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Categoría: Física Experimental de Alta Energía

CCTVal researchers create the first gaseous phase nanoparticles manufactured in Chile.

A research group of the Scientific and Technological Center of Valparaíso (CCTVal) of the UTFSM managed to produce clusters or nanoparticles that will allow to generate collaborations with multiple scientific disciplines.

A research group of the Scientific and Technological Center of Valparaíso (CCTVal) of the UTFSM managed to produce clusters or nanoparticles that will allow to generate collaborations with multiple scientific disciplines.

A research group of the Scientific and Technological Center of Valparaíso of the Technical University Federico Santa María, managed to produce the first nanoparticles (clusters) created by through a physical method; technology that will allow to study the quantum properties of these clusters and facilitate the processes of scientific research of different disciplines.

This synthesis of nanoparticles is possible thanks to a unique device in Chile and South America, capable of generating nanoparticles by gaseous phase, using a quick and clean method. Specially designed according to the requirements of the researchers, the high-tech equipment allows selecting the size of nanoparticles depending on the needs that each investigation requires.

"With this method, a range of nanoparticles can be produced, which can be selected by their size quickly, searching if the effect being sought improves or worsens depending on the particle size that was used. It is an enabling technology to break down the quantum properties of nanoparticles in different processes ", says the Researcher of the Department of Physics and director of this research, Dr. Christian Romero.

"It is not the only way to produce nanoparticles, but it is the fastest way to make them, because this machine, during the process, generates a kind of cluster spray applicable to a material and with this a well-defined quantity of nanoparticles is achieved, this allows to control the dose that you deposit on the surface. So you can find the optimal amount depending on what the investigation requires”, details the researcher.

Technology, according to its researchers, will facilitate various processes and research techniques such as - for example - chemical processes, photo catalysis, magnetism, optics, toxicity, corrosion, among others. "It is a method that does not depend on the material. It is faster than a chemical process for example, because it can take several months to come up with a good formulation, but the latter method allows changing material and size very quickly, "Romero adds.

Projection

Mario Mery, a student of the PhD in Physical Sciences of the University and researcher of this group, explains that nanoparticles or clusters are a cluster of atoms that have a size that varies between one and 10 nanometers, and have physical properties different from an isolated one, or a macroscopic material.

"For this reason, the physical characteristics such as electrical conductivity, magnetic and optical properties of a nanoparticle are very special. Each of them deserves a study to concentrate on process of characterization and to know understand their physical-chemical properties, "says Mery.

He adds that "this is framed in the area of nano-science, of nanotechnology and it is related since, when you have particles of this order of size, the quantum and classical properties are mixed and that is why they have a different behavior.”

The researchers, after the production of these clusters, are investigating the application of nanoparticles in materials such as hydrogen and in collaborations with toxicology projects with the help of Professor Cristian Acevedo, of the Biotechnology Center "Dr. Daniel Alkalay Lowitt "(CB-DAL), in the manufacture of artificial leather fabrics.

In this latest collaboration, Dr. Romero says that "we will be able to take artificial tissues that are used by people who have suffered some type of burns or who have important wounds, and we will add nanoparticles, to study how the tissue graft reacts on human skin. . This type of research can be done in great detail thanks to the capabilities of this team, "he says.

In relation to the research that can be done through this unique method in Chile, the researchers indicate that the high technology equipment will allow to attract research from diverse areas and also scientific collaborations with universities and research centers that require this process for applications both, short and long term.

Escrito por Super User 06 · Jun · 2018

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