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Nanophysics Oct 9, 2018

Harvesting solar fuels through a bacterium's unusual appetite for gold

A bacterium named Moorella thermoacetica won't work for free. But UC Berkeley researchers have figured out it has an appetite for gold. And in exchange for this special treat, the bacterium has revealed a more efficient path ...

Nanomaterials Sep 10, 2018

Photoelectrode that can harvest 85 percent of visible light

Scientists have developed a photoelectrode that can harvest 85 percent of visible light in a 30 nanometers-thin semiconductor layer between gold layers, converting light energy 11 times more efficiently than previous methods.

Materials Science Sep 10, 2018

Researchers develop a solid material with mobile particles that react to the environment

Inside most materials, little is moving. But a new "active nanocomposite" is teeming with motion: small particles connect or separate, thus changing the color of the entire material. It was made by scientists of the Leibniz ...

Nanomaterials Sep 7, 2018

Nanoparticles form supercrystals under pressure

Self-assembly and crystallisation of nanoparticles (NPs) is generally a complex process, based on the evaporation or precipitation of NP-building blocks. Obtaining high-quality supercrystals is slow, dependent on forming ...

Nanomaterials Sep 6, 2018

Why size matters for gold as a catalyst

Gold is the noblest metal—the most resistant to oxidation. However, nano-size gold has a unique ability to perform as a catalyst, even at low temperatures. The underlying mechanism for this size-dependent change in properties ...

Nanophysics Sep 5, 2018

Probing the limits of plasmonic enhancement using a two-dimensional atomic crystal probe

A research group led by Shunping Zhang and Hongxing Xu at Wuhan University, China, has developed a quantitative SERS technique to probe the maximum plasmonic fields before effects such as electron tunneling become dominant. ...

Analytical Chemistry Sep 3, 2018

Color-changing sensor detects signs of eye damage in tears

A new point-of-care rapid-sensing device can detect a key marker of eye injury in minutes – a time frame crucial to treating eye trauma.

Nanomaterials Aug 30, 2018

Researchers 3-D print colloidal crystals

MIT engineers have united the principles of self-assembly and 3-D printing using a new technique, which they highlight today in the journal Advanced Materials.

Bio & Medicine Aug 28, 2018

A novel nanoactuator system has been developed

Researchers at University of Jyväskylä (Finland) and University of Tampere (Finland) together with BioNavis Ltd (Finland) have developed a novel nanoactuator system, where conformation of biomolecule can be tuned by electric ...

Bio & Medicine Aug 22, 2018

Reimagining MRI contrast: Iron outperforms gadolinium

Rice University nanoscientists have demonstrated a method for loading iron inside nanoparticles to create MRI contrast agents that outperform gadolinium chelates, the mainstay contrast agent that is facing increased scrutiny ...

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