Without any preprocessing, silk fabric has lower ability to hold on water due to the smooth morphology of silk fibers. Therefore, patterns directly printed with pigment inks have poor color yields and easily bleed. Plasma surface-treatment of silk fabric was carried out in an oxygen atmosphere under different experimental conditions. The samples were printed with magenta pigment ink after treat...

This paper aims to investigate the mechanical properties of specimens printed by 3D open-source printers. It discusses effect five factors (part orientation, layer height, extrusion width, nozzle diameter, and filament temperature) on ultimate tensile strength impact toughness 3D-printed samples. A 25–1 resolution V fractional factorial experiment was run with 16 samples a Prusa I3 MK3S in PLA....

Samples made of ABS material were produced on devices from three different manufacturers: Stratasys, Velleman, 3Novatica. The quality the printed surface was improved by vaporization with acetone vapours. Roughness measurements performed, which proved improvement after vaporization. structure samples also tested using a computer microtomography. It has been shown that excessive exposure to solv...

In the field of food packaging, addition exfoliated layered silicates in polymers has been established to improve polymers’ gas barrier properties. Using these as coatings protect smart textiles from oxidation and corrosion while maintaining their textile properties should significantly extend lifetime promote market penetration. The aim this study was print new polymer dispersions containing s...

Manganese phthaloyanine polymer thick films were fabricated using screenprinting techniques. The optical parameters were obtained from the analysis of the absorption spectra over a wavelength range of 385-900nm. The d.c. electrical measurements were carried out in a range of 0-30 volts. The effects of γ-radiation on the optical and the electrical properties were investigated for dosimetry appli...

An electrochemical affinity sensor for the determination of fumonisins mycotoxins (Fms) using monoclonal antibody modified screen-printed gold electrode with carbon counter and silver-silver chloride pseudo-reference electrode is reported in this work. A direct competitive enzyme-linked immunosorbent assay (ELISA) was initially developed, exhibiting a detection limit of 100 µg·L(-1 )for fumonis...

Two biosensors based on Trametes versicolor laccase (TvL) were developed for the determination of phenolic compounds. Commercial oxygen electrode and ferrocene-modified screen-printed graphite electrodes were used for preparation of laccase biosensors. The systems were calibrated for three phenolic acids. Linearity was obtained in the concentration range 0.1-1.0muM caffeic acid, 0.05-0.2muM fer...

Oblique Incidence Reflectivity Difference (OI-RD), a system developed by Zhu et al, is a versatile, high-throughput, label-free method for probing reactions of biological molecules printed on standard substrates. However, its sensitivity range is currently not as developed as that of label-based techniques. The effectiveness of using recombinant fusion protein A/G to immobilize antibodies on a ...

Copper is an interesting material for printed electronics inks because, for example, of its good conductivity and lower raw material price compared to silver. However, post-processing Cu inks is challenging because of non-conductive copper oxide. In this work, inkjet-printed Cu nanoparticle structures were sintered on a polyimide substrate with a continuous-wave 808-nm diode laser. Laser sinter...

MOTIVATION A major focus of current cancer research is to identify genes that can be used as markers for prognosis and diagnosis, and as targets for therapy. Microarray technology has been applied extensively for this purpose, even though it has been reported that the agreement between microarray platforms is poor. A critical question is: how can we best combine the measurements of matched gene...