1540 nm LIBS Investigation of Healthy and Pathological Human Nails

Andrey V. Belikov orcid
ITMO University, Saint Petersburg, Russia

Sergey N. Smirnov orcid
ITMO University, Saint Petersburg, Russia

Andstasia D. Tavalinskaya (Login required)
ITMO University, Saint Petersburg, Russia

Victoria S. Pomazanova
ITMO University, Saint Petersburg, Russia

Paper #3369 received 18 May 2020; revised manuscript received 19 Jun 2020; accepted for publication 25 Jun 2020; published online 30 Jun 2020.

DOI: 10.18287/JBPE20.06.020310


The paper discusses the possibility of using laser-induced breakdown spectroscopy (LIBS) as a method for the diagnosis of human nail onychomycosis. LIBS spectra obtained with excitation of plasma on the surface of healthy and onychomycotic nails by pulses of Q switched Yb, Er: Glass laser radiation with a wavelength of 1540 nm were compared for the first time. The spectrum of onychomycotic nail contained unique lines additional to characteristic spectral lines of healthy nails. These additional lines disappeared after 90 days of sample storage in air at room temperature 20 ± 3 °C.


LIBS; onychomycosis; Yb, Er: Glass laser; nail; diagnostics; spectrum

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