Counting leukocytes from whole blood using a lab-on-a-chip Coulter counter.
Counting leukocytes from whole blood using a lab-on-a-chip Coulter counter.
复制标题
使用芯片实验室库尔特计数器对全血中的白细胞进行计数。
DOI:
10.1109/embc.2012.6347429
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Lo,Yu-Hwa
中科院分区:
文献类型:
--
作者:
Mei,Zhe;Cho,SungHwan;Zhang,Arthur;Dai,Jie;Wu,Tsung-Feng;Lo,Yu-Hwa
A microfluidic lab-on-a-chip Coulter counter was demonstrated to count micro particles and leukocytes from whole blood. Instead of electroplated or deposited metal electrodes, off-the-shelf gold pins were used as electrodes to simplify fabrication process, reduce cost, enhance device durability, and above all, achieve superior uniformity in E-field distribution for improved signal quality. A custom-designed, low-cost demodulation circuit was developed to detect the AC impedance signals of the particles and cells passing the detection area defined by the microfluidic channels. A mixture of polystyrene beads with three different sizes was used to characterize the device. The results showed high throughput at 2000 particles/s and clear separation among different sizes of beads with coefficients of variation (CV) of 13.53%, 10.35% and 5.67% for 7.66μm, 10.5μm and 14.7μmbeads, respectively. To demonstrate the potential for a point-of-care or self-administered device for cancer patients going through chemotherapy, we have used the lab-on-a-chip device to count leukocytes from whole blood, generating encouraging preliminary results comparable to the results from a commercial flow cytometer.
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影响因子:
64.5
作者:
S. R. Hann;H. Abrams;L. Rohrschneider;R. Eisenman
通讯作者:
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影响因子:
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作者:
DOOLITTLE, RF;HUNKAPILLER, MW;ANTONIADES, HN
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ANTONIADES, HN
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作者:
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作者:
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5.4
作者:
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通讯作者:
SHERR, CJ