- 牛冉 教授
- 華中科技大學(xué)
- 網(wǎng)址: ranniu.polymer.cn 訪問(wèn)量:399642
- 中科院長(zhǎng)春應(yīng)化所 孫昭艷 研究員課題組
- 華中科技大學(xué)龔江教授課題組
- 中國(guó)聚合物網(wǎng)
- 中國(guó)流變網(wǎng)
- 中國(guó)化學(xué)儀器網(wǎng)
- 化學(xué)化工論壇
- 通信地址:湖北省武漢市洪山區(qū)珞喻路1037號(hào)
- 郵編:430074
- 電話:18154410256
- 傳真:
- Email:[email protected]
關(guān)鍵字:scale-invarient, specific interaction, programmable, magnetic encoding
論文來(lái)源:期刊
具體來(lái)源:Proceedings of the National Academy of Sciences of the United States of America (PNAS)
發(fā)表時(shí)間:2019年
Programmable self-assembly of smart, digital, and structurally complex materials from simple components at size scales from the macro to the nano remains a long-standing goal of material science. Here, we introduce a platform based on magnetic encoding of information to drive programmable self-assembly that works across length scales. Our building blocks consist of panels with different patterns of magnetic dipoles that are capable of specific binding. Because the ratios of the different panel-binding energies are scale-invariant, this approach can, in principle, be applied down to the nanometer scale. Using a centimeter-sized version of these panels, we demonstrate 3 canonical hallmarks of assembly: controlled polymerization of individual building blocks; assembly of 1-dimensional strands made of panels connected by elastic backbones into secondary structures; and hierarchical assembly of 2-dimensional nets into 3-dimensional objects. We envision that magnetic encoding of assembly instructions into primary structures of panels, strands, and nets will lead to the formation of secondary and even tertiary structures that transmit information, act as mechanical elements, or function as machines on scales ranging from the nano to the macro.
全文鏈接:https://www.pnas.org/content/116/49/24402.abstract
