Janus particles

Janus particles are tiny particles that have two different sides with distinct properties, like the fictional character Janus who has two faces. This duality allows them to interact uniquely with their environment—one side might be attracted to water, while the other repels it. Such asymmetry makes Janus particles useful for targeted drug delivery, specialized sensors, or self-assembly into complex structures. Their design enables researchers to control their behavior precisely, opening new possibilities in medicine, materials science, and nanotechnology.