Micelle-directed chiral seeded growth on anisotropic gold nanocrystals

Guillermo González-Rubio; Jesús Mosquera; Vished Kumar; Adrián Pedrazo-Tardajos; Pablo Llombart; Diego M. Solís; Ivan Lobato; Eva G. Noya; Andrés Guerrero-Martínez; José M. Taboada; Fernando Obelleiro; Luis G. MacDowell; Sara Bals; Luis M. Liz-Marzán

doi:10.1126/science.aba0980

Micelle-directed chiral seeded growth on anisotropic gold nanocrystals

Guillermo González-Rubio, Jesús Mosquera, Vished Kumar, Adrián Pedrazo-Tardajos, Pablo Llombart, Diego M. Solís, Ivan Lobato, Eva G. Noya, Andrés Guerrero-Martínez, José M. Taboada, Fernando Obelleiro, Luis G. MacDowell, Sara Bals, Luis M. Liz-Marzán

Pure And Applied Chemistry

Research output: Contribution to journal › Article › peer-review

129 Citations (Scopus)

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Abstract

Surfactant-assisted seeded growth of metal nanoparticles (NPs) can be engineered to produce anisotropic gold nanocrystals with high chiroptical activity through the templating effect of chiral micelles formed in the presence of dissymmetric cosurfactants. Mixed micelles adsorb on gold nanorods, forming quasihelical patterns that direct seeded growth into NPs with pronounced morphological and optical handedness. Sharp chiral wrinkles lead to chiral plasmon modes with high dissymmetry factors (~0.20). Through variation of the dimensions of chiral wrinkles, the chiroptical properties can be tuned within the visible and near-infrared electromagnetic spectrum. The micelle-directed mechanism allows extension to other systems, such as the seeded growth of chiral platinum shells on gold nanorods. This approach provides a reproducible, simple, and scalable method toward the fabrication of NPs with high chiral optical activity.

Original language	English
Pages (from-to)	1472-1477
Number of pages	6
Journal	Science (New York, N.Y.)
Volume	368
Issue number	6498
DOIs	https://doi.org/10.1126/science.aba0980
Publication status	Published - 26 Jun 2020

Keywords

metal nanoparticles
seeded growth
chiral micelles

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10.1126/science.aba0980

Gonzales-Rubio-etal-Science-2020-Micelle-directed-chiral-seeded-growth-on-anisotropic-goldAccepted author manuscript, 828 KB

https://zenodo.org/record/3923469#.X2Cl_ovta60.

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González-Rubio, G., Mosquera, J., Kumar, V., Pedrazo-Tardajos, A., Llombart, P., Solís, D. M., Lobato, I., Noya, E. G., Guerrero-Martínez, A., Taboada, J. M., Obelleiro, F., MacDowell, L. G., Bals, S., & Liz-Marzán, L. M. (2020). Micelle-directed chiral seeded growth on anisotropic gold nanocrystals. Science (New York, N.Y.), 368(6498), 1472-1477. https://doi.org/10.1126/science.aba0980

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title = "Micelle-directed chiral seeded growth on anisotropic gold nanocrystals",

abstract = "Surfactant-assisted seeded growth of metal nanoparticles (NPs) can be engineered to produce anisotropic gold nanocrystals with high chiroptical activity through the templating effect of chiral micelles formed in the presence of dissymmetric cosurfactants. Mixed micelles adsorb on gold nanorods, forming quasihelical patterns that direct seeded growth into NPs with pronounced morphological and optical handedness. Sharp chiral wrinkles lead to chiral plasmon modes with high dissymmetry factors (~0.20). Through variation of the dimensions of chiral wrinkles, the chiroptical properties can be tuned within the visible and near-infrared electromagnetic spectrum. The micelle-directed mechanism allows extension to other systems, such as the seeded growth of chiral platinum shells on gold nanorods. This approach provides a reproducible, simple, and scalable method toward the fabrication of NPs with high chiral optical activity.",

