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

fYear

2013

fDate

7-10 April 2013

Firstpage

203

Lastpage

206

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/NEMS.2013.6559715

Filename

6559715