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Szustakiewicz P, Kowalska N, Grzelak D, Narushima T, Góra M, Bagiński M, Pociecha D, Okamoto H, Liz-Marzán LM, Lewandowski W. Supramolecular Chirality Synchronization in Thin Films of Plasmonic Nanocomposites. ACS Nano 2020; 14:12918-12928. [PMID: 32886482 PMCID: PMC7596782 DOI: 10.1021/acsnano.0c03964] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Mirror symmetry breaking in materials is a fascinating phenomenon that has practical implications for various optoelectronic technologies. Chiral plasmonic materials are particularly appealing due to their strong and specific interactions with light. In this work we broaden the portfolio of available strategies toward the preparation of chiral plasmonic assemblies, by applying the principles of chirality synchronization-a phenomenon known for small molecules, which results in the formation of chiral domains from transiently chiral molecules. We report the controlled cocrystallization of 23 nm gold nanoparticles and liquid crystal molecules yielding domains made of highly ordered, helical nanofibers, preferentially twisted to the right or to the left within each domain. We confirmed that such micrometer sized domains exhibit strong, far-field circular dichroism (CD) signals, even though the bulk material is racemic. We further highlight the potential of the proposed approach to realize chiral plasmonic thin films by using a mechanical chirality discrimination method. Toward this end, we developed a rapid CD imaging technique based on the use of polarized light optical microscopy (POM), which enabled probing the CD signal with micrometer-scale resolution, despite of linear dichroism and birefringence in the sample. The developed methodology allows us to extend intrinsically local effects of chiral synchronization to the macroscopic scale, thereby broadening the available tools for chirality manipulation in chiral plasmonic systems.
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Affiliation(s)
- Piotr Szustakiewicz
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Natalia Kowalska
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Dorota Grzelak
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Tetsuya Narushima
- Institute
for Molecular Science (IMS) and The Graduate University for Advanced
Studies (SOKENDAI), 38
Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Monika Góra
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Maciej Bagiński
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Damian Pociecha
- Faculty
of Chemistry, University of Warsaw, 101 Żwirki i Wigury, 02-089 Warsaw, Poland
| | - Hiromi Okamoto
- Institute
for Molecular Science (IMS) and The Graduate University for Advanced
Studies (SOKENDAI), 38
Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research and Technology
Alliance (BRTA), Paseo
de Miramón 182, Donostia-San Sebastián 20014, Spain
- Ikerbasque,
Basque Foundation for Science, 48013 Bilbao, Spain
- Centro
de Investigación en Biomédica Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 182, Donostia-San Sebastián 20014, Spain
| | - Wiktor Lewandowski
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
- (W.L.)
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