[Scientific and technological achievements] Air purification gel

This week, 31 provinces, autonomous regions and municipalities and the Xinjiang Production and Construction Corps have cured more than 60000 cases, and the current situation of epidemic prevention and control has been initially shown to continue to improve, production and living order to accelerate the recovery of the situation. In this war, our soldiers in white have always struggled on the front line of the fight against the epidemic, doing their best to protect the lives of every patient. At the same time, scientific researchers are also fighting side by side in research and development positions, stepping up various research and development work related to the fight against the epidemic, and providing strong support to the white soldiers.

I believe you have learned from previous reports that the scientific research teams of high-end institutes have used science and technology to help fight the epidemic.The air purification gel developed by the micro-nano technology research team of our hospital's table interface.

 

science and technology research and development

At the beginning of the outbreak, in the National Health Commission's new crown pneumonia answer, it was pointed out that the coronavirus is sensitive to heat, 56 degrees C 30 minutes, ether, 75% ethanol, chlorine disinfectant, peracetic acid and chloroform can effectively inactivate the virus. Among them, chlorine-containing disinfectant refers to a disinfectant that dissolves in water to produce hypochlorous acid with microbicidal activity. Its microbicidal active ingredients are often expressed as effective chlorine, and the more common ones are 84 disinfectant, bleaching powder/water, chlorine-containing disinfection powder or chlorine-containing effervescent tablets.

However, the nature of chlorine-containing disinfectants is unstable, susceptible to light, heat and humidity, loss of its active ingredients, and instability after dissolving in water. At the level of high-level disinfection, chlorine-containing disinfectants can be replaced by peracetic acid, hydrogen peroxide and chlorine dioxide. Among them, chlorine dioxide is internationally recognized as safe, non-toxic green disinfectant.

Chlorine DioxideWhy can stand out in many disinfectants?

Small make up this and introduce the many advantages of chlorine dioxide.

 

Advantages of Chlorine Dioxide

1. Broad spectrum

Can kill viruses, bacteria, protists, algae, fungi and a variety of spores and spore-forming bacteria;

2. Efficient

0.1ppm can kill all bacterial propagules and many pathogenic bacteria, 50ppm can completely kill bacterial propagules, hepatitis virus, phage and bacterial spores;

3. Small effect by temperature and ammonia

The germicidal efficacy was basically the same at low and higher temperatures;

A wide range of pH applications

Can maintain high sterilization efficiency in the range of pH2 ~ 10;

5. Safety without residue

No "three-induced" effect (carcinogenic, teratogenic, mutagenic), no chlorination reaction with organic matter, no three-induced substances and other toxic substances;

This one introduced in this issueAir purification gel is to use chlorine dioxide as the active ingredient for disinfection and sterilization. Is it a moment to feel good at ease, no longer have to struggle "will produce chlorine" this kind of problem. Of course, this air purification gel is not only a safe composition, there will be more detailed introduction.

 

science and technology innovation

regular chlorine dioxide disinfection, is the use of chlorine dioxide aqueous solution spray, so for one-time disinfection is very effective, but can not be long-term, continuous disinfection. At the same time, recent studies have taken a cluster of 13 people infected by public transportation as a case to explore the possibility of the spread of new coronavirus aerosols in a closed environment. The study found that the new coronavirus has a strong ability to spread, with a maximum distance of 4.5m in airtight air-conditioned compartments, and the virus can float in the air for at least 30 minutes and cause infection.

Then comes the question!

How to effectively kill the virus floating in the air?

How to achieve long-term continuous disinfection?

High-end hospitalTable Interface Micro-nano Technology Research TeamCombined with its own scientific research and technology reserves, the combination of years of research and development results and advanced technology, in view of the current urgent needs of disinfection and sterilization, race against time, emergency scientific research, in the early stage of the new coronary pneumonia epidemic to develop and batch test output a batchAir purification gel with slow-release chlorine dioxide technology as the core.

 

This air cleaning gel uses S-RCD technology, Slow-Release Chlorine Dioxide (slow release gaseous chlorine dioxide technology).The characteristics of chlorine dioxide, the molecular weight is very small, the drift distance is far. Using the principle of gaseous slow release, through the Brownian motion diffusion of gas molecules, the concentration of 0.01-0.03ppm has a good disinfection and sterilization effect, that is, in.Under the condition of low concentration, there is a good disinfection and sterilization effect..

So the key technology of this air purification gel"Slow Release 」Is how to achieve it?

The technical breakthrough is that the organic gel is used as the carrier of chlorine dioxide slow-release reaction, which can reduce the oxidation reaction speed of chlorine dioxide, and the slow-release time is easier to control, so as to achieve a stable chlorine dioxide concentration in the air for a long time in a certain area, achieve long-term continuous disinfection, and play a role in preventing the spread of viruses.

