Highly effective 525 nm femtosecond laser crosslinking of collagen and strengthening of a human donor cornea
M Y Gerasimov
2
,
N. V. Minaev
1
,
I A Mushkova
2
,
Boris Malyugin
2
,
Svetlana L Kotova
4, 5
,
Petr S. Timashev
4
,
S V Kostenev
2
,
Boris N. Chichkov
6
,
V. N. Bagratashvili
1
1
Publication type: Journal Article
Publication date: 2017-12-12
scimago Q3
wos Q3
SJR: 0.324
CiteScore: 3.0
Impact factor: 1.4
ISSN: 16122011, 1612202X
Physics and Astronomy (miscellaneous)
Instrumentation
Abstract
A two-photon laser femtosecond crosslinking process at the wavelength of 525 nm was studied in a human donor cornea in the presence of riboflavin using two-photon optical microscopy and nanoindentation. It was shown that such an approach results in efficient crosslinking of the corneal collagen and a significant (three-fold) increase in the Young's modulus of the corneal structure. Application of a femtosecond laser with the wavelength of 525 nm allows a drastic enhancement of efficiency in the presence of riboflavin on human corneas and a 50-fold reduction of the laser treatment duration in comparison with the use of a femtosecond laser with the wavelength of 760 nm. We relate this effect to a significant growth in the coefficient of two-photon absorption due to the laser wavelength falling within the edge of the photoinitiator (riboflavin) absorption band. Our studies on a donor human cornea demonstrate the good potential for the clinical application of a femtosecond laser with the wavelength of 525 nm for increasing the cornea rigidity using the two-photon laser femtosecond crosslinking technique.
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GOST
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Shavkuta B. S. et al. Highly effective 525 nm femtosecond laser crosslinking of collagen and strengthening of a human donor cornea // Laser Physics Letters. 2017. Vol. 15. No. 1. p. 15602.
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Shavkuta B. S., Gerasimov M. Y., Minaev N. V., Kuznetsova D. S., Dudenkova V., Mushkova I. A., Malyugin B., Kotova S. L., Timashev P. S., Kostenev S. V., Chichkov B. N., Bagratashvili V. N. Highly effective 525 nm femtosecond laser crosslinking of collagen and strengthening of a human donor cornea // Laser Physics Letters. 2017. Vol. 15. No. 1. p. 15602.
Cite this
RIS
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TY - JOUR
DO - 10.1088/1612-202X/aa963b
UR - https://doi.org/10.1088/1612-202X/aa963b
TI - Highly effective 525 nm femtosecond laser crosslinking of collagen and strengthening of a human donor cornea
T2 - Laser Physics Letters
AU - Shavkuta, Boris S.
AU - Gerasimov, M Y
AU - Minaev, N. V.
AU - Kuznetsova, Daria S.
AU - Dudenkova, Varvara
AU - Mushkova, I A
AU - Malyugin, Boris
AU - Kotova, Svetlana L
AU - Timashev, Petr S.
AU - Kostenev, S V
AU - Chichkov, Boris N.
AU - Bagratashvili, V. N.
PY - 2017
DA - 2017/12/12
PB - IOP Publishing
SP - 15602
IS - 1
VL - 15
SN - 1612-2011
SN - 1612-202X
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2017_Shavkuta,
author = {Boris S. Shavkuta and M Y Gerasimov and N. V. Minaev and Daria S. Kuznetsova and Varvara Dudenkova and I A Mushkova and Boris Malyugin and Svetlana L Kotova and Petr S. Timashev and S V Kostenev and Boris N. Chichkov and V. N. Bagratashvili},
title = {Highly effective 525 nm femtosecond laser crosslinking of collagen and strengthening of a human donor cornea},
journal = {Laser Physics Letters},
year = {2017},
volume = {15},
publisher = {IOP Publishing},
month = {dec},
url = {https://doi.org/10.1088/1612-202X/aa963b},
number = {1},
pages = {15602},
doi = {10.1088/1612-202X/aa963b}
}
Cite this
MLA
Copy
Shavkuta, B. S., et al. “Highly effective 525 nm femtosecond laser crosslinking of collagen and strengthening of a human donor cornea.” Laser Physics Letters, vol. 15, no. 1, Dec. 2017, p. 15602. https://doi.org/10.1088/1612-202X/aa963b.