Plasmonic Metamaterial Gels with Spatially Patterned Orientational Order via 3D Printing.

ABSTRACT: Optical properties can be programmed on mesoscopic scales by patterning host materials while ordering their nanoparticle inclusions. While liquid crystals are often used to define the ordering of nanoparticles dispersed within them, this approach is typically limited to liquid crystals confined in classic geometries. In this work, the orientational order that liquid crystalline colloidal hosts impose on anisotropic nanoparticle inclusions is combined with an additive manufacturing method that enables engineered, macroscopic three-dimensional (3D) patterns of co-aligned gold nanorods and cellulose nanocrystals. These gels exhibit polarization-dependent plasmonic properties that emerge from the unique interaction between the host medium's anisotropic optical properties defined by orientation

SUBMITTER: Hess AJ 

PROVIDER: S-EPMC6906772 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature