9/1/2023 0 Comments Indigo![]() Indigo is one of the colors on Newton's color wheel. Woad was replaced by true indigo as trade routes opened up, and both plant sources have now been largely replaced by synthetic dyes.Ĭlassification as a spectral color For a long time, woad was the main source of blue dye in Europe. īlue dye can be made from two different types of plants: the indigo plant, which produces the best results, and from the woad plant Isatis tinctoria, also known as pastel. ![]() Before the Revolutionary War, indigo accounted for more than one-third of the value of exports from the American colonies. In North America, indigo was introduced by Eliza Lucas into colonial South Carolina, where it became the colony's second-most important cash crop (after rice). The English and French subsequently began to encourage indigo cultivation in their colonies in the West Indies. Spanish explorers discovered an American species of indigo and began to cultivate the product in Guatemala. The Ancient Greek term for the dye was Ἰνδικὸν φάρμακον ( indikon pharmakon, "Indian dye"), which, adopted to Latin as indicum (a second declension noun) or indico (oblique case) and via Portuguese, gave rise to the modern word indigo. It was imported from there in small quantities via the Silk Road. Pliny the Elder mentions India as the source of the dye after which it was named. The earliest direct evidence for the use of indigo dates to around 4000 BC and comes from Huaca Prieta, in contemporary Peru. Indigofera tinctoria and related species were cultivated in East Asia, Egypt, India, Bangladesh and Peru in antiquity. History Įxtract of natural indigo applied to paper The first known recorded use of indigo as a color name in English was in 1289. It is traditionally regarded as a color in the visible spectrum, as well as one of the seven colors of the rainbow: the color between blue and violet however, sources differ as to its actual position in the electromagnetic spectrum. The word "indigo" comes from the Latin word indicum, meaning "Indian", as the dye was originally exported to Europe from India. It does not store any personal data.Indigo is a deep color close to the color wheel blue (a primary color in the RGB color space), as well as to some variants of ultramarine, based on the ancient dye of the same name. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. Further opportunities include the management of chronic kidney disease as well as oncology, cardiovascular disease and athletic performance. Beyond diabetes, the CMM ® has broad applicability due to the wide spectrum of metabolites it can monitor. The inconspicuous Indigo CMM ® sensor is being developed initially for diabetes management through continuous glucose, ketone, and lactate monitoring. ![]() Users will be able to share their data with others, and for further analysis. The Indigo receiver displays trends, values, and warnings in real-time on the user’s smartphone or any other connected device via the Indigo app. The small CMM ® sensor is implanted just under the skin and continuously measures metabolites in the body delivering best-in-class data to aid the management of chronic diseases. Indigo is developing a single sensor that is designed to measure a large number of metabolites. For those affected by a chronic disease, their medical needs remain unmet with sufferers reporting high levels of pain, discomfort, and an unnecessarily poor quality of life. Chronic disease is the defining health crisis of our time and is predicted to rise at a growth rate of 100% by 2050.
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