Microalgae biosynthesis of silver nanoparticles for application in the control of agricultural pathogens

Terra, Ana Luiza Machado; Kosinski, Roberta da Costa; Moreira, Juliana Botelho; Costa, Jorge Alberto Vieira; Morais, Michele Greque de

doi:10.1080/03601234.2019.1631098

Cited by 35 publications

(14 citation statements)

References 46 publications

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“…Microalgae, single-celled prokaryotic or eukaryotic predominantly aquatic microorganisms that undertake photosynthesis form colonies without any cell differentiation and can grow in a variety of environments, such as freshwater, saline, and sea, where their growth is directly related to temperature, light intensity, and nutrient concentration [ 152 ]. Microalgae have been widely used in a variety of industrial, health and biotechnological applications thanks to a wide range of potential biological applications, such as pigment overexpression, biological treatment, biofuel production and toxicity studies [ 153 ].…”

Section: Application Of Green Synthesized Mtnps In Agriculturementioning

confidence: 99%

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Green synthesis of metal nanoparticles using microorganisms and their application in the agrifood sector

et al. 2021

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The agricultural sector is currently facing many global challenges, such as climate change, and environmental problems such as the release of pesticides and fertilizers, which will be exacerbated in the face of population growth and food shortages. Therefore, the need to change traditional farming methods and replace them with new technologies is essential, and the application of nanotechnology, especially green technology offers considerable promise in alleviating these problems. Nanotechnology has led to changes and advances in many technologies and has the potential to transform various fields of the agricultural sector, including biosensors, pesticides, fertilizers, food packaging and other areas of the agricultural industry. Due to their unique properties, nanomaterials are considered as suitable carriers for stabilizing fertilizers and pesticides, as well as facilitating controlled nutrient transfer and increasing crop protection. The production of nanoparticles by physical and chemical methods requires the use of hazardous materials, advanced equipment, and has a negative impact on the environment. Thus, over the last decade, research activities in the context of nanotechnology have shifted towards environmentally friendly and economically viable ‘green’ synthesis to support the increasing use of nanoparticles in various industries. Green synthesis, as part of bio-inspired protocols, provides reliable and sustainable methods for the biosynthesis of nanoparticles by a wide range of microorganisms rather than current synthetic processes. Therefore, this field is developing rapidly and new methods in this field are constantly being invented to improve the properties of nanoparticles. In this review, we consider the latest advances and innovations in the production of metal nanoparticles using green synthesis by different groups of microorganisms and the application of these nanoparticles in various agricultural sectors to achieve food security, improve crop production and reduce the use of pesticides. In addition, the mechanism of synthesis of metal nanoparticles by different microorganisms and their advantages and disadvantages compared to other common methods are presented.

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Section: Application Of Green Synthesized Mtnps In Agriculturementioning

confidence: 99%

“…Biomass containing Chlorella sp. and Haematococcus Candida albicanspluvialis inhibited the growth of Penicillium expansum , the main cause of loss of quality and quantity of fruit after harvest [ 152 , 171 ].…”

Section: Application Of Green Synthesized Mtnps In Agriculturementioning

confidence: 99%

Green synthesis of metal nanoparticles using microorganisms and their application in the agrifood sector

et al. 2021

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“…Silver nanoparticles, which are well recognized for their antimicrobial function, may be synthesized by microalgae. Furthermore, the biomass generated in micro-algal culture for nanoparticle biosynthesis exhibits antimicrobial properties, as it can increase the antibacterial and antifungal ability of silver nanoparticles ( Terra et al, 2019 ). Usage of silver nanoparticles was seen to extend to C. vulgaris conditioned media with a bright yellow to dark brown color shift (UV-Vis absorbance at 415 nm) ( da Silva Ferreira et al, 2017 ).…”

Section: Classification Of Nanomaterials and Methods Of Synthesismentioning

confidence: 99%

A Review of Green Synthesis of Metal Nanoparticles Using Algae

Mukherjee¹,

Sarkar²,

Sasmal³

2021

Front. Microbiol.

134

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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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“…Furthermore, the production of reactive oxygen species (ROS) disrupts the antioxidant defense mechanism and damages the cell membrane mechanically. The key mechanisms underlying NPs' anti-microbial effects, according to current research, are as follows: 1) the membrane of bacterial cell rupture; 2) production of reactive oxygen species (ROS); 3) the membrane of bacterial cell penetration; and 4) development of intracellular anti-bacterial activities, including interactions with DNA and proteins [12]. The mechanisms of anti-bacterial action of Selenium dioxide NPs are the subject of this study.…”

Section: Introductionmentioning

confidence: 99%

The anti-bacterial activity of Selenium dioxide Nano-particles and prospects for the future

Baqi

Nasser

Sulaiman

et al. 2022

J. Phys.: Conf. Ser.

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As an alternative to antibiotics, nanoparticles are increasingly being employed to target bacteria. Nanotechnology has the potential to revolutionize the treatment of bacterial infections. Biosynthesis is becoming increasingly popular as a cutting-edge method for producing functionally diverse Nanoparticles with enormous therapeutic potential. Various biological resources have already proven their ability to manufacture Nano-particles with unique properties. They have a diverse and distinct pool of possibly therapeutic secondary metabolites that can reduce metallic ions to Nano-particles. Selenium dioxide Nano-particles were made from Cinnamomum cassia extract (NPs). The created Selenium dioxides were examined using a variety of techniques, including XRD, UV-Vis, and TEM. Two bacteria were used to investigate the anti-bacterial effect.

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Microalgae biosynthesis of silver nanoparticles for application in the control of agricultural pathogens

Cited by 35 publications

References 46 publications

Green synthesis of metal nanoparticles using microorganisms and their application in the agrifood sector

Green synthesis of metal nanoparticles using microorganisms and their application in the agrifood sector

A Review of Green Synthesis of Metal Nanoparticles Using Algae

The anti-bacterial activity of Selenium dioxide Nano-particles and prospects for the future

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