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Metal based nanoparticles; size, function and areas for advancement in applied microbiology
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Dr Michael Sweet
Dr Ian Singleton
Sweet MJ, Chesher A, Singleton I
Advances in Applied Microbiology
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Nanoparticles (NP) are attracting increased attention in commerce and applied microbiology due to their anti-microbial activity, high electrical conductivity, and optical properties. For example, silver NPs have broad spectrum antimicrobial properties against a wide range of bacteria and fungi, making them ideal for minimizing biofouling. By controlling the size, shape, surface and agglomeration state of the NPs, specific ion release profiles can be developed for any given application. Currently NPs are formed in a wide variety of different shapes and sizes and can be added to many different surfaces including; spheres, plates and wires. This review will look at both commercially and naturally produced NP with a focus on silver NPs and address how these are formed. Furthermore potential areas for improving these techniques will be highlighted, focusing on advancing shape and structure formation using modern applications. Finally the review evaluates the feasibility of bioengineering microorganisms to synthesise particles of defined shape and size, by examining key genes associated with NP production.
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