Finally, polymers have also been employed in a variety of morphologies but at lower frequencies than other materials in publications for sensors. The predominance of journal publications in general and for sensors may mean that the methods for polymer manipulation which are more common in industry may not be applicable to the use of polymers in nanomaterials; for example, the methods for manipulating polymers on larger scale may not be applicable to their manipulation at smaller scales. Nanofibers, however, show significant incorporation of PANI and polyvinyl pyrrolidinone. PANI is used as a conducting polymer but is sensitive to oxidation and reduction; hence its use as a conducting component in wire-like materials for sensors on the nanoscale is reasonable, while the ability to change conductivity may make it useful in sensing or in transducing sensing outputs.