Gold Nanohelices for Chiral Plasmonic Films by Templated Electroless Plating

Chiu, Po-Ting; Yang, Chih-Ying; Xie, Zhi-Hong; Chang, Ming-Yi; Hung, Yu-Chueh; Ho, Rong‐Ming

doi:10.1002/adom.202002133

Cited by 7 publications

(13 citation statements)

References 36 publications

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“…1b). Interestingly, nanoscale chirality can also be realized from directed self-assembly of achiral functional nanoparticles using various chiral soft templates such as DNA [22][23][24][25] , peptide and protein 26,27 , liquid crystal (LC) 1,2,28,29 , chiral polymer [30][31][32] , and organogelators [33][34][35][36][37] (Fig. 1c).…”

Section: Introductionmentioning

confidence: 99%

Liquid crystal-templated chiral nanomaterials: from chiral plasmonics to circularly polarized luminescence

et al. 2022

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Chiral nanomaterials with intrinsic chirality or spatial asymmetry at the nanoscale are currently in the limelight of both fundamental research and diverse important technological applications due to their unprecedented physicochemical characteristics such as intense light-matter interactions, enhanced circular dichroism, and strong circularly polarized luminescence. Herein, we provide a comprehensive overview of the state-of-the-art advances in liquid crystal-templated chiral nanomaterials. The chiroptical properties of chiral nanomaterials are touched, and their fundamental design principles and bottom-up synthesis strategies are discussed. Different chiral functional nanomaterials based on liquid-crystalline soft templates, including chiral plasmonic nanomaterials and chiral luminescent nanomaterials, are systematically introduced, and their underlying mechanisms, properties, and potential applications are emphasized. This review concludes with a perspective on the emerging applications, challenges, and future opportunities of such fascinating chiral nanomaterials. This review can not only deepen our understanding of the fundamentals of soft-matter chirality, but also shine light on the development of advanced chiral functional nanomaterials toward their versatile applications in optics, biology, catalysis, electronics, and beyond.

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Section: Introductionmentioning

confidence: 99%

Liquid crystal-templated chiral nanomaterials: from chiral plasmonics to circularly polarized luminescence

et al. 2022

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“…Most biomolecules such as DNA, RNA, and protein that constitute living organisms feature chirality, but weak chiroptical properties limited in the ultraviolet (UV) region hinder their applicability. The chirality can be transferred to inorganic nanostructures by incorporating chiral biomolecules , or mimicking the self-assembly of biomolecules using synthetic macromolecules. , Unlike natural chiral biomolecules, chiral inorganic nanostructures have been considered versatile candidates in various applications owing to their great robustness in harsh conditions, high polarizability, and strong chiroptical response. , …”

Section: Introductionmentioning

confidence: 99%

Block Copolymer Enabled Synthesis and Assembly of Chiral Metal Oxide Nanoparticle

Kim

Lee

et al. 2023

ACS Nano

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Chiral metal oxide nanostructures have received tremendous attention in nanotechnological applications owing to their intriguing chiroptical and magnetic properties. Current synthetic methods mostly rely on the use of amino acids or peptides as chiral inducers. Here, we report a general approach to fabricate chiral metal oxide nanostructures with tunable magneto-chiral effects, using block copolymer (BCP) inverse micelle and R/S-mandelic acid (MA). Diverse chiral metal oxide nanostructures are prepared by the selective incorporation of precursors within micellar cores followed by the oxidation process, exhibiting intense chiroptical properties with a g-factor up to 7.0 × 10–3 in the visible–NIR range for the Cr2O3 nanoparticle multilayer. The BCP inverse micelle is found to inhibit the racemization of MA, allowing MA to act as a chiral dopant that imparts chirality to nanostructures via hierarchical chirality transfer. Notably, for paramagnetic nanostructures, magneto-chiroptical modulation is realized by regulating the direction of the external magnetic field. This BCP-driven approach can be extended to the mass production of chiral nanostructures with tunable architectures and optical activities, which may provide insights into the development of chiroptical functional materials.

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“…By taking advantage of chiral block copolymer self-assembly, similar methodologies can also be applied to fabricate chiral metamaterials. 28 Nanohybrids or nanocomposites with chiral sense were fabricated to demonstrate the possibility of the fabrication of chiroptic devices such as chiral plasmonics, 29−33 beam splitters, 34 and negative refraction 35,36 in the near future.…”

Section: Introductionmentioning

confidence: 99%

“…The DG-structured SiO 2 gives large plastic deformation with high transmission of light in the visible to near-IR region, overcoming the brittle character of ceramic materials and retaining the low reflective character of SiO 2 . By taking advantage of chiral block copolymer self-assembly, similar methodologies can also be applied to fabricate chiral metamaterials . Nanohybrids or nanocomposites with chiral sense were fabricated to demonstrate the possibility of the fabrication of chiroptic devices such as chiral plasmonics, − beam splitters, and negative refraction , in the near future.…”

Section: Introductionmentioning

confidence: 99%