Optical dyes can be used to control color and light in applications ranging from laser welding to production of sunglasses and plasma TVs. The dyes used for this purpose are often expensive; others are cheap but apt to decompose when exposed to heat. A better set of options - optical dyes that are both economical and stable - is about to hit the market.
Researchers have developed a novel method for improving silicon-based sensors used to detect biochemicals and other molecules in liquids. The simplified approach produces micro-scale optical detection devices that cost less to make than other designs, and provide a six-fold increase in sensitivity to target molecules.
Green tea has long been known for its anti-oxidant, anti-cancer, anti-aging and anti-microbial properties. A group of researchers has taken the health benefits of green tea to the next level by using one of its ingredients to develop a drug delivery system, which kills cancer cells more efficiently.
Nanoparticles have the potential to revolutionize the medical industry, but they must possess a few critical properties. First, they need to target a specific region, so that they do not scatter throughout the body. They also require some sort of sensing method, so that doctors and researchers can track the particles. Finally, they need to perform their function at the right moment, ideally in response to a stimulus. Scientists are trying to develop new particles with unprecedented properties that still meet these requirements.
Nanoparticles can emit light into ultra-thin glass fibres. Physicists have now managed to select the direction of the light using an unusual kind of coupling between spin and the direction of propagation.
Physicists have developed a novel microscope that allows them to record slow-motion movies of tiny nanostructures with groundbreaking time resolution - faster even than a single oscillation cycle of light. With their new microscope they have directly imaged the super-fast motion of electrons.
Researchers have demonstrated a novel automated fabrication process consisting of a three-step sol-gel extrusion, structure freezing and drying, and mechanical drawing process which results in production of highly aligned polymer films.
Fullerenes seemed to many an excellent candidate for nano-bearings. Unfortunately, the results so far have been conflicting, calling for further studies. Through a series of computer simulations, scientists uncovered the reason for the experimental discrepancies and shed light on the true potential of this material.