keywords = "metal nanoparticles, seeded growth, chiral micelles",

author = "Guillermo Gonz{\'a}lez-Rubio and Jes{\'u}s Mosquera and Vished Kumar and Adri{\'a}n Pedrazo-Tardajos and Pablo Llombart and Sol{\'i}s, {Diego M.} and Ivan Lobato and Noya, {Eva G.} and Andr{\'e}s Guerrero-Mart{\'i}nez and Taboada, {Jos{\'e} M.} and Fernando Obelleiro and MacDowell, {Luis G.} and Sara Bals and Liz-Marz{\'a}n, {Luis M.}",

year = "2020",

month = jun,

day = "26",

doi = "10.1126/science.aba0980",

language = "English",

volume = "368",

pages = "1472--1477",

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González-Rubio, G, Mosquera, J, Kumar, V, Pedrazo-Tardajos, A, Llombart, P, Solís, DM, Lobato, I, Noya, EG, Guerrero-Martínez, A, Taboada, JM, Obelleiro, F, MacDowell, LG, Bals, S & Liz-Marzán, LM 2020, 'Micelle-directed chiral seeded growth on anisotropic gold nanocrystals', Science (New York, N.Y.), vol. 368, no. 6498, pp. 1472-1477. https://doi.org/10.1126/science.aba0980

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T1 - Micelle-directed chiral seeded growth on anisotropic gold nanocrystals

AU - González-Rubio, Guillermo

AU - Mosquera, Jesús

AU - Kumar, Vished

AU - Pedrazo-Tardajos, Adrián

AU - Llombart, Pablo

AU - Solís, Diego M.

AU - Lobato, Ivan

AU - Noya, Eva G.

AU - Guerrero-Martínez, Andrés

AU - Taboada, José M.

AU - Obelleiro, Fernando

AU - MacDowell, Luis G.

AU - Bals, Sara

AU - Liz-Marzán, Luis M.

PY - 2020/6/26

Y1 - 2020/6/26

N2 - Surfactant-assisted seeded growth of metal nanoparticles (NPs) can be engineered to produce anisotropic gold nanocrystals with high chiroptical activity through the templating effect of chiral micelles formed in the presence of dissymmetric cosurfactants. Mixed micelles adsorb on gold nanorods, forming quasihelical patterns that direct seeded growth into NPs with pronounced morphological and optical handedness. Sharp chiral wrinkles lead to chiral plasmon modes with high dissymmetry factors (~0.20). Through variation of the dimensions of chiral wrinkles, the chiroptical properties can be tuned within the visible and near-infrared electromagnetic spectrum. The micelle-directed mechanism allows extension to other systems, such as the seeded growth of chiral platinum shells on gold nanorods. This approach provides a reproducible, simple, and scalable method toward the fabrication of NPs with high chiral optical activity.

AB - Surfactant-assisted seeded growth of metal nanoparticles (NPs) can be engineered to produce anisotropic gold nanocrystals with high chiroptical activity through the templating effect of chiral micelles formed in the presence of dissymmetric cosurfactants. Mixed micelles adsorb on gold nanorods, forming quasihelical patterns that direct seeded growth into NPs with pronounced morphological and optical handedness. Sharp chiral wrinkles lead to chiral plasmon modes with high dissymmetry factors (~0.20). Through variation of the dimensions of chiral wrinkles, the chiroptical properties can be tuned within the visible and near-infrared electromagnetic spectrum. The micelle-directed mechanism allows extension to other systems, such as the seeded growth of chiral platinum shells on gold nanorods. This approach provides a reproducible, simple, and scalable method toward the fabrication of NPs with high chiral optical activity.

KW - metal nanoparticles

KW - seeded growth

KW - chiral micelles

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VL - 368

SP - 1472

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JO - Science

JF - Science

IS - 6498

ER -

Micelle-directed chiral seeded growth on anisotropic gold nanocrystals

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