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WINGED WORDS, PHRASEOLOGICAL UNITS
Directory / Winged words, phraseological units / The tongue is given to the diplomat in order to hide his thoughts

Winged words, phraseological units. Meaning, history of origin, examples of use

Winged words, phraseological units

Directory / Winged words, phraseological units

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The language was given to the diplomat in order to hide his thoughts

Charles Maurice Talleyrand
Charles Maurice Talleyrand

Phraseologism: Language is given to a diplomat in order to hide his thoughts.

Meaning: About endurance, the ability to speak tactfully.

Origin: According to legend, the words of the French Minister of Foreign Affairs Charles Maurice de Talleyrand (1754-1838), which he said (1807) in a conversation with the Spanish ambassador to France, Izquierdo, when he reminded Talleyrand of the promises he had made to King Charles IV of Spain. Perhaps, in this case, Talleyrand only quoted a phrase from the play (scene 6) "Forced Marriage" by J. B. Molière.

Random phraseology:

To the left of common sense.

Meaning:

About left-wing radicals and extremists whose slogans, calls and actions contradict elementary common sense.

Origin:

The words of the Russian Marxist, Social Democrat, publicist Georgy Valentinovich Plekhanov (1857-1919).

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Subcutaneous nanosensor 07.11.2013

Nitric oxide (NO) is one of the most important molecules in living cells. It is responsible for the delivery of signals within and between cells, and coordinates the work of the immune system. Many cancer cells have abnormal levels of nitric oxide, but scientists don't know exactly how this gas works. So, according to them, the role of nitric oxide in the progression of cancer is highly controversial, and scientists need new tools to understand the process.

Researchers at the Massachusetts Institute of Technology have developed a new tool to measure the body's nitric oxide levels in real time. The sensor designed by engineers can be implanted in the body (under the skin) for more than a year and control the process of inflammation - the process during which NO is produced.

This work is the first proof that nanosensors can be used directly in the body for an extended period of time. Sensors made of carbon nanotubes are expected to be used, among other things, to detect other molecules, such as glucose. Already, a team of researchers is working on a sensor for diabetics that will monitor sugar and insulin levels without the need to take blood samples.

Carbon nanotubes one nanometer thick, scientists consider promising for the manufacture of sensors. Researchers at the Massachusetts Institute of Technology have recently developed carbon tube sensors for various molecules, including hydrogen peroxide and sarin. Such sensors use the fluorescence of carbon nanotubes: when a nanotube binds to a particular molecule, it glows brighter or dimmer.

In the new work, the researchers modified the nanotube to create two different types of sensors: one for insertion into the bloodstream for short-term monitoring, and the other for long-term implantation under the skin.

To improve sensor performance, scientists used a biocompatible polymer (polyethylene glycol), which prevents particles from sticking together in the bloodstream. Experiments on mice have shown that in this case, the particles can pass through the lungs and heart without causing any damage. Most particles accumulate in the liver, where they are used to monitor NO levels. At the same time, the researchers note that so far they have studied only the liver, but now they see that the particles remain in the blood. This means that it is possible to study different areas of the body with the help of nanoparticles.

The sensor for long-term residence in the body consists of nanotubes embedded in an alginate gel (a polymer derived from algae). After implantation under the skin of mice, the gel remained in place and functioned for 400 days. But the researchers suggest that the life of the sensor can be extended. In the future, such a sensor would be useful for monitoring cancer or other inflammatory diseases, and for detecting immune responses in patients with artificial hips or other implanted devices.

Scientists are now working on adapting this technology for glucose detection. It is assumed that nanotubes will replace electrochemical sensors for measuring blood sugar levels, which do not work for long, and also increase the risk of infection due to the penetration of the electrode under the skin. But the new sensor will determine the level of sugar in real time, and the insulin pump connected to it will supply the hormone in the right amount.

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