Bisphenol A Imprinted Electrochemical Sensor Based on Graphene Quantum Dots with Boron Functionalized g-C<sub>3</sub>N<sub>4</sub> in Food Samples

Deveci H. A., Kaya M. M., Kaya I., Yola B. B., Atar N., YOLA M. L.

BIOSENSORS-BASEL, cilt.13, sa.7, 2023 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13 Sayı: 7
  • Basım Tarihi: 2023
  • Doi Numarası: 10.3390/bios13070725
  • Dergi Adı: BIOSENSORS-BASEL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, EMBASE, INSPEC, MEDLINE, Directory of Open Access Journals
  • Ankara Üniversitesi Adresli: Hayır

Özet

A molecular imprinted electrochemical sensor based on boron-functionalized graphitic carbon nitride (B-g-C3N4) and graphene quantum dots (GQDs) was presented for selective determination of bisphenol A (BPA). In particular, by combining the selectivity and high stability properties, which are the most important advantages of molecular imprinted polymers, and the highly sensitive properties of GQDs/B-g-C3N4 nanocomposite, a highly selective and sensitive analytical method was developed for BPA analysis. Firstly, GQDs/B-g-C3N4 nanocomposite was characterized by using microscopic, spectroscopic, and electrochemical techniques. This novel molecular imprinted electrochemical sensor for BPA detection demonstrated a linearity of 1.0 x 10(-11)-1.0 x 10(-9) M and a low detection limit (LOD, 3.0 x 10(-12) M). BPA-imprinted polymer on GQDs/B-g-C3N4 nanocomposite also showed good stability, repeatability and selectivity in food samples.