L.V. Zhorina1, V.V. Trushina2

1 Bauman Moscow State Technical University (Moscow, Russia)

2 LLC Center for Certification and Registration of Medical Devices (Moscow, Russia)

Acne of varying severity is a widespread disease. One of the methods of treatment is the use of drugs containing antibiotics. However, the resistance of microorganisms to antibiotics is growing and their use for the treatment of acne is becoming ineffective. In connection with the above, there is a need to find an effective method of treatment that does not cause addictive of bacteria. Such method includes irradiation of the skin surface with blue-band radiation. Our goal was to develop a chip device for home use by the population. The paper describes the development of a matrix irradiator on LEDs with radiation at wavelengths of 405, 410 and 415 nm. The choice of the blue range instead of UV is due to the fact that according to the requirements of GOST 28369-89 of 01.01.1991, medical devices emitting UV cannot be used at home. The blue wavelength range of the visible part of the spectrum has both antibacterial and disinfecting properties, which has been confirmed by many studies. It also includes the maximum absorption of bacteria that disrupt the normal functioning of the skin and cause their diseases. The choice of several wavelengths is due to some difference in the depth of their penetration into the biological tissue and taking into account the type of skin (oily, dry or combined). The most rational arrangement of LEDs on the radiator matrix is calculated, taking into account the requirements of compactness, uniform illumination at the expected depth of bacteria, ease of attachment, grouping. Radiation control and mode selection takes place via a smartphone. An Aduino nano is used as the main chip, control and communication with the smartphone takes place using the HC-06 Bluetooth module. Selected materials for the manufacture of the case. The results of preliminary testing of the device proving the effectiveness of the method are presented.

Zhorina L.V., Trushina V.V. Development of a biotechnical system for the treatment of inflammation caused by C. acnes. Biomedicine Radioengineering. 2022. V. 25. № 5. Р. 92-97. DOI: https://doi.org/10.18127/j15604136-202205-09 (In Russian)

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