Blu ray LED latest technology: let pests "see light die"

Review: 2014, Japanese scientists Akasaki Yong, Amano Hiroshi and Japanese American scientist Nakamura Shuji for research on blue LED contributions was awarded the Nobel prize in physics. This incident has greatly stimulated the Japanese scientists to continue to struggle for the people's lives in their research areas. As far as LED is concerned, although the public is unfamiliar with the term, it does change the lighting of millions of households.

Recently, Tohoku University Japan in the journal Science report published research papers show that scientists have found a new Blu ray LED direction. When the blue light LED is at the correct frequency, it will evolve into an effective and convenient, natural and harmless new insecticide. For the first time, researchers have found that the visible light in the blue spectrum is a deadly weapon to kill mosquitoes and flies.

1 different colors of light source insecticidal effect

The research team of Northeastern University, which is composed of four scientists, is an experimental group of flies, mosquitoes and flour beetles, and has completed the experiment of the effect of light source on insects. In the growing period of the three species of insects, which grew from young eggs to adults, the researchers studied them at different angles and with different intensities of light. The results are very interesting. The scientists found that when light from ultraviolet (378 nm) into a visible blue light (508 nm), the insects can not escape the fate of annihilation. However, red light and yellow light can not do harm to insects.

2 depending on the type of insect under the light"

More interesting is that the wavelength of light is not consistent with its insecticidal effect. For example, the effect of 467 nm of light to kill the fruit flies significantly more than any other wavelength light source; and the light source of 417 nm is excellent for mosquitoes. This means that each species has its own unique "lethal wavelength", which is closely related to their life habits. Mosquitoes are accustomed to flying in strong sunlight, and can resist most of the light source, but the high intensity of ultraviolet radiation is the death knell. Flour beetles live in a dark environment, and they will become very fragile at 404 to 467 nm. In view of this, we must deal with these insects.

3 Blu ray LED working principle

So what we can't wait to know is how it works. Although a series of experiments are beyond the reach of ordinary people, Northeastern University researchers believe that the principle of the blue light LED in the insecticidal effect and ultraviolet radiation can destroy the cells are basically the same. Scientists said that the blue and ultraviolet wavelengths can effectively promote a reactive oxygen in irradiated insects (ROS) of the generation of reactive oxygen molecules, will destroy a large area of insect cells and eventually caused his death. Although it is not known how to make good use of disinsector blue LED, but at least we can be sure that the light has obvious effect in the above pest control. If further research is needed, the scientists will be able to benefit mankind in a safe and cost-effective manner in food production and disease control.