Why is methylene blue a colored organic molecule?

Why is methylene blue a colored organic molecule?

When the number of conjugated bonds (or conjugated electrons) is weak, the molecules absorb ultraviolet light and are colorless. As the conjugation extends (the number of double bonds increases), the compound absorbs visible light and is colored.

Why are bacteria stained with methylene blue?

the methylene blue enters all the cells to which it is applied; but, in living cells, it is very quickly reduced and therefore becomes invisible. VS’is for this reason that only dead cells (and, therefore, fixed cells) stain in blue during this manipulation.

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Why is Dibenzalacetone colored?

The molecule produced (and the possible by-products of the reaction) have conjugated double bonds, which in addition to making the molecules reactive to UV (not in the sense of instability, I mean), sometimes gives colors in the spectrum of the visible to molecules (chromophore).

How to get rid of a sore throat?

For treat a sore throat, paracetamol should be taken if it is associated with fever. At a rate of 3 g/24 hours, it will also calm pain and fever. . Lozenges sold in pharmacies can help you. Their local anesthetic provides punctual pain relief.

What are the benefits of methylene blue?

Methylene blue is an antiseptic and an antioxidant. In the case of poisoning by nitrates, nitrites, chlorates, an injection of methylene blue can reduce methemoglobin to hemoglobin: it is an antidote. Methylene blue is a guanylate cyclase inhibitor.

Is methylene blue an antidote?

In the case of poisoning by nitrates, nitrites, chlorates, an injection of methylene blue can reduce methemoglobin to hemoglobin: it is an antidote. Methylene blue is a guanylate cyclase inhibitor.

Why is methylene blue blue?

Additionally, DNA, which is acidic, makes methylene blue even bluer, which may allow better visualization of the nucleus of eukaryotic cells. The negative charges of DNA are also attracted to the positive charges of methylene blue.

What is the difference between methylene blue and redox?

Methylene blue is used in various fields: It serves as a redox color indicator: its oxidized form is blue while its reduced form is colorless.