TY - JOUR
T1 - Mechanistic Approach for Long-Term Stability of a Polyethylene Glycol–Carbon Black Nanocomposite Sensor
AU - Li, Wenjun
AU - Nagashima, Kazuki
AU - Hosomi, Takuro
AU - Wang, Chen
AU - Hanai, Yosuke
AU - Nakao, Atsuo
AU - Shunori, Atsushi
AU - Liu, Jiangyang
AU - Zhang, Guozhu
AU - Takahashi, Tsunaki
AU - Tanaka, Wataru
AU - Kanai, Masaki
AU - Yanagida, Takeshi
N1 - Funding Information:
This work was supported by the Cooperative Research Program of “Network Joint Research Center for Materials and Devices,” KAKENHI (Grant Numbers JP18H01831, JP18KK0112, JP18H05243, and JP20H02208) and CAS-JSPS Joint Research Projects (Grant No. JPJSBP120187207). K.N. and T.H. were supported by the MEXT Project of “Integrated Research Consortium on Chemical Sciences.” T.Y. was supported by CREST (Grant No. JPMJCR19I2) and Mirai R&D of Japan Science and Technology Corporation (J.S.T.). K.N. was supported by JST PRESTO (Grant No. JPMJPR19J7). K.N. acknowledges the JACI Prize for Encouraging Young Researcher. This work was partly performed under the Cooperative Research Program of “Dynamic Alliance for Open Innovation Bridging Human, Environment, and Materials” and “CORE Lab of Network Joint Research Center for Materials and Devices.”
Publisher Copyright:
© 2021 American Chemical Society
PY - 2022/1/28
Y1 - 2022/1/28
N2 - Polymer–carbon nanocomposite sensor is a promising molecular sensing device for electronic nose (e-nose) due to its printability, variety of polymer materials, and low operation temperature; however, the lack of stability in an air environment has been an inevitable issue. Here, we demonstrate a design concept for realizing long-term stability in a polyethylene glycol (PEG)–carbon black (CB) nanocomposite sensor by understanding the underlying phenomena that cause sensor degradation. Comparison of the sensing properties and infrared spectroscopy on the same device revealed that the oxidation-induced consumption of PEG is a crucial factor for the sensor degradation. According to the mechanism, we introduced an antioxidizing agent (i.e., ascorbic acid) into the PEG–CB nanocomposite sensor to suppress the PEG oxidation and successfully demonstrated the long-term stability of sensing properties under an air environment for 30 days, which had been difficult in conventional polymer–carbon nanocomposite sensors.
AB - Polymer–carbon nanocomposite sensor is a promising molecular sensing device for electronic nose (e-nose) due to its printability, variety of polymer materials, and low operation temperature; however, the lack of stability in an air environment has been an inevitable issue. Here, we demonstrate a design concept for realizing long-term stability in a polyethylene glycol (PEG)–carbon black (CB) nanocomposite sensor by understanding the underlying phenomena that cause sensor degradation. Comparison of the sensing properties and infrared spectroscopy on the same device revealed that the oxidation-induced consumption of PEG is a crucial factor for the sensor degradation. According to the mechanism, we introduced an antioxidizing agent (i.e., ascorbic acid) into the PEG–CB nanocomposite sensor to suppress the PEG oxidation and successfully demonstrated the long-term stability of sensing properties under an air environment for 30 days, which had been difficult in conventional polymer–carbon nanocomposite sensors.
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U2 - 10.1021/acssensors.1c01875
DO - 10.1021/acssensors.1c01875
M3 - Article
C2 - 34788009
AN - SCOPUS:85120006311
SN - 2379-3694
VL - 7
SP - 151
EP - 158
JO - ACS Sensors
JF - ACS Sensors
IS - 1
ER -