Yonsei University is a private research university in Seoul, South Korea

A fingertip-sized on-chip spectrometer offers new functions in all fields of science and industry

3D digital holograms on mobile devices?

Early warning system for strokes and heart attacks using a soft and stretchy ultrasound skin patch

Turning intentions into actions with a new wearable brain-machine interface

A transparent and flexible battery for simultaneous power generation and storage

DGIST Senior Researcher Changsoon Choi’s team developed single-layer graphene based multifunctional transparent devices Expected to be used in various devices such as electronics and skin-attachable devices with power generation and self-charging capability Various use of electronics and skin-attachable devices are expected with the development of transparent battery that can both generate and store power. DGIST

A transparent and flexible battery for simultaneous power generation and storage

Opening up the possibility of commercializing inexpensive electronic devices based on a variety of 2-D materials

Efficient method for making single-atom-thick, wafer-scale materials opens up opportunities in flexible electronics. Since the 2003 discovery of the single-atom-thick carbon material known as graphene, there has been significant interest in other types of 2-D materials as well. These materials could be stacked together like Lego bricks to form a range of devices with different

Opening up the possibility of commercializing inexpensive electronic devices based on a variety of 2-D materials

Is DNA the next big thing in photonics?

Scientists fine-tune organic thin films with an eye toward biomedical devices Using DNA from salmon, researchers in South Korea hope to make better biomedical and other photonic devices based on organic thin films. Often used in cancer treatments and health monitoring, thin films have all the capabilities of silicon-based devices with the possible added advantage

Is DNA the next big thing in photonics?

Printable and rewritable color images on the same piece of paper

A chemical process that allows color images to be printed on specially coated paper and then erased so that different images can be printed on the same paper has been developed by researchers at Rice, Yonsei and Korea universities. The researchers explain the technique in a paper that will be published in the Aug. 4 issue of

Printable and rewritable color images on the same piece of paper

The first demonstration of a self-powered cardiac pacemaker

This technology could facilitate the use of self-powered flexible energy harvesters, not only prolonging the lifetime of cardiac pacemakers but also realizing real-time heart monitoring. As the number of pacemakers implanted each year reaches into the millions worldwide, improving the lifespan of pacemaker batteries has been of great concern for developers and manufacturers. Currently, pacemaker

The first demonstration of a self-powered cardiac pacemaker

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