A mechanical metamaterial made from a DNA hydrogel | |
Liwei Chen(陈立桅)![]() | |
刊名 | Nature Nanotechnology
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2012-12 | |
卷号 | 7期号:12页码:816-820 |
通讯作者 | Dan Luo* |
英文摘要 | Metamaterials are artificial substances that are structurally engineered to have properties not typically found in nature. To date, almost all metamaterials have been made from inorganic materials such as silicon and copper1, 2, which have unusual electromagnetic or acoustic properties1, 2, 3, 4, 5 that allow them to be used, for example, as invisible cloaks6, 7, 8, 9, superlenses10, 11, 12 or super absorbers for sound13. Here, we show that metamaterials with unusual mechanical properties can be prepared using DNA as a building block. We used a polymerase enzyme to elongate DNA chains and weave them non-covalently into a hydrogel. The resulting material, which we term a meta-hydrogel, has liquid-like properties when taken out of water and solid-like properties when in water. Moreover, upon the addition of water, and after complete deformation, the hydrogel can be made to return to its original shape. The meta-hydrogel has a hierarchical internal structure and, as an example of its potential applications, we use it to create an electric circuit that uses water as a switch. |
收录类别 | SCI |
WOS记录号 | WOS:000312003700017 |
公开日期 | 2013-01-25 |
内容类型 | 期刊论文 |
源URL | [http://58.210.77.100/handle/332007/1111] ![]() |
专题 | 苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_陈立桅团队 |
推荐引用方式 GB/T 7714 | Liwei Chen. A mechanical metamaterial made from a DNA hydrogel[J]. Nature Nanotechnology,2012,7(12):816-820. |
APA | Liwei Chen.(2012).A mechanical metamaterial made from a DNA hydrogel.Nature Nanotechnology,7(12),816-820. |
MLA | Liwei Chen."A mechanical metamaterial made from a DNA hydrogel".Nature Nanotechnology 7.12(2012):816-820. |
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