5 documents found, page 1 of 1
Atmospheric plasma and UV polymerisation for developing sustainable anti-adhesi...
Caykara, Tugce; Fernandes, Sara; Braga, Adelaide Correia; Rodrigues, Joana Lúcia Lima Correia; Rodrigues, L. R.; Silva, Carla JoanaEnhancing the hydrophilicity of polymeric materials is an important step for achieving anti-adhesiveness. Thus, in this study, atmospheric plasma as a pre-treatment was combined with a UV grafting process to obtain a durable surface modification on polyethylene terephthalate (PET). The most promising conditions for the atmospheric plasma process were found to be 15 kW power and 4 m/min speed, leading to a conta...
Can superhydrophobic PET surfaces prevent bacterial adhesion?
Caykara, Tugce; Fernandes, Sara; Braga, Adelaide Correia; Rodrigues, Joana Lúcia Lima Correia; Rodrigues, L. R.; Silva, Carla Joana Santos MarinhoPrevention of bacterial adhesion is a way to reduce and/or avoid biofilm formation, thus restraining its associated infections. The development of repellent anti-adhesive surfaces, such as superhydrophobic surfaces, can be a strategy to avoid bacterial adhesion. In this study, a polyethylene terephthalate (PET) film was modified by in situ growth of silica nanoparticles (NPs) to create a rough surface. The surf...
Modification of PET surfaces with Gum Arabic towards its bacterial anti-adhesiv...
Caykara, Tugce; Silva, José; Fernandes, Sara; Braga, Adelaide; Rodrigues, Joana Lúcia Lima Correia; Rodrigues, L. R.; Silva, CarlaBacterial adhesion onto hospital material surfaces still represents a big healthcare issue, being preventive measures required to mitigate this problem, such as increasing material surface hydrophilicity. In the present study, gum Arabic, a hydrophilic polysaccharide, was used to modify the surface of polyethylene terephthalate (PET). Initial water contact angle (WCA) and WCA after several washing cycles were s...
Exploring the potential of polyethylene terephthalate in the design of antibact...
Caykara, Tugce; Sande, Maria; Azoia, Nuno; Rodrigues, L. R.; Silva, Carla JoanaPolyethylene terephthalate (PET) is one of the most used polymeric materials in the health care sector mainly due to its advantages that include biocompatibility, high uniformity, mechanical strength and resistance against chemicals and/or abrasion. However, avoiding bacterial contamination on PET is still an unsolved challenge and two main strategies are being explored to overcome this drawback: the anti-adhes...
Design of materials to capture and enrich bacterial samples
Sande, Maria; Caykara, Tugce; Silva, Carla; Rodrigues, L. R.; Azoia, NunoBackground: Diseases arising from pathogenic infections cause immense loss of life and illnesses globally besides having severe negative social and economic impact. Current methods of diagnosing such infections rely mostly on culture-based assays which are complex, time consuming and expensive. Other related problems include low detection limits of diagnostic methods, thus requiring methods to concentrate and e...