Since the outbreak of the new coronavirus in 2019, it has affected the lives of hundreds of millions of people worldwide. Since then, humans have begun to fight the virus. Although the virus has been effectively controlled, it is impossible to give a clear timetable to say goodbye to the virus completely.
Currently, the detection methods for the new coronavirus mainly rely on swab collection, and then nucleic acid testing . However, these operations not only require professionals and testing laboratories, but also may increase the infection risk of medical personnel.
Can
develop a wearable smart device that allows it to self-service detection of various viruses to reduce the risk of medical staff and mass infections? Today, I will talk to you about this black technology that will benefit mankind in a plain language.
In fact, this technology has been deeply developed by relevant scientific research institutions. At present, this scientific research result has been published in the review journal "Matter".
It is understood that this technology was developed by the Tongji University research team and is intended to be used as an early warning system to prevent future outbreaks of respiratory infectious diseases. In order to improve the mobility of this device, the team also placed this intelligent detection device into a mask, greatly improving the convenience of use. The biggest advantage of a mask like
is that the wearer only needs to wear the mask and then the mouth is. After starting the device, it can self-detect the surrounding viruses and obtain relevant data in real time.
's specific working principle. Since it involves medical terms, the editor has only a little understanding. In short, it is used to detect the air we breathe. As long as this smart biological mask is connected to the network, this mask will automatically transmit real-time data to the user's mobile device. If a virus sample is detected, the system will also issue an alarm reminder.
According to the researchers, this device can detect trace-scale liquid samples 560 times smaller than the volume of liquid produced by a sneeze, and the minimum unit can be as low as 0.3 microliters. In order to make the detection effect more accurate, the researchers also used a dual solvent system to improve the compatibility of lipophilic ionic liquids and hydrophilic PVA to form a uniform ionic gel network, thereby achieving the purpose of improving the sensitivity of the device.
So, what is the detection efficiency of this intelligent biological detection device? According to Fang Yin, materials scientist at Tongji University, this mask works well in poor ventilation and high infection risk spaces, and trace pathogens in the air can be detected within 10 minutes. In addition, the device also supports updates. If a new respiratory virus appears in the future, it can also be used to detect new pathogens.
In fact, this intelligent biodetection device is being developed in more than one university in China. After the outbreak of the new coronavirus, Tianjin University is also developing similar bioelectronic masks, and the relevant results are issued in the authoritative academic journal "Biosensors Bioelectronics".
In addition, researchers from Harvard University and in the United States are also developing a wearable biosensor , which is also installed on masks. It is mainly used to detect whether there are nucleic acids related to the new coronavirus in users' breathing. The research and development results have also been published in the scientific journal of Nature Biotechnology in June 2021. However, the biosensor they developed must provide results within 90 minutes, and the detection efficiency is far lower than that of bioelectronic masks among us.
It is understood that this new intelligent bioelectronic mask can be widely used in rapid screening of potential virus infections by airports, customs, hospitals, etc. once mass-produced.
At present, it is not clear how high the manufacturing cost of this electronic biological mask is, and it is not known whether it will be popularized for civilian use in the future.