Succeeded in developing nano-robot capable of moving in the blood and accurately attacking cancerous tumors

ByKanijoman

The most frequent "cancer" in the cause of death of the Japanese in recent years is a dark image such as "You will not get cured when you become cancer" or "You will suffer for a long time with anticancer drug treatment". However, if you use a newly developed "Nano Robot that moves in the blood and can accurately attack cancer tumor", it may become possible to eliminate side effects caused by anticancer drugs.

Scientists Have Created Nanorobots That Can Travel Down the Bloodstream and Precisely Target Cancerous Tumors
http://sciencenewsjournal.com/scientists-created-nanorobots-can-travel-bloodstream-precisely-target-cancerous-tumors/


Researchers such as McGill University, Montreal University, Montreal Science and Engineering University, succeeded in developing a nano-robot capable of destroying cancer tumors by moving in the blood. As the leader of the research team,NanoRobotics LaboratoryProfessor Sylvain Martel who will serve as director. According to Professor Martel, the newly developed nano robot can hold as many as 100 million bacteria and can also promote it on its own. Because it is possible to have a large amount of medicine in bacteria possessed by this nano robot, using a nano-robot makes it possible to carry drugs such as anticancer drugs directly to the tumor part in the body.

When a nano-robot reaches close to a specific tumor in the human body, it automatically detects the tumor. In the tumor environment, hypoxia is created by proliferation of tumor cells and distance from the blood vessels, but as this nano-robot detects this hypoxic condition, it is possible to accurately detect where the tumor is It seems to be getting.

ByAJC 1

Many treatments for cancer, including conventional radiotherapy, were unable to effectively exploit this hypoxic condition. This is because there was a tumor beyond the pathway that crosses the physiologically complex microenvironment and even small blood cells pass. In order to overcome these circumstances, the research team of Professors Martel developed nano-robots using nanotechnology.

Bacteria have the property of being attracted toward the direction of the magnetic field created by the connection of magnetic nanoparticles and the property of approaching the active area of ​​the tumor. By using this characteristic, exposing bacteria to a magnetic field controlled by a computer makes it possible to move the nano-robot to the position of the tumor accurately.

The following movies are performing experiments using the property that bacteria are attracted toward the direction of the magnetic field. We can see that we have developed a nano-robot that uses this property to pinpoint the tumor.

Robotic Micro-Assembly Process - YouTube


Magnetic momentumBacteria have helical fibers called flagella, which are used to gain propulsion.


As the direction of the magnetic field (B) changes, the direction of movement of bacterially migratory bacteria also changes.


The following scenes are moving the bacteria making full use of this characteristic. A larger black circle moves in the direction of the arrow marked "B".



Furthermore, by controlling the magnetic field with a computer ......


It is also possible to gather magnetically migrating bacteria scattered apart in one place.


By gathering magnetic migration bacteria, we can perform relatively complicated micro manipulation.


For example, in the scenes below, we are trying to create 5000 small pyramids by collecting 5000 magnetically migrating bacteria. It is hard to understand what is being done in the photograph, but you can see that when you watch the movie you are manipulating the herd of bacteria quite freely.


Chemotherapy attempts to treat cancer using substances that are toxic to the human body. However, if you use the nanobybot that was announced this time, it will be possible to inject anticancer drug directly into the tumor, so it may become possible to eliminate side effects of anticancer drugs.

Professor Martel commented that more innovative technologies will be developed using the nano-robot that was announced this time.