The effect of extracts on the adhesion of to 3D printed polyethylene terephthalate and polylactic acid.

Polyethylene terephthalate (PET) and polylactic acid (PLA) are among the polymers used in the food industry. In this study, crude extracts of were used to treat the surface of 3D printed materials studied, aiming to provide them with an anti-adhesive property against . The hydrophobicity of treated and untreated surfaces was characterized using the contact angle method.

Selective NO Gas Sensors Employing Nitrogen- and Boron-Doped and Codoped Reduced Graphene Oxide.

In this paper, we develop high-performance gas sensors based on heteroatom-doped and -codoped graphene oxide as a sensing material for the detection of NO at trace levels. Graphene oxide (GO) was doped with nitrogen and boron by a chemical method using urea and boric acid as precursors. The prepared samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS).

ZnO Decorated Graphene-Based NFC Tag for Personal NO Exposure Monitoring during a Workday.

This paper presents the integration of a sensing layer over interdigitated electrodes and an electronic circuit on the same flexible printed circuit board. This integration provides an effective technique to use this design as a wearable gas measuring system in a target application, exhibiting high performance, low power consumption, and being lightweight for on-site monitoring. The wearable system proves the concept of using an NFC tag combined with a chemoresistive gas sensor as a cumulative gas sensor, having the possibility of holding the data for a working day, and completely capturing the exposure of a person to NO concentrations.

ZnO-Loaded Graphene for NO Gas Sensing.

This paper investigates the effect of decorating graphene with zinc oxide (ZnO) nanoparticles (NPs) for the detection of NO. In this regard, two graphene sensors with different ZnO loadings of 5 wt.% and 20 wt.