Nanocapillary array membrane

A nanocapillary array membrane was sandwiched between two PDMS layers to achieve pre-concentration (see Figure 5.14) [591]. The array is a PC nuclear-track etched (PCTE) membrane. The membrane is 10 pm thick, and consists of 200-nm pores which are coated with PVP. Before use, the array was condi-... 

FIGURE 5.14 (a) Schematic of a three-dimensional gated-injection separation device consisting of two crossed microfluidic channels with a PCTE membrane interconnect, (b) Electrical bias configurations for active electrokinetic injection control. (Right) Nanocapillary array gated injections. (Left) Main channel separations [591]. Reprinted with permission from the American Chemical Society. 

Wang Z, King TL, Branagan SP et al (2009) Enzymatic activity of surface-immobilized horseradish peroxidase confined to micrometer-to nanometer-scale structures in nanocapillary array membranes. Analyst 134 851-859... 

Gatimu EN et al (2007) Three-dimensional integrated microfluidic architectures enabled through electrically switchable nanocapillary array membranes. Biomicrofluidics 1(2) 021502. doi 10.1063/1.2732208... 

Lokuge, L, Wang, X., Bohn, P. W. 2007. Temperature-controlled flow switching in nanocapillary array membranes mediated by poly(N-isopropylacrylamide) polymer brushes grafted by atom transfer radical polymerization, 23 305-311. 

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