{
  "abstract": "Plasmonic nanoparticles exhibiting strong and tunable chiroptical signals have been drawing much interest recently due to their potential vast applications. A few years ago, it was shown that seed-mediated metal growth can be harnessed to make single nanoparticles intrinsically chiral. Such structures typically manifest strong circular dichroism spectral features that can be further tuned by pure colloidal aggregation, as shown by recent experiments on chiral AuBP@Au and AuBP@Ag core–shell bipyramids. Nevertheless, the origin of such effects, either CD suppression or the rise of new CD bands upon aggregation, has remained obscure. Here, by combining theoretical modeling and experiments, we shed light on such phenomenon, disclosing that single-particle chirality drives the formation of either chiral or achiral aggregates depending on the shape and metal composition of the outer shell, thereby suggesting further avenues to tailor chirality at the nanoscale.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy",
    "ENS de Lyon, CNRS, Lyon 1 Université, Laboratoire de Chimie, UMR 5182, 46 Allée d’Italie, 69364 Lyon, France",
    "Sustainable and Bio-inspired Materials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, 14476 Potsdam, Germany",
    "CNR Institute of Nanoscience, via Campi 213/A, 41125 Modena, Italy",
    "Padua Quantum Technologies Research Center, University of Padova, 35131 Padova, Italy",
    "Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale del Risorgimento 4, 40136, Bologna, Italy",
    "Center for Chemical Catalysis − C3, University of Bologna, via Piero Gobetti 85, 40129 Bologna, Italy"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Marco Romanelli",
      "orcid": "0000-0002-4330-9740"
    },
    {
      "affs": [
        1
      ],
      "name": "Pablo Mariani"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Antonio Carone"
    },
    {
      "affs": [
        1
      ],
      "name": "Anthony Désert",
      "orcid": "0000-0001-9512-832X"
    },
    {
      "affs": [
        1
      ],
      "name": "Stephane Parola"
    },
    {
      "affs": [
        0,
        3,
        4
      ],
      "name": "Stefano Corni",
      "orcid": "0000-0001-6707-108X"
    },
    {
      "affs": [
        5,
        6
      ],
      "name": "Ivan Rivalta",
      "orcid": "0000-0002-1208-602X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9kphycy4tr3ka.bib",
  "cited_by": 0,
  "doi": "10.1021/acs.jpclett.6c02669",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13726469/",
  "id": "9kphycy4tr3ka",
  "issns": [
    "1948-7185",
    "1948-7185"
  ],
  "landing_url": "https://hal.science/hal-05830674v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "heading",
      "Letter"
    ],
    [
      "heading",
      "Physical Insights into Light Interacting with Matter"
    ],
    [
      "openalex",
      "2504|Gold and Silver Nanoparticles Synthesis and Applications"
    ]
  ],
  "openalex": "W7221933049",
  "pdf_url": null,
  "pmcid": "PMC13726469",
  "pmid": "42954831",
  "published": "2026-10-15",
  "publisher": "American Chemical Society",
  "ris": "https://research.draconitic.com/paper/9kphycy4tr3ka.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "hal-05830674",
      "source": "hal",
      "url": "https://hal.science/hal-05830674v1"
    },
    {
      "first_seen": "2026-11-05T12:22:49Z",
      "native_id": "PMC13726469",
      "source": "pmc",
      "url": "https://doi.org/10.1021/acs.jpclett.6c02669"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Gold and Silver Nanoparticles Synthesis and Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Deciphering Aggregation-Induced Tunable Circular Dichroism of AuBP@Ag and AuBP@Au Chiral Core–Shell Plasmonic Nanoparticles",
  "title_text": "Deciphering Aggregation-Induced Tunable Circular Dichroism of AuBP@Ag and AuBP@Au Chiral Core–Shell Plasmonic Nanoparticles",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T12:22:49Z",
  "url": "https://research.draconitic.com/paper/9kphycy4tr3ka",
  "venue": "Journal of Physical Chemistry Letters",
  "versions": []
}