Our body is a huge reservoir for notorious pathogens that cause various diseases.
The International team of researchers from Huazhong University of Science and Technology, CSIRO Materials Science and Engineering, The University of Sydney in union with the City University of Hong Kong created a Handheld Plasma Flashlight that can kill disease-causing pathogens entirely.
How the Plasma Flashlight Works
In the experiment, the plasma flashlight penetrates deep into the very bottom of the layers to kill the bacteria. It effectively inactivates thick biofilms formed by pathogens, which makes them resistant against inactivation, even with the most antibiotic- and heat-resistant bacteria. This is a significant breakthrough because biofilms are notoriously difficult to eradicate and are often the cause of chronic infections.
The researchers ran a study to see what species were present in the plasma which enables it to kill pathogens and found highly-reactive nitrogen- and oxygen-related species. These reactive species are known to disrupt the cellular functions of bacteria, leading to their death. Ultraviolet radiation is also one of the reasons for the success behind the device. The combination of these elements creates a hostile environment for pathogens, ensuring their complete eradication.
Advantages Over Traditional Methods
Although high temperatures are commonly used in destroying pathogens, the temperature of the plume of plasma is very close to room temperature. This feature is crucial as it can prevent any damage to the skin, making the device safe for direct application on human tissues. Traditional methods like autoclaving or chemical disinfectants can be harsh and are not always suitable for all surfaces or materials. The plasma flashlight offers a gentler yet effective alternative.
The device also has its own resistors to stop overheating, making it safe to touch. This safety feature is particularly important for medical applications where the device might be used in close proximity to patients. The portability of the handheld plasma flashlight adds another layer of convenience, allowing it to be used in various settings, from hospitals to remote locations where traditional sterilization methods might not be available.
Moreover, the plasma flashlight could revolutionize the way we approach sterilization in various industries. For instance, in the food industry, it could be used to sterilize surfaces and equipment without the need for harsh chemicals. In the healthcare sector, it could be employed to disinfect surgical instruments and even wounds, reducing the risk of infections.
Another potential application is in the field of dentistry. Dental tools and surfaces are prone to contamination, and the plasma flashlight could provide a quick and effective way to ensure they are pathogen-free. The device could also be beneficial in public health settings, such as in schools or public transportation, where it could be used to disinfect high-touch surfaces.
The development of the handheld plasma flashlight is a testament to the power of interdisciplinary collaboration. By bringing together experts from various fields, the team was able to create a device that addresses a critical need in pathogen control. This innovation could pave the way for further advancements in plasma technology and its applications in healthcare and beyond.
Via: Geeky Gadgets
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