For most fluorescent oxygen sensors developed today, their fabrication process is either time-consuming or needs specialized knowledge. In this work, a robust fluorescent oxygen sensor is facilely constructed by dissolving pyrene molecules into CTAB aqueous solution. The as-prepared pyrene@micelle sensors have submicron-sized diameter, and the concentration of utilized pyrene can be reduced as ...

Development of a reliable microelectrode dissolved oxygen sensor Maciej Sosna a, Guy Denuault a,∗, Robin W. Pascal b, Ralf D. Prien c, Matt Mowlem b a School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK b National Oceanography Centre, Southampton, University of Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, UK c Baltic Sea Research Institute,...

This study aims to characterize phosphate buffer and urease enzymes through the absorbance spectrum of UV-Vis FTIR using tungsten as indicator electrode. The method used in this research is biosensor potentiometric carried out Laboratory Faculty Mathematics Natural Sciences, State University Medan Beacukai Belawan laboratory. characterization electrolyte solutions various compositions showed th...

Nanocomposites films of (polymer blend-ceramics) were prepared from (PVA-PAA) blend and (PVA-PAA) blend doped with niobium carbide nanoparticles for humidity sensors have low cost, easy fabrication, high sensitivity, lightweight and high corrosion resistance. The structural, electrical and optical properties of (PVA-PAA-NbC) nanocomposites have been studied. The D.C electrical properties of (PV...

An essential requirement for providing secure services in wireless sensor networks is the ability to establish pairwise keys among sensors. Due to resource constraints on the sensors, the key establishment scheme should not create significant overhead. To date, several key establishment schemes have been proposed. Some of these have appropriate connectivity and resistance against key exposure, ...

The C-3 phenolic hydroxy group containing morphine derivatives (morphine, oxymorphone, naloxone, naltrexone) are excellent candidates for the synthesis of 3-O-functionalized molecules. Achieving free carboxylic gives opportunity further modification and conjugation that could be used immunization immunoassays. For this purpose ethyl bromo- chloroacetate can as O-alkylating agents. Hydrolyzing p...