毫微粒的英文：
nanoparticle

Solid lipid nanoparticle is a new drug delivery system of nano-range.
固体脂质纳米粒是一种新型的纳米给药系统。

As the liquid evaporated, the ink became richer in gold, the fluid flowed over the holes, and a single nanoparticle of gold dropped into each one.
随着液体的蒸发，墨水的含金量也就随着增多，而当流体流过模板上的小孔时，一个单一的黄金纳米颗粒就会进入小孔内。