Plasmonics

Chemiluminescent hydrogen peroxide sensor based on luminol and a colloidal solution of metal nanoparticles

N. A. Virts^ab, D. R. Dadadzhanov^a, A. S. Yablokov^c, D. V. Shershnev^b, T. A. Vartanyan<sup>a

a</sup> St. Petersburg National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia
^b Novosibirsk State University, Novosibirsk, Russia
^c LLC "Pharmsintek", 400075 Volgograd, Russia

Abstract: The effect of gold and silver nanoparticles with plasmon resonance on the chemiluminescence of luminol in an oxidizing environment was studied. It has been shown that when a colloidal solution of metal nanoparticles is added to luminol, the intensity of chemiluminescence caused by the presence of hydrogen peroxide and sodium hypochlorite increases and can be easily recorded at a pH level characteristic of biological media close to neutral, at which chemiluminescence is weak in the absence of metal nanoparticles.

Keywords: chemiluminescence, plasmon resonance, silver nanoparticles, gold nanoparticles, pH value.

Received: 18.11.2023
Revised: 18.11.2023
Accepted: 23.11.2023

DOI: 10.61011/OS.2023.11.57033.5767-23

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