Jahor Omping, Romnick Unabia, Renzo Luis Reazo, Melbagrace Lapening, Ryan Lumod, Archie Ruda, Rolen Brian Rivera, Noel Lito Sayson, Felmer Latayada, Rey Capangpangan, Gerard Dumancas, Roberto Malaluan, Arnold Lubguban, Gaudencio Petalcorin, Arnold Alguno
Histamine is among the biogenic amines that are formed during the microbial decarboxylation of amino acids in various food products, posing a significant threat to both food safety and human health. Herein, we present a one-step synthesis of PEGylated gold nanoparticles (PEG-AuNPs) for rapid, simple, and cost-effective colorimetric histamine detection. PEG-AuNPs' surface plasmon resonance (SPR) range at 520-530 nm with a hydrodynamic size distribution of 20-40 nm. Fourier transform infrared (FT-IR) spectra confirmed the reduction of AuNPs at 1645 cm-1 along with the other observed peaks at 2870, 1350, and 1100 cm-1 as a strong evidence for the presence of PEG...
March 26, 2024: ACS Omega