Sodium Iodide
Sodium Iodide - Related Videos
09:09
Annexin V and Propidium Iodide Labeling
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2023
Staining with annexin V and propidium iodide (PI) provides researchers with a way to identify different types of cell death—either necrosis or apoptosis. This technique relies on two components. The first, annexin V, is a protein that binds certain phospholipids called phosphatidylserines, which normally occur only in the inner, cytoplasm-facing leaflet of a cell’s membrane, but become “flipped” to the outer leaflet during the early stages of apoptosis. The second component is the DNA-binding...
07:34
Modified Annexin V/Propidium Iodide Apoptosis Assay For Accurate Assessment of Cell Death
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Cited by 543 •
2011
An accurate method for the assessment of cell death is described. The protocol improves upon conventional Annexin V/ propidium iodide (PI) protocols, which display up to 40% false- positive events in cell lines and primary cells from a broad range of animal models.
04:31
Differential Nuclear Staining Assay: An Assay to Determine Mitocan Cytotoxicity by Propidium Iodide and Hoechst Double Staining
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2025
This video demonstrates a nuclear staining method to detect the cytotoxic effect of mitocan on drug-sensitive cancer cells and healthy variants. The double staining with DNA-binding dyes such as propidium iodide and Hoechst dye provides a clear distinction between the dead and live cells, thus helping to assess the cytotoxicity of the drug.
01:26
Regulation of Sodium and Potassium
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2024
The regulation of sodium and potassium ion concentrations in the human body is a complex process governed primarily by hormones such as aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP). Sodium Regulation Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily in...
08:53
Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion
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2018
This work presents a protocol for manufacture sodium tungstate and sodium molybdate microcapsules via bacteria and their corresponding nanoparticles.
FAQs
Polar water molecules stabilize the separated sodium and iodide ions, allowing the crystal lattice to break apart and form an electrolyte solution. This behavior explains why sodium iodide can provide mobile ions in aqueous chemistry. The resulting solution is useful when a reaction or analytical preparation requires iodide to be present in a dissolved form.
Iodide can act as a nucleophile, meaning it participates as an electron-rich ion in a chemical reaction. In nucleophilic substitution, this reactivity enables iodide to help replace another group attached to carbon. Sodium iodide therefore serves as a practical iodide source for transformations in which alkyl chlorides or bromides are converted into alkyl iodides.
Its predictable solubility makes the amount of iodide introduced into a solution easier to control, while its chemical reactivity allows that iodide to participate in synthesis. Together, these properties support both reaction design and laboratory preparation. Chemists can select sodium iodide when they need a consistent dissolved iodide source with a known role in the process.
In the Finkelstein reaction, sodium iodide supplies iodide to an alkyl chloride or alkyl bromide. The iodide participates in nucleophilic substitution, producing the corresponding alkyl iodide. This reaction illustrates how the compound connects ionic solution chemistry with organic synthesis, because dissolution supplies the reactive ion while substitution changes the organic product.
A supported workflow begins by using sodium iodide as the iodide source and combining it with the selected alkyl chloride or bromide. The iodide then participates in nucleophilic substitution, and the intended outcome is formation of an alkyl iodide. The reaction result provides the key basis for evaluating whether the conversion occurred.
Chemists may choose sodium iodide when they need a soluble iodide source for organic synthesis, analytical chemistry, or preparation of iodide-containing compounds. In synthesis, it supports conversion of selected alkyl halides into alkyl iodides. In analytical and preparation work, its predictable solubility and reactivity make iodide delivery more controlled and reproducible.
Sodium iodide can serve as a defined source of iodide during analytical preparations. Its predictable solubility helps establish an iodide-containing solution, while its known reactivity supports preparation of related compounds. These features make it useful for laboratory procedures that depend on introducing iodide in a controlled chemical form rather than generating the ion indirectly.