Many humidifiers now have silver ions and negative ions. Take a look at it when you buy it. Take everything away.

1. What is negative ion?

In recent years, the word "negative ion" is familiar to everyone, and it can often be heard and seen in advertisements, commodities, newspapers and TV. So what are negative ions? It's hard to answer in one sentence. Generally speaking, you can only make a metaphor first; What is a person? Man is an advanced animal. Men are divided into "men" and "women" because of their physiological structure. Without this division, "men" and "women" will be called people.

According to the above classification method, there will be "positive ions" when there are "negative ions", all of which are called out by ions. So what are ions? Can only be explained by scientists. In physics, we all know that matter is made up of molecules, and molecules are made up of atoms, and atoms are made up of nuclei and electrons rotating around the nuclei. An object is negatively charged when it gains electrons and positively charged when it loses them. We call the movement of positive and negative electrons ionic phenomenon, that is, positively charged objects are called positive ions and negatively charged objects are called negative ions.

Air is made up of countless molecules. Due to the influence of cosmic rays, ultraviolet rays, soil and air radiation in nature, some air molecules will release electrons. Under normal atmospheric pressure, the released electrons quickly combine with neutral molecules in the air to become negative ions, or anions. Negative ions are negatively charged gas ions in the air. Some people call it "air vitamin" and think that it, like food vitamin, has a very important influence on the life activities of human body and other organisms. Some people even think that negative air ions are related to longevity, which is called "longevity element".

The content of ions in the atmosphere is generally 1 cm3, including 400-700 pairs. The higher the ground is, the more ions there are in the atmosphere. The number of ions in the air is also affected by geographical conditions, the activity of radioactive substances in soil and meteorology (wind, rain, thunder, humidity, clouds, etc.). ) and season. According to the measurement, the ion content in indoor air is 25-450 pairs per 1 cm3, 70-500 pairs in urban streets and 170 pairs in parks.

Second, the discovery of negative ions.

The discovery and application of negative ions is a matter for human beings in the19th century. The first international academic conference proved that negative ions have influence on human body. German physicist Dr. Philip Leona believes that the place with the most negative ions in the natural environment of the earth is around the waterfall. 1930, scholars in the former Soviet Union published a paper on the treatment of diseases with negative air ions, and the United States also published negative ion statistics. In the 20th century, the ratio of positive ions to negative ions in the atmosphere was 1.2: 1. The development of modern society has destroyed the balance of ions in nature. 1930, DESSAVER of the United States proposed that negative ions can make people feel calm and improve the healthy environment.

Third, the natural phenomenon of negative ions.

There are three mechanisms for the generation of air negative ions in nature:

1, the atmosphere is ionized by ultraviolet rays, cosmic rays, radioactive substances, thunderstorms, storms and other factors to produce negative ions.

2. In the natural process, water flows at high speed under the action of gravity, such as waterfall impact, small waves pushing, rainstorm falling, and water molecules cracking to produce negative ions.

3. The photoelectric effect formed by the tip discharge of forest trees, leaves and branches and the photosynthesis of green plants ionizes the air and produces negative ions.

Fourthly, the development and application of artificial negative ions.

When human beings proved that negative ions have effects on people, in order to improve the environment and promote health, a large number of negative ion generators were invented, mainly in two ways. One way is to use high-voltage electricity to generate ionization to generate negative ions in the air, and the other way is to use natural minerals to release negative ions after scientific research and processing. There are many substances on the earth, usually referred to as energy stones, including various minerals, seaweed seabed stones, light shale containing protein and so on. This material is processed into fine powder by high-tech technology, which is completely matched with polymer materials. Can develop a variety of products, applied to textile industry, plastic products, paper products and so on. And various negative ion functional products are formed. The number of negative ions released by these products can reach per cubic centimeter 1200-5000, which is no less than the number of negative ions released by human beings in the natural environment in the suburbs and the wild.

Five, the principle of negative ion generation

In a word, in addition to natural phenomena (such as ultraviolet photosynthesis, lightning, etc.). ), human beings have developed many negative ion products with their own wisdom, and the principles are basically the same. When there are conditions for emitting negative ions in specific environments such as air, electrons e (O 2, N 2, CO2, SO2, H2O) in the atmosphere will be released, and its reaction with CO2 and H2O is as follows:

H2O+e←→02(H2O)m

C02+e←→C04(H2O)m

c04+(H2O)2+H2←→02(H2O)m+C02

Thereby generating negative ions.

Negative ions in biology

1. What are negative ions?

Air is made up of countless molecules. Due to the influence of cosmic rays, ultraviolet rays, soil and air radiation in nature, some air molecules will release electrons. Under normal atmospheric pressure, the released electrons quickly combine with neutral molecules in the air to become negative ions, or anions. Negative ions are negatively charged gas ions in the air. Some people call it "air vitamin" and think that it, like food vitamin, has a very important influence on the life activities of human body and other organisms. Some people even think that negative air ions are related to longevity, which is called "longevity element".

Second, negative oxygen ions and metabolism

If there is no good metabolism, the human body will not be able to absorb external nutrition, and the body will be filled with harmful and useless aging garbage, and the physiological function of the whole body will tend to weaken, thus causing various diseases.

