为解决机器人辅助血管内手术中缺乏触觉反馈的难题，研究人员开发了一种基于铁磁流体（ferrofluid）的触觉引导系统。该系统通过磁场调控铁磁流体黏度变化，模拟血管内器械接触力，实验证实其可提供方向性触觉反馈（感知准确率44%），为提升手术安全性和操作直觉性提供了新思路。

Ferrofluid, the liquid invented by NASA in the 1960s as a rocket fuel, has some strange and wonderful properties. Around a magnet, it pimples into glimmering cones that dance and shrink or grow ...

Watch what happens when we mix ferrofluid with the liquid from a glow stick! Ferrofluid is a liquid that displays unusual properties in the presence of a magnetic field. Watch what happens when we ...

The ferrofluid used was a cheap, commercially available formulation based on mineral oil and magnetite nanoparticles,” says Koser, explaining just how simply their device was built. Chain reactions ...

"Ferrofluid is an example of nanotechnology and, when presented in the right manner, is very successful at creating interest were there was none before," Haines wrote on the Kickstarter campaign.

First off, ferrofluid is expensive, and estimating the right amount for the project is tricky. [Basti] got 20 ml. Next, it stains everything in the way that only suspended nano-particles of rust can.

Invented by a Nasa engineer as a way to pump rocket fuel in a zero-G weightless environment, ferrofluid is created by mixing a magnetic material, like tiny iron filings, with a liquid mixture that ...

Spinning around: magnetic oscillations in a BEC. (Courtesy: S Lepoutre et al / Phys. Rev. Lett.) Collective spin oscillations have been spotted for the first time in an ultracold atomic gas. The ...

A small bottle containing ferrofluid will set you back a mere $19, a glowing alien head is $49, and the rocket-shaped lava lamp starts at $74. A $99 version comes with added ferrofluid.