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The principle of pulse light sterilization is the same as that of ultraviolet sterilization, both of which destroy the structure of DNA
However, from the characteristic spectrum of the pulsed light spectrum, it can be seen that only the 254nm characteristic spectrum of the UV lamp is within the effective sterilization area, while the absorption spectrum of DNA has a characteristic spectrum line of 265nm. The pulsed light is full spectrum light, especially in the effective sterilization ultraviolet band (200-280nm), which has the maximum energy output. According to the integrated energy calculation, the instantaneous effective sterilization energy of the pulsed light (207J injection energy) is 100000 times that of the UV lamp energy
Moreover, pulsed light has a strong near-infrared output spectrum, and near-infrared light has a hot wire effect on bacteria. When observing the surface of bacteria irradiated by pulsed light under an electron microscope, significant thermal damage can be observed
UVC sterilization+NIR effect+continuous pulse superposition, pulsed light shows excellent sterilization effect, even spores can be completely killed under a few pulses.
The basic principle of using ultraviolet radiation in traditional ultraviolet systems is the same, but each system provides unique technical advantages and disadvantages. The XONON robot of Pengfeng Purple Light provides millisecond level pulse flashes, a high-voltage electric field of tens of thousands of volts, and then pulses three times per second to eliminate dangerous microorganisms. The XONON robot achieves sterilization through four methods: 1. Photohydration: Strong UV-C light damages the cell wall structure, hydrates cells, and causes damage to cell function. 2. Photodecomposition: Strong UV-C light breaks down DNA molecular chains, disrupts DNA phosphate skeletons, and causes structural damage to cells 3. Photocrosslinking effect: Strong UV-C light triggers intermolecular cross-linking of proteins, causing tissue damage to cells 4. Photosynthesis: Strong UV-C light promotes the re synthesis of elements that make up DNA and RNA, causing biological damage to cells
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