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The emergence and spread of antibiotic-resistant (AR) bacterial strains and biofilm-associated diseases have heightened concerns about exploring alternative bactericidal methods. The WHO estimates that at least 700 000 deaths yearly are attributable to antimicrobial resistance, and that number could increase to 10 million annual deaths by 2050 if appropriate measures are not taken. Therefore, the increasing threat of AR bacteria and biofilm-related infections has created an urgent demand for scientific research to identify novel antimicrobial therapies. Nanomaterials (NMs) have emerged as a promising alternative due to their unique physicochemical properties, and ongoing research holds great promise for developing effective NMs-based treatments for bacterial and viral infections. This review aims to provide an in-depth analysis of NMs based mechanisms combat bacterial infections, particularly those caused by acquired antibiotic resistance. Furthermore, this review examines NMs design features and attributes that can be optimized to enhance their efficacy as antimicrobial agents. In addition, plant-based NMs have emerged as promising alternatives to traditional antibiotics for treating multidrug-resistant bacterial infections due to their reduced toxicity compared to other NMs. The potential of plant mediated NMs for preventing AR is also discussed. Overall, this review emphasizes the importance of understanding the properties and mechanisms of NMs for the development of effective strategies against antibiotic-resistant bacteria.
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http://dx.doi.org/10.1039/d3ra05816f | DOI Listing |
Nat Rev Microbiol
September 2025
National Centre for Antimicrobial Stewardship, Department of Infectious Diseases, Melbourne Medical School, The University of Melbourne, Carlton, Victoria, Australia.
The global rise of antimicrobial resistance (AMR) poses a profound threat to human, animal and environmental health. Although antimicrobials have revolutionized modern medicine, their overuse and misuse have accelerated AMR, necessitating urgent, multisectoral action. Antimicrobial stewardship (AMS), a set of coordinated strategies that promote responsible antimicrobial use, has emerged as a key intervention in managing AMR.
View Article and Find Full Text PDFMicrob Drug Resist
September 2025
Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, I.R. Iran.
Fluoroquinolone resistance in , particularly uropathogenic (UPEC), is a growing concern worldwide. This study investigates the association between mutations in the and genes and fluoroquinolone resistance in UPEC isolates from Urine samples in Iran. In total, 150 UPEC isolates were collected, and then, 12 ciprofloxacin-resistant isolates were selected for molecular analysis.
View Article and Find Full Text PDFBiochim Biophys Acta Biomembr
September 2025
Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, Vienna, Austria.. Electronic address:
Using the stable synthetic analogue 3-aza-dehydroxylysyl-phosphatidylglycerol (3adLPG), the putative role of native staphylococcal LPG in inhibiting the antibiotic daptomycin from binding to its target phosphatidylglycerol (PG), was investigated with respect to interfacial interactions between these lipids, daptomycin, and calcium ions. The influence of lipid monolayer/bilayer composition and interfacial ion concentrations upon the structure and integrity of model membranes were probed after daptomycin challenge using a combination of surface x-ray scattering techniques and fluorescence assays. In models representing the membrane composition of the daptomycin susceptible phenotype consisting of PG/3adLPG in a 7:3 M ratio, calcium ions drive the formation of two separate phases; Ca cross-linked PG/PG pairs and PG/3adLPG ion pairs.
View Article and Find Full Text PDFPrev Vet Med
September 2025
Department of Population Medicine, Ontario Veterinary College, University of Guelph, Ontario, Canada. Electronic address:
Antimicrobial resistance (AMR) poses a significant global health challenge, impacting humans, animals, and the environment. Dogs and cats are vulnerable to urinary tract infections (UTIs), mostly caused by antimicrobial-resistant Escherichia coli, necessitating antimicrobial susceptibility testing (AST) for optimal treatment. This study investigated and evaluated the seasonality of AST and AMR in urinary E.
View Article and Find Full Text PDFEur J Med Chem
August 2025
Dipartimento di Scienze degli Alimenti e del Farmaco (DipALIFAR), Università degli Studi di Parma, Viale delle Scienze, 27/A, 43124, Parma, Italy. Electronic address:
Cystic fibrosis (CF) is a multifaceted disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. The resulting thick mucus accumulation increases the risk of microbial infections, leading to chronic lung inflammation, progressive tissue damage, and pulmonary exacerbations (PEs). Respiratory viruses may facilitate bacterial colonization, significantly contributing to PEs.
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