AI Article Synopsis
- The study focuses on creating nanocomposites using silicon carbide nanofibers, silver nanoparticles, and cellulose, with silver nanoparticles synthesized through a chemical reduction process using hydrazine and surfactants.
- Determining the antibacterial activity involved respiration tests, enzymatic analysis for oxidative stress, and viability testing with an epifluorescence microscope, revealing strong bactericidal effects against both Gram-negative and Gram-positive bacteria.
- The findings suggest that the nanocomposite could be beneficial for water and air purification technologies, as cellulose helps retain silver nanoparticles and boosts bacterial adhesion to the material.
Article Abstract
We describe the synthesis of nanocomposites, based on nanofibers of silicon carbide, silver nanoparticles, and cellulose. Silver nanoparticle synthesis was achieved with chemical reduction using hydrazine by adding two different surfactants to obtain a nanocomposite with silver nanoparticles of different diameters. Determination of antibacterial activity was based on respiration tests. Enzymatic analysis indicates oxidative stress, and viability testing was conducted using an epifluorescence microscope. Strong bactericidal activity of nanocomposites was found against bacteria and , which were used in the study as typical Gram-negative and Gram-positive bacteria, respectively. It is assumed that reactive oxygen species generation was responsible for the observed antibacterial effect of the investigated materials. Due to the properties of silicon carbide nanofiber, the obtained nanocomposite may have potential use in technology related to water and air purification. Cellulose addition prevented silver nanoparticle release and probably enhanced bacterial adsorption onto aggregates of the nanocomposite material.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5224642 | PMC |
| http://dx.doi.org/10.3390/nano6090171 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Eco-friendly zinc oxide nanoparticle biosynthesis powered by probiotic bacteria.
Appl Microbiol Biotechnol
January 2025
School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia.
The rapid advancement of nanotechnology, particularly in the realm of pharmaceutical sciences, has significantly transformed the potential for treating life-threatening diseases. A pivotal aspect of this evolution is the emergence of "green nanotechnology," which emphasizes the environmentally sustainable synthesis of raw materials through biological processes. This review focuses on the biological synthesis and application of zinc oxide (ZnO) nanoparticles (NPs) from probiotic bacteria, particularly those sourced from wastewater.
View Article and Find Full Text PDFIsolation and structure determination of a new antibacterial lanthipeptide derived from the marine derived bacterium Lysinibacillus sp.CTST325.
World J Microbiol Biotechnol
January 2025
Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan.
Marine resources are attractive for screening new useful bacteria. From a marine sediment sample, we performed isolation and screening of bacterial strains in search of new bioactive compounds. HPLC and ESI-MS analysis indicated that the new bacterium, Lysinibacillus sp.
View Article and Find Full Text PDFEnantiomer-Dependent Supramolecular Antibacterial Therapy for Drug-Resistant Bacterial Keratitis.
Langmuir
January 2025
National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China.
Bacteria have the potential to exhibit divergent stereochemical preferences for different levels of chiral structures, including from molecule, supramolecule, to nanomicroscale helical structure. Accordingly, the structure-activity relationship between chirality and bactericidal activity remains uncertain. In this study, we seek to understand the multivalent molecular chirality effect of chiral supramolecular polymers on antibacterial activity.
View Article and Find Full Text PDFTransition metal complexes: next-generation photosensitizers for combating Gram-positive bacteria.
Future Med Chem
January 2025
Department of Biophysics, School of Basic Medical Sciences, Health Science Centre, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R., China.
The rise of antibiotic-resistant Gram-positive bacterial infections poses a significant threat to public health, necessitating the exploration of alternative therapeutic strategies. A photosensitizer (PS) can convert energy from absorbed photon into reactive oxygen species (ROS) for damaging bacteria. This photoinactivation action bypassing conventional antibiotic mechanism is less prone to resistance development, making antibacterial photodynamic therapy (aPDT) highly efficient in combating Gram-positive bacteria.
View Article and Find Full Text PDFAntimicrobial Effect and Cytocompatibility After Using Different Decontamination Methods on Titanium Implant Surfaces: An In Vitro Study.
Clin Oral Implants Res
January 2025
Etiology and Therapy of Periodontal and Periimplant Diseases (ETEP) Research Group, Faculty of Dentistry, Complutense University, Madrid, Spain.
Aim: To evaluate in vitro the antibacterial efficacy and cytocompatibility of different implant-decontamination methods, using both 2D and 3D peri-implant mucosa models.
Methods: Four decontamination methods [chlorhexidine (CHX), electrolytic treatment (GS), curcumin (CUR), xanthohumol (XN)] were compared in four independent experiments, three with a 2D peri-implant mucosa model on titanium surfaces and another on a 3D peri-implant mucosa model. These decontamination procedures were tested for their antibacterial effect using a multispecies biofilm model with Streptococcus oralis, Actinomyces naeslundii, Veillonella dispar, and Porphyromonas gingivalis for 24 h.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!