{
  "abstract": "A Schiff-base derived chromogenic probe 2-amino-3-((E)-4-hydroxy-3,5-dimethoxybenzylidene amino)maleonitrile (SYDA) has been synthesised successfully. Nuclear Magnetic Resonance (NMR) and High-Resolution Mass Spectrometry (HRMS) spectral analyses have been employed to characterise the synthesised sensing probe SYDA. The limit of detection for Cu2+ and CN− was found to be 19.2 nM and 94.5 nM, respectively, and the reaction time was less than 10 seconds. The interaction of the sensing probe with Cu2+ and CN− resulted in a significant colour change from colourless to pale yellow and yellow respectively. The colorimetric detection of Cu2+ and CN− was demonstrated using bottle images and paper strips. Further, the recognition of Cu2+ and CN− in the solid state, environmental water samples, and swab test kits were achieved.",
  "abstract_shown": true,
  "affiliations": [
    "aDepartment of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632 014, India."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Nandhini Karthikeyan"
    },
    {
      "affs": [
        0
      ],
      "name": "Kulathu Iyer Sathiyanarayanan",
      "orcid": "0000-0003-3865-4088"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bta85vbpcp5bv.bib",
  "cited_by": 0,
  "doi": "10.1039/d6ra04531f",
  "fulltext_url": "https://pubs.rsc.org/ra/article-pdf/16/47/61686/14757579/d6ra04531f.pdf",
  "id": "bta85vbpcp5bv",
  "issns": [
    "2046-2069"
  ],
  "landing_url": "https://doi.org/10.1039/d6ra04531f",
  "language": "en",
  "licence": "CC-BY-NC-3.0",
  "licence_label": "CC BY-NC 3.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/3.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Chemistry"
    ],
    [
      "lcc",
      "QD1-999"
    ],
    [
      "openalex",
      "1607|Molecular Sensors and Ion Detection"
    ]
  ],
  "openalex": "W7214128167",
  "pdf_url": "https://pubs.rsc.org/ra/article-pdf/doi/10.1039/d6ra04531f/14757579/d6ra04531f.pdf",
  "pmcid": "PMC13598502",
  "pmid": "42780597",
  "published": "2026-09-01",
  "publisher": "The Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/bta85vbpcp5bv.ris",
  "sources": [
    {
      "first_seen": "2026-10-31T14:22:35Z",
      "native_id": "0a6d53d3fcfd40acb8e0df736535da84",
      "source": "doaj",
      "url": "https://doi.org/10.1039/d6ra04531f"
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    {
      "first_seen": "2026-11-01T12:23:32Z",
      "native_id": "PMC13598502",
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      "url": "https://doi.org/10.1039/d6ra04531f"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1607|Molecular Sensors and Ion Detection",
      "subfield": "physical"
    }
  ],
  "title": "A Schiff-base derived colorimetric sensor with high performance for the detection of copper and cyanide ions and its real time application",
  "title_text": "A Schiff-base derived colorimetric sensor with high performance for the detection of copper and cyanide ions and its real time application",
  "type": "peer-reviewed",
  "updated_at": "2026-11-02T12:20:46Z",
  "url": "https://research.draconitic.com/paper/bta85vbpcp5bv",
  "venue": "RSC Advances",
  "versions": []
}