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In article number 1804593, Zhaoxin Geng, Hong Liu, and co‐workers introduce a cell lysis method in a surface acoustic wave (SAW) microchip. When a biofluid droplet containing cells and microparticles is dropped on the working microchip, the cell membrane function is disrupted by the SAW. The intracellular contents are released after cell lysis, which can be used in disease diagnosis and stem cell...
High‐pressure resistant and multidirectional compressible materials enable various applications but are often hindered by structure‐derived collapse and weak elasticity. Here, a super‐robust graphene foam with ladder shape microstructure capable of withstanding high pressure is presented. The multioriented ladder arrays architecture of the foam, consisting of thousands of identically sized square...
In conventional foams, electrical properties often play a secondary role. However, this scenario becomes different for 3D graphene foams (GrFs). In fact, one of the motivations for synthesizing 3D GrFs is to inherit the remarkable electrical properties of individual graphene sheets. Despite immense experimental efforts to study and improve the electrical properties of 3D GrFs, lack of theoretical...
Conventional methods to induce strain in 2D materials can hardly catch up with the sharp increase in requirements to design specific strain forms, such as the pseudomagnetic field proposed in graphene, funnel effect of excitons in MoS2, and also the inverse funnel effect reported in black phosphorus. Therefore, a long‐standing challenge in 2D materials strain engineering is to find a feasible scheme...
In article number 1703151, Ling‐Hai Xie, Li‐Tao Sun, Wei Huang, and co‐workers propose a general strategy for programmable 2D organic nanosheets formation based on the synergistically molecular attractor‐repulsor theory (SMART). As a typical attractor‐repulsor model molecule, TPA‐PF is made up of a supramolecular segment TPA and a bulky group PF. The synergetic effect between them leads to an interdigital...
Rational molecular design for the organic nanocrystal morphology still remains a challenge due to the structural diversity and complicated weak intermolecular interactions. In this work, a typical attractor–repulsor molecule N,N‐diphenyl‐4‐(9‐phenyl‐fluoren‐9‐yl) phenylamine (TPA‐PF) is designed to explore a general assembly strategy for 2D nanocrystals. Via an interdigital lipid bilayer‐like (ILB)...
Due to lack of the third dimension in 3D bulk materials, the crack tip in graphene locates on several atoms implying that its fracture behavior can be closely associated with its lattice structure, i.e., the bond length and angle. As the bond length reflects the discrete nature of the atomic structure, theoretical discussion is focused on the concomitant size effect at the nanoscale with few or no...
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