caa a22 4500 605480192 CHVBK 20210128100414.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s10544-015-0004-4 doi (NATIONALLICENCE)springer-10.1007/s10544-015-0004-4 Particle-based optical pressure sensors for 3D pressure mapping [Elektronische Daten] [Niladri Banerjee, Yan Xie, Sandeep Chalaseni, Carlos Mastrangelo] This paper presents particle-based optical pressure sensors for in-flow pressure sensing, especially for microfluidic environments. Three generations of pressure sensitive particles have been developed- flat planar particles, particles with integrated retroreflectors and spherical microballoon particles. The first two versions suffer from pressure measurement dependence on particles orientation in 3D space and angle of interrogation. The third generation of microspherical particles with spherical symmetry solves these problems making particle-based manometry in microfluidic environment a viable and efficient methodology. Static and dynamic pressure measurements have been performed in liquid medium for long periods of time in a pressure range of atmospheric to 40psi. Spherical particles with radius of 12μm and balloon-wall thickness of 0.5μm are effective for more than 5h in this pressure range with an error of less than 5%. Springer Science+Business Media New York, 2015 Particle imaging manometry nationallicence Optical pressure sensor nationallicence Microfluidics nationallicence MEMS nationallicence Dynamic pressure mapping nationallicence Banerjee Niladri Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA aut Xie Yan Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA aut Chalaseni Sandeep Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA aut Mastrangelo Carlos Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA aut Biomedical Microdevices Springer US; http://www.springer-ny.com 17/5(2015-10-01), 1-12 1387-2176 17:5<1 2015 17 10544 https://doi.org/10.1007/s10544-015-0004-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10544-015-0004-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Banerjee Niladri Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA aut NATIONALLICENCE 700 1- Xie Yan Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA aut NATIONALLICENCE 700 1- Chalaseni Sandeep Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA aut NATIONALLICENCE 700 1- Mastrangelo Carlos Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA aut NATIONALLICENCE 773 0- Biomedical Microdevices Springer US; http://www.springer-ny.com 17/5(2015-10-01), 1-12 1387-2176 17:5<1 2015 17 10544