We present the cases of two laryngectomised patients who were treated for granulomas of the tracheostomy orifice with a silver nitrate pencil. During tracheostomy care, the tip broke off, was aspirated and fell into the bronchial tree. Necrotising ulcerative injuries of the right bronchial tree with clear delineation were found without lesions in the subsegmental division. To prevent the risk of secondary stenosis of the small airways induced by the spread of silver nitrate, we did not irrigate with saline solution as previously reported. Antibiotherapy and endoscopic monitoring were performed. Complete healing in 4-6 weeks was found without stenosis of the bronchial tree or bleeding.
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http://dx.doi.org/10.1136/thoraxjnl-2020-215727 | DOI Listing |
Int J Phytoremediation
January 2025
Water Management and Treatment Technologies Institute, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia.
This study introduces a sustainable biological approach for synthesizing silver nanoparticles (AgNPs) using Conocarpus seeds, aimed at improving the adsorption and photocatalytic degradation of methylene blue (MB) in wastewater treatment. The photocatalytic efficiency of AgNPs, synthesized under varying concentrations of silver nitrate (AgNO) and pH levels, was evaluated, together with the effectiveness of a photocatalytic reactor. The synthesized samples were characterized using scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Fourier-transform infrared (FT-IR) spectroscopy, and atomic force microscopy (AFM).
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Bio-Health Convergence, Kangwon National University, Chuncheon 24341, Republic of Korea. Electronic address:
Silver nitroprusside complex nanoparticles (AgN NPs) have garnered significant attention for their antimicrobial properties. However, challenges such as toxicity and limited biocompatibility often hinder their practical applications. Therefore, this study introduces a combined approach to fabricating AgN NPs with chitosan (CS), resulting in CS-AgN nanocomposites (CS-AgN NCs) with cytocompatibility.
View Article and Find Full Text PDFCurr Pharm Biotechnol
January 2025
Assistant Professor, Dental Research Center, Department of Oral and Maxillofacial Pathology, School of Dentistry, Birjand University of Medical Sciences, Birjand, Iran.
Background: The increasing prevalence of antibiotic-resistant bacteria necessitates exploring nanotechnology as a potential solution for microbial elimination.
Objectives: This study aimed to investigate the antimicrobial and antioxidant effects of silver nanoparticles synthesized using aqueous extract from the Ephedra gerardiana (E. gerardiana) plant (EG@AgNPs).
Sci Rep
January 2025
Chemistry Department, Faculty of Science, Damietta University, New Damietta, 34517, Egypt.
The removal of toxic nitrophenols from the industrial wastewater is urgently needed from health, environmental and economic aspects. The present study deals with the synthesis of crosslinked vinyl polymer Poly(divinylbenzene) (poly(DVB)) through free radical polymerization technique using AIBN as initiator and acetonitrile as solvent. The prepared polymer was used as a support for silver nanoparticles via chemical reduction of silver nitrate on the polymer network.
View Article and Find Full Text PDFMicrosc Res Tech
January 2025
Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
Green synthesis of nanoparticles (NPs) is preferred for its affordability and environmentally friendly approach. This study explored the synthesis and characterization of silver NPs (AgNPs) and examined their impact on the growth of Zea mays, both alone and in combination with nickel chloride (NiCl). A methanolic leaf extract was combined with silver nitrate to synthesize AgNPs.
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