Building nanomaterials with microbial factories: A sustainable approach

ANTEZANA PABLO EDMUNDO; MUNICOY , SOFIA; DESIMONE , MARTIN

Biogenic Sustainable Nanotechnology Trends and Progress

Elsevier

Lugar: Ámsterdam; Año: 2021;

Microorganisms possess the ability to fabricate nanomaterials of different shapes, sizes,and chemical compositions. The sophisticated synthesis machinery present inmicroorganisms allows them to employ a great variety of building blocks to construct newbiosynthesized nanostructures, which could be accumulated in vesicles inside the cellsor transported outside. In this way, possible toxicological effects are avoided. Thisinherently complex synthesis of nanomaterials has been a source of bioinspiration andbiomimetics for years. Specially, bacteria are preferred for nanoparticles (NPs) productiondue to their fast proliferation rate, their easy cultivation, low energy requirements andminimum costs. This chapter describes the biosynthesis and most important features ofmetal NPs (gold, silver, magnetite, copper, selenium and quantum dots) obtained bybacterial machineries. Proposed intracellular and extracellular mechanisms for biogenicsynthesis of NPs by bacteria are also reviewed Furthermore, summarizes the currentapplications of the biogenic nanosized materials and discusses the challenges and futureperspectives of the microbial synthesis approaches.