Green synthesis and electrochemistry of Ag, Au, and Ag–Au bimetallic nanoparticles using golden rod (Solidago canadensis) leaf extract

Elemike, Elias E.; Onwudiwe, Damian C.; Fayemi, Omolola E.; Botha, Tarryn L.

doi:10.1007/s00339-018-2348-0

Cited by 71 publications

(31 citation statements)

References 37 publications

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“…The addition of a second metal is a major technique for tuning the geometric and electronic structures of NPs to increase their catalytic activity and selectivity. The size, shape, and morphology of alloy or core–shell NPs are comparatively different from those of the individual metals, thereby creating novel opportunities for a range of biomedical applications [ 61 ]. The antimicrobial activity of bimetallic NPs has been assessed against numerous types of pathogenic bacteria, especially E. coli , P. aeruginosa , and S. mutans , which are mainly responsible for human epidemics.…”

Section: Multimetallic Npsmentioning

confidence: 99%

Multimetallic Nanoparticles as Alternative Antimicrobial Agents: Challenges and Perspectives

Basavegowda

Baek

2021

Molecules

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Recently, infectious diseases caused by bacterial pathogens have become a major cause of morbidity and mortality globally due to their resistance to multiple antibiotics. This has triggered initiatives to develop novel, alternative antimicrobial materials, which solve the issue of infection with multidrug-resistant bacteria. Nanotechnology using nanoscale materials, especially multimetallic nanoparticles (NPs), has attracted interest because of the favorable physicochemical properties of these materials, including antibacterial properties and excellent biocompatibility. Multimetallic NPs, particularly those formed by more than two metals, exhibit rich electronic, optical, and magnetic properties. Multimetallic NP properties, including size and shape, zeta potential, and large surface area, facilitate their efficient interaction with bacterial cell membranes, thereby inducing disruption, reactive oxygen species production, protein dysfunction, DNA damage, and killing potentiated by the host’s immune system. In this review, we summarize research progress on the synergistic effect of multimetallic NPs as alternative antimicrobial agents for treating severe bacterial infections. We highlight recent promising innovations of multimetallic NPs that help overcome antimicrobial resistance. These include insights into their properties, mode of action, the development of synthetic methods, and combinatorial therapies using bi- and trimetallic NPs with other existing antimicrobial agents.

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Section: Multimetallic Npsmentioning

confidence: 99%

Multimetallic Nanoparticles as Alternative Antimicrobial Agents: Challenges and Perspectives

Basavegowda

Baek

2021

Molecules

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“…BMNPs, comes in various forms such as an alloy, core-shell and contact aggregate (dumbbell or bamboo-like). This is seen in the surface plasmon resonance peak either as a single (alloy) or multiple (core-shell/contact aggregate) [56,57] (Figures 2 and 3). Among a wide range of BMNPs, silver and gold nanocompositions have gained significant advancement in drug delivery and nanomedicine [58].…”

Section: Ag-au Bimetallic Nanoparticlesmentioning

confidence: 99%

“…Among a wide range of BMNPs, silver and gold nanocompositions have gained significant advancement in drug delivery and nanomedicine [58]. Elemike et al [57] reported synthesis of the Ag-Au alloy using the aqueous extract of Solidago canadensis. They observed the shape of the alloy to be similar to that of AuNPs alone.…”

Section: Ag-au Bimetallic Nanoparticlesmentioning

confidence: 99%

Bactericidal Antibacterial Mechanism of Plant Synthesized Silver, Gold and Bimetallic Nanoparticles

Fanoro

Oluwafemi

2020

Pharmaceutics

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As the field of nanomedicine develops and tackles the recent surge in antibiotic resistance, there is a need to have an in-depth understanding and a synergistic view of research on the effectiveness of a metal nanoparticle (NP) as an antibacterial agent especially their mechanisms of action. The constant development of bacterial resistance has led scientists to develop novel antibiotic agents. Silver, gold and its bimetallic combination are one of the most promising metal NPs because they show strong antibacterial activity. In this review we discuss the mode of synthesis and the proposed mechanism of biocidal antibacterial activity of metal NPs. These mechanisms include DNA degradation, protein oxidation, generation of reactive oxygen species, lipid peroxidation, ATP depletion, damage of biomolecules and membrane interaction.

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“…This method has advantages of controlling the nanoparticle size, imparting high purity, and being environmentally-friendly and cost-effective [ 1 , 16 , 30 , 99 ]. Therefore, this technique is applied in the large scale manufacture of many bimetallic (Rh–Pd, Au–Pt, Pt–Au, Ag–Au, Cu–Ag, At–Ni) and trimetallic (Pd–Fe–Ni, Pd–Ag–Cd) alloy particles [ 16 , 19 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 ].…”

Section: Methods Of Synthesizing Alloy Nanoparticlesmentioning

confidence: 99%

Synthesis, Properties, and Biological Applications of Metallic Alloy Nanoparticles

Huynh

Pham

Kim

et al. 2020

IJMS

146

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Metallic alloy nanoparticles are synthesized by combining two or more different metals. Bimetallic or trimetallic nanoparticles are considered more effective than monometallic nanoparticles because of their synergistic characteristics. In this review, we outline the structure, synthesis method, properties, and biological applications of metallic alloy nanoparticles based on their plasmonic, catalytic, and magnetic characteristics.

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Green synthesis and electrochemistry of Ag, Au, and Ag–Au bimetallic nanoparticles using golden rod (Solidago canadensis) leaf extract

Cited by 71 publications

References 37 publications

Multimetallic Nanoparticles as Alternative Antimicrobial Agents: Challenges and Perspectives

Multimetallic Nanoparticles as Alternative Antimicrobial Agents: Challenges and Perspectives

Bactericidal Antibacterial Mechanism of Plant Synthesized Silver, Gold and Bimetallic Nanoparticles

Synthesis, Properties, and Biological Applications of Metallic Alloy Nanoparticles

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