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Nanoparticles exhibit unique and diverse chemical and physical properties due to their tiny size (1 to 100 nm), and show great application potential, so they have received extensive research and more and more attention. Their production has been further expanded in "Materials Today" magazine.
Research: Use mugwort plant extracts to green synthesize copper nanoparticles. Photo Credit: Kaprisova/Shutterstock.com
The manufacture of nanoparticles can be done by breaking down larger particles or by a controlled assembly process. However, one of the disadvantages of nanoparticle production is that it is both expensive and has an adverse effect on the environment due to expensive chemicals.
Now, a team of researchers at the University of Babylon in Iraq has developed an environmentally friendly, low-cost plant-based copper nanoparticle production method. Considering that copper nanoparticles are widely used in research and real-world scenarios, this is an exciting development.
Copper nanoparticles show unique properties. When added to other materials, they can act as antibiotics, antimicrobial agents, and antifungal agents, and help strengthen metal alloys.
They can also be used as heat sinks in electronic technology-based scenarios and as an effective catalyst: due to their huge catalytic potential, copper nanometers can be incorporated into biosensors and electrochemical sensors.
Therefore, the development of an environmentally friendly, low-cost production method not only has a positive impact on the environment, but may also have a significant impact on various fields such as biomedicine, electronics, and catalytic chemical processing.
Although the term "plant-based" often appears in current dictionaries related to food and diet, plant-based copper nanoparticles add a different meaning to the term.
The use of plants has many advantages, such as no need for cultivation preparation and isolation maintenance, relatively cheap, environmentally friendly, stable, safe, non-toxic, and reduce production time. In addition, when producing nanoparticles on a large scale, plant-based materials are relatively easy to scale up.
A team led by Mahmood Ali Abed Al-Khafaji, a professor in the Department of Chemistry at the Faculty of Science of the University of Babylon, collected a batch of fresh wormwood leaves from the local market.
Mugwort is an aromatic herb, including wormwood, sagebrush and tarragon. They are usually harvested for use in medicines as herbal medicines and in the production of certain alcoholic beverages, such as absinthe and absinthe.
Once they have obtained the leaves, they will wash them and then dry them under a parasol to remove all moisture. Once the leaves are completely dry, they use a mechanical grinder to crush the leaves and then boil the powder in distilled water.
To synthesize copper nanoparticles, the team then added plant extracts and used filters to purify the mixture. The filtered mixture is then dried to produce a brown powdery substance from which nano-copper is extracted.
The team conducted an antibacterial study as part of the study, which confirmed that copper nanoparticles exhibit antibacterial properties: "In the production process of copper nanoparticles, polyphenols play an important role as a reducing agent and capping agent. Cu NPs The extensive inhibition zone of pathogens indicates that they are highly active against infectious diseases caused by the microorganisms examined," Al-Khafaji explained.
Photo Credit: saran insawat/Shutterstock.com
In addition, the team also used a variety of tools including scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) to evaluate and validate production methods. They found that, as a side process, some copper atoms on the surface of the nanoparticles oxidized with air to form copper oxide.
In general, copper nano has shown excellent antibacterial properties against two specific types of bacteria (E. coli and Bacillus subtilis) and showed a good level of efficacy. "The presence of biologically active chemicals on the surface of Cu NPs as capping agents and stabilizers may be the main reason for the antibacterial activity of nano-copper," Al-Khafaji said.
Therefore, the research team was able to produce plant-based copper nanoparticles, proving the success of its environmentally friendly, low-cost, and relatively simple method. The results show that when combined with plant extracts, nano-copper may have beneficial applications in the medical field of treating infectious diseases.
This approach demonstrates the benefits of plant-based alternative materials in materials science. It can also pave the way for other green nanoparticle production methods and open the door for plant nanomaterials to become part of future technologies and industries.
Mahmood Ali Abed Al-Khafaji, Rana AK Al-Refai'a and Oda Mizil Yasser Al-Zamely. 'Use mugwort plant extracts to green synthesize copper nanoparticles.' Today's material: procedures. November 2021. https://www.sciencedirect.com/science/article/pii/S2214785321065573?via=ihub
"Copper (Cu) Nanoparticles-Characteristics and Applications" https://www.azonano.com/article.aspx?ArticleID=3271
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David is an academic researcher and interdisciplinary artist. David's current research explores how science and technology, especially the Internet and artificial intelligence, can be put into practice to influence a new shift towards utopianism and the reemergence of commons theory.
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