Title :
Characterization of fluid resistance in nanostructured TiO2 (NST) film
Author :
Li Nannan ; Chen Jing
Author_Institution :
Nat. Key Lab. of Micro/Nano Fabrication Technol., Peking Univ., Beijing, China
Abstract :
Embedded microchannels are required in many microfluidic devices. However, the channels may reduce the strength of the bulk substrate. In this study, Nanostructured TiO2(NST) material is proposed to provide the fluid passage for the drug into the required location while still maintains very good strength. A simple method was proposed to obtain the pressure drop over NST filled channel and the fluid resistance was experimentally determined. The Darcy´ equation of NST films was setup, and the permeability was measured 1.475×10-11 m2. With a relatively high fluid resistance, further optimization should be carried out for NST microfluidic devices.
Keywords :
drug delivery systems; flow through porous media; microchannel flow; microfluidics; nanostructured materials; needles; permeability; thin films; titanium compounds; Darcy equation; NST filled channel; NST films; NST microfluidic devices; TiO2; bulk substrate; drug; embedded microchannels; fluid passage; fluid resistance characterization; microfluidic devices; nanostructured film; permeability; pressure drop; strength reduction; Equations; Films; Fluids; Immune system; Mathematical model; Titanium; Aqueous Oixation; Fluid resiatance; NST; Porous microneedles; Pressure measurement;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems (NEMS), 2013 8th IEEE International Conference on
Conference_Location :
Suzhou
Electronic_ISBN :
978-1-4673-6351-8
DOI :
10.1109/NEMS.2013.6559715
