Category Chemistry/Nanotechnology

Record Solar Hydrogen production with concentrated Sunlight

Figure 2

Illustration of the integrated PEC device.

Researchers have created a smart device capable of producing large amounts of clean hydrogen. By concentrating sunlight, their device uses a smaller amount of the rare, costly materials that are required to produce hydrogen, yet it still maintains a high solar-to-fuel efficiency. Their research has been taken to the next scale with a pilot facility installed on the EPFL campus.

Scientists at EPFL’s Laboratory of Renewable Energy Science and Engineering (LRESE) came up with the idea of concentrating solar irradiation to produce a larger amount of hydrogen over a given area at a lower cost...

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Nanoparticles take a fantastic, Magnetic Voyage


MIT engineers have designed a magnetic microrobot that can help push drug-delivery particles into tumor tissue (left). They also employed swarms of naturally magnetic bacteria to achieve the same effect (right).
Credit: Image courtesy of the researchers.

Tiny robots powered by magnetic fields could help drug-delivery nanoparticles reach their disease targets. MIT Engineers have designed tiny robots that can help drug-delivery nanoparticles push their way out of the bloodstream and into a tumor or another disease site. The magnetic microrobots could help to overcome one of the biggest obstacles to delivering drugs with nanoparticles: getting them to exit blood vessels and accumulate in the right place.

Like crafts in “Fantastic Voyage” – a 1960s science fiction film in which a submarine...

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Bridge over coupled waters: Scientists 3D-print all-liquid ‘Lab on a Chip’

To make the 3D-printable fluidic device, Berkeley Lab researchers designed a specially patterned glass substrate. When two liquids – one containing nanoscale clay particles, another containing polymer particles – are printed onto the substrate, they come together at the interface of the two liquids and within milliseconds form a very thin channel or tube about 1 millimeter in diameter.
Credit: Berkeley Lab

Researchers at DOE’s Lawrence Berkeley National Laboratory (Berkeley Lab) have 3D-printed an all-liquid device that, with the click of a button, can be repeatedly reconfigured on demand to serve a wide range of applications – from making battery materials to screening drug candidates.

“What we demonstrated is remarkable...

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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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