{
  "abstract": "Bioimaging, sensing, and photonic applications of oxygen-sensitive luminophores such as near-infrared (NIR) emissive spin-flip complexes of earth-abundant chromium (CrIII) and triplet metal-to-ligand charge transfer complexes like ruthenium (RuII), osmium (OsII) or iridium (IrIII) compounds in air require efficient strategies for their complete protection from luminescence quenching by oxygen (O₂). Here, we explored the applicability of our l-arginine-type sol-gel nanoparticle synthesis route developed for complete oxygen shielding of a molecular ruby-type luminophore [Cr-(ddpd)₂]-(BF₄)₃ (Crddpd) to a representatively chosen RuII complex [Ru-(phen)₃]-Cl₂ (Ruphen) and a RuII pyrene dyad [Ru-(phen)₂(phenpy)]-Cl₂ (Ruphenpy) with luminescence lifetimes of 1.1 μs and ∼50 μs in the absence of O₂, thus confirming its versatility. Temperature-dependent steady-state and time-resolved luminescence measurements with the RuII and CrIII complexes in air- and argon (Ar)-saturated aqueous solution and encapsulated in silica nanoparticles (SiO₂ NPs) prepared by the l-arginine and the classical Stöber method demonstrated the preserved temperature sensitivity of these luminophores in both silica networks. These measurements highlight the importance of complete O₂ protection for reliable temperature sensing with O₂-sensitive luminophores in air. These findings, together with the enhanced photostability observed for l-arginine SiO₂ NPs-encapsulated Ruphen and Ruphenpy, can pave the road for many applications of O₂-sensitive systems in air in the life and material sciences.",
  "abstract_shown": true,
  "affiliations": [
    "Federal Institute for Materials Research and Testing (BAM), Division 1.2 Biophotonics, Richard-Willstaetter-Str. 11, Berlin 12489, Germany.",
    "Free University Berlin, Institute for Chemistry and Biochemistry, Takustr. 3, Berlin 14195, Germany.",
    "Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, Mainz 55128, Germany.",
    "Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Str. 42, Vienna 1090, Austria."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 10,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Viktoriia Osipova"
    },
    {
      "affs": [
        0
      ],
      "name": "Christian Homann",
      "orcid": "0000-0001-7776-5018"
    },
    {
      "affs": [
        2
      ],
      "name": "Arne C Weber",
      "orcid": "0000-0002-3913-2399"
    },
    {
      "affs": [
        3
      ],
      "name": "Lingcong Ge"
    },
    {
      "affs": [
        0
      ],
      "name": "Isabella Tavernaro",
      "orcid": "0009-0004-0134-1066"
    },
    {
      "affs": [
        2
      ],
      "name": "Elena Meßmer"
    },
    {
      "affs": [
        2
      ],
      "name": "Katja Heinze",
      "orcid": "0000-0003-1483-4156"
    },
    {
      "affs": [
        3
      ],
      "name": "Michael R Reithofer",
      "orcid": "0000-0002-6328-1896"
    },
    {
      "affs": [
        2
      ],
      "name": "Christoph Kerzig",
      "orcid": "0000-0002-1026-1146"
    },
    {
      "affs": [
        0
      ],
      "name": "Ute Resch-Genger",
      "orcid": "0000-0002-0944-1115"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b4dvsfaeref4z.bib",
  "cited_by": 0,
  "doi": "10.1021/acsmeasuresciau.6c00124",
  "fulltext_url": "https://europepmc.org/articles/PMC13693274",
  "id": "b4dvsfaeref4z",
  "issns": [
    "2694-250X"
  ],
  "landing_url": "https://europepmc.org/article/MED/42921124",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2505|Luminescence and Fluorescent Materials"
    ]
  ],
  "openalex": "W7202070172",
  "pdf_url": "https://europepmc.org/articles/PMC13693274?pdf=render",
  "pmcid": "PMC13693274",
  "pmid": "42921124",
  "published": "2026-08-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b4dvsfaeref4z.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:02Z",
      "native_id": "MED:42921124",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42921124"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Luminescence and Fluorescent Materials",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Oxygen-Unaffected Temperature Sensing in Air-Saturated Aqueous Dispersion with Oxygen-Sensitive Luminescent Metal Complexes Encapsulated in l‑Arginine-Type Silica Networks.",
  "title_text": "Oxygen-Unaffected Temperature Sensing in Air-Saturated Aqueous Dispersion with Oxygen-Sensitive Luminescent Metal Complexes Encapsulated in l‑Arginine-Type Silica Networks.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:21:02Z",
  "url": "https://research.draconitic.com/paper/b4dvsfaeref4z",
  "venue": "ACS measurement science au",
  "versions": []
}