{
  "abstract": "The aqueous colloids of Au@PEtOx-stat-PBuOx (Au@PEtOx 1-x PBuOx x ) core-shell nanoparticles with a gold core (Au) and a shell formed by a thermoresponsive statistical copolymers α-methyl-ω-hydroxy poly(2-ethyl-2-oxazoline)-stat-poly(2-n-butyl-2-oxazoline) with various relative content of hydrophobic and hydrophilic units or α-methyl-ω-hydroxy poly(2-ethyl-2-oxazoline) (PEtOx) were synthesized as a potential platform for plasmonic based thermo-optical applications, thermally switchable optical absorbers in particular. Dynamic and electrophoretic light scattering, UV-Vis absorption, Raman scattering measurements as well as numerical simulation showed that the PEtOx-stat-PBuOx shell in Au@PEtOx 1-x PBuOx x nanoparticles undergoes a lower critical solution temperature (LCST) phase transition, which produces a sharp, switch-like change in the plasmonic optical response of the Au core. The LCST transition temperature was found to shift monotonically from 81 to 17 • C as the hydrophobic PBuOx content x increases from 0 to 0.3, passing through the physiological temperature of 37 • C at x = 0.19. The revealed effect of the precise and predictable tuning of the switching temperature by varying the ratio of the hydrophilic PEtOx and hydrophobic PBuOx components in the PEtOx-stat-PBuOx copolymer shell makes this system highly versatile for various temperature-controlled nanophotonic and biomedical applications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "name": "Oleg Yeshchenko"
    },
    {
      "name": "Lea Daoud"
    },
    {
      "name": "Oles Fedotov"
    },
    {
      "name": "Pavlo Khort"
    },
    {
      "name": "Oksana Krupka"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0b8qbs3ak8hba.bib",
  "cited_by": 0,
  "doi": "10.1016/j.mtcomm.2026.115748",
  "fulltext_url": null,
  "id": "0b8qbs3ak8hba",
  "issns": [
    "2352-4928"
  ],
  "landing_url": "https://hal.science/hal-05797288v1",
  "language": "en",
  "licence": "CC-BY-NC-4.0",
  "licence_label": "CC BY-NC 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "openalex",
      "2504|Gold and Silver Nanoparticles Synthesis and Applications"
    ]
  ],
  "openalex": "W7169522446",
  "pdf_url": "https://hal.science/hal-05797288/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-13",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/0b8qbs3ak8hba.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:56Z",
      "native_id": "hal-05797288",
      "source": "hal",
      "url": "https://hal.science/hal-05797288v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Gold and Silver Nanoparticles Synthesis and Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Thermally switchable plasmonic optical response of Au@PEtOx-stat-PBuOx core-shell nanoparticles with a tunable switching point",
  "title_text": "Thermally switchable plasmonic optical response of Au@PEtOx-stat-PBuOx core-shell nanoparticles with a tunable switching point",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:56Z",
  "url": "https://research.draconitic.com/paper/0b8qbs3ak8hba",
  "venue": "Materials Today Communications",
  "versions": []
}