Non-enzymatic glucose sensors based on Hexa-peri-hexabenzocoronene: A computational study

  • Yan Cao
  • , A. S. El-Shafay
  • , Hala A. Ibrahium
  • , Nasser S. Awwad
  • , Mohammad Y. Alshahrani
  • , Saeideh Ebrahim

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Using density functional theory (DFT) method, hexa-peri-hexabenzocoronene (HBC) and its central ring doped analogues (BN-HBC and AlN-HBC) were studied as non-enzymatic glucose sensors. The HOMO-LUMO energy gap (Eg) of pristine HBC and BN-HBC remain almost constant upon adsorption of GLU molecule, and therefore these nanographenes do not show electronic sensitivity toward GLU molecule. The Eg value of AlN-HBC decreases by about −18.48% after GLU adsorption and the electrical conductance of AlN-HBC turns out to be 1.2 × 105 times higher after adsorption of GLU molecule. AlN-HBC can behave as a selective sensor of GLU in the presence of FRU molecule.

Original languageEnglish
Article number111388
JournalChemical Physics
Volume553
DOIs
StatePublished - 15 Jan 2022
Externally publishedYes

Keywords

  • Density functional theory (DFT)
  • Fructose (FRU)
  • Glucose (GLU)
  • Hexa-peri-hexabenzocoronene (HBC)
  • Non-enzymatic glucose sensors

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