The influence of polydimethylsiloxane curing ratio on capillary pressure in microfluidic devices
| العنوان: | The influence of polydimethylsiloxane curing ratio on capillary pressure in microfluidic devices |
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| المؤلفون: | Michele Manca, Antonietta Taurino, Valentina Arima, Antonella Zacheo, Barbara Cortese, Antonino S. Aricò, Ross Rinaldi, Ilenia Viola, Giuseppe Gigli, A. Zocco |
| المساهمون: | Ilenia, Viola, Antonella, Zacheo, Valentina, Arima, Antonino S., Aricò, Barbara, Cortese, Michele, Manca, Anna, Zocco, Antonietta, Taurino, Rinaldi, Rosaria, Giuseppe, Gigli |
| المصدر: | Applied surface science 258 (2012): 8032–8039. doi:10.1016/j.apsusc.2012.04.164 info:cnr-pdr/source/autori:Viola, Ilenia; Zacheo, Antonella; Arima, Valentina; Aricò, Antonino Salvatore; Cortese, Barbara; Manca, Michele; Zocco, Anna; Taurino, Antonietta; Rinaldi, R.; Gigli, Giuseppe/titolo:The influence of polydimethylsiloxane curing ratio on capillary pressure in microfluidic devices/doi:10.1016%2Fj.apsusc.2012.04.164/rivista:Applied surface science/anno:2012/pagina_da:8032/pagina_a:8039/intervallo_pagine:8032–8039/volume:258 |
| بيانات النشر: | Elsevier BV, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Capillary pressure, Materials science, Microfluidics, General Physics and Astronomy, Nanotechnology, engineering.material, law.invention, chemistry.chemical_compound, Coating, PDMS, law, XPS, Lab-on-chip, Fluidics, Composite material, Microchannel, Polydimethylsiloxane, Surfaces and Interfaces, General Chemistry, Lab-on-a-chip, Condensed Matter Physics, Surfaces, Coatings and Films, chemistry, Wettability, engineering, Wetting |
| الوصف: | Investigations on surface properties of poly(dimethylsiloxane) (PDMS) are justified by its large application ranges especially as coating polymer in fluidic devices. At a micrometer scale, the liquid dynamics is strongly modified by interactions with a solid surface. A crucial parameter for this process is microchannel wettability that can be tuned by acting on surface chemistry and topography. In literature, a number of multi-step, time and cost consuming chemical and physical procedures are reported. Here we selectively modify both wetting and mechanical properties by a single step treatment. Changes of PDMS surface were investigated by X-ray photoelectron spectroscopy and atomic force microscopy and the effects of interface properties on the liquid displacement inside a microfluidic system were evaluated. The negative capillary pressure obtained tailoring the PDMS wettability is believed to be promising to accurately control sample leakage inside integrated lab-on-chip by acting on the liquid confinement and thus to reduce the sample volume, liquid drying as well as cross-contamination during the operation. © 2012 Elsevier B.V. All rights reserved. |
| وصف الملف: | STAMPA |
| تدمد: | 0169-4332 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e3941ad82aac05afe932f293aff5adfTest https://doi.org/10.1016/j.apsusc.2012.04.164Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....7e3941ad82aac05afe932f293aff5adf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 01694332 |
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