In the tissue culture room of the plant factory, the LED solar simulator of Saifan Optoelectronics is precisely regulating the photosynthesis of lettuce seedlings with a ratio of 450nm blue light to 660nm red light. This "artificial sunlight", which has been optimized through 23 combinations of light qualities, has increased the vitamin C content of leafy vegetable crops by 40%. As photobiotechnology moves from the laboratory to fields such as smart agriculture and medical health, Saifan equipment has become the core tool to crack the "light-life" interaction code.
I. Light Quality Programming Capability: Customizing the "Light Formula" for Life Activities
Relying on multi-channel spectral synthesis technology, the Saifan simulator achieves precise regulation in the field of photobiology:
Plant light formula development: At the Chinese R&D center of Ansa Group in the Netherlands, the equipment simulates the spectral characteristics at different altitudes (such as strong ultraviolet light at high altitudes/scattered light in rainforests), and screens out the photoperiod scheme suitable for lycopene accumulation, making the functional component content of greenhouse tomatoes 1.8 times that of open-field cultivation and shortening the harvest cycle by 7 days.
Phototherapy parameter optimization: A continuous adjustable light source ranging from 380 to 1000nm was customized for the phototherapy center of a tertiary hospital. Through testing the repair effects of different wavelengths on psoriasis lesions, it was found that the synergistic effect of 311nm narrow-band UVB and 630nm red light could increase the cure rate by 25%. The relevant plan has been included in the "Chinese Clinical Guidelines for Phototherapy".
Microalgae cultivation regulation: By using pulsed light technology to simulate the light intensity changes in the ocean's light-transmitting layer, the protein content of spirulina was increased from 58% to 65%. Based on this, a certain biological enterprise built a functional microalgae production line with an annual output of 300 tons.
Ii. Biocompatibility design: Meets the requirements of harsh experimental environments
In view of the particularity of life form testing, the equipment has made dual breakthroughs in terms of safety and stability
Stroboscopic output: Utilizing high-frequency PWM dimming technology, the stroboscopic index is less than 1.2, avoiding the interference of light fluctuations on the biological clock research of fruit flies. As a result, the sleep experiments conducted by the School of Medicine at Tsinghua University have obtained more stable behavioral data.
Low-temperature light source system: The surface temperature of the light source is controlled below 35℃. In the photosensitivity test of zebrafish embryos, the influence of light source heat dissipation on water temperature is eliminated, and the experimental error is reduced to ±0.3℃.
Sterile grade structure: The light outlet is made of medical-grade quartz glass, supporting 134℃ high-pressure steam sterilization, meeting the long-term light experiment requirements in the cell culture box. It has passed the ISO 13485 medical device quality management system certification.
Iii. Industry Applications: Technology Transformation from Laboratory to Industry
The field of smart agriculture
Sinochem Modern Agricultural Research Institute used the Saifan simulator to study the effect of different light qualities on the expression of wheat lodging resistance genes. It was found that 730nm far-red light can increase the cellulose content of the stems by 12%. The light-controlled cultivation technology developed has been promoted in 100,000 mu of the Huanghuaihai production area.
Medical and health field
Based on the test data from Saifan equipment, a certain biotech company has developed a blue light treatment device for jaundice in premature infants. By optimizing the irradiation intensity distribution of 460nm blue light, the treatment time has been shortened from 48 hours to 24 hours, and the incidence of adverse reactions has decreased by 60%.
The field of food preservation
In the central kitchen of Hema Fresh, the UV-visible composite light source system customized by Saifan, by simulating specific wavelengths of sunlight, extends the shelf life of strawberries from 3 days to 7 days while retaining over 90% of anthocyanin content. This technology has applied for an invention patent.
Iv. Data Empowerment: Building a "Database" for Photobiological Research
Saifan Optoelectronics, in collaboration with the Chinese Academy of Agricultural Sciences, has jointly established a database of photobiological effects, which has cumulatively included:
The light response curves of 137 crops
The light sensitivity parameters of 42 types of microorganisms
Data on the light absorption characteristics of 28 human tissues
These data support the development of light control systems in smart agriculture, the parameter calibration of medical equipment, and even the sun protection index testing of cosmetics, leading "photobiotechnology" from empirical exploration to data-driven precise research and development.
When humans began to actively design light environments to optimize life activities, the accuracy of spectral regulation directly determined the quality of application effects. The Saifan LED solar simulator, playing the role of a "spectral decoder", provides a full-chain solution from basic research to industrial application for photobiotechnology, ensuring that every ray of light can precisely serve the needs of crop yield increase, disease treatment, food safety and other people's livelihood.
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