Biosynthesis and antibacterial activity of manganese oxide nanoparticles prepared by green tea extract

Saod, Wahran M.; Hamid, Layth L.; Alaallah, Nisreen Jassam; Ramizy, Asmiet

doi:10.1016/j.btre.2022.e00729

Cited by 48 publications

(18 citation statements)

References 28 publications

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“…While E. coli showed resistance at pH 6 against Mn 3 O 4 [56]. In another study, MnO NPs exhibited activity with a zone of inhibition against E. coli (12 mm), K. pneumonia (14 mm), and P. aeruginosa (18 mm) [57]. Further MIC value of 50 µg/mL was observed for Mn 3 O 4 ‐MnO 2 against all tested pathogens.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Alvares

Gaonkar

Naik³

et al. 2023

J Basic Microbiol

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Manganese oxide nanocomposites attract huge attention in various biotechnological fields due to their extensive catalytic properties. This study reports an easy, rapid, and cost‐effective method of using the cell lysate of haloarchaeon, Haloferax alexandrinus GUSF‐1 for the synthesis of manganese oxide nanoparticles. The reaction between the cell lysate and manganese sulfate resulted in the formation of a dark brown precipitate within 48 h at room temperature. The X‐ray diffraction pattern showed the existence of Mn3O4 and MnO2 phases consistent with the JCPDS card no. (01‐075‐1560 and 00‐050‐0866). The dark brown colloidal suspension of MnO3‐MnO2 in methanol showed maximum absorption between 220 and 260 nm. The EDX spectrum confirmed the presence of manganese and oxygen. The Transmission electron microscopy revealed the spherical morphology with an average particle size between 30 and 60 nm. The magnetic moment versus magnetic field (MH) curve, at room temperature (300 K) did not saturate even at a high magnetic field (±3T) indicating the paramagnetic nature of the prepared nanocomposite. The Atomic Emission Spectroscopic analysis showed a negligible amount of soluble manganese (0.03 ppm in 50 ppm) in the Mn3O4‐MnO2 suspension suggesting the maximum stability of the material in the solvent over time. Interstingly, Mn3O4‐MnO2 nanocomposites evidenced antimicrobial activity in the order of Pseudomonas aeruginosa > Salmonella typhi > Escherichia coli > Proteus vulgaris > Candida albicans > Staphylococcus aureus. Conclusively, this is the first report on the formation of Mn3O4‐MnO2 nanocomposites using cell lysate of salt pan haloarcheon Haloferax alexandrinus GUSF‐1 with antimicrobial potential.

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Section: Discussionmentioning

confidence: 99%

Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Alvares

Gaonkar

Naik³

et al. 2023

J Basic Microbiol

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“…Besides the conventional chemical and physical methods, the most recent approach for developing MO NSs is biosynthesis, where MnO 2 NPs (average particle size B4.62 nm) were synthesized by adding manganese salt into the culture medium of bacterial strain Bacillus species. 26,27 Mn-Based NSs can be produced with a variety of structures, morphologies, textures, porosity, and defects. A large number of Mn-based NSs of different shapes such as nanoparticles, 28,29 nanorods/nanowalls, 30,31 nanosheets, 32 nanospheres, [33][34][35] nanowires, 24,30 nanoballs, 25 nanoflowers, 15,30 thin films, 36 mesoporous/hollow structures, 33,37 sea urchin or coral-like structures, 38,39 nanobundles, 13 nanoplates, 35 porous hierarchical and hollow microstructures 40,41 have been synthesized by different methods.…”

Section: Synthesis Of Mn-based Nanostructuresmentioning

confidence: 99%

“…Besides the conventional chemical and physical methods, the most recent approach for developing MO NSs is biosynthesis, where MnO 2 NPs (average particle size ∼4.62 nm) were synthesized by adding manganese salt into the culture medium of bacterial strain Bacillus species. 26,27…”

Section: Synthesis Of Mn-based Nanostructuresmentioning

confidence: 99%

Design of manganese-based nanomaterials for pharmaceutical and biomedical applications

Jain,

Jangid,

Pooja

et al. 2024

J. Mater. Chem. B

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“…In another work, MnO 2 NPs have shown excellent penetrating abilities into the biofilms ( E. coli, K. pneumoniae, and P. aeruginosa ) and punctate the bacterial cell walls causing cytotoxicity. This hints at the possibility of using metal oxide NPs for targeted delivery to microorganisms to maximize the topical concentration and bactericidal impact of the antimicrobial agent [72]. In another study, antibiofilm potential of green synthesized MnO 2 NPs from Aegle marmelos fruit was explored with both Gram‐positive and Gram‐negative bacterial species.…”

Section: Antibiofilm Activity Of Various Metal and Metal Oxide Nanopa...mentioning

confidence: 99%

Effectiveness of metal and metal oxide nanoparticles against bacterial biofilms: Perspectives and limitations

et al. 2023

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In the last few years, there has been a necessary demand in the pharmaceutical industries for finding a treatment against biofilms formed by different bacterial species. We are aware of the fact that classical processes, which are already there for the removal of bacterial biofilms gives a very low efficiency and consequently antimicrobial resistance makes it even worse. To cope up with the cited problems, scientists from the past few years are inclining toward various types of nanoparticle based treatment procedures as a pharmaceutical agent against bacterial biofilms. Nanoparticles are known for their extremely efficient antimicrobial properties. The current review gives a description of different types of metal oxide nanoparticles and their antibiofilm properties. It also shows a comparative analysis of the nanoparticles and depicts the efficiency rates of biofilm degradation in each of them. It explains the mechanism of the nanoparticles through which the disintegration of bacterial biofilm is carried out. Lastly, the review throws light upon the limitations of different nanoparticles, their safety issues, the mutagenicity, genotoxicity concerns, and toxicity hazards caused by them.

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Biosynthesis and antibacterial activity of manganese oxide nanoparticles prepared by green tea extract

Cited by 48 publications

References 28 publications

Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Design of manganese-based nanomaterials for pharmaceutical and biomedical applications

Effectiveness of metal and metal oxide nanoparticles against bacterial biofilms: Perspectives and limitations

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Biosynthesis and antibacterial activity of manganese oxide nanoparticles prepared by green tea extract

Cited by 48 publications

References 28 publications

Characterization of Mn3O4‐MnO2 nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Characterization of Mn3O4‐MnO2 nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Design of manganese-based nanomaterials for pharmaceutical and biomedical applications

Effectiveness of metal and metal oxide nanoparticles against bacterial biofilms: Perspectives and limitations

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Product

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Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1