Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/105830
Author(s): | J. Carneiro E. Doutel J. B. L. M. Campos J. M. Miranda |
Title: | PDMS droplet formation and characterization by hydrodynamic flow focusing technique in a PDMS square microchannel |
Issue Date: | 2016 |
Abstract: | This study reports the generation of polydimethylsiloxane (PDMS) droplets by hydrodynamic flow focusing technique in a PDMS square microchannel. The droplet generation was characterized and a flow regime map addressed by the capillary numbers of each phase was assembled. Different flow regimes were found-dripping, jetting, threading and viscous displacement and the respective boundaries were sketched. Droplet size, breakup distance and formation frequency were analysed and quantified for the jetting and dripping regimes. The dripping regime showed better results for droplet formation, leading to the highest throughput of monodisperse droplets: formation frequency of approximate to 12 Hz and droplets almost uniform in size (2.8% the coefficient of variance). The qualitative analysis and quantitative measurement of the different variables and their correlation within a capillary dependent regime map proved to be an invaluable tool to study droplet formation by hydrodynamic flow focusing technique in a PDMS square microchannel. |
URI: | https://hdl.handle.net/10216/105830 |
Related Information: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/P2020|COMPETE - Projetos em Todos os Domínios Científicos/PTDC/QEQ-FTT/4287/2014 - POCI-01-0145-FEDER-016861/Novos fluidos biomiméticos para aplicações biomédicas/PTDC/QEQ-FTT/4287/2014|16861 info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/PEst-OE/EME/UI0532/2013/PROJECTO ESTRATÉGICO - UI 532 - 2013-2014/UI0532 info:eu-repo/grantAgreement/Autoriadade de Gestão do Programa Operacional Regional do Norte/Programas Integrados de IC&DT/NORTE-07-0124-FEDER-000025/(Bio) Chemical Engineering: Multi-Scale Approaches for Sustainable Environment and Health/LEPAE/CEFT - RL2 |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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202328.pdf Restricted Access | artigo original publicado | 1.06 MB | Adobe PDF | Request a copy from the Author(s) |
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