Loading
Nanoparticles: Synthesis and Applications · Journal article
Journal of King Saud University - Science · September 2, 2026
Raises a question worth testing. It does not answer one.
This is a narrative review synthesizing literature on metal-based nanoparticles (gold, copper, silver, palladium, and metal oxides) and their proposed antimicrobial mechanisms against multidrug-resistant pathogens. The article identifies multiple potential mechanisms—including reactive oxygen species generation, membrane damage, and DNA impairment—but acknowledges that a comprehensive understanding of how specific physicochemical properties relate to antimicrobial effects remains limited, framing this as an open research question rather than established fact.
Journal article.
Various metal nanomaterials including gold, copper, silver, palladium, and metal oxides (titanium, zinc, iron) have shown promising antimicrobial effects against multidrug-resistant pathogens Nanoparticle antimicrobial effects are mediated by multiple mechanisms: increased intracellular reactive oxygen species production, cell membrane damage, membrane potential disruption, DNA impairment, and biofilm destabilization Antimicrobial efficacy is significantly affected by physicochemical characteristics: size, shape, surface charge, ligand coating, doping, pH stability, surface roughness, and crystalline structure
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
The source did not state who this applies to in practice.
This is a narrative review article examining mechanistic properties of metal nanoparticles against microorganisms, raising questions about physicochemical-antimicrobial relationships rather than reporting empirical clinical evidence or comparative efficacy data.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
What is missing. This record has no reported figures. That is a gap in the analysis, not a judgement about the study.
The swift emergence of multidrug resistance across diverse microorganisms presents a major clinical obstacle for healthcare providers managing infectious diseases. In recent years, studies have concentrated on developing metal-based nanomaterials with antibacterial, antiviral, and antifungal capabilities to address contagious diseases. Various metal nanomaterials, including gold, copper, silver, palladium, and metal oxides like titanium, zinc, and iron, have shown promising antimicrobial effects against multidrug-resistant pathogens. The interaction between nanoparticles and biological systems is significantly affected by their physicochemical characteristics, such as size, shape, surface charge, ligand coating, doping, pH stability, surface roughness, and crystalline structure. Upon interaction, these nanoparticles exert their antimicrobial effects through multiple mechanisms, including increased production of intracellular reactive oxygen species, damage to cell membranes, disruption of membrane potential, DNA impairment, and destabilization of biofilms through interactions with their components. A comprehensive understanding of how specific physicochemical properties of metal nanoparticles relate to their antimicrobial mechanisms remains limited. Therefore, this review article examines key aspects of various nanoparticle types commonly applied in health and medical fields, with a focus on antimicrobial chemotherapy. It explores critical factors employed by nanoparticles to achieve antibacterial effects, as well as the antifungal, antibacterial, and antiviral mechanisms of metal nanoparticles.
Taken from the source record, never inferred. Follow any of these and new work involving them reaches your briefing.