In this study, a novel PDMS/silicon hybrid microfluidic biochip was fabricated and tested for the long-term batch culture of bacterial cells. The PDMS (poly(dimethylsiloxane)) cover with 3-dimensional micro-channels for flow was fabricated using Teflon tubing and hole-punch techniques, without ...
PDMS also presents low interfacial energy, which allows it to avoid chemical interactions with other polymers and solutions in the microfluidic channels. After polymerization and cross-linking, solid PDMS presents hydrophobic surface. A treatment using plasma oxidation is frequently used to alter the ...
This material, commonly known as PDMS, is widely used in the microfluidic field applications in order to create channels for fluid flow on the surface of a piezoelectric substrate. The size, and type of PDMS that is created and ultimately etched on the surface of the substrate, plays a ...
1.04.3.2.3 Microfluidic channels The method mentioned earlier has been adapted for constructing microfluidic channels using PDMS elastomers as the structural material (Effenhauser et al. 1997). Till then microfluidic devices were made of silicon and glass-based substrates (Harrison et al. 1993, Lian...
conditions: (1) restricted geometry of the microfluidic channels (i.e., shallow channel height, large diameter of obstacles and a short microchannel length); (2) operation in quasi-steady state flow; (3) increasing flow rates; and (4) decreasing amount of curing agent in the PDMS mixture....
Fabrication of channels in PDMS is simple, and it can be used to incorporate other materials and structures through encapsulation or sealing (both reversible and irreversible).关键词: organic chemistry, review technology of materials, lasers, semiconductors, superconductors ...
To demonstrate the improvement over previous iCVD nano-adhesive work34,35, we first fabricated a two-layer hybrid channel (PDMS top, NOA81 bottom) and injected toluene at the inlet of the bottom channel. When the toluene reached the PDMS substrate, the PDMS channels began to shrink dramati-...
2). The advantage of the fabrication technique presented here is that hydrophilic PDMS microfluidic channels can be obtained with a simple, one-step method through inexpensive bench-top methods. Table 3 Capillary-driven flow of hydrophilic PDMS channels with aqueous solutions. Full size table We ...
Disclosed herein is a surface functionalized poly(dimethylsiloxane) (PDMS) and methods for making the same. The surface functionalized poly(dimethylsiloxane) (PDMS) disclosed herein
channels. After polymerization and cross-linking, solid PDMS presents hydrophobic surface. A treatment using plasma oxidation is frequently used to alter the surface chemistry by adding silanol (SiOH) groups to the surface terminations and make the surface hydrophilic (wettable). PDMS is usually used...