Fabrication of PDMS Microchannels with Round Profiles Using Glycerol Molds

Autor:	Hangbo Zhao, Xiong Ying Ye, Min Du, Zhao Ying Zhou
Rok vydání:	2011
Předmět:	Materials science Fabrication Mechanical Engineering Microfluidics technology industry and agriculture Nanotechnology medicine.disease_cause Soft lithography chemistry.chemical_compound Chemical engineering chemistry Mechanics of Materials Mold medicine Glycerol General Materials Science
Zdroj:	Key Engineering Materials. 483:345-349
ISSN:	1662-9795
DOI:	10.4028/www.scientific.net/kem.483.345
Popis:	Poly(dimethylsiloxane) (PDMS) based soft lithography has been widely used to make microfluidic devices, while the cross-sections of the microchannels using the solid molds are mostly rectangle. We present a method for fabricating PDMS channels with a round profile, which utilizes hydrophilic/hydrophobic modification of substrates and glycerol molds. The glycerol mold was formed by letting glycerol stay on the patterned hydrophilic area surrounded by hydrophobic area. The different aspect ratios of the profiles were realized using different hydrophilic/hydrophobic modifications with small channel widths. The round profile channels with 10%-30% aspect ratios were obtained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5f0ababb82bdc1e5b78adb104fec7e30 https://doi.org/10.4028/www.scientific.net/kem.483.345 Zobrazit plný text záznamu