In brief

Abstract

PAGE 778 Researchers from the USA have demonstrated a novel way of fabricating UV photodetectors – by printing them using an ink made from salmon DNA. The cheap-to-produce biopolymer product shows good conductivity and adheres well to a large variety of surfaces. PAGE 738 An implantable CMOS device that monitors blood glucose levels continually has been developed by researchers from Japan. The device, an improvement on their previous work, measures the intensity of light produced by glucose-responsive fluorescent hydrogel. The DNA based ink adheres well to a variety of materials PAGE 752 Researchers from Korea have developed a new 3D object registration technique for mobile robot platforms. The technique uses point cloud distribution to allow robots to register objects with fewer scans, while reducing the computational load and increasing the accuracy. The device is less invasive and can be injected with a commercially available syringe PAGE 769 A miniaturised dual-band branch-line coupler has been developed by researchers from Iceland. The coupler achieves a size reduction of 75% compared to the conventional structure, with minimal performance impact. This reduction in size could lead to miniaturised components for radar and polarisation atennas. The researchers tested the technique experimentally using three observation robots PAGE 733 In Japan, researchers have investigated and verified the feasibility of a digitally tunable metamaterials-based antenna. Using a leaky-wave antenna with periodic J-shaped metamaterial patches, the researchers demonstrated that they could pseudo continuously control the arrays dispersion pattern. This could lead to use in smart cities with the Internet of Things. The topography of the coupler allows for the drastic size reduction The new array opens and closes gaps between the J-shapes to alter the radiation pattern