Biological synthesis of nanoparticles in biofilms
| Autor: | Liang Shi, Steven R. Saunders, Haluk Beyenal, Enrico Marsili, Abid H. Tanzil, Sujala T. Sultana |
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| Rok vydání: | 2016 |
| Předmět: |
Nanoparticle
Bioengineering Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences Applied Microbiology and Biotechnology Biochemistry Electron Transport Microscopy Electron Transmission Downstream processing Bacteria biology Chemistry Planktonic bacteria Spectrum Analysis Biofilm Green Chemistry Technology 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences Biofilms Drug delivery Nanoparticles 0210 nano-technology Oxidation-Reduction Powder Diffraction Biotechnology |
| Zdroj: | Enzyme and Microbial Technology. 95:4-12 |
| ISSN: | 0141-0229 |
| DOI: | 10.1016/j.enzmictec.2016.07.015 |
| Popis: | The biological synthesis of nanoparticles (NPs) by bacteria and biofilms via extracellular redox reactions has received attention because of the minimization of harmful chemicals, low cost, and ease of culturing and downstream processing. Bioreduction mechanisms vary across bacteria and growth conditions, which leads to various sizes and shapes of biosynthesized NPs. NP synthesis in biofilms offers additional advantages, such as higher biomass concentrations and larger surface areas, which can lead to more efficient and scalable biosynthesis. Although biofilms have been used to produce NPs, the mechanistic details of NP formation are not well understood. In this review, we identify three critical areas of research and development needed to advance our understanding of NP production by biofilms: 1) synthesis, 2) mechanism and 3) stabilization. Advancement in these areas could result in the biosynthesis of NPs that are suitable for practical applications, especially in drug delivery and biocatalysis. Specifically, the current status of methods and mechanisms of nanoparticle synthesis and surface stabilization using planktonic bacteria and biofilms is discussed. We conclude that the use of biofilms to synthesize and stabilize NPs is underappreciated and could provide a new direction in biofilm-based NP production. |
| Databáze: | OpenAIRE |
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