کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
740955 | 894208 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fast response photonic crystal pH sensor based on templated photo-polymerized hydrogel inverse opal
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fast response photonic crystal pH sensor based on templated photo-polymerized hydrogel inverse opal Fast response photonic crystal pH sensor based on templated photo-polymerized hydrogel inverse opal](/preview/png/740955.png)
چکیده انگلیسی
Polymer hydrogels can exhibit large reversible volume changes in response to external stimuli, and thus are regarded as excellent materials for chemical sensors. In this report, we demonstrate a mechanically robust and fast response photonic crystal pH sensor fabricated by templated photo-polymerization of hydrogel monomers within the interstitial space of a self-assembled colloidal photonic crystal. Throughout a rigorous optimization of the photo-polymerization, pH sensors showing a response time of less than 10 s upon a pH change were fabricated. Repeated pH changes revealed that the sensor has a long lifetime (>6 months) without degradation of the response time or reproducibility in pH-driven color change.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 150, Issue 1, 21 September 2010, Pages 183–190
Journal: Sensors and Actuators B: Chemical - Volume 150, Issue 1, 21 September 2010, Pages 183–190
نویسندگان
Jinsub Shin, Paul V. Braun, Wonmok Lee,