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Cracking eggshell nanostructure

Researchers at McGill University have discovered a unique nanostructure in chicken eggshells that contributes to their strength and fragility. The findings, published in Science Advances, could lead to improved food safety by enabling the selection of genetic traits in laying hens that produce consistently stronger eggs.

SourceMcGill University·JournalScience Advances·DateMar 30, 2018

Simultaneous design and nanomanufacturing speeds up fabrication

Researchers at Northwestern University have developed a new method that combines design and nanomanufacturing to create optimal nanostructured surfaces for solar cells. The technique uses mathematical functions and machine learning to fabricate quasi-random structures, resulting in increased light absorption and improved efficiency.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateAug 4, 2017

Lightweight catalyst for artificial photosynthesis

Scientists at Fuzhou University have created a macroscopic aerogel from carbonitride nanomaterials that catalyzes the water-splitting reaction under visible-light irradiation. The material offers excellent structural and electronic properties, making it suitable for artificial photosynthesis.

SourceWiley·JournalAngewandte Chemie International Edition·DateAug 4, 2017

Nanowire 'inks' enable paper-based printable electronics

Researchers at Duke University have created a new method for printing conductive films using silver nanowire inks, eliminating the need for heat. The resulting printed electronics can be used in various applications such as solar cells, displays, and implantable bio-electronic devices.

SourceDuke University·JournalACS Applied Materials & Interfaces·DateJan 3, 2017

Programmable disorder

Scientists at Caltech have developed a method to combine deterministic and random processes for creating complex nanostructures out of DNA. By controlling the design of individual tiles and their interactions, they can produce emergent features with tunable statistical properties, including loop, maze, and tree structures.

SourceCalifornia Institute of Technology·JournalNature Nanotechnology·DateNov 28, 2016

Nanostructures made of pure gold

Researchers at TU Wien have successfully created nanostructures made of pure gold using an additive direct-write lithography technique. The new method allows for the fabrication of three-dimensional gold structures, which are essential for various applications in electronics and sensor technology.

SourceVienna University of Technology·JournalScientific Reports·DateNov 4, 2016

Low-cost and lightweight

Researchers at PNNL have developed a stronger titanium alloy using a novel nanostructure, with potential applications in lightweight vehicle parts. The alloy achieved a 10-15% increase in strength, making it suitable for high-strength-to-cost ratio and greater fuel economy.

SourceDOE/Pacific Northwest National Laboratory·JournalNature Communications·DateApr 1, 2016

A 'printing press' for nanoparticles

Researchers at McGill University have developed a method to assemble gold nanoparticles using DNA structures, allowing for the creation of novel materials with unique properties. This 'printing press' for nanoparticles has the potential to facilitate use in electronic and medical applications.

SourceMcGill University·JournalNature Chemistry·DateJan 7, 2016

Promising new approach for controlled fabrication of carbon nanostructures

Researchers at INRS develop a new strategy for fabricating atomically controlled carbon nanostructures using molecular self-assembly and chain polymerization. The technique produces network of long-range poly(para-phenylene) (PPP) nanowires on copper surface, displaying quasi one-dimensional dispersion in conductive polymeric nanowires.

A different type of 2-D semiconductor

Researchers successfully grew atomically thin 2D sheets of organic-inorganic hybrid perovskites from solution, exhibiting efficient photoluminescence, color-tunability, and unique structural relaxation. The ultrathin sheets have square-shaped geometry, high quality crystallinity, and large size, facilitating their integration into futu...

Nano-dunes with the ion beam

The researchers used broad ion beams to create nanostructured arrays on a gallium arsenide wafer, resulting in well-defined structures reminiscent of sand dunes. The process involves heating the sample during ion bombardment and compensating for missing atom bonds by forming pairs of gallium atoms.

Dancing droplets launch themselves from thin fibers

The 'dancing droplets' phenomenon allows small droplets to launch themselves from moderately hydrophobic surfaces, enabling efficient removal of accumulated droplets in fibrous webs. This technology has potential applications in water purification and oil refining by reducing clogging and improving efficiency.

SourceDuke University·JournalPhysical Review Letters·DateAug 17, 2015

New design tool for metamaterials

Scientists at Berkeley Lab have developed a new design tool to predict the nonlinear optical properties of metamaterials. This breakthrough enables efficient design and creation of high-performance materials for applications such as coherent Raman sensing, entangled photon generation, and frequency conversion.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Materials·DateFeb 9, 2015

Biomimetic dew harvesters

Researchers have discovered how a desert beetle collects dew on its back, which could lead to improved water yield in man-made dew condensers. The beetle's unique nanostructure allows for near-perfect infrared emissivity, enabling efficient cooling and dew formation.

SourceSpringer·JournalThe European Physical Journal E·DateDec 8, 2014

Van der Waals force re-measured

Scientists at Forschungszentrum Juelich re-measured the van der Waals force for single molecules, revealing a superlinear increase with growing molecular size. The study highlights the importance of van der Waals forces in biomolecules and adhesives, such as geckos' ability to climb smooth walls.

SourceForschungszentrum Juelich·JournalNature Communications·DateNov 26, 2014