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. 2023 Mar 1:254:124157.
doi: 10.1016/j.talanta.2022.124157. Epub 2022 Dec 1.

Metal-enhanced bioluminescence by detergent stabilized Ag and Au nanoparticles

Elizaveta P Morozova  1 , Tatiana E Smoliarova  2 , Kirill A Lukyanenko  1 , Maria A Kirillova  3 , Mikhail N Volochaev  4 , Anna S Kichkailo  5 , Rajeev Ranjan  3 , Valentina A Kratasyuk  3
Affiliations

Metal-enhanced bioluminescence by detergent stabilized Ag and Au nanoparticles

Elizaveta P Morozova et al. Talanta. .

Abstract

The assessment of microbial contamination is an important aspect of ensuring human food safety. One of the modern methods for the evaluation of microbial contamination is the estimation of the amount of ATP using firefly luciferase. In this case, the choice of an effective composition of the extraction buffer is crucial. In this study, we examined the influence of silver and gold nanoparticles on the firefly bioluminescent system during the ATP extraction process. It was found that gold nanoparticles stabilized with benzalkonium chloride and Triton X-100 enhanced bioluminescent system signal intensity due to metal-enhanced bioluminescence. Moreover, silver and gold nanoparticles could be used as extracting agents. So, using gold nanoparticles stabilized with BAC and Triton X-100 as ATP extraction agents with further detection by a bioluminescent system makes it possible to develop an ATP biosensor with higher sensitivity.

Keywords: ATP extraction; Firefly bioluminescence; Gold nanoparticles; MEB; Silver nanoparticles.

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Conflict of interest statement

Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:Tatiana Smoliarova reports financial support was provided by Ministry of Science and Higher Education of the Russian Federation.

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