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With increasing of pollutants and airborne infected particles as well as respiratory infection such as influenza and Covid-19, use mask to blocking the entrance of air pollution and pathogens from breathing ways become a necessity.
Respiratory masks are made with several non-woven layers consisting of Spunbond, SMS and Meltblown that mainly made of woven polypropylene fibers. Meltblown and SMS layers play the main role in air filtering from suspended particles and dust and spunbond is the protector of middle layers in Mask.
Nanofibers because of having high surface area, high length to width ratio, and low density are able to eliminate the large amounts of particles during the filtration process.
NanoScale Certification
FDA approved
IMED
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Introduction
Silver nanoparticles have been used as colloidal silver for more than 100 years. Historically, colloidal silver containing silver with different concentrations and particle sizes has been widely used to treat wounds and infections. Penetration of silver into the bacteria cells induces a high degree of structural and morphological changes which lead to the death of that cell. Silver nanoparticles can prevent the growth or adhesion of bacteria onto the surface. This can be especially useful in the operation room, where all surfaces in contact with the patient's body should be sterilized. In addition, silver nanoparticles can be incorporated into a variety of surfaces, such as metal, plastic, and glass. This product has been introduced into the market with two different concentrations:
Introduction
Filter plus is a masterpiece filter using sophisticated technology containing silver nanoparticles for significant reduction of harmful substances in shisha smoke and bacteria transferred from the shisha hose. Disposable oral hookah filters cause a remarkable decrease in harmful hookah smokes.
This filter with its Nanoparticles can absorb and separate particles existing in hookah smoke. So far, more than 4,000 chemicals have been found in tobacco that contains compounds such as nicotine, free radicals, harmful gases, volatile organic compounds, aldehydes, aromatics, etc. Most of these compounds cause problems such as cancer and vascular heart disease.
A detergent is a surfactant or a mixture of surfactants with cleaning properties in dilute solutions. Detergents are commonly available as powders or concentrated solutions. An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable). Emulsions are part of a more general class of two-phase systems of matter called colloids. Nanoemulsions are emulsions in which the droplet sizes are less than 100 nm. A typical nanoemulsion contains oil, water and an emulsifier. Since microemulsions are thermodynamically stable systems in equilibrium, they are sensitive to changes in temperature and composition. Therefore, nanoemulsions are attractive for aforementioned applications because they are relatively the least sensitive to physical and chemical changes and they can be kinetically stable over long time scales. This product is an alcohol free nanoemulsion that is used as a detergent for cleaning and polishing a variety of surfaces. The products made by this company are as follows:
This kit based on Real time PCR method determines the presence of Covid-19 virus genome in any stage of infection with high sensitivity and accuracy. The acceptable specimens for using of this kit are specimens including nasopharyngeal or oropharyngeal aspirates or washes, nasopharyngeal or oropharyngeal swabs, broncheoalveolar lavage, tracheal aspirates, and sputum.
| Component Part | Volume (µL) |
| One step RT-PCR mix | 500 |
| Multi probe/primer Mix (E, RDRP, IC genes) | 500 |
| Multi positive control (RdRp and E genes) | 100 |
| RNase Inhibitor | 100 |
| Nuclease Free water | 500 |
RDSS is a real-time ROS detection system in a fresh sputum sample that contains respiratory and inflammatory cells (active for ROS production) with the assistance of an electrochemical sensor including a nanostructured material sensitive to ROS. The device has the certificate indicated in letter No. 664/46323 issued on 05/13/99 from the Medical Equipment Department of the Ministry of Health of the Islamic Republic of Iran. This system is suitable for screening normal people without clinical symptoms or with mild symptoms to warn against quarantine and additional tests for COVID-19, as well as for the use of acute and chronic respiratory diseases based on ROS sputum.
Due to the high importance of True Positive during the COVID-19 pandemic, warning to perform additional tests (CT-Scan and RT-PCR) for apparently normal cases or even with mild symptoms whose ROS results have been positively scored by RDSS would be useful. Software of the device was calibrated according to the ROS levels of more than 300 samples of sputum. COVITEST can be used to suggest additional clinical examination on suspicious people. The disposable sensing tool of the system would be entered to sputum sample and showed the ROS levels in less than 30 seconds. So, it is very useful in the initial examination of apparently normal people, especially asymptomatic cases.
The use of plastic bags is a convenient and hygienic way to collect waste. Plastic bags are very lightweight, and are especially suitable for wet rubbish like food waste. The waste bags containing food waste and other spoilable materials are a suitable place for growth of bacteria which can cause contamination. The antibacterial nanoparticles prevent the growth of microorganisms which lead to contamination. The antibacterial nanoparticles prevent growth of microorganisms which give birth to spoilage and contamination. Zinc oxide nanoparticles show a strong antibacterial activity against the pathogenic bacteria such as E. coli and S. aureus. Addition of these kinds of nanoparticles to the waste bags can create antibacterial properties in them.
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