Microalgae: A prospective low cost green alternative for nanoparticle synthesis

Jacob, Jaya Mary; Ravindran, Rajeev; Narayanan, Manoj; Samuel, S. Melvin; Pugazhendhi, Arivalagan; Kumar, Gopalakrishnan

doi:10.1016/j.coesh.2019.12.005

Cited by 75 publications

(50 citation statements)

References 25 publications

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“…Tetraselmis kochinensis has been shown to produce intracellular gold nanoparticles [79]. Besides seaweed, AuNPs and Au-silica bionanocomposites can be synthesised in microalgae like diatoms (N. atomus and D. gallica) [80]. Algae is just as essential in nanoparticle synthesis in comparison to other micro-organisms, such as bacteria and the fungus, and thus an ecofriendly approach has recently been studied for nanoparticles' algae-mediated biosynthesis.…”

Section: Algaementioning

confidence: 99%

Biogenic Nanoparticles: Synthesis, Characterisation and Applications

et al. 2021

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Nanotechnology plays a big part in our modern daily lives, ranging from the biomedical sector to the energy sector. There are different physicochemical and biological methods to synthesise nanoparticles towards multiple applications. Biogenic production of nanoparticles through the utilisation of microorganisms provides great advantages over other techniques and is increasingly being explored. This review examines the process of the biogenic synthesis of nanoparticles mediated by microorganisms such as bacteria, fungi and algae, and their applications. Microorganisms offer a disparate environment for nanoparticle synthesis. Optimum production and minimum time to obtain the desired size and shape, to improve the stability of nanoparticles and to optimise specific microorganisms for specific applications are the challenges to address, however. Numerous applications of biogenic nanoparticles in medicine, environment, drug delivery and biochemical sensors are discussed.

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Section: Algaementioning

confidence: 99%

Biogenic Nanoparticles: Synthesis, Characterisation and Applications

et al. 2021

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“…However, it could be used as biofertilizers, biostimulants, or biopesticides to improve crop productions and reduce the impacts of the agricultural industry (as long as healthy conditions are assured) or as a renewable source of bioplastics (Acién et al, 2021;Bhattacharya & Goswami, 2020;Tua et al, 2021). Microalgae have also gained recent attention as potential producers of green metal nanoparticles due to their capacity to accumulate heavy metals during cultivation in wastewater (Goswami et al, 2020;Jacob et al, 2020).…”

Section: Products From Microalgae Biomassmentioning

confidence: 99%

Outdoor microalgae‐based urban wastewater treatment: Recent advances, applications, and future perspectives

et al. 2021

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Although microalgae‐based wastewater treatment has been traditionally carried out in extensive waste stabilization ponds, recent trends focus on the use of microalgae to apply the circular economy principles in the wastewater treatment sector due to the capacity of algae to absorb carbon dioxide while recovering nutrients from sewage. To this aim, the development of new intensive microalgae‐based systems with higher efficiency and level of process control is required. Results obtained for these systems at lab scale are generally promising. However, upscaling to outdoor conditions is often uncertain. Some advances have been made in terms of applying open systems at large scale. However, there are still some issues related to land requirements and the economic feasibility and robustness of the process that have to be overcome to widely implement these systems. This article aims at describing the main design and operating factors regarding outdoor microalgae cultivation. It will also explain some microalgae cultivation technologies to treat wastewater, showing their advantages, disadvantages, and the possibility to treat different wastewater streams with microalgae cultures. Future perspectives of this biotechnology will be commented as well. This article is categorized under: Engineering Water > Engineering Water

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“…It is known that various species of microalgae reduce metal ions. Algae are recognized as primitive microscopic plants and have few advantages, such as growth rate and nutrient requirements, for producing nanoparticles compared to higher plants ( Jacob et al, 2021 ). The present review makes an attempt to improve researchers’ knowledge of green synthesis methodology of nanoparticle synthesis using different algal species and their various pros and cons.…”

Section: Introductionmentioning

confidence: 99%

A Review of Green Synthesis of Metal Nanoparticles Using Algae

Mukherjee¹,

Sarkar²,

Sasmal³

2021

Front. Microbiol.

132

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The ability of algae to accumulate metals and reduce metal ions make them a superior contender for the biosynthesis of nanoparticles and hence they are called bio-nano factories as both the live and dead dried biomass are used for the synthesis of metallic nanoparticles. Microalgae, forming a substantial part of the planet’s biodiversity, are usually single-celled colony-forming or filamentous photosynthetic microorganisms, including several legal divisions like Chlorophyta, Charophyta, and Bacillariophyta. Whole cells of Plectonema boryanum (filamentous cyanobacteria) proved efficient in promoting the production of Au, Ag, and Pt nanoparticles. The cyanobacterial strains of Anabaena flos-aquae and Calothrix pulvinate were used to implement the biosynthesis of Au, Ag, and Pt nanoparticles. Once synthesized within the cells, the nanoparticles were released into the culture media where they formed stable colloids easing their recovery. Lyngbya majuscule and Chlorella vulgaris have been reported to be used as a cost-effective method for Ag nanoparticle synthesis. Dried edible algae (Spirulina platensis) was reported to be used for the extracellular synthesis of Au, Ag, and Au/Ag bimetallic nanoparticles. Synthesis of extracellular metal bio-nanoparticles using Sargassum wightii and Kappaphycus alvarezi has also been reported. Bioreduction of Au (III)-Au (0) using the biomass of brown alga, Fucus vesiculosus, and biosynthesis of Au nanoparticles using red algal (Chondrus crispus) and green algal (Spyrogira insignis) biomass have also been reported. Algae are relatively convenient to handle, less toxic, and less harmful to the environment; synthesis can be carried out at ambient temperature and pressure and in simple aqueous media at a normal pH value. Therefore, the study of algae-mediated biosynthesis of metallic nanoparticles can be taken toward a new branch, termed phyco-nanotechnology.

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Microalgae: A prospective low cost green alternative for nanoparticle synthesis

Cited by 75 publications

References 25 publications

Biogenic Nanoparticles: Synthesis, Characterisation and Applications

Biogenic Nanoparticles: Synthesis, Characterisation and Applications

Outdoor microalgae‐based urban wastewater treatment: Recent advances, applications, and future perspectives

A Review of Green Synthesis of Metal Nanoparticles Using Algae

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