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2017 ; 7
(1
): 11385
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Rapid Staining of Circulating Tumor Cells in Three-Dimensional Microwell Dialysis
(3D-?Dialysis) Chip
#MMPMID28900219
Cho W
; Pradhan R
; Chen HY
; Weng YH
; Chu HY
; Tseng FG
; Lin CP
; Jiang JK
Sci Rep
2017[Sep]; 7
(1
): 11385
PMID28900219
show ga
The conventional techniques to detect circulating tumour cells (CTCs) are lengthy
and the use of centrifugal forces in this technique may cause cell mortality. As
the number of CTCs in patients is quite low, the present study aims towards a
gentler diagnostic procedure so as not to lose too many CTCs during the sample
preparation process. Hence, a Three-Dimensional Microwell dialysis (3D-?Dialysis)
chip was designed in this study to perform gentle fluorescence-removal process by
using dialysis-type flow processes without centrifuging. This leads to a minimum
manual handling of CTCs obtained in our study without any contamination. In
addition, a rapid staining process which necessitates only about half the time of
conventional techniques (35?minutes instead of 90?minutes) is being illustrated
by the employment of dialysis process (by dynamically removing water and waste at
once) instead of only static diffusion (by statically removing only waste by
diffusion). Staining efficiency of our technique is improved over conventional
staining because of the flow rate in 3D-?Dialysis staining. Moreover, the
staining process has been validated with clinical whole blood samples from three
TNM stage IV colon cancer patients. The current technique may be termed as
"miniature rapid staining and dialysing system".