But, you know what? Negative oxygen ions are necessary factors to restore life and promote metabolism. According to the research of Japanese scientist Fu Jie Ino, the quality and quantity of oxygen ions directly affect the metabolic function of human body. For example, in blood, biological ions are closely related to minerals (sodium, calcium and potassium) in the body. When negative oxygen ions increase, the functions of all cells, mainly cell membranes, will be significantly improved, and the ionization rate of calcium and sodium in blood will increase, making the blood weakly alkaline, which is conducive to the full absorption of nutrients and the complete elimination of aging waste, thus making the blood get the best purification.

The number of negative oxygen ions in human body will change with the change of air quality. In a smoky office, in a dreary air-conditioned room, and in a street with serious automobile exhaust pollution, the number of negative oxygen ions in the human body will drop sharply, which will greatly affect the metabolism and health of the human body.

3. What effect does negative ion have on human body?

According to expert observation and research, it mainly has the following functions:

1 is the effect on the nervous system. It can enhance cerebral cortex function and brain activity, invigorate the spirit, improve work efficiency and improve sleep quality. Negative ions can also strengthen the oxidation process of brain tissue, so that brain tissue can get more oxygen.

2. This is the influence on the cardiovascular system. According to scholars' observation, negative ions can obviously dilate blood vessels, relieve arterial vasospasm and achieve the purpose of lowering blood pressure. Negative ions are also beneficial to improve cardiac function and myocardial nutrition, and are beneficial to the rehabilitation of patients with hypertension and cardiovascular and cerebrovascular diseases.

3. It is the influence on the blood system. Studies have confirmed that negative ions can slow blood, prolong coagulation time and increase oxygen content in blood, which is beneficial to the transportation, absorption and utilization of blood oxygen.

4. Negative ions have the most obvious effect on respiratory system. This is because negative ions enter the human body through the respiratory tract and can improve people's vital capacity. After testing, inhaling negative air ions in the glass mask for 30 minutes can increase the amount of oxygen absorbed by the lungs by 2%, while the amount of carbon dioxide discharged can increase by 14.5%, so negative air ions can improve and increase lung function.

The latest progress of negative ion science

At present, the world's leading high-purity air negative ion technology is an "ion converter" technology invented by Japanese scientist Moriguchi, MD, who is known as the "first person of negative ions". It is a patented technology that uses the natural resources of the earth to generate natural air negative ions. It is understood that this year, products and technologies related to this important invention have been introduced to China through the internationally renowned brand Sailumei www.serumi.com.cn founded by Dr. Horikou. The air negative ions produced by it are no different from those produced in nature, which is very suitable for regulating human body functions and plays an important role in improving physical fitness and maintaining health.

The introduction of this technology will bring China customers the most advanced environmental improvement equipment in the world, and will be able to meet the needs and tastes of the most critical building owners, families and car owners in China. With the release of Sailumei series products, the definitions of environmental improvement equipment and negative ion devices of top central air conditioners for home and vehicle are updated again.

Negative ions and negative oxygen ions

Negative ions include negative oxygen ions, but negative ions are not the same as negative oxygen ions, but only subordinate. Negative ion generators on the market can only release a very small amount of negative oxygen ions. So when shopping, we must pay attention to the difference between the word' oxygen'.

Relationship between negative ion concentration and health

The Journal of China Institute of Medical Prevention made an accurate list of the relationship between negative ion concentration in the environment and human health through experimental research:

Environmental negative ion concentration (each /cm3)

Indoor air-conditioned room 0-20 causes "air conditioning disease" symptoms.

40-50 induce respiratory diseases, insomnia, neurasthenia, allergic diseases, etc. in urban residential closed areas.

Edge of physiological obstacle induced by street greening area 100-200

City Park 1000-2000 Basic Needs to Maintain Health

5000-50000 in suburbs and seaside can enhance human immunity and antibacterial ability.

50000- 100000 sterilization in high mountains and seaside to reduce the spread of diseases.

100000-500000 forests and waterfalls have natural healing ability.

Ions are charged atoms (or atomic groups), positively charged ions are called cations and negatively charged ions are called anions. Generally, the ion size is not concerned, but only considered in coordination; The unit of measurement is angstrom, which is a smaller unit of atomic structure measurement than nanometer.

Ions are formed by the transfer of electrons through chemical reactions, and their characteristics depend on what ions and the charged electricity price, and have little to do with the ion size, and there is no nano-effect. It generally exists in the form of an aqueous solution. Colorless and transparent, without any solid particles, stable state.

Silver ion is silver in which the silver atom loses more than one electron, which means that silver exists in ionic state and is usually positively charged. Such as Ag+ 1, Ag2+, Ag3+, etc. Silver ion medical products have been listed in China Pharmacopoeia since last century, such as silver nitrate solution.

The oxidation activity of silver ions varies with the price, and the oxidation degree of +2 and +3 silver ions is high. The redox potential of Ag+ measured by voltammetry is (0.798 ev, 25℃), while Ag2+ has a higher redox potential (0. 102 ev, 25℃). The effectiveness of high-valent silver ions is 300 to 17000 times that of metallic silver or silver salts. Silver ions with high valence are also called active silver ions because of their high reduction potential.

Therefore, as far as "silver ion" is concerned, it is characterized by:

1. Silver ion is a positively charged "cation", which is formed by electron transfer through chemical reaction;

2. The application of silver ion depends on the nature of the ion and the charged electricity price, and has nothing to do with the size of the ion, so there is no nano effect.

3. Silver ions exist in the form of aqueous solution. Colorless and transparent, without any solid particles;

4. Silver ion drug products have been included in the national pharmacopoeia as early as last century, such as silver nitrate solution.