BARC Researchers Invent Bacteria Killing Nano-Silver Coating

BARC Researchers Invent Bacteria Killing Nano-Silver Coating

BARC - A group of scientists of Bhabha Atomic Research Center, Mumbai, invented a new method for the manufacture of antibacterial powder coated silver nanoparticles.

 While preparing this method, it is considered to be simple and environmentally friendly - no toxic chemicals are used, thus reducing the problem of unwanted release of silver nanoparticles in the environment by binding into root materials.

The findings of this research have been published in the Applied Nanoscience Journal.

 For this study, the BARC research team included DevaSish Govt., Amit Kaushal, Selin Acharya, Devanshi Khare, Jitendra Bahadur, Jyoti Prakash, Harish Donatorula and Kinshi Dasgupta.

Using the technique of spray drying, the team of BARC researchers synthesized these nanoparticles connected to ceramic nanoparticles. 

During the process, an eco-friendly biopolymer extracted from Gum Arabi-Acacia tree was used, which is helpful in chemical reduction and binding process of chemical nanoparticles and silica substrates.

Using advanced modern techniques, analyzed using the characteristics of composite materials - X-ray diffraction, high-resolution temperature, field emission SEM, and foot-infrared spectroscopy.

E.coli (Gram-V) and Stefilococcus aureus (G + V) were used to test mixed particles for its antimicrobial properties. It used to kill bacteria on the administration of the very low dose. The composite was also found to be as effective as a catalyst.

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Silver nanoparticles are often used as an agent to clean water in waste management plants.

 But due to its small size later it becomes difficult to separate. According to researchers, silver nanoparticles - 5 nm in size, were strongly linked to the silica substrate. 

These large-sized silver particles can be easily removed by filtering, once the process is completed.

Scientists claim that the silica nanoparticles used in the form of a substrate can be replaced by magnetic properties, thus the particles can be extracted easily using the external magnet.

Some of the paint manufacturers claim products with antimicrobial property, but according to scientists - silver nanoparticles are in paint before applications directly.

 This process is not environment-friendly, because almost half of the silver nanoparticles used are released in the environment in a year.

This article has been adapted from the original post in India Science Wire.