Steffens C, Leite F L, Manzoli A, Sandovall R D, Fatibello O, Herrmann P S P
J Nanosci Nanotechnol. 2014 Sep;14(9):6718-22. doi: 10.1166/jnn.2014.9348.
This paper describes a silicon cantilever sensor coated with a conducting polymer layer. The mechanical response (deflection) of the bimaterial (the coated microcantilever) was investigated under the influence of several volatile compounds-methanol, ethanol, acetone, propanol, dichloroethane, toluene and benzene. The variations in the deflection of the coated and uncoated microcantilevers when exposed to volatile organic compounds were evaluated, and the results indicated that the highest sensitivity was obtained with the coated microcantilever and methanol. The uncoated microcantilever was not sensitive to the volatile organic compounds. An increase in the concentration of the volatile organic compound resulted in higher deflections of the microcantilever sensor. The sensor responses were reversible, sensible, rapid and proportional to the volatile concentration.
本文描述了一种涂覆有导电聚合物层的硅悬臂梁传感器。研究了双材料（涂覆的微悬臂梁）在几种挥发性化合物——甲醇、乙醇、丙酮、丙醇、二氯乙烷、甲苯和苯的影响下的机械响应（挠度）。评估了涂覆和未涂覆的微悬臂梁在暴露于挥发性有机化合物时挠度的变化，结果表明涂覆的微悬臂梁对甲醇的灵敏度最高。未涂覆的微悬臂梁对挥发性有机化合物不敏感。挥发性有机化合物浓度的增加导致微悬臂梁传感器的挠度增大。传感器的响应是可逆的、灵敏的、快速的，并且与挥发性浓度成正比。
