An electrochemical dopamine sensor based on RF magnetron sputtered TiO_2/SS thin film electrode

摘要

Titanium Dioxide (TiO2) coated Stainless Steel (SS) thin film (TiO2/SS) as electrochemical Dopamine (DA) sensing electrode materials are synthesized via a Radio Frequency Magnetron Sputtering (RFMS) method. TiO2 nanomaterial is uniformly dispersed on the surface of SS, thus enhancing the electronic conductivity and preventing the aggregation of TiO2/SS thin film. The TiO2/SS thin film exhibit good efficiency which is 0.0219 +/- 0.01 & micro;A/& micro;M for the linear range of 50 & micro;M & ndash; 450 & micro;M with a detection limit of 23 nM.