 

Do you think this air purification gel is better and full of skills ~

Below, Xiaobian for everyone to tidy up the many advantages of air purification gel, take a look at it.

Air Purification Gel Advantages

1. Strong sterilization

It has the characteristics of wide diffusion, strong penetration, high efficiency and rapid sterilization.Detected by a third-party authority, the killing rate of many common bacteria such as Staphylococcus albus can reach 99.9 percent. The chlorine dioxide component can kill microorganisms such as bacterial propagules, viruses, bacteriophages and bacterial spores while sterilizing.The inactivation of viruses and bacteria is more effective and faster than O₂ (ozone) and Cl₂ (chlorine).And its volatile concentration is only 1/3 of the exposure limit of 0.1ppm recommended by the National Occupational Safety and Health Association of the United States, which will not affect human health while ensuring the killing effect.

2. Safe and non-toxic

The active ingredient is chlorine dioxide (ClO₂), which is internationally recognized as a safe and non-toxic green disinfectant. It is often used for disinfection of drinking water, food, and medical equipment. No "three to" effect (carcinogenic, teratogenic, mutagenic), at the same time in the disinfection process does not occur with organic chlorine reaction, the generation can produce "three to" organic chloride or other toxic substances.

The products have been tested by the international authoritative inspection and testing and certification body SGS. The results show that the air purification gel is non-toxic and harmless, and has no stimulation to the human body.

　　

3. Sustained release lasting

The organic gel is used as the carrier of chlorine dioxide slow-release reaction, and the formula and form of the gel and the slow-release device reduce the oxidation reaction speed of chlorine dioxide, so as to achieve long-term continuous disinfection and prevent the spread of viruses. At present, the release concentration can be controlled between 0.01ppm and 1ppm.Long-term maintenance of disinfection and sterilization effect, can be sustained release 1-2 months, no window period.

4. Convenient and fast

The use of ordinary disinfectant spray, there will be dead spray, and this gel isFree volatilization without dead angle. One bottle corresponds to 10-20 square meters of room use,Open and UseEasy and safe!

5. Air purification

Dehydration reaction with other odorous substances and rapid oxidation of odorous substances into other substances, to achieveIn addition to formaldehyde and odorThe effect.

6. Colors Visible

With the disinfection and sterilization of the active ingredient chlorine dioxide,Gel color gradually changes from bright yellow-green to colorless. When the gel color becomes colorless, it can be replaced in time.Through the gel color to judge the margin, the use of progress at a glance.

 

application value

With the gradual closure of the various cabin hospitals, the national new coronary pneumonia epidemic prevention and control situation actively to the good situation continued to accelerate the expansion, but we should not take it lightly, still need to do a good job of epidemic prevention and control measures. This air purification gel can not only be used in hospitals, re-working enterprises, public transport and other places of disinfection work, but also can be used for daily disinfection and sterilization of the family.

This small air purification gel is not only safe in composition, but also very simple to operate. Just open the cover and place it aside, TA's work will begin, and it is in uninterrupted mode ~

 

Team Introduction

In the micro-nano technology research institute, there are not only the Yangtze River scholars and the Ministry of Education's new century talents and other leading talents in scientific and technological innovation, but also doctors and high-end talents from well-known universities at home and abroad. The team relies on the accumulation of scientific research achievements in the Department of Mechanics and the State Key Laboratory of Tribology of Tsinghua University for decades, with the policy support of Tianjin and the technical support of Tsinghua University, realize the industrial transformation and application of self-assembly filter coating, self-assembly coating oil-water separation, super-hydrophobic surface preparation and other technologies, carry out the transformation of self-assembly technology-related achievements, scientific research industrialization, technical support and product services, and establish the operation mode of related products.

Cai Hui is a civilian product brand created by Tianjin Qingke Environmental Protection Technology Co., Ltd., a derivative industrialization company of Tianjin High-end Equipment Research Institute of Tsinghua University. It is committed to "improving life with the wisdom of materials". Some advanced material technologies, such as nano materials, polymer materials, composite materials, etc., are applied to all aspects of people's lives to make life safer, healthier and more comfortable, painted life ".

 

Technical docking and business negotiation

Contact: Liu Mingyi

Tel: 022-84999163

Mobile phone: 18322397456

E-mail: liumy@tsinghua-tj.org

 

Source | Table Interface Micro-nano Technology Institute

Editor | Zhang Shu

The final interpretation right of the above related technologies belongs to the Institute of Micro-nano Technology of Table Interface.