{
  "abstract": "The incorporation of hybrid nanomaterials and fiber architectures into fiber-optic biosensors has proven to be effective in improving sensing performance. This study developed a plasmonic biosensor using a tapered multimode fiber (MMF)–multicore fiber (MCF)–MMF structure functionalized with a nanocomposite of gold nanoparticles (AuNPs), tungsten disulfide quantum dots (WS2-QDs), and multi-walled carbon nanotubes (MWCNTs) for selective triclosan detection. Combining WS2-QDs and MWCNTs with AuNPs leverages their individual advantages, creating an active sensing interface with abundant analyte-binding sites, thereby substantially improving responsiveness. The composite-modified structure also promotes higher-order mode generation, which is critical for sensitivity enhancement. When optically excited, the periodic plasmonic geometry produces strong evanescent fields that intensify interactions between the immobilized nanocomposite and target molecules. Transmission spectroscopy demonstrated that the biosensor achieved a detection limit of 3.87 µM within the 0–40 µM range. These results show that the strategic combination of WS2-QDs and MWCNTs with AuNPs significantly amplifies localized surface plasmon resonance (LSPR) effects. This architecture offers a promising approach for developing sensitive fiber-optic biosensors, particularly for environmental monitoring of agents like triclosan.",
  "abstract_shown": true,
  "affiliations": [
    "Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China",
    "Postdoctoral Research Station, Vital Optics Technology Co., Ltd., Chuzhou 239064, China",
    "Vital Materials Co., Ltd., Beijing 100192, China",
    "Liaocheng Science and Technology Information Research Center, No. 16 Huanghe Road, High-Tech District, Liaocheng 252001, China",
    "Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram 522302, Andhra Pradesh, India",
    "Bay Area School of Applied Psychological Sciences, Beijing Normal University, Zhuhai 519087, China",
    "Faculty of Psychology, Beijing Normal University, Beijing 100875, China",
    "School of Computer & Communication Engineering, University of Science & Technology Beijing, No. 30, Xue Yuan Road, Haidian District, Beijing 100083, China",
    "CICECO–Aveiro Institute of Materials & Physics Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal",
    "Department of Physics, VSB–Technical University of Ostrava, 70800 Ostrava, Czech Republic",
    "Centre of Excellence for Nanotechnology, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram 522302, Andhra Pradesh, India"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Jiaqi Gao",
      "orcid": "0009-0002-0954-6600"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Ben Niu"
    },
    {
      "affs": [
        3
      ],
      "name": "Mengmeng Zhang"
    },
    {
      "affs": [
        0
      ],
      "name": "Feilong Gao"
    },
    {
      "affs": [
        0
      ],
      "name": "Yiyan Xie",
      "orcid": "0000-0001-5962-7316"
    },
    {
      "affs": [
        4
      ],
      "name": "Ragini Singh",
      "orcid": "0000-0001-9677-3582"
    },
    {
      "affs": [
        5,
        6
      ],
      "name": "Rui Min"
    },
    {
      "affs": [
        7
      ],
      "name": "Xian Zhou"
    },
    {
      "affs": [
        8,
        9
      ],
      "name": "Carlos Marques",
      "orcid": "0000-0002-8596-5092"
    },
    {
      "affs": [
        0
      ],
      "name": "Bingyuan Zhang"
    },
    {
      "affs": [
        10
      ],
      "name": "Santosh Kumar",
      "orcid": "0000-0003-4149-0096"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8vt7ey3bh90hy.bib",
  "cited_by": 0,
  "doi": "10.3390/nano16211339",
  "fulltext_url": null,
  "id": "8vt7ey3bh90hy",
  "issns": [
    "2079-4991"
  ],
  "landing_url": "https://www.mdpi.com/2079-4991/16/21/1339",
  "language": null,
  "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": [
    [
      "openalex",
      "2208|Advanced Fiber Optic Sensors"
    ]
  ],
  "openalex": "W7223240268",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/8vt7ey3bh90hy.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:45Z",
      "native_id": "10.3390/nano16211339",
      "source": "crossref",
      "url": "https://www.mdpi.com/2079-4991/16/21/1339"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2079-4991",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Plasmonic Quantum Nanocomposite-Modified Multimode–Multicore Fiber for Sensitive Optical Biosensing of Triclosan",
  "title_text": "Plasmonic Quantum Nanocomposite-Modified Multimode–Multicore Fiber for Sensitive Optical Biosensing of Triclosan",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:45Z",
  "url": "https://research.draconitic.com/paper/8vt7ey3bh90hy",
  "venue": "Nanomaterials",
  "versions": []
}