Algae-based metallic nanoparticles: Synthesis, characterization and applications

Khanna, Purnima; Kaur, Amrit; Goyal, Dinesh

doi:10.1016/j.mimet.2019.105656

Cited by 340 publications

(151 citation statements)

References 152 publications

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“…Algae have recently been reported in the biosynthesis of Pd NPs [ 33 ]. They are rich in broad-spectrum bioactive compounds and natural reducing agents, making them very promising in the biogenic synthesis of Pd NPs.…”

Section: Green Synthesis Of Pd Npsmentioning

confidence: 99%

Palladium Nanoparticles Fabricated by Green Chemistry: Promising Chemotherapeutic, Antioxidant and Antimicrobial Agents

et al. 2020

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Palladium nanoparticles (Pd NPs) showed great potential in biomedical applications because of their unique physicochemical properties. Various conventional physical and chemical methods have been used for the synthesis of Pd NPs. However, these methods include the use of hazardous reagents and reaction conditions, which may be toxic to health and to the environment. Thus, eco-friendly, rapid, and economic approaches for the synthesis of Pd NPs have been developed. Bacteria, fungi, yeast, seaweeds, plants, and plant extracts were used to prepare Pd NPs. This review highlights the most recent studies for the biosynthesis of Pd NPs, factors controlling their synthesis, and their potential biomedical applications.

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Section: Green Synthesis Of Pd Npsmentioning

confidence: 99%

Palladium Nanoparticles Fabricated by Green Chemistry: Promising Chemotherapeutic, Antioxidant and Antimicrobial Agents

et al. 2020

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“…Consequently, these are efficient in reducing metal salts into NPs and large-scale synthesis is cost-effective. [29,30] Fungi Filamentous fungi are more efficient MNPs producers due to high tolerance to metals, easier handling, and capability to survive extreme conditions when in bioreactors. Most species are extremely efficient secretors of extracellular enzymes capable of reducing Ag + , facilitating scaled-up processes, downstream processing (biomass production and extraction).…”

Section: Secondary Metabolites From Organismsmentioning

confidence: 99%

“…Biogenic processes can be affected by pH, temperature, time of reaction, the concentration of precursor, culture media, the quantity of biomass, agitation, the quantity of microbial biomass, and light intensity. All these parameters can influence the final MNPs formed (shape, size, concentration) and their rate of formation; they can be optimized for specific results with variation from species to species [5,6,13,30]. Filamentous fungi are the best-studied organisms for this biosynthesis, and conditions for mycogenic synthesis of MNPs vary as well as the resulting NPs, but according to Zhao et al [11], for AgNPs, the best conditions are pH 7, at 25 • C with 1 mM silver nitrate (AgNO 3 ), and 15-20 g of wet fungal-cell filtrate.…”

Section: Virusesmentioning

confidence: 99%

Biogenic Metal Nanoparticles: A New Approach to Detect Life on Mars?

Simões

Ottoni

Antunes

2020

Life

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Metal nanoparticles (MNPs) have been extensively studied. They can be produced via different methods (physical, chemical, or biogenic), but biogenic synthesis has become more relevant, mainly for being referred by many as eco-friendly and more advantageous than others. Biogenic MNPs have been largely used in a wide variety of applications, from industry, to agriculture, to health sectors, among others. Even though they are increasingly researched and used, there is still space for exploring further applications and increasing their functionality and our understanding of their synthesis process. Here, we provide an overview of MNPs and biogenic MNPs, and we analyze the potential application of their formation process to astrobiology and the detection of life on Mars and other worlds. According to current knowledge, we suggest that they can be used as potential biosignatures in extra-terrestrial samples. We present the advantages and disadvantages of this approach, suggest further research, and propose its potential use for the search for life in future space exploration.

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“…Microbial nanotechnology is a bio-driven scientific discipline that interconnects microbial biotechnology and nanotechnology. Numerous biological resources have been exploited for the biosynthesis of nanoparticles, including bacteria [ 66 ], fungi [ 67 ], algae [ 68 ], viruses [ 69 ], plant extracts [ 70 ], and agro-industrial wastes [ 71 ]. Fungi, yeast, and bacteria are currently receiving particular attention for the biological production of nanoparticles owing to their capacity to biotransform and bioaccumulate metals ( Table 1 ).…”

Section: Microbial Synthesis Of Qdsmentioning

confidence: 99%

Superior Properties and Biomedical Applications of Microorganism-Derived Fluorescent Quantum Dots

et al. 2020

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Quantum dots (QDs) are fluorescent nanocrystals with superb photo-physical properties. Applications of QDs have been exponentially increased during the past decade. They can be employed in several disciplines, including biological, optical, biomedical, engineering, and energy applications. This review highlights the structural composition and distinctive features of QDs, such as resistance to photo-bleaching, wide range of excitations, and size-dependent light emission features. Physical and chemical preparation of QDs have prominent downsides, including high costs, regeneration of hazardous byproducts, and use of external noxious chemicals for capping and stabilization purposes. To eliminate the demerits of these methods, an emphasis on the latest progress of microbial synthesis of QDs by bacteria, yeast, and fungi is introduced. Some of the biomedical applications of QDs are overviewed as well, such as tumor and microRNA detection, drug delivery, photodynamic therapy, and microbial labeling. Challenges facing the microbial fabrication of QDs are discussed with the future prospects to fully maximize the yield of QDs by elucidating the key enzymes intermediating the nucleation and growth of QDs. Exploration of the distribution and mode of action of QDs is required to promote their biomedical applications.

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Algae-based metallic nanoparticles: Synthesis, characterization and applications

Cited by 340 publications

References 152 publications

Palladium Nanoparticles Fabricated by Green Chemistry: Promising Chemotherapeutic, Antioxidant and Antimicrobial Agents

Palladium Nanoparticles Fabricated by Green Chemistry: Promising Chemotherapeutic, Antioxidant and Antimicrobial Agents

Biogenic Metal Nanoparticles: A New Approach to Detect Life on Mars?

Superior Properties and Biomedical Applications of Microorganism-Derived Fluorescent Quantum Dots

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