کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
750971 | 895185 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-precision interferometric monitoring of polymer swelling using a simple optofluidic sensor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Swelling of poly-methylmethacrylate (PMMA) in weak solvents—water, ethanol, and methanol was investigated by interferometry using a simple microfluidic sensor. A change of channel width by ±10 nm, comparable with the surface roughness of the polymer surface, is reliably detected and its temporal evolution was monitored in situ. Dynamics of polymer swelling over time periods from a few seconds to a few days were obtained. An optimized inexpensive microfluidic sensor design using hot embossing with gold sputtering is presented. Such a sensor can be used for high-fidelity adsorption–desorption interferometric sensing and its cost can be optimized for a single use.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 159, Issue 1, 28 November 2011, Pages 39–43
Journal: Sensors and Actuators B: Chemical - Volume 159, Issue 1, 28 November 2011, Pages 39–43
نویسندگان
Gediminas Gervinskas, Daniel Day, Saulius Juodkazis,