Dcf-da Staining
Dcf-da Staining - Related Videos
03:50
ROS Detection with DCFH-DA Staining: Measuring Total ROS in Colorectal Cancer Cell Lines
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2023
This video describes the protocol for detecting total cellular reactive oxygen species (ROS) using 2',7'-dichlorodihydrofluorescein diacetate (DCFH-DA). This method helps visualize ROS localization in the adherent cells using a fluorescence microscope and further quantify ROS intensity with a fluorescence plate reader.
07:14
Investigating the 'Uncatchable Smile' in Leonardo da Vinci's La Bella Principessa: A Comparison with the Mona Lisa and Pollaiuolo's Portrait of a Girl
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Cited by 3 •
2016
This paper discusses the methodology used to reveal the 'Uncatchable Smile' illusion in Leonardo da Vinci's La Bella Principessa portrait. A combination of three methods was used (inter-observation, structured interviews, and psychophysical experiments), which led to an investigation that shaped itself without prior beliefs, thus reducing potential researcher bias.
11:33
Microscopy and Staining: Gram, Capsule, and Endospore Staining
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2023
Source: Rhiannon M. LeVeque1, Natalia Martin1, Andrew J. Van Alst1, and Victor J. DiRita1 1 Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan, United States of America Bacteria are diverse microorganisms found nearly everywhere on Earth. Many properties help distinguish them from each other, including but not limited to Gram-staining type, shape and arrangement, production of capsule, and formation of spores. To observe these properties, one...
03:12
May-Grunwald Giemsa Staining: A Method to Stain Bone Marrow Cells
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2023
This video describes the technique of staining bone marrow cells using May- Grünwald Giemsa Staining. In the protocol, we will stain the murine myeloid leukemia cells, C149 cells, to analyze the morphology and differential counting.
10:55
Staining Proteins in Gels
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Cited by 7 •
2008
Following separation by electrophoretic methods, proteins in a gel can be detected by several staining methods. Staining of proteins with Coomassie Blue, Silver Staining, SYPRO Orange, SYPRO Ruby are demonstrated in this video.
FAQs
Esterase activity is essential because it removes acetate groups from cell-entered DCF-DA, converting the dye into H2DCF. This intermediate provides the form that ROS can oxidize into fluorescent DCF. Consequently, differences in intracellular esterase processing can influence how much signal develops before oxidative activity is compared.
Fluorescence reflects the oxidation of H2DCF into DCF, so increased signal indicates greater oxidative activity under the tested conditions. It should be treated as a relative readout rather than a direct measurement of total ROS. This distinction matters when comparing developing tissues, because signal differences may reflect cellular state as well as oxidative changes.
Because the signal is influenced by dye loading and cellular conditions, differences in fluorescence do not necessarily represent differences in oxidative activity alone. Comparisons are strongest when samples are evaluated under consistent staining and measurement conditions. This caution is especially important in developing tissues, where cells and regions may differ in their physiological state.
An experimental workflow begins by exposing living cells or developing tissue to DCF-DA, allowing intracellular processing to generate H2DCF, and then measuring the resulting DCF fluorescence by microscopy or fluorometry. Consistent comparison conditions help researchers relate signal differences to an experimental treatment, developmental stage, or tissue region.
In developmental biology, the method can reveal redox changes associated with cell differentiation and tissue formation. Fluorescence patterns can be examined across cells or tissue regions to identify where oxidative activity differs during development. These measurements provide a way to connect intracellular redox variation with changing developmental organization, while retaining a relative rather than absolute interpretation.
Researchers can compare fluorescence between normally developing and environmentally stressed or developmentally defective tissues. Such comparisons may show altered intracellular oxidative activity associated with the condition under study. The resulting pattern can help identify redox changes linked to developmental disruption, but it does not by itself establish that oxidative activity caused the defect.