In this study, silver nanoparticles (AgNPs) were immobilized on the surface of polyethylene terephthalate (PET) membrane using diethylenetriamine (DETA) as a chemical linker. The molecule DETA was attached to PET via an amide bond following scission polyester ester surface. AgNPs diethylenetriamine-modified silver-nitrogen covalent bond. silver-coated, DETA-modified and unmodified membranes cha...

Cellulose nitrate films (commercially available as LR 115 films were irradiated systematically with alpha particles in the energy range from 1 to 5 MeV with incident angles from 30◦ to 90◦. After etching to remove a thickness of 6.5 m, the lengths of the major and minor axes of the alpha-particle track openings in the films were measured with an image analyser under an optical magnification of ...

Abstract. A new method for automatic counting of etched fission tracks in minerals is described and presented this article. Artificial intelligence techniques such as deep neural networks computer vision were trained to detect surface semi-tracks on images. The can be used an open-source program semi-automated track dating called “AI-Track-tive”. Our custom-trained use the YOLOv3 object detecti...

In the recent past, considerable attention has been devoted to the optical signature of noble metal (Au, Ag, and Cu) nanostructures in the ultraviolet, visible, and nearinfrared spectral ranges, because of their promising applications in optical nanodevices. The optical response of metal nanostructures can be ascribed to surface plasmon resonances (SPR) [1]. In this report, we present our resul...

A national radon survey is still lacking for Greece. Some groups have carried out several more or less local or extended radon surveys and valuable experience has been gained. After the first preliminary survey carried out by our group, where 500 Kodak LR-115 etched track detectors were placed in Greek schools and dwellings for one year, indoor radon measurements were continued by placing the s...

We have been working on ion-track membranes of poly(vinylidene fluoride) (PVDF) because they have attracted a renewed interest for their applications to fuelcells [1]. There were two main conclusions: (i) The PVDF ion-track membranes can efficiently be prepared under milder etching conditions, i.e., without any oxidant additives in the alkaline etching solution [2]; and (ii) irradiation with io...

Filtration can achieve circulating tumor cell (CTC) enrichment from blood. Key parameters such as flow-rate, applied pressure, and fixation, vary largely between assays and their influence is not well understood. Here, we used a filtration system, to monitor these parameters and determine their relationships. Whole blood, or its components, with and without spiked tumor cells were filtered thro...

As a nuclear track detector, CR-39 (polyallyl diglycol carbonate) is used to reveal the products of fusion reactions. Positioned around the OMEGA target chamber, pieces of CR-39 absorb and are damaged by ejected particles. The plastic is then etched in NaOH solution at 80°C for 6 hours, resulting in the formation of nuclear tracks visible under a digital microscope. The etching process also rev...