Category Chemistry/Nanotechnology

Artificial Mother-of-Pearl created using Bacteria

This abalone shell is a natural form of nacre — also known as mother-of-pearl — an exceptionally tough material found in shells and pearls. Rochester biologists have developed an innovative method for creating nacre in the lab — and maybe on the moon.
Credit: University of Rochester photo / J. Adam Fenster

A biologist invented an inexpensive and environmentally friendly method for making artificial nacre using an innovative component: bacteria. The artificial nacre is made of biologically produced materials and has the toughness of natural nacre, while also being stiff and, surprisingly, bendable. The method used to create the novel material could lead to new applications in medicine, engineering – and even constructing buildings on the moon.

The impressive mechanical properties of...

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Quantum Gas turns Supersolid

Several tens of thousands of particles spontaneously organize in a self-determined crystalline structure while sharing the same macroscopic wavefunction — hallmarks of supersolidity.
Credit: Uni Innsbruck

Researchers report on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these properties are unprecedentedly long-lived. This sets the stage for future investigations into the nature of this exotic phase of matter.

Supersolidity is a paradoxical state where the matter is both crystallized and superfluid. Predicted 50 years ago, such a counter-intuitive phase, featuring rather antithetic properties, has been long searched in superfluid helium...

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Researchers use 3D Printer to Print Glass


Researchers demonstrated 3D printing of chalcogenide glass, which can be used to make optical components that operate at mid-infrared wavelengths. This 3D printed glass sample is 14 millimeters long.
Credit: Steeve Morency, Université Laval

3D printing of chalcogenide glass could enable low-cost manufacturing of complex optical components for telecom and sensing applications. For the first time, researchers have successfully 3D printed chalcogenide glass, a unique material used to make optical components that operate at mid-infrared wavelengths. The ability to 3D print this glass could make it possible to manufacture complex glass components and optical fibers for new types of low-cost sensors, telecommunications components and biomedical devices.

In The Optical Society (OSA) journal ...

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Need more Energy Storage? Just hit ‘Print’

Drexel University and Trinity College researchers have developed a conductive ink that can be used to inkjet print energy storage devices.
Credit: Drexel University

Researchers produce conductive MXene ink to print micro-supercapacitors. Researchers from Drexel University and Trinity College in Ireland, have created ink for an inkjet printer from a highly conductive type of 2D material called MXene. Recent findings, published in Nature Communications, suggest that the ink can be used to print flexible energy storage components, such as supercapacitors, in any size or shape.

Conductive inks have been around for nearly a decade and they represent a multi-hundred million-dollar market that is expected to grow rapidly into the next decade...

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