Straightforward fabrication of bioactive polymeric surfaces for bacterial immobilization


Deveci G., KOÇER S., BALIK D., Kahveci M. Ü.

Journal of Macromolecular Science, Part A: Pure and Applied Chemistry, cilt.62, sa.12, ss.1382-1392, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 62 Sayı: 12
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1080/10601325.2025.2589931
  • Dergi Adı: Journal of Macromolecular Science, Part A: Pure and Applied Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex
  • Sayfa Sayıları: ss.1382-1392
  • Anahtar Kelimeler: bacterial immobilization, Concanavalin A, Functional surface, SI-ATRP, succinimide
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Rapid and reliable detection of pathogenic bacteria requires support materials relying on functional polymeric materials that can immobilize bacteria. Herein, a straightforward approach for the fabrication of surfaces for bacterial immobilization. The surfaces were designed to be conjugated with Concanavalin A (Con A), a lectin that recognizes mannosyl and glucosyl groups of lipopolysaccharides, the protective outer cell membrane of Gram-negative bacteria such as Escherichia coli. Two distinct surfaces, glass and polymeric microparticles, were chosen and modified for the Con A conjugation. Both surfaces were grafted with the same constituting monomers: poly(ethylene glycol) methyl ether methacrylate (PEGMA) and N-(methacryloxy)succinimide (NMAS) through a surface-initiated atom transfer radical polymerization. Subsequently, Con A was conjugated to the surfaces via succinimidyl functionalities of the P(PEGMA-co-NMAS)grafted to the surfaces. A green fluorescent protein (GFP)-expressing E. coli strain was utilized to monitor the bacterial attachment. Fluorescent microscopy results revealed that the Con A-conjugated surfaces captured GFP E. coli.