کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1164831 1491055 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laser-photophoretic migration and fractionation of human blood cells
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Laser-photophoretic migration and fractionation of human blood cells
چکیده انگلیسی


• RBCs were migrated faster than WBCs and blood pellets by laser photophoresis.
• Photophoretic efficiency of RBC and WBC was simulated by the Mie scattering theory.
• Spontaneous orientation of RBC parallel to the migration direction was elucidated.
• Laser photophoretic separation of RBC and WBC was possible in a tip flow system.

Laser photophoretic migration behavior of human blood cells in saline solution was investigated under the irradiation of Nd:YAG laser beam (532 nm) in the absence and the presence of the flow in a fused silica capillary. Red blood cells (RBC) were migrated faster than white blood cells (WBC) and blood pellets to the direction of propagation of laser light. The observed photophoretic velocity of RBC was about 11 times faster than those of others. This was understood from the larger photophoretic efficiency of RBC than that of WBC, which was simulated based on the Mie scattering theory. Furthermore, it was found that, during the photophoretic migration, RBCs spontaneously orientated parallel to the migration direction so as to reduce the drag force. Finally, it was demonstrated that RBC and WBC were separated in a micro-channel flow system by the laser photophoresis.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 777, 13 May 2013, Pages 86–90
نویسندگان
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