Flies smell through a Gore-Tex system

A research group led by a scientist of the RIKEN Center for Biosystems Dynamics Research (BDR) has gained important insights into the nanopores that allow the fruit fly to detect chemicals in the air, and has identified the ...

Carbon dioxide to methanol conversion

NUS chemists have developed a highly efficient nanostructured catalyst based on zinc and silver that can convert carbon dioxide, an environmental pollutant and greenhouse gas, to methanol for use as chemical feedstock and ...

Polymers join forces to deliver

An affordable, heavy metal- and odor-free method for making hollow polymer nanostructures has been designed by A*STAR researchers. These structures could find use as delivery systems for personal care products, drugs and ...

A tip for future nanoscale sensing

Commercially-available diamond tips used in atomic force microscopy (AFM) could help make quantum nanoscale sensing cost-effective and practical, A*STAR researchers have found.

From foe to friend: Graphene catalyzes the C-C bond formation

Graphene monolayers can be epitaxially grown on many single-crystal metal surfaces under ultra-high vacuum. On one side, these monolayers protect highly reactive metallic surfaces from contaminants, but on the other side, ...

Researchers discover new material—black silver

Researchers from the Singapore University of Design and Technology (SUTD) have engineered a new, inexpensive nanomaterial that has applications ranging from biomolecule detectors to solar energy conversion. The key to the ...

Detecting light in a different dimension

Scientists from the Center for Functional Nanomaterials (CFN)—a U.S. Department of Energy (DOE) Office of Science User Facility at Brookhaven National Laboratory—have dramatically improved the response of graphene to ...

Healing kidneys with nanotechnology

Each year, there are some 13.3 million new cases of acute kidney injury (AKI), a serious affliction. Formerly known as acute renal failure, the ailment produces a rapid buildup of nitrogenous wastes and decreases urine output, ...

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Nanostructure

A nanostructure is an object of intermediate size between molecular and microscopic (micrometer-sized) structures.

In describing nanostructures it is necessary to differentiate between the number of dimensions on the nanoscale. Nanotextured surfaces have one dimension on the nanoscale, i.e., only the thickness of the surface of an object is between 0.1 and 100 nm. Nanotubes have two dimensions on the nanoscale, i.e., the diameter of the tube is between 0.1 and 100 nm; its length could be much greater. Finally, spherical nanoparticles have three dimensions on the nanoscale, i.e., the particle is between 0.1 and 100 nm in each spatial dimension. The terms nanoparticles and ultrafine particles (UFP) often are used synonymously although UFP can reach into the micrometre range.

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