Evidence map›Paper›PMID 41904815›Full record

ArticleSmall (Weinheim an der Bergstrasse, Germany)2026

Essential Role of Icosahedral Symmetry in the 3D Shape of AuAg Plasmonic Nanostars With High Aspect-Ratio Legs.

Leonardo M Corrêa, Simon M Fairclough, Kaleigh M R Scher, Supriya Atta, Diego P Dos Santos, Caterina Ducati, Laura Fabris, Daniel Ugarte

Abstract read
In one paragraph

Article in Small (Weinheim an der Bergstrasse, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Leonardo M CorrêaUniversidade Estadual de Campinas, Instituto de Física Gleb Wataghin, Campinas, São Paulo, Brazil.
Simon M FaircloughDepartment of Materials and Metallurgy, University of Cambridge, Cambridge, UK.
Kaleigh M R ScherDepartment of Materials Science and Engineering, Rutgers University, New Jersey, USA.
Supriya AttaDepartment of Biomedical Engineering, Duke University, Durham, North Carolina, USA.
Diego P Dos SantosInstituto De Química, Universidade Estadual de Campinas, Campinas, Brazil.
Caterina DucatiDepartment of Materials and Metallurgy, University of Cambridge, Cambridge, UK.
Laura FabrisDepartment of Applied Science and Technology, Politecnico di Torino, Torino, Italy.
Daniel UgarteUniversidade Estadual de Campinas, Instituto de Física Gleb Wataghin, Campinas, São Paulo, Brazil.ORCID https://orcid.org/0000-0003-3332-9139

Funding

Busch Biomedical Grant Program at Rutgers UniversityCAPES 1765876/2018CNPq 140596/2020-8CNPq 303025/2022-0CNPq 402092/2025-2CNPq 402676/2021-1CNPq 403359/2023-6CNPq 405087/2021-7EPSRC EP/R008779/1ERC, European Union's Horizon 2020 865819European Union's Horizon 2020 865819FAPESP 2016/21070-5FAPESP 2022/11983-4FAPESP 2024/00998-6FAPESP 2025/05239-9Rutgers University 2016/21070-5Rutgers University 2022/11983-4Rutgers University 2024/00998-6Rutgers University 2025/05239-9
6 · The paper itself

Abstract

Plasmonic nanoparticles play an essential role in improving the sensitivity of different optical methods, and multibranched nanostars are predicted to show the highest enhancement factor for several applications in the near infrared region. The structural complexity of these particles represents a serious challenge with respect to gathering precise knowledge of atomic arrangement and 3D star morphology, making it difficult to accurately predict their optical response and to devise new synthetic methods addressing various applications. Here, we have used 4D-STEM diffraction mapping and a thorough crystallographic analysis to determine leg configuration in space, so that a better understanding of plasmonic properties and growth mechanism can be obtained. Our results show that although electron microscopy images may show a certain shape diversity with stars displaying 4- 5- or 6 branches, the orientation of these legs in space follows the positions associated with the apexes of an icosahedral core. The direct application of the measured star structures has been used as quantitative structural input in optical simulations, which show excellent agreement with experimental measurements. This evidence confirms the crucial role of icosahedral symmetry for explaining the growth mechanism and plasmonic response of gold nanostars with high-aspect-ratio legs.

Indexed as

4D‐STEMcrystal orientation mappingmorphologynanostarsplasmonic nanoparticlesprecession electron diffraction

Identifiers

PMID41904815
PMCPMC13173317

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.