An inkjet printed Ag electrode fabricated on plastic substrate with a chemical sintering approach for the electrochemical sensing of hydrogen peroxide.

Citation:

Shi L, Layani M, Cai X, Zhao H, Magdassi S, Lan M. An inkjet printed Ag electrode fabricated on plastic substrate with a chemical sintering approach for the electrochemical sensing of hydrogen peroxide. Sens. Actuators, BSensors and Actuators, B: Chemical. 2018;256 :938 - 945.

Date Published:

2018///

Abstract:

The trend of developing electrochem. sensors toward cellular level detection put forward higher requirements of the electrodes in the detection performance. However, common disk electrodes or conventional screen printing electrodes meet up with some limitations in the electrocatalytic activity and electron transfer capability. In this work, we applied inkjet printing technol. to fabricate electrodes to make some improvements. Highly conductive Ag nanoparticles based electrodes were obtained on plastic substrate by inkjet printing technol. followed by a sintering process at room temp. The resistivity of IPAgE is detd. to be 64.0 ± 5.3 μΩ cm. With better cond. and the nanoparticle-based interface, superb electrochem. response of IPAgE for H2O2 was obtained, nearly 300-fold higher than the conventional screen printed Ag electrode. Moreover, high sensitivity of 287 μA mM-1 cm-2 with a LOD of 5.0 μM was obtained under the optimized 20 printed layers. The inkjet printed Ag electrodes were also credibly applied in the detection of H2O2 release from living cells. This work demonstrates inkjet printing is a promising method for the high performance electrochem. sensors. [on SciFinder(R)]

Notes:

CAPLUS AN 2017:1636630(Journal; Online Computer File)