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Search results for gold nanoparticles

General Physics Jul 11, 2024

Physicists discover a way to imprint a previously unseen geometrical form of chirality onto electrons

Have you ever placed the palm of your left hand on the back of your right hand in such a way that all fingers point in the same direction? If you have, then you probably know that your left thumb will not touch its right ...

Analytical Chemistry Jul 9, 2024

Faster charge transfer mechanism could lead to better energy conversion devices

Solar has emerged in recent years as the fastest growing renewable energy source in the United States, spurred in part by great improvements in technology that help turn light from the sun into electricity more efficiently.

Earth Sciences Jul 3, 2024

Treasures beneath the ocean floor? Seawater plays role in gold formation

Understanding how gold forms is crucial for knowing where to find it and how to extract it sustainably. McGill researchers have answered a long-standing question in geology that could lead to new ore discoveries.

Bio & Medicine Jun 27, 2024

Gold nanoparticles kill cancer—but not as thought

Gold particles of the size of billionths of a meter are lethal to cancer cells. This fact has been known for a long time, as has a simple correlation: The smaller the nanoparticles used to fight the cancer cells, the faster ...

Nanomaterials Jun 27, 2024

New method visualizes ligands on gold nanoparticles in liquid

The University of Antwerp and CIC biomaGUNE have come up with a promising method for understanding the role of surface molecules in the formation of nanoparticles. The groundbreaking research, published in Nature Chemistry, ...

Optics & Photonics Jun 26, 2024

Time-compression in electron microscopy: Terahertz light controls and characterizes electrons in space and time

Scientists at the University of Konstanz in Germany have advanced ultrafast electron microscopy to unprecedented time resolution. Reporting in Science Advances, the research team presents a method for the all-optical control, ...

Bio & Medicine Jun 24, 2024

New organoid culture method can verify human toxicity of nanomaterials

The Korea Research Institute of Standards and Science (KRISS) has developed the world's first organoid culture method capable of accurately assessing human toxicity of nanomaterials. Overcoming the limitations of the conventional ...

Analytical Chemistry Jun 17, 2024

Researchers convert alcohols into aldehydes without solvents by using gold-coated milling vessels

A gold-coated milling vessel for ball mills proved to be a real marvel in the research work by Inorganic Chemistry at Ruhr University Bochum, Germany. Without any solvents or environmentally harmful chemicals, the team led ...

Nanophysics Jun 14, 2024

Strong coupling and catenary field enhancement in the hybrid plasmonic metamaterial cavity and TMDC monolayers

Researchers in the field of nanophotonics have spent significant time in recent years investigating fascinating concepts known as polaritons and/or plexcitons. These ideas revolve around the strong coupling of light photons ...

Nanophysics Jun 5, 2024

Gold nanoparticles that selectively emit left- or right-handed light

When chiral gold nanoparticles are irradiated with near-infrared femtosecond pulses, visible emission of luminescence is observed. In a study published in Advanced Optical Materials, this luminescence was found to yield high ...

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