Conjugated polymers sensors

Thin-film conjugated polymer sensors and aggregation 208... 

Designing a conjugated polymer sensor based on FQ, however, is not only a matter of making a fluorescent polymer for which the photoinduced electron transfer reaction is energetically favorable. There are other important factors that must be considered and requirements that must be met to rehably detect any analyte of interest, including TNT, from the vapor phase. In the broadest sense, these considerations distill to the two primary considerations for any sensing system, sensitivity and selectivity. 

Therefore, there are many considerations that must be taken into account in the design and synthesis of conjugated polymer sensors for explosive detection. Not only must the electron transfer process be efficient, but solid-state aggregation must also be avoided to retain maximum sensitivity. Strong binding of analyte to the polymer is necessary, which the 7l-acidic nature of TNT and DNT facilitate via... 

Chemical and Biological Sensors Current MEMS Chemical Sensor Principles Materials Selection Conjugated Polymer Sensors 14-13... 

Rahman MA, Kumar P, Park DS, Shim YB (2008) Electrochemical sensors based on organic conjugated polymers. Sensors 8 118... 

In this chapter, we have attempted to highlight examples of sensors based on conjugated polymers, in both the gas and the liquid phase. We have considered electrical and optical sensors and, in the case of the gas phase, a small number of mechanical sensors. The examples we chose serve not only to highlight the breadth of this field, but also to illustrate that the field is by no means saturated and that the field has evolved since its conception and indeed continues to evolve. Conjugated polymer sensors are becoming ever more sensitive, with lower detection limits and wider dynamic ranges, while improvements are also being made to the specificity and speed of detection. 

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