Ultra-small glowing nanoparticles "nanolith" will change the world such as medical technology, technology, life

ByPlasma Chem

By absorbing the light energy of a specific wavelength and releasing again, it is also possible to display a part where a hole is opened in a blood vessel, to become a fluorescent substance on a TV screen, or to detect diseases such as cancer Sexed "nanolight" may change the world in the future. There seems to be a lot of possibilities for small substances that are as small as viruses, several nanometers in size.

The nanolight revolution is coming: Nature News & amp; Comment
http://www.nature.com/news/the-nanolight-revolution-is-coming-1.19482

It is a research and development center in the international biomedical field located in SingaporeBiopolis, Experiments were being conducted to inject a special solution of bright yellow into the blood vessels of the anesthetized mouse. Mr. Chi Ching Goh, Ph.D candidate applicant (Ph.D candidate) to proceed with the experiment, puts the mouse in the equipment to irradiate ultraviolet light and observes the ear part of the mouse with a microscope. And when turning on the ultraviolet irradiation switch, the blood flowing through the blood vessels of the ears of the mouse glows green and it succeeded to clearly show the flow of blood flow in the finely stretched blood vessel.

This observation was made possible by injecting a solution containing only a few tens of nanometers in size mixed with a substance "nanolite" of approximately the same size as the pathogenic virus. Unlike the contrast agent which creates a shadow by shielding X-rays to make the blood vessel easier to see, this nanolite has the feature of absorbing light of a specific wavelength and emitting light of another wavelength, so that medical treatment Even at the site of the scene, the view that expects great potential is expanding.

Materials similar to nanolite are also found in, for example, jellyfish that emit light themselves, rare earth compounds, etc. However, compared to these substances, nanolith has features that can stably emit light about. Also, because it is rich in type and relatively easy to create, it has come to be noted from industrial fields and academic fields.

ByCliffano Subagio Follow

There are several types of nanorite, one of which is sometimes made in a semiconductor materialQuantum dotWhat is called. This is a term that refers to things in which electrons in matter are in a special situation, and is known for releasing vivid light. In addition, recently another new nanolite has come to be known. Among them are some that absorb a lot of low-energy photons and convert them into high energy photons by combining their energy, and some are composed of polymeric or small organic molecules, which are quantum Since it has the characteristic that it is less toxic to animals than dot, it is expected to be diverted to medical field and so on.

Bin Liu, an engineer at the National University of Singapore, who creates the fluorescent material used by Mr. Goh, said, "I was surprised to understand that you could create brighter organic matter than inorganic matter," he told about the usefulness of the new nanolith It is. The utility of nanoliths is expected to be diverted to the following large-scale flat display, medical field, solar energy field, DNA mapping, motion sensing, and surgical technique.


Nanorite came to be noticed as it dates back when quantum dots were discovered in 1981. When a Soviet scientist was making crystals of cuprous chloride on silicate glass, I discovered that the color of the glass is determined by the size of that particle. This is because the size of the crystal is too small to be influenced by quantum mechanics and it has become able to show the behavior similar to that of an atom so that light of a specific wavelength can be absorbed and released. From this, the color of light emitted is to be influenced by the size of the particle.


Nanorite is a field in which research is still in progress, with things with various characteristics, and a state where new creation methods etc. are clarified. In the future, new goal is to establish the preparation method and high efficiency of luminescence performance, and when these are put into practical use, not only the development of medical technology, but also health monitoring of smart phones and automatic driving cars, even older families It is expected that utilization is also expected. When paying attention to future technology, the keyword "nanolite" seems to be worth remembering.