کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
743013 | 894337 | 2010 | 6 صفحه PDF | دانلود رایگان |
The development of a novel polydiacetylene (PDA)-based sensitive colorimetric microarray sensor for the detection and identification of volatile organic compounds was reported. The organic solvent-dependent colorimetric responses of PDA-embedded polymer matrix had been investigated in detail, which allowed for a straight forward “color pattern” procedure to differentiate among common organic solvents. Further, multi-layer PDA-based micro patterns had been fabricated by a sol–gel process combined with the soft lithography method. The structures of multi-layer PDA-based micro patterns were characterized by scanning electron microscopy (SEM). The organic solvent-dependent fluorescence changes of PDA-based micro patterns had been investigated in detail. Excellent differentiation of organic compounds can be achieved based on cross-responsive array sensor and these systems aim to mimic the mammalian olfactory system by producing composite responses unique to each odorant.
Journal: Sensors and Actuators B: Chemical - Volume 143, Issue 2, 7 January 2010, Pages 789–794