Ultrafine particles stem from a variety of natural and human-made sources, including vehicle exhaust.

Ultrafine particles are aerosols less than 0.1 micrometers, or 100 nanometers, in diameter—about one-thousandth the width of a human hair. Due to their tiny size, they can be easily inhaled into ...

Clouds affect Earth’s weather and climate in many ways. New research suggests that the presence of microplastic particles may affect weather and climate by producing clouds in conditions where they ...

The tiny device uses a tightly focused beam of light to capture and manipulate cells. MIT researchers have developed a miniature, chip-based “tractor beam,” like the one that captures the Millennium ...

Wildfires across New Jersey sent smoke billowing across the Hudson River and an eerie yellow-brown haze lingering over New ...

In a new discovery, researchers from Cornell University have found how tiny metal particles, when launched at supersonic ...

In hopes of expanding the treatment options for those patients, MIT researchers have designed tiny particles that can be implanted at a tumor site, where they deliver two types of therapy ...

The discovery that things of subatomic size can behave as waves or particles interchangeably, depending on circumstance, was one of the most shocking and important features of twentieth century ...

Patients with late-stage cancer often have to endure multiple rounds of different types of treatment, which can cause unwanted side effects and may not always help.

By reducing the reflection of ultraviolet light, hollow nanoparticles called brochosomes help to protect leafhoppers from predators.