescent microscopy and imaging flow cytometry tools on a cell-phone using compact and cost-effective opto-fluidic attachments. These cell-phone based micro-analysis devices might be useful for cytometric analysis, such as performing various cell counting tasks as well as for high-throughput screening of e.g., water samples in resource limited settings.
10:33
Local Field Fluorescence Microscopy: Imaging Cellular Signals in Intact Hearts
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Cited by 8 •
2017
In the heart, molecular events coordinate the electrical and contractile function of the organ. A set of local field fluorescence microscopy techniques presented here enables the recording of cellular variables in intact hearts. Identifying mechanisms defining the cardiac function is critical in understanding how the heart works under pathological situations.
FAQs
Image contrast arises when different parts of a specimen transmit, absorb, or scatter unequal amounts of illumination. Regions that alter the transmitted light appear distinct from the bright background, allowing structural differences to be observed. In bioengineered samples, this contrast can reveal variations in cell appearance, tissue organization, or the visual structure of engineered biological materials.
Transparent specimens may produce insufficient contrast because they do not strongly alter transmitted illumination. Staining adds contrast-enhancing differences that make cellular or tissue features easier to distinguish against the bright background. This is particularly useful when researchers need to assess morphology or organization that would otherwise be difficult to observe clearly.
The technique can make differences in cellular appearance, tissue arrangement, and engineered material structure visible when those features affect light transmission. These observations support qualitative assessment of organization and morphology rather than relying only on a specimen’s overall presence. Such visual information is relevant when evaluating cells, tissues, and bioengineered materials.
A basic workflow places the specimen in the path of illumination, directs light from below through the sample, and observes the resulting image against a bright background. If the specimen is too transparent, staining or another contrast-enhancement approach may be used before observation. The same general workflow fits routine examination of cells, tissues, and engineered materials.
Researchers can examine images to count visible cells and assess features of cellular morphology, meaning cell form and appearance. These measurements help characterize samples during bioengineering studies and provide practical information about how cells are represented within a preparation. Because the method fits routine laboratory workflows, it can support repeated observational assessments.
Bright-field observations can document how living cells appear in relation to biomaterials or scaffolds and can help assess organization within engineered biological systems. Researchers may use the images to monitor cell morphology and the visual arrangement of tissue or material-associated structures. This provides a direct observational component for evaluating cell-material interactions in bioengineering.
Its straightforward operation, broad availability, and compatibility with routine laboratory workflows make it practical for quality-control observations. Laboratories can use it to inspect cell appearance, count cells, evaluate tissue organization, and monitor engineered biological materials. These applications provide accessible visual checks during research or production-related assessment without requiring a specialized imaging workflow.