School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
Adv Mater. 2013 Jun 25;25(24):3380-5. doi: 10.1002/adma.201300617. Epub 2013 May 2.
Buckling-induced reversible symmetry breaking and amplification of chirality using macro- and microscale supported cellular structures is described. Guided by extensive theoretical analysis, cellular structures are rationally designed, in which buckling induces a reversible switching between achiral and chiral configurations. Additionally, it is demonstrated that the proposed mechanism can be generalized over a wide range of length scales, geometries, materials, and stimuli.
采用宏观和微观支撑细胞结构实现了屈曲诱导的手性对称破缺和放大的可逆性。在广泛的理论分析指导下,合理设计了细胞结构,其中屈曲诱导手性和非手性结构之间的可逆转换。此外,还证明了所提出的机制可以在广泛的长度尺度、几何形状、材料和刺激条件下推广。