Search results
Results from the WOW.Com Content Network
Cy7 is a near-IR fluor that is invisible to the naked eye (excitation/emission maximum 750/776 nm). It is used in in vivo imaging applications, as well as the Cy7.5 dye. Sulfo–cyanine dyes bear one or two sulfo groups, rendering the Cy dye water-soluble, but tri- and quadri-sulfonated forms are available for even higher water solubility. [8]
Beer bottles of different colors. Glass coloring and color marking may be obtained in several ways.. by the addition of coloring ions, [1] [2]; by precipitation of nanometer-sized colloids (so-called striking glasses [1] such as "gold ruby" [3] or red "selenium ruby"), [2] Ancient Roman enamelled glass, 1st century, Treasure of Begram
A dye filters out all colors but its own; two blended dyes filter out all colors but the common color component between them, e.g. green as the common component between yellow and cyan, red as the common component between magenta and yellow, and blue-violet as the common component between magenta and cyan.
Clothing colored with the Tyrian dye was mentioned in both the Iliad of Homer and the Aeneid of Virgil. [13] The deep, rich purple dye made from this snail became known as Tyrian purple. [14] The process of making the dye was long, difficult and expensive. Thousands of the tiny snails had to be found, their shells cracked, the snail removed.
This category contains members of the cyanine family of fluorescent dyes. The other two major families include the fluorones and the rhodamines.
This is a list of dyes with Colour Index International generic names and numbers and CAS Registry numbers. This list is incomplete; you can help by adding missing items.
Kyanite is a typically blue aluminosilicate mineral, found in aluminium-rich metamorphic pegmatites and sedimentary rock.It is the high pressure polymorph of andalusite and sillimanite, and the presence of kyanite in metamorphic rocks generally indicates metamorphism deep in the Earth's crust.
Cyan (/ ˈ s aɪ. ə n,-æ n /) [1] [2] [3] is the color between blue and green on the visible spectrum of light. [4] [5] It is evoked by light with a predominant wavelength between 500 and 520 nm, between the wavelengths of green and blue.