After a Century of Searching, Scientists find a New Liquid Phase

The colors in this newly discovered phase of liquid crystal shift as researchers apply a small electric field. (Credit: SMRC)

Researchers at the University of Colorado Boulder’s Soft Materials Research Center (SMRC) have discovered an elusive phase of matter, first proposed more than 100 years ago and sought after ever since.

The team describes the discovery of what scientists call a “ferroelectric nematic” phase of liquid crystal in a study published today in the Proceedings of the National Academy of Sciences. The discovery opens a door to a new universe of materials, said co-author Matt Glaser, a professor in the Department of Physics.

Nematic liquid crystals have been a hot topic in materials research since the 1970s...

Read More

Astronomers discover How Long-Lived Peter Pan Discs Evolve

Most stars form in big stellar clusters. This image depicts a stellar cluster called M16 also known as The Eagle Nebula. Credit- T.A.Rector (NRAO/AUI/NSF and NOAO/AURA/NSF) and B.A.Wolpa (NOAO/AURA/NSF).
Astronomers discover How Long-Lived Peter Pan Discs Evolve

New research from scientists at Queen Mary University of London has revealed how long-lived Peter Pan discs form, which could provide new insights into how planets arise.

Planet-forming, or protoplanetary discs are giant discs of gas and dust found circling young stars. The recently discovered Peter Pan discs received their name as like their fictional counterpart they are thought to “never grow up,” living around 5-10 times longer than other typical protoplanetary discs.

Whilst astronomers have been aware of the existence of Peter Pan discs since 2016, questions around how and why these discs live so long and the implications for how planets form, have been left unanswered.

In this study, the scientists used computer ...

Read More

A good Vitamin D status can Protect against Cancer

Fig. 1
Vitamin D signaling. Production of vitamin D3 and its metabolites 25(OH)D3 and 1,25(OH)2D3 (A). VDR (green) binds accessible genomic DNA in complex with a partner protein (RXR or others, blue) (B). VDR’s DNA binding is supported by the pioneer factors PU.1, CEBPA and/or GABPA. The genomic region that can be influenced by 1,25(OH)2D3 (via binding to VDR) is restricted by CTCF proteins defining left and right TAD borders. Schematic representation of a Voronoi tessellation [55] displaying five TAD classes of the most prominently enriched biological processes (C). The most relevant attributes are the number of persistent and transient VDR sites and were chosen for the x and y axis, respectively.

A good vitamin D status is beneficial both in cancer prevention and in the prognosis of sever...

Read More

World’s First Spherical Artificial Eye has 3D Retina

Structure of EC eye
Structure of the Electrochemical Eye (EC-Eye) developed at HKUST

An international team led by scientists at the Hong Kong University of Science and Technology (HKUST) has recently developed the world’s first 3D artificial eye with capabilities better than existing bionic eyes and in some cases, even exceed those of the human eyes, bringing vision to humanoid robots and new hope to patients with visual impairment.

Scientists have spent decades trying to replicate the structure and clarity of a biological eye, but vision provided by existing prosthetic eyes – largely in the form of spectacles attached with external cables, are still in poor resolution with 2D flat image sensors...

Read More