Optofluidic device for label-free cell classification from whole blood.
Optofluidic device for label-free cell classification from whole blood.
复制标题
用于全血无标记细胞分类的光流控装置。
DOI:
10.1039/c2lc40560a
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发表时间:
2012
期刊:
影响因子:
6.1
通讯作者:
Lo,Yu-Hwa
中科院分区:
文献类型:
--
作者:
Wu,Tsung-Feng;Mei,Zhe;Lo,Yu-Hwa
We demonstrated a unique optofluidic lab-on-a-chip device that can measure optically encoded forward scattering signals. From the design of the spatial pattern, we can measure the position and velocity of each cell in the flow and generate a 2-D cell distribution plot over the cross section of the channel. Moreover, we have demonstrated that the cell distribution is highly sensitive to its size and stiffness. The latter is an important biomarker for cell classification and our method offers a simple and unequivocal method to classify cells by their size and stiffness. We have proved the concept using live and fixed HeLa cells. Due to the stiffness and size difference of neutrophils compared to other types of white blood cells, we have demonstrated detection of neutrophils from other blood cells. Finally, we have performed the test using 5 μL of human blood. In a greatly simplified blood preparation process, skipping the usual steps of anticoagulation, centrifuge, antibody labelling or staining, filtering, etc., we have demonstrated that our device and detection principle can count neutrophils in whole human blood. Our system is compact, inexpensive and simple to fabricate and operate, having a commodity laser diode and a Si PIN photoreceiver as the main pieces of hardware. Although the results are still preliminary, the studies indicate that this optofluidic device holds promise to be a point-of-care and home care device to measure neutrophil concentration, which is the key indicator of the immune functions for cancer patients undergoing chemotherapy.
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DOI:
--
发表时间:
1986
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Macara,IG
通讯作者:
Macara,IG
影响因子:
4.1
作者:
R. Irvine;K. Brown;M. Berridge
通讯作者:
M. Berridge
影响因子:
3.5
作者:
G. l'Allemain;J. Pouysségur
通讯作者:
J. Pouysségur
DOI:
10.1016/s0021-9258(17)39459-0
发表时间:
1985-07
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
S. Sawyer;S. Cohen
通讯作者:
S. Sawyer;S. Cohen
影响因子:
4.8
作者:
P. Rothenberg;L. Glaser;P. Schlesinger;D. Cassel
通讯作者:
D. Cassel