Advance Heteroatom Dopants Nitrogen, Boron, Sulphur, and Phosphorus on Carbon Dots towards Histamine Detection in Fish Sample

Mochamad Zakki Fahmi, Siti Febtria Asrini Sugito, Nadia Aulia Hanifah, Ummi Lathifah Nuraini, Bambang Purwanto, Lee Hwei Voon

Research output: Contribution to journalArticlepeer-review

Abstract

This study introduces heteroatom-doped carbon dots (CDs), namely boron-sulphur (BS-CDs) and nitrogen-phosphorus (NP-CDs), highlighting their potential as optical materials for sensitive histamine detection in sensor applications. Synthesized through facile pyrolysis of citric acid cores with non-metal dopants, resulting in confirmed graphene-like structures and uniform spheres with crystal diameters below 3 nm of BS-CDs and NP-CDs. The optical properties exhibited blue fluorescence, with emission wavelengths of 280 nm (QY 0.08%) and 420 nm (QY 1.72%) for BS-CDs and NP-CDs, respectively. Despite declined fluorescence intensities due to interfering components, both CDs demonstrated low selectivity for histamine, which increased the intensity in its presence. Notably, BS-CDs exhibited superior detectability of histamine at a low concentration of 26.3 ppm compared to 42.8 ppm for NP-CDs. Cytotoxicity studies indicated low toxicity for both CDs, positioning them as promising candidates for further development as histamine detectors.

Original languageEnglish
Pages (from-to)347-358
Number of pages12
JournalSains Malaysiana
Volume53
Issue number2
DOIs
Publication statusPublished - Feb 2024

Keywords

  • Boron
  • carbon dots
  • co-dopants
  • histamine detector
  • nitrogen
  • phosphorus
  • sulphur

Fingerprint

Dive into the research topics of 'Advance Heteroatom Dopants Nitrogen, Boron, Sulphur, and Phosphorus on Carbon Dots towards Histamine Detection in Fish Sample'. Together they form a unique fingerprint.

Cite this