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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.
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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.
A particulate air filter is a device composed of fibrous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air. Polyacrylonitrile (PAN) is a versatile polymer used to produce large variety of products including ultra-filtration membranes, hollow fibers for reverse osmosis, fibers for textiles, oxidized PAN fibers. Nanofibers with smaller thickness and higher surface area than that of regular fibers, have enormous applications in filtration. To do it, electrospinning is one of the most attractive and effective processes in the production of continuous nanofibers from synthetic and natural polymers.
The latest evolution in the filtration industry is the use of nanotechnology in this field. With this technique, the surface of large cellulosic or synthetic fibers (usually 10 to 30 micrometers in diameter) is covered with a layer of ultra-fine nanofibers (typically 50 to 400 nanometers in diameter). In this method, before the pleating process, the filter paper is covered with a layer of polymeric nanofibers with diameter of 50 to 300 nanometer by using an electric field. Nanofibers form because of the existence of a large potential difference.
Optical mirrors are designed to reflect light in a variety of applications such as light steering, interferometry, imaging, and general applications. These mirrors are widely used in the various industries, especially in the automotive industry. In conventional mirrors, the unwanted light scattering has negative effects on the efficiency and product performance, as far as it reduces the visibility. Nanocoating technology improves the performance of these mirrors, in a way that is minimizing the light scattering.
The Covid-19 IgG/IgM rapid test cassette is a rapid and qualitative assay for the detection of antibodies to Coronavirus. This kit has two aluminum packs including a Test cassette and a silica gel, lancet, dropper and an alcoholic pad. Rapid test kit Covid-19 is used for 15 minutes in a room temperature and the result will appear will appear within 3 to 15 minutes, also the result may not be reliable after 20 minutes.
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 |
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