Direct fabrication of nanofiber scaffolds in pillar-based microfluidic device by using electrospinning and picosecond laser pulses
| Autor: | Tien Li Chang, Chi Huang Huang, Shih Yen Chou, Shih-Feng Tseng, Ya Wei Lee |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Fabrication 010401 analytical chemistry Microfluidics Nanotechnology 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Laser 01 natural sciences Atomic and Molecular Physics and Optics Electrospinning 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Surface micromachining law Nanofiber Electrical and Electronic Engineering 0210 nano-technology Layer (electronics) Ultrashort pulse |
| Zdroj: | Microelectronic Engineering. 177:52-58 |
| ISSN: | 0167-9317 |
| DOI: | 10.1016/j.mee.2017.01.036 |
| Popis: | This study presents a direct fabrication process of nanofiber scaffolds within a pillar-based microfluidic device by using electrospinning and picosecond laser pulses. The picosecond laser irradiation source is a type of ultrafast laser, which facilitates adequately controlled processing in a glass microfluidic device at a wavelength of 355 nm. The required nanofiber scaffolds can be formed through electrospinning with an optimal maximum pore area of 8.4 μm2 at a concentration of 11 wt%. Subsequently, this study presents three types of pillar structures with nanofiber scaffolds in the microfluidic device. Self-organization of nanofibers can be achieved within the microfluidic device because of the incline structures. The nanofiber scaffolds were observed to fill the space between the pillars, including the side wall and bottom layer of the pillars and microfluidic device. This micromachining technique can be employed to fabricate downscaling patterned device structures for microfluidic applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect