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Sculpted grain boundaries in soft crystals.

ABSTRACT: Engineering the grain boundaries of crystalline materials represents an enduring challenge, particularly in the case of soft materials. Grain boundaries, however, can provide preferential sites for chemical reactions, adsorption processes, nucleation of phase transitions, and mechanical transformations. In this work, "soft heteroepitaxy" is used to exert precise control over the lattice orientation of three-dimensional liquid crystalline soft crystals, thereby granting the ability to sculpt the grain boundaries between them. Since these soft crystals are liquid-like in nature, the heteroepitaxy approach introduced here provides a clear strategy to accurately mold liquid-liquid interfaces in structured liquids with a hitherto unavailable level of precision.

SUBMITTER: Li X

PROVIDER: S-EPMC6884414 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Sculpted grain boundaries in soft crystals.

Li Xiao X Martínez-González José A JA Guzmán Orlando O Ma Xuedan X Park Kangho K Zhou Chun C Kambe Yu Y Jin Hyeong Min HM Dolan James A JA Nealey Paul F PF de Pablo Juan J JJ

Science advances 20191129 11

Engineering the grain boundaries of crystalline materials represents an enduring challenge, particularly in the case of soft materials. Grain boundaries, however, can provide preferential sites for chemical reactions, adsorption processes, nucleation of phase transitions, and mechanical transformations. In this work, "soft heteroepitaxy" is used to exert precise control over the lattice orientation of three-dimensional liquid crystalline soft crystals, thereby granting the ability to sculpt the ...[more]

PMID: 31819903

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