We designed these nanoparticles to be activated by these enzymes.

我设计了这些会被酶激发的纳米颗粒。

We have to sneak our nanoparticle past the tumor defense system.

我它骗过肿瘤的防御系统。

Let's take a closer look at how we can build this nanoparticle.

来仔细看一下我是 如何制造这种纳米粒子的。

Quantum dots are extremely small particles, called nanoparticles.

量子点是极小的颗粒，称为纳米颗粒。

It was a long time ago, it was 40 years ago that you first produced colloidal nanoparticles.

那是很久以前，40 年前，你第一次制造胶体纳米粒子。

" We actually developed nanoparticles, so-called up-conversion nanoparticles, that actually can effectively be activated by this near-infrared light."

“我实际上开发了纳米粒子，所谓的上转换纳米粒子，实际上它可以被这种近红外光有效地激活。”

They injected special nanoparticles into their eyes. These tiny particles let the mice see better in the dark.

他给老鼠的眼睛注射了特殊的纳米粒子。这些小微粒老鼠在夜间看得。

And we can put different drugs into the nanoparticle core.

我还可以在内核中 放入不同种类的药物。

And so what other tools do nanoparticles have?

纳米粒子还有什么功能？

He got help from a Minnesota company that uses a technique of spattering nanoparticles.

他得到了明尼苏达州一家公司的帮助，该公司使用了一种喷溅纳米粒子的技术。

We can follow where those nanoparticles have been uptaken into, for example, human cells.

通过该仪器，我能够了解纳米粒的摄入方向，譬如说人类细胞。

Recent researchTrusted Source suggests that these nanoparticles may also be harmful to coral reefs.

最近的研究可信来源表明，这些纳米粒子也可能对珊瑚礁有害。

First, let's start with the nanoparticle core.

首先，我制造纳米核。

It`s based of these amazing properties of nanoparticles that only react to one specific molecule.

它是基于纳米粒子的神奇特性，它只对一个特定的分子有反应。

The nanoparticles attach themselves to photoreceptors in the animal's retina.

纳米颗粒附着在动物视网膜上的感光细胞上。

One way to tamper with the internal structure of concrete is to use nanoparticles.

使用纳米粒子可以改变混凝土内部结构。

And these are just some of the many tools that nanoparticles can have.

这些还不是纳米粒子的全部作用。

And guess what? Our nanoparticle is considered a foreign object.

很显然，我的纳米粒子 就是一种外来物体。

Well, now a new nanoparticle powder has been developed and it makes fingerprints even easier to detect.

现在，一种新型纳米粒子粉末问世了，它使得指纹的检测变得加容易。

But as those nanoparticles degrade, they release the silver from their metallic core, which may be harmful.

但是随着纳米粒子的不断降解，它会从金属磁芯中释放有害的银离子。