Research output: Contribution to journal › Article › peer-review
Dual-wavelength angle-resolved light scattering used in the analysis of particles by scanning flow cytometry. / Yastrebova, Ekaterina S.; Litvinenko, Alena L.; Strokotov, Dmitry I. et al.
In: Journal of Optics (United Kingdom), Vol. 23, No. 10, 105606, 10.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Dual-wavelength angle-resolved light scattering used in the analysis of particles by scanning flow cytometry
AU - Yastrebova, Ekaterina S.
AU - Litvinenko, Alena L.
AU - Strokotov, Dmitry I.
AU - Vladimirov, Roman S.
AU - Gilev, Konstantin V.
AU - Nekrasov, Vyacheslav M.
AU - Karpenko, Andrey A.
AU - Maltsev, Valeri P.
N1 - Publisher Copyright: © 2021 IOP Publishing Ltd.
PY - 2021/10
Y1 - 2021/10
N2 - For the first time, a scanning flow cytometer (SFC) was applied for the analysis of individual particles using angle-resolved light scattering at two wavelengths simultaneously. The SFC was equipped with three lasers with wavelengths of 405, 444 and 660 nm. The performance of dual-wavelength angle-resolved light-scattering (DWARLS) flow cytometry was demonstrated by the analysis of polymer beads, spherized red blood cells (RBCs) and blood platelets. The main advantage of dual-wavelength flow cytometry relates to an increment in the precision of the inverse light-scattering problem solution. The solution allows one to retrieve the characteristics of individual particles by measuring the light-scattering profiles of these particles. DWARLS has allowed us to measure diameters and refractive indices (RIs) of polystyrene beads with record precision: a median error of 12 nm and a few thousandths for diameter and RI, respectively. Analysis of spherized RBCs with DWARLS flow cytometry has provided record precision in the sizing of spherized RBCs, with a median error of 16 nm for diameter, and an adequate value of the specific refraction increment for hemoglobin. By means of DWARLS, we have formed a numerical criterion for shape separation of blood platelets, which can be described by an oblate spheroid model to increase the precision of the distribution parameters of the platelet fractions.
AB - For the first time, a scanning flow cytometer (SFC) was applied for the analysis of individual particles using angle-resolved light scattering at two wavelengths simultaneously. The SFC was equipped with three lasers with wavelengths of 405, 444 and 660 nm. The performance of dual-wavelength angle-resolved light-scattering (DWARLS) flow cytometry was demonstrated by the analysis of polymer beads, spherized red blood cells (RBCs) and blood platelets. The main advantage of dual-wavelength flow cytometry relates to an increment in the precision of the inverse light-scattering problem solution. The solution allows one to retrieve the characteristics of individual particles by measuring the light-scattering profiles of these particles. DWARLS has allowed us to measure diameters and refractive indices (RIs) of polystyrene beads with record precision: a median error of 12 nm and a few thousandths for diameter and RI, respectively. Analysis of spherized RBCs with DWARLS flow cytometry has provided record precision in the sizing of spherized RBCs, with a median error of 16 nm for diameter, and an adequate value of the specific refraction increment for hemoglobin. By means of DWARLS, we have formed a numerical criterion for shape separation of blood platelets, which can be described by an oblate spheroid model to increase the precision of the distribution parameters of the platelet fractions.
KW - blood platelets
KW - characterization
KW - flow cytometry
KW - hemoglobin
KW - inverse problem
KW - light scattering
KW - red blood cells
UR - http://www.scopus.com/inward/record.url?scp=85116921005&partnerID=8YFLogxK
U2 - 10.1088/2040-8986/ac1b7b
DO - 10.1088/2040-8986/ac1b7b
M3 - Article
AN - SCOPUS:85116921005
VL - 23
JO - Journal of optics
JF - Journal of optics
SN - 2040-8978
IS - 10
M1 - 105606
ER -
ID: 34400931