Biological activity of selected lichens and lichen-based Ag nanoparticles prepared by a green solid-state mechanochemical approach

Goga, Michal; Baláž, Matěj; Daneu, Nina; Elečko, Ján; Tkáčiková, Ľudmila; Marcinčinová, Margaréta; Bačkor, Martin

doi:10.1016/j.msec.2020.111640

Cited by 31 publications

(22 citation statements)

References 39 publications

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“…It has been successfully applied for nanoparticles production (including Ag) in the past [ 17 ]. However, there are just few reports on the application of mechanical force to prepare Ag nanoparticles using natural materials [ 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. There has been no publication directly comparing the bio-mechanochemical and green synthesis so far.…”

Section: Introductionmentioning

confidence: 99%

Mechanochemistry as an Alternative Method of Green Synthesis of Silver Nanoparticles with Antibacterial Activity: A Comparative Study

et al. 2021

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This study shows mechanochemical synthesis as an alternative method to the traditional green synthesis of silver nanoparticles in a comparative manner by comparing the products obtained using both methodologies and different characterization methods. As a silver precursor, the most commonly used silver nitrate was applied and the easily accessible lavender (Lavandula angustofolia L.) plant was used as a reducing agent. Both syntheses were performed using 7 different lavender:AgNO3 mass ratios. The synthesis time was limited to 8 and 15 min in the case of green and mechanochemical synthesis, respectively, although a significant amount of unreacted silver nitrate was detected in both crude reaction mixtures at low lavender:AgNO3 ratios. This finding is of particular interest mainly for green synthesis, as the potential presence of silver nitrate in the produced nanosuspension is often overlooked. Unreacted AgNO3 has been removed from the mechanochemically synthesized samples by washing. The nanocrystalline character of the products has been confirmed by both X-ray diffraction (Rietveld refinement) and transmission electron microscopy. The latter has shown bimodal size distribution with larger particles in tens of nanometers and the smaller ones below 10 nm in size. In the case of green synthesis, the used lavender:AgNO3 ratio was found to have a decisive role on the crystallite size. Silver chloride has been detected as a side-product, mainly at high lavender:AgNO3 ratios. Both products have shown a strong antibacterial activity, being higher in the case of green synthesis, but this can be ascribed to the presence of unreacted AgNO3. Thus, one-step mechanochemical synthesis (without the need to prepare extract and performing the synthesis as separate steps) can be applied as a sustainable alternative to the traditional green synthesis of Ag nanoparticles using plants.

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Section: Introductionmentioning

confidence: 99%

Mechanochemistry as an Alternative Method of Green Synthesis of Silver Nanoparticles with Antibacterial Activity: A Comparative Study

et al. 2021

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“…The nanoparticles exhibited effective antimicrobial properties against Staphylococcus aureus and Pseudomonas aeruginosa. Goga et al (2020) used Pseudevernia furfuracea and Lobaria pulmonaria to synthesize silver nanoparticles with an average size of 10 nm (while a few reached 100 nm) by using solid-state mechanochemical synthesis.…”

Section: Lichen-derived Nanoparticles: Methodologies and Approachesmentioning

confidence: 99%

“…and Sticta sp. (Debnath et al, 2016); Parmelia perlata (Leela and Anchana Devi, 2017); Usnea longissima (Siddiqi et al, 2018); Parmotrema tinctorum (Khandel et al, 2018); Parmelia sulcata (Gandhi et al, 2019); Protoparmeliopsis muralis (Alavi et al, 2019); Ramalina sinensis (Safarkar et al, 2020); Cladonia rangiferina (Devasena et al, 2014;Rai and Gupta, 2019); Pseudevernia furfuracea and Lobaria pulmonaria (Goga et al, 2020); Xanthoria elegans, Usnea antarctica, and Leptogium puberulum (Baláž et al, 2020); and Lecanora muralis (Abdullah et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

A Mini-Review on Lichen-Based Nanoparticles and Their Applications as Antimicrobial Agents

Rattan

Shukla²,

Sharma

et al. 2021

Front. Microbiol.

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Biological entities such as green plants, fungi, and lichens are now a days persistently explored for the synthesis of nanoparticles. Lichen-based nanoparticles are also becoming increasingly popular owing to their biocompatibility, eco-friendliness, and cost-effectiveness. The lichen-based metal nanomaterials, particularly synthesized using green chemistry approaches, have turned out to be great substitutes to conventional antimicrobial therapies. Many scientific reports established the significant antimicrobial properties exhibited by the lichen nanoparticles. Therefore, the present mini-review summarizes an overview of lichen-based nanomaterials, their synthesis, their applications, and the molecular mechanism of their potential as broad spectrum antimicrobial agents for biomedical applications.

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“…The Ag-NPs visualized by TEM were spherical and rod shaped, with a particle size ranging from 5 to 40 nm and an average diameter of 20 nm. Similarly, different studies were reported that lichen species including Xanthoria elegans , Usnea antractica , Leptogium puberulum , Cetraria islandica , Pseudevernia furfuracea , Lobaria pulmonaria , Heterodermia boryi and Parmotrema stuppeum have potentiality to reduce silver nitrate into Ag-NPs with different shapes (bimodal and cubic) and sizes [‎ 155 , 156 , 157 ].…”

Section: Lichens As Biosynthesizers For Nanoparticlesmentioning

confidence: 99%

Lichens—A Potential Source for Nanoparticles Fabrication: A Review on Nanoparticles Biosynthesis and Their Prospective Applications

Hamida

Ali

Abdelmeguid

et al. 2021

JoF

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Green synthesis of nanoparticles (NPs) is a safe, eco-friendly, and relatively inexpensive alternative to conventional routes of NPs production. These methods require natural resources such as cyanobacteria, algae, plants, fungi, lichens, and naturally extracted biomolecules such as pigments, vitamins, polysaccharides, proteins, and enzymes to reduce bulk materials (the target metal salts) into a nanoscale product. Synthesis of nanomaterials (NMs) using lichen extracts is a promising eco-friendly, simple, low-cost biological synthesis process. Lichens are groups of organisms including multiple types of fungi and algae that live in symbiosis. Until now, the fabrication of NPs using lichens has remained largely unexplored, although the role of lichens as natural factories for synthesizing NPs has been reported. Lichens have a potential reducible activity to fabricate different types of NMs, including metal and metal oxide NPs and bimetallic alloys and nanocomposites. These NPs exhibit promising catalytic and antidiabetic, antioxidant, and antimicrobial activities. To the best of our knowledge, this review provides, for the first time, an overview of the main published studies concerning the use of lichen for nanofabrication and the applications of these NMs in different sectors. Moreover, the possible mechanisms of biosynthesis are discussed, together with the various optimization factors influencing the biological synthesis and toxicity of NPs.

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Biological activity of selected lichens and lichen-based Ag nanoparticles prepared by a green solid-state mechanochemical approach

Cited by 31 publications

References 39 publications

Mechanochemistry as an Alternative Method of Green Synthesis of Silver Nanoparticles with Antibacterial Activity: A Comparative Study

Mechanochemistry as an Alternative Method of Green Synthesis of Silver Nanoparticles with Antibacterial Activity: A Comparative Study

A Mini-Review on Lichen-Based Nanoparticles and Their Applications as Antimicrobial Agents

Lichens—A Potential Source for Nanoparticles Fabrication: A Review on Nanoparticles Biosynthesis and Their Prospective Applications

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