{
  "abstract": "Surface coating may influence the physicochemical and mechanical properties of surgical sutures. This study was conducted to characterize the changes associated with a humic-acid-containing alginate coating applied to silk and poly(glycolide-co-lactide) (PGLA) sutures in two sizes (3-0 and 4-0). Untreated sutures served as controls. Surface-related spectral changes were examined using Fourier-transform infrared (FTIR) spectroscopy, while mechanical properties were evaluated via tensile testing in accordance with EN ISO 2062. Maximum tensile force and elongation at break were recorded. FTIR analysis revealed changes in the intensity and breadth of selected absorption bands, particularly those associated with O–H and C=O groups, after the coating was applied. These findings indicated treatment-associated spectral changes but did not independently confirm humic acid incorporation or coating stability. The maximum tensile force was lower in treated silk sutures than in untreated controls for both size 3-0 (22.6 ± 3.68 N vs. 17.8 ± 1.35 N; p = 0.140) and size 4-0 (12.8 ± 1.21 N vs. 10.6 ± 2.56 N; p = 0.276), although neither difference was statistically significant. For PGLA sutures, no statistically significant difference was observed for size 3-0 (27.7 ± 2.80 N vs. 27.6 ± 2.56 N; p = 0.966). In contrast, the size 4-0 PGLA sutures exhibited a higher maximum tensile force following treatment (14.2 ± 1.85 N vs. 21.1 ± 2.45 N; p = 0.021). Elongation at break increased in the treated size 3-0 silk sutures (16.0 ± 0.91% vs. 20.3 ± 1.10%; p = 0.007) and decreased in the treated size 4-0 silk sutures (19.3 ± 1.26% vs. 14.8 ± 1.75%; p = 0.027). No statistically significant differences in elongation were found for size 3-0 PGLA (32.1 ± 1.16% vs. 28.4 ± 2.21%; p = 0.082) or size 4-0 PGLA sutures (31.4 ± 1.88% vs. 30.8 ± 1.24%; p = 0.672). These preliminary findings indicate that the humic-acid-containing alginate coating procedure was associated with spectral changes and different mechanical responses in silk and PGLA sutures.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Periodontology, Faculty of Dentistry, Bursa Uludag University, Bursa 16120, Turkey",
    "Department of Oral and Dental Health, Vocational School of HealthCare Services, Istinye University, Istanbul 34396, Turkey",
    "Department of Textile and Fashion, Şebinkarahisar School of Applied Sciences, Giresun University, Giresun 28400, Turkey",
    "Department of Restorative Dentistry, Faculty of Dentistry, Bursa Uludag University, Bursa 16120, Turkey",
    "Department of Mechanical Engineering, Faculty of Science & Technology, University Mustapha Stambouli of Mascara, Mascara 29000, Algeria",
    "Laboratory of Mechanics Physics of Materials (LMPM), Faculty of Technology, University Djillali Liabés of Sidi Bel-Abbés, Sidi Bel-Abbès 22000, Algeria",
    "Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, India"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Aysun Akpınar",
      "orcid": "0000-0002-6740-3598"
    },
    {
      "affs": [
        1
      ],
      "name": "Halil Çelik"
    },
    {
      "affs": [
        2
      ],
      "name": "Mehmet Kılınç"
    },
    {
      "affs": [
        3
      ],
      "name": "Zeynep Ceren Çelik",
      "orcid": "0000-0002-6900-2632"
    },
    {
      "affs": [
        4,
        5
      ],
      "name": "Ali Merdji"
    },
    {
      "affs": [
        6
      ],
      "name": "Sandipan Roy",
      "orcid": "0000-0002-6888-272X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bbwv74gpeyfcg.bib",
  "cited_by": 0,
  "doi": "10.3390/polym18212676",
  "fulltext_url": null,
  "id": "bbwv74gpeyfcg",
  "issns": [
    "2073-4360"
  ],
  "landing_url": "https://www.mdpi.com/2073-4360/18/21/2676",
  "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",
      "2746|Surgical Sutures and Adhesives"
    ]
  ],
  "openalex": "W7224101048",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-28",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/bbwv74gpeyfcg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:44Z",
      "native_id": "10.3390/polym18212676",
      "source": "crossref",
      "url": "https://www.mdpi.com/2073-4360/18/21/2676"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2746|Surgical Sutures and Adhesives",
      "subfield": "surgery"
    }
  ],
  "title": "Physicochemical and Mechanical Characterization of Silk and PGLA Dental Sutures Following Humic-Acid-Containing Surface Treatment",
  "title_text": "Physicochemical and Mechanical Characterization of Silk and PGLA Dental Sutures Following Humic-Acid-Containing Surface Treatment",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:44Z",
  "url": "https://research.draconitic.com/paper/bbwv74gpeyfcg",
  "venue": "Polymers",
  "versions": []
}