{
  "abstract": "A novel imidazole-based Schiff-base chemosensor (LH) has been synthesized and investigated for the selective optical detection of Ni2+ ions in a 1 : 1 methanol–water medium. The receptor showed a highly selective response toward Ni2+ over other tested metal ions, producing a distinct colorimetric change and significant fluorescence quenching. The sensor exhibited low detection limits of 2.1 × 10−7 M and 1.98 × 10−7 M for absorption and fluorescence measurements respectively, with a 1 : 1 L–Ni2+ binding stoichiometry. The association constants were 4.7 × 106 M−1 from absorption studies and 2.6 × 106 M−1 from fluorescence studies. The sensing process was effective over a broad pH range and was reversible using Na2EDTA, allowing repeated sensing cycles. DFT/TDDFT calculations support formation of a high-spin tetrahedral [Ni(L)(H2O)2]+ complex, with Ni–N and Ni–O coordination reinforced by EDA and NBO analyses showing substantial electrostatic/orbital interactions and ligand-to-metal charge transfer. LH displayed antibacterial activity against E. coli and S. aureus, with MIC values of 6.25 µg mL−1 and 25 µg mL−1, respectively. It also demonstrated an INHIBIT-type molecular logic gate using Ni2+ and Na2EDTA as chemical inputs. Molecular docking with VEGFR-2 gave a best predicted binding affinity of −9.4 kcal mol−1, suggesting potential biomolecular recognition properties. Overall, LH represents a multifunctional system for selective Ni2+ sensing with analytical, biological, and molecular-recognition applications.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemistry, Guru Ghasidas Vishwavidyalaya Bilaspur C.G 495009 India",
    "Department of Chemistry, Jadavpur University Kolkata 700032 India",
    "Department of Biotechnology, Guru Ghasidas Vishwavidyalaya Bilaspur C.G. 495009 India",
    "Veer Nangool Dorla Govt. College Awapalli Dist. Bijapur C. G. 494447 India",
    "Department of Chemistry, National Institute of Technology Silchar Assam 788010 India"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Devanand Sahu"
    },
    {
      "affs": [
        0
      ],
      "name": "Abhilash Pandey"
    },
    {
      "affs": [
        1
      ],
      "name": "Dwaipayan Patra"
    },
    {
      "affs": [
        2
      ],
      "name": "Annpurna Sahu"
    },
    {
      "affs": [
        3
      ],
      "name": "Amit Kumar Manna"
    },
    {
      "affs": [
        4
      ],
      "name": "Shanti Gopal Patra",
      "orcid": "0000-0003-3084-1495"
    },
    {
      "affs": [
        0
      ],
      "name": "Santosh Singh Thakur"
    },
    {
      "affs": [
        0
      ],
      "name": "Goutam Kumar Patra",
      "orcid": "0000-0003-3151-0284"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ah56z7bys2550.bib",
  "cited_by": 0,
  "doi": "10.1039/d6ra07629g",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13720778/?tool=EBI",
  "id": "ah56z7bys2550",
  "issns": [
    "2046-2069"
  ],
  "landing_url": "https://europepmc.org/article/PMC/PMC13720778",
  "language": "eng",
  "licence": "CC-BY-NC",
  "licence_label": "CC BY-NC",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Chemistry"
    ],
    [
      "openalex",
      "1607|Molecular Sensors and Ion Detection"
    ]
  ],
  "openalex": "W7224753029",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13720778/pdf/?tool=EBI",
  "pmcid": "PMC13720778",
  "pmid": "42964857",
  "published": "2026-10-30",
  "publisher": "Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/ah56z7bys2550.ris",
  "sources": [
    {
      "first_seen": "2026-10-31T12:21:36Z",
      "native_id": "PMC:PMC13720778",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13720778"
    },
    {
      "first_seen": "2026-11-03T12:21:36Z",
      "native_id": "PMC13720778",
      "source": "pmc",
      "url": "https://doi.org/10.1039/d6ra07629g"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1607|Molecular Sensors and Ion Detection",
      "subfield": "physical"
    }
  ],
  "title": "An imidazole-based Schiff-base chemosensor for selective, sensitive and reversible optical detection of Ni2+ ions in aqueous media: analytical and biological application",
  "title_text": "An imidazole-based Schiff-base chemosensor for selective, sensitive and reversible optical detection of Ni2+ ions in aqueous media: analytical and biological application",
  "type": "peer-reviewed",
  "updated_at": "2026-11-03T12:21:36Z",
  "url": "https://research.draconitic.com/paper/ah56z7bys2550",
  "venue": "RSC advances",
  "versions": []
}