Microfluidic
devices for MDA. (a) Micro-chamber MDA. A photograph of the single
cell isolation and amplification chip. The fluidic chamber and channels are filled
with blue dye and the control lines were filled with red dyes. Reprinted with
permission from Marcy et al., PLoS Genet. 3(9),
1702–1708 (2007). Copyright 2007 PLOS. (b) Droplet MDA. The single
cell is lysed in a tube and mixed with MDA reagents. The mixture is either directly
used for conventional MDA or used to generate droplets in a
microfluidic
device. Reprinted with permission from Lan et
al., Nat. Commun. 7, 11784 (2016). Copyright 2016 Macmillan
Publishers Ltd. (c) Micro-well MDA (MIDAS). Each MIDAS chip contains 16 arrays of
255 micro-wells. The diluted cells are loaded in the microwells. Lysis solution,
denaturing buffer, neutralization buffer, and MDA master mix are added to the
microwells in sequence. The amplification procedure is monitored based on the
growth of fluorescence. The amplicons are extracted for sequencing library
construction. Reprinted with permission from Gole et al., Nat.
Biotechnol. 31(12), 1126–1132 (2013). Copyright 2013 Macmillan
Publishers Ltd.