这一新材料的稳定性提供了提高能量密度的级别，张伯伦说。

The stability of the new materials suggests a way to increase energy density at the pack level, Chamberlain says.

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小组成员Lorenzo Valdevit说：“当尺寸下降到纳米级别时，事实上，材料强度会增大。”

"Materials actually get stronger as the dimensions are reduced to the nanoscale," said team member Lorenzo Valdevit.

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刷毛和刷柄部分都使用了食用级别的材料注塑而成，使用起来更耐用和更安全。

Bristles and brush handles are made of food grade materials that are more durable and safer to use.

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