Search results
Results from the WOW.Com Content Network
Nile red (also known as Nile blue oxazone) is a lipophilic stain. Nile red stains intracellular lipid droplets yellow. In most polar solvents, Nile red will not fluoresce; however, when in a lipid-rich environment, it can be intensely fluorescent, with varying colors from deep red (for polar membrane lipid) to strong yellow-gold emission (for neutral lipid in intracellular storages).
They settled on nile red, a compound for dyeing used in biochemistry, as it sounded good and did not sound much like a chemical. A second channel, NileBlue, was created in 2016 to showcase more casual projects than the main channel, and a shorts channel, NileRed 2 (formerly NileRed Shorts), was created in 2021.
Nile blue (or Nile blue A) is a stain used in biology and histology. It may be used with live or fixed cells, and imparts a blue colour to cell nuclei . It may also be used in conjunction with fluorescence microscopy to stain for the presence of polyhydroxybutyrate granules in prokaryotic or eukaryotic cells.
Fluorescent dyes such as Nile red and Nile blue are based on the aromatic compound benzophenoxazine. Cinnabarine and cinnabaric acid are two naturally occurring dioxazines, being derived from biodegradation of tryptophan. [2]
(Vital stains include dyes like trypan blue and propidium iodide, which are either too bulky or too charged to cross the cell membrane, or which are actively rapidly pumped out by live cells.) Supravital staining can be combined with cell surface antibody staining ( immunofluorescence ) for applications such as FACS analysis. [ 4 ]
For premium support please call: 800-290-4726 more ways to reach us
Below the confluence with the Blue Nile the only major tributary is the Atbarah River, also known as the Red Nile. Roughly halfway to the sea, it originates in Ethiopia north of Lake Tana, and is around 800 kilometers (500 mi) long. The Atbarah flows only while there is rain in Ethiopia and dries very rapidly.
The Blue Nile [note 1] is a river originating at Lake Tana in Ethiopia.It travels for approximately 1,450 km (900 mi) through Ethiopia and Sudan.Along with the White Nile, it is one of the two major tributaries of the Nile and supplies about 85.6% of the water to the Nile during the rainy season.