Objective: To assess the biofilm inhibition activity of biosynthesized silver nanoparticles (AgNPs) using Curcuma longa.
Method: Characterizations of these biogenic nanoparticles were done by UV-Vis spectroscopy, TEM, EDX and nanoparticles tracking analyzer. The antibiofilm activity of AgNPs against S. aureus and S. pneumoniae was carried out by 96 well plate method. Further, the combined effect of AgNPs with the antibiotic was studied against S. aureus and S. pneumoniae.
Results: UV-spectroscopic analysis showed a surface plasmon resonance peak at 415nm. The shape of AgNPs is spherical with an average size of 20-40 nm while the elemental silver was confirmed by EDX analysis. These biosynthesized AgNPs have anti-biofilm activity against S. aureus and S. pneumoniae. Furthermore, the combined effect of AgNPs with an antibiotic, showed enhanced anti-biofilm activity against both the strains under study.
Conclusion: C. longa mediated AgNPs showed potent anti-biofilm activity.
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http://dx.doi.org/10.2174/2211738506666180629142001 | DOI Listing |
Vet Res Forum
December 2024
Department of Microbiology, Faculty of Veterinary Medicine, Bursa Uludag University, Bursa, Türkiye.
Fungal contamination in drinking water has garnered considerable attention over the past few decades, especially considering the detrimental consequences of pathogenic fungal species on both human and animal health. The formation of biofilms by certain species is a considerable factor contributing to the emergence of severe fungal infections. This research was designed to isolate and identify fungi, particularly those capable of forming biofilms from 150 samples of drinking water sourced from various locations.
View Article and Find Full Text PDFMicrob Pathog
January 2025
Department of Molecular Biology & Bioinformatics, Tripura University (A Central University), Suryamaninagar-799022, Tripura, India. Electronic address:
Biofilm formation, extracellular substance synthesis, and virulence factor production all have a major impact on drug tolerance and infection propagation caused by Staphylococcus aureus. Flavonoid compounds have been explored as potential solutions to enhance antibiotic efficacy against the biofilm formation of pathogenic microbes. Quercetin (QER) has previously demonstrated antibacterial and antibiofilm properties.
View Article and Find Full Text PDFFuture Microbiol
January 2025
Department of Biological Sciences, Missouri University of Science and Technology, Rolla, MO, USA.
Aim: Chronic wound infections present a prevalent medical issue and a multifaceted problem that significantly impacts healthcare systems worldwide. Biofilms formed by pathogenic bacteria are fundamental virulence factors implicated in the complexity and persistence of bacterial-associated wound infections, leading to prolonged recovery times and increased risk of infection. This study aims to investigate the antibacterial effectiveness of commonly employed bioactive wound healing compositions with a particular emphasis on their effectiveness against common bacterial pathogens encountered in chronic wounds - , , and to identify optimal wound product composition for managing chronic wound infections.
View Article and Find Full Text PDFMicrob Pathog
January 2025
Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil. Electronic address:
Peri-implantitis associated with dental implants shares characteristics with destructive periodontal diseases. Both conditions are multifactorial and strongly correlated with the presence of microorganisms surrounding the prostheses or natural dentition. This study aimed to evaluate the antimicrobial activity and toxicity of a mucoadhesive hydrogel functionalized with aminochalcone (HAM-15) against Aggregatibacter actinomycetemcomitans, Fusobacterium periodonticum, Prevotella intermedia, Porphyromonas gingivalis, Tannerella forsythia, and Candida albicans.
View Article and Find Full Text PDFVet Microbiol
January 2025
Department of Biotechnology and Food Microbiology, Faculty of Biotechnology and Food Sciences, Wrocław University of Environmental and Life Sciences, Poland. Electronic address:
Avian pathogenic Escherichia coli (APEC) is a principal etiologic agent of avian colibacillosis, responsible for significant economic losses in the poultry industry due to high mortality and disease treatment with antibiotics. APEC and its ability to form biofilms on food and processing surfaces contributes to its persistence within farms. Bacteriophages are promising antibacterial agents for combating APEC.
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