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Search results for gold nanoparticles

Nanomaterials Jan 9, 2020

Illuminating the world of nanoparticles

Scientists at the Okinawa Institute of Science and Technology Graduate University (OIST) have developed a light-based device that can act as a biosensor, detecting biological substances in materials; for example, harmful ...

Bio & Medicine Jan 7, 2020

Tiny pharmaceuticals in the environment

Fear is a bad counselor. In the comic book series "Asterix," the Gaul chief Vitalstatistix may be afraid that the sky may fall on his head. In the real world, however, risks should be assessed with a clear mind. To ensure ...

Optics & Photonics Dec 17, 2019

Turning light energy into heat to fight disease

An emerging technology involving tiny particles that absorb light and turn it into localized heat sources shows great promise in several fields, including medicine. For example, photothermal therapy, a new type of cancer ...

Bio & Medicine Dec 16, 2019

What happens to gold nanoparticles in cells?

Gold nanoparticles, which are supposed to be stable in biological environments, can be degraded inside cells. This research, conducted by teams from the CNRS, l'Université de Paris, Sorbonne Université, and l'Université ...

Biochemistry Dec 9, 2019

Speedy and precise multicolor imaging of biomolecules now possible

For the first time, researchers can track biological molecules with unprecedented speed and precision thanks to the use of multi-metallic nanoparticles.

Bio & Medicine Nov 25, 2019

Determining topographical radiation dose profiles using gel nanosensors

The routine measurement of radiation doses can be clinically challenging due to limitations with conventional dosimeters used to measure the dose uptake of external ionizing radiation. In a new study, Karthik Pushpavanam ...

Nanophysics Nov 13, 2019

Light at the end of the nanotunnel for future catalysts

Using a new type of nanoreactor, researchers at Chalmers University of Technology, Sweden, have mapped catalytic reactions on individual metallic nanoparticles. Their work could improve chemical processes, and lead to better ...

Bio & Medicine Oct 28, 2019

Gold-DNA nanosunflowers for efficient gene silencing and controlled transformation

Developing an efficient delivery system for enhanced and controlled gene interference-based therapeutics is an existing challenge in molecular biology. The advancing field of nanotechnology can provide an effective, cross-disciplinary ...

Bio & Medicine Oct 16, 2019

Nanomesh drug delivery provides hope against global antibiotic resistance

The fight against global antibiotic resistance has taken a major step forward with scientists discovering a concept for fabricating nanomeshes as an effective drug delivery system for antibiotics.

Nanomaterials Oct 15, 2019

Overlap allows nanoparticles to enhance light-based detection

Rice University scientists have found revealing information where light from a molecule meets light from a nanoparticle.

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