Nitric oxide (nitrogen oxide or nitrogen monoxide [1]) is a colorless gas with the formula NO. It is one of the principal oxides of nitrogen. Nitric oxide is a free radical: it has an unpaired electron, which is sometimes denoted by a dot in its chemical formula (• N=O or • NO).

2025年1月11日 · nitric oxide (NO), colourless toxic gas that is formed by the oxidation of nitrogen. Nitric oxide performs important chemical signaling functions in humans and other animals and has various applications in medicine .

Biological functions of nitric oxide are roles that nitric oxide plays within biology. Nitric oxide (nitrogen monoxide) is a molecule and chemical compound with chemical formula of N O. In mammals including humans, nitric oxide is a signaling molecule involved in several physiological and pathological processes. [1]

一氧化氮（Nitric Oxide，NO）是一种无色、无味气体，微溶于水，溶于乙醇、二硫化碳,化学式为NO。 它在自然界中广泛存在，并在生物体内扮演重要的信号分子角色。

一氧化氮 是 氮 的化合物， 化学式 NO， 分子量 30，氮 化合价 +2，是無色、無味、 難溶於水 的有毒氣體。 一氧化氮是 自由基，化學性質非常活潑。 有 顺磁性。 与 氧 反应可形成腐蚀气体 二氧化氮 （NO₂）。 标准状况 下为无色气体，液态、固态呈蓝色。 一氧化氮起 信号分子 作用。 [6] 它是 脊椎动物 的关键 讯息传递 分子，在各种生物过程中发挥作用。 [7] 它是几乎所有生物的生物产品，包括细菌、植物、真菌和动物细胞。 [8] 越來越多研究表明一氧化氮可以調節血管的各種 …

Nitric oxide (NO) is a gaseous molecule that has a central role in signaling pathways involved in numerous physiological processes (e.g., vasodilation, neurotransmission, inflammation, apoptosis, and tumor growth). Due to its gaseous form, NO has a ...

Nitric oxide is a nitrogen oxide which is a free radical, each molecule of which consists of one nitrogen and one oxygen atom. It has a role as a neurotransmitter, a signalling molecule, a vasodilator agent, a bronchodilator agent, a radical scavenger, a human metabolite, an Escherichia coli metabolite and a mouse metabolite.

4 天之前 · In the human body, Nitric Oxide acts as a vital messenger molecule, helping cells communicate with each other. It’s especially important for regulating blood pressure, as it helps blood vessels relax and widen, allowing blood to flow more easily.

2023年8月26日 · Nitric oxide (NO) is a gaseous molecule that has a central role in signaling pathways involved in numerous physiological processes (e.g., vasodilation, neurotransmission, inflammation, apoptosis, and tumor growth).

Nitric oxide (nitrogen monoxide, •NO) has been intensively studied by chemists and physicists for over 200 years and thus there is an extensive database of information that determines its biological actions.