Sensing the nanoscale with visible light

A general rule in optics is that light is insensitive to features which are much smaller than the optical wavelength. However, a new experiment shows that even features that are more than 100 times smaller than the wavelength can still be sensed by light.

New diode features optically controlled capacitance

Researchers have developed a new optically tunable capacitor with embedded metal nanoparticles, creating a metal-insulator-semiconductor diode that is tunable by illumination.

Researchers propose a new way of performing in vitro tests on nanoparticles

Researchers propose a new way of performing in vitro tests on nanoparticles that could enhance a correlation to in vivo results. This involves reproducing in the lab the dynamic and fluidic variations that these particles experience in the human body.

A novel molybdenum-coated catalyst for efficient hydrogen production

A novel molybdenum-coated catalyst that can efficiently split water in acidic electrolytes could help with efficient production of hydrogen.

Dual-action cancer nanomedicine therapy

Scientists have fabricated antibody-coated porous silicon nanoparticles that can actively target cells through binding to specific cell-surface receptors. These nanoparticles were demonstrated to selectively deliver multiple therapeutics to human B cells in vitro.

Advanced quantum dots shed bright light on biological processes

Researchers have created short wave infrared quantum dots to image working organs, take metabolic measurements, and track microvascular blood flow in normal brain and brain tumors.