Publikation:

High-Throughput Morphological Chirality Quantification of Twisted and Wrinkled Gold Nanorods

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2024

Autor:innen

Vlasov, Evgenii
Heyvaert, Wouter
Van Gordon, Kyle
Girod, Robin
Verbeeck, Johan
Liz-Marzán, Luis M.
Bals, Sara

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European Union (EU): 815128

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ACS Nano. ACS Publications. 2024, 18(18), S. 12010-12019. ISSN 1936-0851. eISSN 1936-086X. Verfügbar unter: doi: 10.1021/acsnano.4c02757

Zusammenfassung

Chirality in gold nanostructures offers an exciting opportunity to tune their differential optical response to left- and right-handed circularly polarized light, as well as their interactions with biomolecules and living matter. However, tuning and understanding such interactions demands quantification of the structural features that are responsible for the chiral behavior. Electron tomography (ET) enables structural characterization at the single-particle level and has been used to quantify the helicity of complex chiral nanorods. However, the technique is time-consuming and consequently lacks statistical value. To address this issue, we introduce herein a high-throughput methodology that combines images acquired by secondary electron-based electron beam-induced current (SEEBIC) with quantitative image analysis. As a result, the geometric chirality of hundreds of nanoparticles can be quantified in less than 1 h. When combining the drastic gain in data collection efficiency of SEEBIC with a limited number of ET data sets, a better understanding of how the chiral structure of individual chiral nanoparticles translates into the ensemble chiroptical response can be reached.

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540 Chemie

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chirality, nanoparticles, morphology, scanning transmission electron microscopy, secondary electron imaging, electron beam-induced current

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ISO 690VLASOV, Evgenii, Wouter HEYVAERT, Bing NI, Kyle VAN GORDON, Robin GIROD, Johan VERBEECK, Luis M. LIZ-MARZÁN, Sara BALS, 2024. High-Throughput Morphological Chirality Quantification of Twisted and Wrinkled Gold Nanorods. In: ACS Nano. ACS Publications. 2024, 18(18), S. 12010-12019. ISSN 1936-0851. eISSN 1936-086X. Verfügbar unter: doi: 10.1021/acsnano.4c02757
BibTex
@article{Vlasov2024-05-07HighT-70178,
  year={2024},
  doi={10.1021/acsnano.4c02757},
  title={High-Throughput Morphological Chirality Quantification of Twisted and Wrinkled Gold Nanorods},
  number={18},
  volume={18},
  issn={1936-0851},
  journal={ACS Nano},
  pages={12010--12019},
  author={Vlasov, Evgenii and Heyvaert, Wouter and Ni, Bing and Van Gordon, Kyle and Girod, Robin and Verbeeck, Johan and Liz-Marzán, Luis M. and Bals, Sara}
}
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