Ruthenium Red
Ruthenium Red - Related Videos
03:03
Double-Staining Method: A Technique to Visualize Plant-Fungus Interactions Using Ruthenium Red and Lactophenol Cotton Blue
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2025
This video demonstrates a double staining method using ruthenium red and lactophenol cotton blue to visualize pectins and chitins during plant-fungus interactions in a coffee rust plant. The procedure helps understand plant defense mechanisms during fungal infections.
10:51
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
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Cited by 4 •
2015
Ruthenium phosphine complexes are widely used for homogeneous catalytic reactions such as hydrogenations. The synthesis of a series of novel tridentate ruthenium complexes bearing the N-triphos ligand N(CH2PPh2)3 is reported. Additionally, the stoichiometric reaction of a dihydride Ru–N-triphos complex with levulinic acid is described.
07:12
Synthesis and Evaluation of a Ruthenium-based Mitochondrial Calcium Uptake Inhibitor
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Cited by 5 •
2017
A protocol for the synthesis, purification, and characterization of a ruthenium-based inhibitor of mitochondrial calcium uptake is presented. A procedure to evaluate its efficacy in permeabilized mammalian cells is demonstrated.
01:23
Red Algae
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2025
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
09:12
Measuring Deformability and Red Cell Heterogeneity in Blood by Ektacytometry
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Cited by 51 •
2018
Here we present techniques to measure red cell deformability and cellular heterogeneity by ektacytometry. These techniques are applicable to general investigations of red cell deformability and specific investigations of blood diseases characterized by the presence of both rigid and deformable red cells in circulation, such as sickle cell anemia.
FAQs
Its polycationic ruthenium complex is attracted to negatively charged, or anionic, chemical groups. That electrostatic interaction allows the dye to associate with acidic components such as pectins, mucopolysaccharides, and other extracellular or membrane-associated materials. In microscopy, the resulting labeling helps distinguish these charged structures from surrounding material and supports analysis of their distribution or organization.
Ruthenium Red uses its positive charge differently in the two major experimental contexts. In microscopy, electrostatic binding to anionic groups produces structural labeling. In pharmacology, the compound's broad inhibition of several calcium-permeable ion channels changes ion-transport behavior. Keeping these mechanisms separate helps researchers avoid treating a staining result and a channel-blocking result as equivalent evidence.
By inhibiting calcium-permeable channels under experimental conditions, Ruthenium Red can test whether channel-mediated calcium entry contributes to a response. This makes it useful in experiments addressing calcium signaling and mechanosensation, where researchers compare cellular or physiological responses with and without the compound. Because its activity is broad, the resulting evidence supports channel involvement but may not identify a single molecular target.
For microscopy, investigators use Ruthenium Red as a labeling reagent and then examine the marked material with light or electron microscopy. These imaging approaches support observations of cell walls, extracellular matrices, and organelle ultrastructure. The method is therefore useful when researchers need to relate the presence of negatively charged biological components to their location or organization within a specimen.
Cell walls, extracellular matrices, and organelle ultrastructure are prominent targets because they contain acidic or negatively charged components that can associate with the dye. Pectins provide one example of a labeled material, while mucopolysaccharides represent another. Comparing labeling among these locations can help researchers examine the organization of extracellular or organelle-associated material.
Experiments should include appropriate controls because Ruthenium Red has broad activity against several calcium-permeable ion channels. Controls help determine whether an observed change reflects the intended channel-related mechanism or broader consequences of inhibiting multiple pathways. This precaution is particularly important when interpreting calcium signaling, mechanosensation, or channel-function results.