Optics and Spectroscopy
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Metal-enhanced chemiluminescence of luminol in a microfluidic system with vacuum-deposited silver nanoparticles
Kononov D. V.1, Palekhova A. V. 1, Filatov N. A.
2, Leonov N.B.1, Bukatin A.S.
2,3, Dadadzhanov D.R.
1, Vartanyan T. A.
1
1ITMO University, St. Petersburg, Russia
2Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg, Russia
3Institute for Analytical Instrumentation of the Russian Academy of Sciences, Saint Petersburg, Russia
2Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg, Russia
3Institute for Analytical Instrumentation of the Russian Academy of Sciences, Saint Petersburg, Russia
Email: DanilaKononov@outlook.com, alyonapalekhova1@gmail.com, nikita.filatov@inbox.ru, nikitaleonov@yandex.ru, antbuk.fiztek@gmail.com, daler.dadadzhanov@gmail.com, Tigran.Vartanyan@mail.ru
Enhancement of luminol chemiluminescence in the presence of silver nanoparticles was studied in a microfluidic chip specially developed for this purpose. The chip design provides intensive mixing of luminol with an oxidizer and delivery of the mixture to nanoparticles that have a plasmon resonance in the luminol chemiluminescence band. The dependence of the luminol chemiluminescence intensity on the sodium hypochlorite concentration was established. Coating the bottom of the microfluidic chip with silver nanoparticles led to an increase in the luminol chemiluminescence intensity in a neutral medium by an average of one and a half times. Keywords: microfluidic chip, chemiluminescence, plasmon resonance, luminol.
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