Stretchable, Wireless Sensors and Functional Substrates for Epidermal Characterization of Sweat
-
- Xian Huang
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- Yuhao Liu
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- Kaile Chen
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- Woo‐Jung Shin
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- Ching‐Jui Lu
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- Gil‐Woo Kong
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- Dwipayan Patnaik
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- Sang‐Heon Lee
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- Jonathan Fajardo Cortes
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
-
- John A. Rogers
- University of Illinois at Urbana‐Champaign Frederick Seitz Materials Research Laboratory 104 S. Goodwin Ave Urbana IL 61801 USA
書誌事項
- 公開日
- 2014-04-06
- 権利情報
-
- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
-
- 10.1002/smll.201400483
- 公開者
- Wiley
この論文をさがす
説明
<jats:p>This paper introduces materials and architectures for ultrathin, stretchable wireless sensors that mount on functional elastomeric substrates for epidermal analysis of biofluids. Measurement of the volume and chemical properties of sweat via dielectric detection and colorimetry demonstrates some capabilities. Here, inductively coupled sensors consisting of LC resonators with capacitive electrodes show systematic responses to sweat collected in microporous substrates. Interrogation occurs through external coils placed in physical proximity to the devices. The substrates allow spontaneous sweat collection through capillary forces, without the need for complex microfluidic handling systems. Furthermore, colorimetric measurement modes are possible in the same system by introducing indicator compounds into the depths of the substrates, for sensing specific components (OH<jats:sup>−</jats:sup>, H<jats:sup>+</jats:sup>, Cu<jats:sup>+</jats:sup>, and Fe<jats:sup>2+</jats:sup>) in the sweat. The complete devices offer Young's moduli that are similar to skin, thus allowing highly effective and reliable skin integration without external fixtures. Experimental results demonstrate volumetric measurement of sweat with an accuracy of 0.06 μL/mm<jats:sup>2</jats:sup> with good stability and low drift. Colorimetric responses to pH and concentrations of various ions provide capabilities relevant to analysis of sweat. Similar materials and device designs can be used in monitoring other body fluids.</jats:p>
収録刊行物
-
- Small
-
Small 10 (15), 3083-3090, 2014-04-06
Wiley
