PMID- 20877884 OWN - NLM STAT- MEDLINE DCOM- 20110113 LR - 20101110 IS - 1473-0197 (Print) IS - 1473-0189 (Linking) VI - 10 IP - 23 DP - 2010 Dec 7 TI - Microfluidic stretchable RF electronics. PG - 3227-34 LID - 10.1039/c005159d [doi] AB - Stretchable electronics is a revolutionary technology that will potentially create a world of radically different electronic devices and systems that open up an entirely new spectrum of possibilities. This article proposes a microfluidic based solution for stretchable radio frequency (RF) electronics, using hybrid integration of active circuits assembled on flex foils and liquid alloy passive structures embedded in elastic substrates, e.g. polydimethylsiloxane (PDMS). This concept was employed to implement a 900 MHz stretchable RF radiation sensor, consisting of a large area elastic antenna and a cluster of conventional rigid components for RF power detection. The integrated radiation sensor except the power supply was fully embedded in a thin elastomeric substrate. Good electrical performance of the standalone stretchable antenna as well as the RF power detection sub-module was verified by experiments. The sensor successfully detected the RF radiation over 5 m distance in the system demonstration. Experiments on two-dimensional (2D) stretching up to 15%, folding and twisting of the demonstrated sensor were also carried out. Despite the integrated device was severely deformed, no failure in RF radiation sensing was observed in the tests. This technique illuminates a promising route of realizing stretchable and foldable large area integrated RF electronics that are of great interest to a variety of applications like wearable computing, health monitoring, medical diagnostics, and curvilinear electronics. FAU - Cheng, Shi AU - Cheng S AD - Department of Engineering Sciences, Uppsala University, The Angstrom Laboratory, Box-534, SE-751 21, Uppsala, Sweden. FAU - Wu, Zhigang AU - Wu Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100929 PL - England TA - Lab Chip JT - Lab on a chip JID - 101128948 RN - 0 (Dimethylpolysiloxanes) RN - 63148-62-9 (baysilon) SB - IM MH - Biosensing Techniques MH - Cost-Benefit Analysis MH - Dimethylpolysiloxanes/chemistry MH - Elasticity MH - Electronics MH - Electronics, Medical MH - Equipment Design MH - *Microfluidic Analytical Techniques MH - Microfluidics MH - Radio Waves MH - Semiconductors MH - Telemetry/*instrumentation MH - Transducers EDAT- 2010/09/30 06:00 MHDA- 2011/01/14 06:00 CRDT- 2010/09/30 06:00 PHST- 2010/09/30 06:00 [entrez] PHST- 2010/09/30 06:00 [pubmed] PHST- 2011/01/14 06:00 [medline] AID - 10.1039/c005159d [doi] PST - ppublish SO - Lab Chip. 2010 Dec 7;10(23):3227-34. doi: 10.1039/c005159d. Epub 2010 Sep 29.