Materials like graphene may promote proton therapy

Scientists in Singapore say that a new twist on pencil graphite can be an important component for better cancer treatment. The graphite is made up of steep layers of graphine, which is a single atom-ride sheet of carbon atoms arranged in repeating hexagonal rings. Now add the octagon of the pentagon, septagon, and carbon atoms to the sheet, and you are looking for one New form of ultra-skin carbon This proton promises to accelerate the beam of sub -quantity particles used in therapy.

Proton therapy has been used in proton therapy to filter particles in high precision beams to kill tumors. But, they take time to make and often the manufacturing process causes impurities that reduce the accuracy of the beam. In research described in Nature nanotechnology, Jionag Lu And his Co -workers in National University of Singapore and China A technique is developed that can develop a 200-mileimeter sheet of a new type of ultra-thunder carbon material in just three seconds, with no detectable impurities.

Proton therapy is a non-invasive radiation treatment in which hydrogen ions are accelerated through a cyclotron to produce a high-energy beam used to destroy DNA in the tumor. In a cyclotron, an electromagnetic field accelerates the ions of molecular hydrogen, which the spiral is outward because they raise speed. They then attack a carbon foil that removes the electrons of hydrogen, leaving the machine out as a high-energy beam. Proton therapy is often preferred as treatment due to its accuracy. The sharp beam eliminates the tumor while preserving healthy tissue. The new carbon promises an even faster and more energy-intensive ray, possibly makes treatment more powerful.

The benefits of the new content, called ultra-clean monolir unaccounted carbon (UC-MAC), are obtained from its disorganized ring structure, contrasting with the correct hexagonal ring in the graphine. The structures present in UC-Mack make small holes in the material that occur in only tenth of a nanometer wide. Researchers have discovered a way to cure these Angstrom-Skele Hores to control how the material filters hydrogen ions, so that proton beams can be produced with less disintegration.

Nanogrence and nanoporus

The new technique begins with a thin film of copper over a sapphire wafer inside a chamber filled with high density plasma. Depending on the temperature of the copper and the rate at which it is deposited, a few dozen nanometer in irregular crystal size is called nanogrence form. Nanogration provides the correct position for growth of UC-Macks, and eventually, an entire layer of atomic-rose carbon materials is crystallized at the top of the copper. This increase occurs in just three seconds, more than a sequence of rapid magnitude compared to previous methods used to grow carbon foil.

Hohui LinA research scientist of a*star working on the project suggests that the rapid pace of synthesis comes from the high density of nanogrin formed on copper, and in the development chamber from plasma, which provides high amounts of particles that react to create a carbon structure with substrates.

Despite its possible importance in the treatment of cancer, Lynn says UC-Mack was originally designed keeping in mind various applications. “We tried it in electronics and optical devices, and after three years of work, we discovered its unique advantage as a membrane for the production of the exact proton beam,” they explain.

Due to the ingstrom-shaped pores in the material, the team found that UC-Mack was typically suited to convert molecular hydrogen ions into protons. Rapiding molecular hydrogen ions through cyclotron rather than already filtered protons increased the amount of protons in the beam, which is a time of time, by an order of magnitude.

Lynn feels that it will still take time to take the material to the point of commercialization. He explains that like many other 2D materials to develop carbon on the substrate, “You need tens of steps”. Therefore, simplifying the process is important to get closer to commercialization. Ultimately, the material can make proton therapy a more widely available treatment option. “UC-Mack Proton makes the beam more tuneable (and) inexpensive,” Lynn says.