Comprehensive evaluation of the antibacterial and antibiofilm activities of NiTi orthodontic wires coated with silver nanoparticles and nanocomposites: an in vitro study.

Background: Fixed orthodontic appliances act as a niche for microbial growth and colonization. Coating orthodontic wires with antimicrobial silver nanoparticles (AgNPs) and nanocomposite was adopted in this study to augment the biological activity of these wires by increasing their antibacterial and antibiofilm properties and inhibiting bacterial infections that cause white spot lesions and lead to periodontal disease.

Methods: Three concentrations of biologically synthesized AgNPs were used for coating NiTi wires.

The impact and safety of encapsulated nanomaterials as a new alternative against carbapenem resistant bacteria. a systematic review.

The emergence of multi drug resistant bacterial infections has caused a critical problem with implication on hospitalization and mortality rates. This systematic review aims to review the combined antimicrobial effect of nanoparticles attached to the traditionally used antibiotics, to overcome the antibiotic resistance crisis. In this systematic search we focused on preclinical studies that have used animal models, to test and evaluate the effect of nanomaterials added to antibiotics against gram negative bacteria with carbapenem resistance.

Risk factors in surgery of gastroduodenal ulcer disease in patients with schistosomal portal hypertension.

The present study was conducted to determine the risk factors associated with surgical treatment of peptic ulcer disease (PUD) in patients with schistosomal hepatic fibrosis (SHF). The medical records of 32 patients treated at the Department of Surgery, Alexandria Faculty of Medicine between 1984 and 1994 were reviewed and data were analyzed. Twenty-five patients were male and seven were female, with a mean age of 43.