Fast-charging, long-running, Bendy Energy Storage Breakthrough

bendy supercapacitor
Tuning the interlayer spacing of graphene laminate films for efficient pore utilization towards compact capacitive energy storageNature Energy, 2020; DOI: 10.1038/s41560-020-0560-6

A new bendable supercapacitor made from graphene, which charges quickly and safely stores a record-high level of energy for use over a long period, has been developed. While at the proof-of-concept stage, it shows enormous potential as a portable power supply in several practical applications including electric vehicles, phones and wearable technology.

The discovery, published today in Nature Energy, overcomes the issue faced by high-powered, fast-charging supercapacitors — that they usually cannot hold a large amount of energy in a small space.

First author of the study, Dr Zhuangnan Li (UCL Chemi...

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ESO Telescope sees surface of Dim Betelgeuse

Betelgeuse before and after dimming
This comparison image shows the star Betelgeuse before and after its unprecedented dimming. The observations, taken with the SPHERE instrument on ESO’s Very Large Telescope in January and December 2019, show how much the star has faded and how its apparent shape has changed.
Credit:ESO/M. Montargès et al.

Using ESO’s Very Large Telescope (VLT), astronomers have captured the unprecedented dimming of Betelgeuse, a red supergiant star in the constellation of Orion. The stunning new images of the star’s surface show not only the fading red supergiant but also how its apparent shape is changing.

Betelgeuse has been a beacon in the night sky for stellar observers but it began to dim late last year...

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Computer Simulations Visualize how DNA converts Cells into Stem Cells

The pioneer transcription factor Oct4 (blue) binds to the nucleosome (a complex of proteins (green) and the DNA (orange) wrapped around these proteins). Credit: Jan Huertas and Vlad Cojocaru, ©MPI Münster, ©Hubrecht Institute.

Researchers of the Hubrecht Institute (KNAW — The Netherlands) and the Max Planck Institute in Münster (Germany) have revealed how an essential protein helps to activate genomic DNA during the conversion of regular adult human cells into stem cells. Their findings are published in the Biophysical Journal.

Signalling in the cell to start or stop reading DNA happens through proteins called transcription factors. Identity changes happen naturally during development as cells transition from an undesignated cell to a specific cell type...

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New Green Technology generates

The current Air-gen device can power small devices. Photos courtesy: UMass Amherst/Yao and Lovley labs.
The current Air-gen device can power small devices. Photos courtesy: UMass Amherst/Yao and Lovley labs.

Renewable device could help mitigate climate change, power medical devices. Scientists at the University of Massachusetts Amherst have developed a device that uses a natural protein to create electricity from moisture in the air, a new technology they say could have significant implications for the future of renewable energy, climate change and in the future of medicine.

As reported today in Nature, the laboratories of electrical engineer Jun Yao and microbiologist Derek Lovley at UMass Amherst have created a device they call an “Air-gen.” or air-powered generator, with electrically conductive protein nanowires produced by the microbe Geobacter...

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