Category Chemistry/Nanotechnology

Self-Assembling Nanomaterial offers pathway to more Efficient, Affordable harnessing of Solar Power

Self-assembling nanomaterial offers pathway to more efficient, affordable harnessing of solar power

In this illustration, DPP and rylene dye molecules come together to create a self-assembled superstructure. Electrons within the structure absorb and become excited by light photons, and then couple with neighboring electrons to share energy and create additional excited electrons that can be harvested to create solar cells. Credit: Andrew Levine

Current methods of harvesting solar charges are expensive and inefficient—with a theoretical efficiency limit of 33%. New nanomaterials developed by researchers at the Advanced Science Research Center (ASRC) at The Graduate Center of The City University of New York (CUNY) could provide a pathway to more efficient and potentially affordable harvesting of solar energy.

The materials, created by scientists with the ASRC’s Nanoscience Initiative...

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‘GO Dough’ makes Graphene easy to Shape and Mold

Highly processable and versatile, GO dough can be readily reshaped by cutting, pinching, molding and carving.
Credit: Jiaxing Huang/Northwestern University

New form of graphene oxide is fun to play with – and solves manufacturing challenges. A Northwestern University team is reshaping the world of graphene – literally. The team has turned graphene oxide (GO) into a soft, moldable and kneadable play dough that can be shaped and reshaped into free-standing, three-dimensional structures.

Called “GO dough,” the product might be fun to play with it, but it’s more than a toy. The malleable material solves several long-standing – and sometimes explosive – problems in the graphene manufacturing industry.

“Currently graphene oxide is stored as dry solids or powders, which are prone to co...

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New 3D Nanoprinting strategy opens door to revolution in Medicine, Robotics

Engineers at the University of Maryland (UMD) have created the first 3D-printed fluid circuit element so tiny that 10 could rest on the width of a human hair. The diode ensures fluids move in only a single direction — a critical feature for products like implantable devices that release therapies directly into the body.
Credit: DOI: 10.1038/s41598-018-36727-z

UMD engineers demonstrate their approach by printing the smallest-known 3D microfluidic circuit element. Engineers at the University of Maryland (UMD) have created the first 3D-printed fluid circuit element so tiny that 10 could rest on the width of a human hair. The diode ensures fluids move in only a single direction – a critical feature for products like implantable devices that release therapies directly into the body.

The...

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Using Bacteria to create a Water Filter that Kills Bacteria

Abstract Image
Photothermally Active Reduced Graphene Oxide/Bacterial Nanocellulose Composites as Biofouling-Resistant Ultrafiltration Membranes

New technology can clean water twice as fast as commercially available ultrafiltration membranes. Engineers have created a bacteria-filtering membrane using graphene oxide and bacterial nanocellulose. It’s highly efficient, long-lasting and environmentally friendly – and could provide clean water for those in need.

More than 1 in 10 people in the world lack basic drinking water access, and by 2025, half of the world’s population will be living in water-stressed areas, which is why access to clean water is one of the National Academy of Engineering’s Grand Challenges. Engineers at Washington University in St...

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