The extensive use of silver nanoparticles (SNPs) as antimicrobial in food, clothing and medicine, leads inevitably to a loss of such nanomaterial in soil and water. Little is known about the effects of soil contamination, in particular, on microbial cells, which play a fundamental ecological role. In this work, the impact of SNPs on forest soil has been studied, investigating eco-physiological indicators of microbial biomass and microbial diversity with culture-dependent and independent techniques. Moreover, SNPs bioavailability and uptake were assessed. Soil samples were spiked with SNPs at two different concentrations (10 and 100 μg g(-1)dw) and incubated with the relative controls for 30, 60 and 90 days. The overall parameters showed a significant influence of the SNPs on the soil microbial community, revealing a marked shift after 60 days of incubation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jhazmat.2014.07.055 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Microscopic evidence for nanoparticle-mediated growth of native gold in sulfide deposits at the Higashi-Aogashima Knoll Caldera hydrothermal field.
PLoS One
January 2025
Faculty of Science and Engineering, Waseda University, Tokyo, Japan.
Gold (or electrum) in hydrothermal fluid precipitates directly from gold sulfide complex and/or partly via suspended nanoparticles. The hydrothermal fluid contains "invisible gold" that is atomically dispersed in sulfide minerals or as nanoparticles with a size of less than 10 nm. However, the contribution of these gold nanoparticles to the formation of native gold and its alloy with silver (electrum) remains unclear.
View Article and Find Full Text PDFHighly Sensitive Spectrofluorimetric and Colorimetric Quantitation of Neomycin Using Nanosilver-Fluorescein Hybrid: A Comprehensive Assessment of Greenness and Blueness.
Luminescence
January 2025
Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
Two versatile yet simple methods, colorimetric and spectrofluorimetric, were utilized for the quantitation of nonchromophore neomycin using silver nanoparticles modified with fluorescein. Fluorescein was excited at 485 nm (emission at 515 nm); when it is deposited on the surface of silver nanoparticles, its fluorescence intensity at 515 nm is quenched. Neomycin restores the fluorescence level at 515 nm by displacing fluorescein from nanoparticle binding sites.
View Article and Find Full Text PDFPhytonanoparticles as novel drug carriers for enhanced osteogenesis and osseointegration.
Discov Nano
January 2025
Oral Health Institute, Hamad Medical Corporation, Doha, Qatar.
Phytonanoparticles have emerged as a promising class of biomaterials for enhancing bone regeneration and osseointegration, offering unique advantages in biocompatibility, multifunctionality, and sustainability. This comprehensive review explores the synthesis, characterization, and applications of phytonanoparticles in bone tissue engineering. The green synthesis approach, utilizing plant extracts as reducing and stabilizing agents, yields nanoparticles with intrinsic bioactive properties that can synergistically promote osteogenesis.
View Article and Find Full Text PDFMultiple physiological response analyses of Chlorella vulgaris exposed to silver nanoparticles, ciprofloxacin, and their combination.
Environ Toxicol Chem
January 2025
Laboratorio de Ecotoxicología, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina.
The combination of silver nanoparticles (AgNPs) and ciprofloxacin (CIP) can be considered an alternative to combat multidrug-resistant microbial infections. However, knowledge about their combined toxicity is scarce after being released in an aquatic environment. The present study evaluated the individual toxicity of AgNPs and CIP and their combined toxicity on the unicellular green microalga Chlorella vulgaris, evaluating cellular responses and conducting metabolomic analysis.
View Article and Find Full Text PDFShelf-life enhancement of silver carp fillets using psyllium gum/sodium-alginate coatings incorporated with essential oil and CuO nanoparticles.
Food Sci Technol Int
January 2025
Department of Food Hygiene, Science and Research Branch, Islamic Azad University, Tehran, Iran.
In the present study, the effects of psyllium gum/sodium-alginate (PG/SA) coatings incorporated with essential oil (HEO) and copper oxide nanoparticles (CuO NPs) on various properties of silver carp fillets were investigated and monitored over 15 days of chilled storage condition (4 °C ± 1). The control sample (uncoated), PG/SA with 3% CuO NPs, PG/SA with 1% HEO, and PG/SA with 3% CuO NPs and 1% HEO (PG/SA-HC) were examined through chemical, microbial, and sensory analysis. The results revealed that the PG/SA-HC sample after 15 days of refrigeration demonstrated a significantly lower value than the others for total viable counts (8.
View Article and Find Full Text PDFWant 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!