Ultrasonic coating of medical textiles with antimicrobal nanoparticles

According to European Centre of Disease Prevention and Control (ECDC), every year 5-6% of patients come to nosocomial infections. Due to rapid spreading of superbacteria, resistant to any antibiotics the situation is becoming serious. Decreasing of the number of hospital infections can be obtained by using anitibacterial coatings at textiles. Textiles should be antibacterial, coating durable and not harmful for patients. There are plenty of

Functionalization of polydimethylsiloxane and stainless steel surfaces with disinfectants

Microbial adhesion onto surfaces is at the root of serious problems in many areas, often compromising the disinfection practices. In clinical settings, microorganisms can colonize abiotic surfaces, equipment and medical devices. This problem is aggravated when microorganisms adopt a sessile lifestyle and live in biofilms. The best approach to prevent the occurrence of cell adhesion and biofilm formation, with subsequent spread of microorganisms between equipment

Equisetum arvense mediated synthesis of silver nanoparticles and its application as antibacterial suspension

High consumption of antibiotics has led to resistance of pathogenic microorganisms, which prompted the testing of antimicrobial activity of various plant extracts or other substances in order to find new antimicrobial agents. Alternatively, silver and silver-based topical dressings have been used to treat bacterial infections. To overcome the problems associated with the excessive usage of antibiotics and chemicals, there is a need of eco-friendly synthesis

Agar/ nanosilver composite coatings for prevention of biofilm formation

Bacterial contamination on various surfaces is very common and causes serious problems, particularly on hospital surfaces/furniture and medical devices The formation of biofilms on such surfaces is recognized as the most critical biological contamination due to a difficult removal of microorganisms within the biofilm and their high resistance to different antimicrobial agents. In an attempt to overcome these problems, various strategies have been employed to

Surface modifications for antimicrobial effects in the healthcare setting: a critical overview

Summary The spread of infections in healthcare environments is a persistent and growing problem in most countries, aggravated by the development of microbial resistance to antibiotics and disinfectants. In addition to indwelling medical devices (e.g. implants, catheters), such infections may also result from adhesion of microbes either to external solid–water interfaces such as shower caps, taps, drains, etc., or to external solid–gas interfaces such as

Si TECHNOLOGY: Innovative Textile Functionalization

Smart Inovation is a Portuguese nanotechnology company that offers innovative solutions for the functionalization of different materials in the scope of health, well-being and protection. Unique and innovative, the Si Technology is patented in 147 countries and offers multiple applications for multiple industries, products and materials. The Si Technology consists of a matrix o nano/microparticles that can be fixed to different substracts and carry different

STSM: Fabrication of electrospun antimicrobial nanofibers based on phytochemicals

STSM asignment description: The objective of this STSM is the fabrication of phytochemical based antimicrobial nanofibers via electrospinning which may find application in medical devices for the purpose of infection prevention and control. Through collaboration with TÜBİTAK MRC and Zurich University, it is planned to perform the nanofabrication studies and some of the preliminary morphological characterisations at the Zurich University, and then to done the

STSM: Evaluating the anti-biofilm activity of surfaces composed of ZnO/Ag heterostructures

STSM completed: ZnO/Ag heterostructures are expected to exhibit UVA-induced photocatalytic effect which are due to the presence of ZnO and magnified by the presence of Ag nanoparticles. While these surfaces have been shown to be effective against planktonic bacteria, their action against biofilms is still unknown. As such, the objective of this STSM is to assess the efficacy of ZnO/Ag surfaces against mono- or multi-species

Comparative performance of a panel of commercially available antimicrobial nanocoatings in Europe

Background Bacterial resistance against the classic antibiotics is posing an increasing challenge for the prevention and treatment of infections in health care environments. The introduction of antimicrobial nanocoatings with active ingredients provides alternative measures for active killing of microorganisms, through a preventive hygiene approach. Purpose The purpose of this study was to investigate the antimicrobial activity of a panel of antimicrobial coatings available on the

Mechanism of copper surface toxicity in Escherichia coli O157:H7 and Salmonella involves immediate membrane depolarisation followed by slower rate of DNA destruction which differs from that observed for Gram-positive bacteria

We have reported previously that copper I and II ionic species, and superoxide but not Fenton reaction generated hydroxyl radicals, are important in the killing mechanism of pathogenic enterococci on copper surfaces. In this new work we determined if the mechanism was the same in non-pathogenic ancestral (K12) and laboratory (DH5α) strains, and a pathogenic strain (O157), of Escherichia coli. The pathogenic strain exhibited prolonged