results results showed desirable antimicrobial effects of the silver nanoparticles and plant extract on the formation of the pseudomonas aeruginosa biofilm and the highest effect was observed in silver nanoparticles and the lowest inhibitory effects were observed in bucks beard and prangos ferulaceae. conclusions medicinal plants used in the study decreased the rate of biofilm formation. since ...

Background: Sponges and sea anemones do not have specialized defense organs. Instead, they rival harmful microorganisms by producing certain compounds. These compounds can also be useful against some human pathogens. This study aimed to investigate the antimicrobial effects of bioactive products from these marine animals. Methods: Two species of sea anemone <e...

background and objectives: biomaterials are widely used in medical devices such as urinary catheters. one of the main problems associated with long term using of the urinary catheters is biofilm formation on their surfaces. many techniques have been presented to reduce the biofilm formation. one of the most revolutionary techniques allowing such surface fictionalization is plasma surface modific...

Objective(s) Methicillin-resistant Staphylococcus aureus (MRSA) is an important cause of nosocomial and community infections. Biofilm formation, mediated by a polysaccharide intercellular adhesin (PIA) and encoded by the ica operon, is considered to be an important virulence factor in both S. epidermidis and S. aureus. However, the clinical impact of the ica locus and PIA production is less w...

biofilm of pseudomonas aeruginosa, an opportunistic pathogen, can cause serious health problems, such as chronic infections, especially in immunocompromised patients. many studies have suggested administration of new generation of antibiotics, as p. aeruginosa biofilms have developed high resistance to antimicrobial drugs. this study reports the inhibitory effect of three medicinal plant extrac...

Background & Aims of the Study: Rhodococci according to possess large genome, their active metabolism and survival under extreme conditions, are highly regarded for biodegradation and bioremediation of different pollutants especially heavy metals in the environment. Biofilms are more resistant to heavy metals than free-swimming organisms. The aim of this study was biofilm forma...

Objective(s):The inhibitory effects of iron chelators, and FeCl3 chelation on biofilm formation and swarming motility were investigated against an opportunistic human pathogen Pseudomonas aeruginosa. Materials and Methods:The inhibitory activity of 2,2’-bipyridyl, lipoic acid, kojic acid and picolinic acidonbiofilm formation of P. aeruginosa strain PAO1 and three clinical isolates (P. aeruginos...

introduction bacterial biofilms can be both useful and harmful based on their combination and locations. biofilm formation occurs as a stepwise process. their formation in liquid transportation pipes used for milking system and drinking water in animal farms may create some problems and is a potential source of pollution. speed of biofilm formation depends on many factors including: constructio...