Category Physics

Schematic representation of the monolithically integrated SiPV–LIB device and the electrochemical performance of the bipolar LIB.

A UNIST affiliated team has developed a single-unit, photo-rechargeable portable power source based on high-efficiency silicon solar cells and lithium-ion batteries (LIBs). This newly-developed power source is designed to work under sunlight and indoor lighting, allowing users to power their portable electronics anywhere with access to light. In addition, the new device could power electric devices even in the absence of light.

In this work, the team of Professor Sang-Young Lee and Professor Kwanyoung Seo of Energy and Chemical Engineering at UNIST presented a new class of monolithically integrated, portable PV-battery systems (denoted as ‘SiPV-LIBs’) based on...

1. The robotic arms are highly sensitive to touch, have up to ten degrees of movement, and can perform surgical procedures by means of a single incision.
Copyright : The Hong Kong Polytechnic University
2.The robotic arms are highly sensitive to touch, have up to ten degrees of movement, and can perform surgical procedures by means of a single incision.
Copyright : NISI (HK) Limited

HK researchers have developed a novel surgical robotic system that provides tactile feedback and is capable of single-incision and natural orifice (incision-free) robotic surgery. The system minimizes surgical trauma and is safer than currently available robotic systems...

Scanning Electron Microscope Images of architectured carbon nanotube (CNT) textile made at Illinois. Colored schematic shows the architecture of self-weaved CNTs, and the inset shows a high resolution SEM of the inter-diffusion of CNT among the different patches due to capillary splicing. Credit: University of Illinois

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about 50X higher than copper films, currently used in electronics...

A schematic of a biosensor platform resembling a spider web. Credit: Image courtesy of DGIST (Daegu Gyeongbuk Institute of Science and Technology)

DGIST team has developed a biosensor platform which has 20 times faster detection capability than the existing biosensors using magnetic patterns resembling a spider web.The sensing capability of a biosensor is determined by the resolution of the sensor and the movement and reaction rate of molecules. Many research groups in Korea and other countries have been improving the resolution through the development of nanomaterials but there has been a limitation to improve the sensors’ sensitivity due to the low diffusion transport of biomolcules toward the sensing region.

Professor Kim and his team used a magnetic field in order to overcome the drawb...