TY - JOUR
T1 - Surface acoustic wave (SAW) sensor for volatile organic compounds (VOCs) detection with calix[4]arene functionalized Gold nanorods (AuNRs) and silver nanocubes (AgNCs)
AU - Kus, Funda
AU - Altinkok, Cagatay
AU - Zayim, Esra
AU - Erdemir, Serkan
AU - Tasaltin, Cihat
AU - Gurol, Ilke
N1 - Publisher Copyright:
© 2020
PY - 2021/3/1
Y1 - 2021/3/1
N2 - The detection of chemicals in gas-phase has been employed in a wide variety of applications, including indoor air quality and environmental monitoring, chemical and biochemical processing, and medical diagnostics such as lung cancer screening. In this study, gold nanorod (AuNR) and silver nanocube (AgNC) molecules were functionalized with thiol (S- terminal) containing Calix[4]arene and were investigated for their molecular recognition properties on surface acoustic wave (SAW) transducer device surfaces. These novel sensing materials on transducer SAW device were investigated for the detection of polar (acetone, ethanol, chloroform, and humidity) and nonpolar (n-hexane, toluene, isoprene) volatile organic compounds (VOCs), among which are key markers for disease diagnosis, such as toluene present in exhaled breath of lung cancer patients. Sensor responses were discussed under various concentration levels in terms of selectivity, sensitivity, limit of detection, and response time. After AuNR and AgNC modification with Calix[4]arene, sensitivity of sensors has reached up to six to eight-fold higher than the individual responses, with a selectivity towards chloroform and toluene, respectively.
AB - The detection of chemicals in gas-phase has been employed in a wide variety of applications, including indoor air quality and environmental monitoring, chemical and biochemical processing, and medical diagnostics such as lung cancer screening. In this study, gold nanorod (AuNR) and silver nanocube (AgNC) molecules were functionalized with thiol (S- terminal) containing Calix[4]arene and were investigated for their molecular recognition properties on surface acoustic wave (SAW) transducer device surfaces. These novel sensing materials on transducer SAW device were investigated for the detection of polar (acetone, ethanol, chloroform, and humidity) and nonpolar (n-hexane, toluene, isoprene) volatile organic compounds (VOCs), among which are key markers for disease diagnosis, such as toluene present in exhaled breath of lung cancer patients. Sensor responses were discussed under various concentration levels in terms of selectivity, sensitivity, limit of detection, and response time. After AuNR and AgNC modification with Calix[4]arene, sensitivity of sensors has reached up to six to eight-fold higher than the individual responses, with a selectivity towards chloroform and toluene, respectively.
KW - Calix[4]arene
KW - E-nose
KW - Gas sensor
KW - Lung cancer
KW - Surface acoustic wave (SAW)
KW - Volatile organic compounds (VOC)
UR - http://www.scopus.com/inward/record.url?scp=85098550886&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2020.129402
DO - 10.1016/j.snb.2020.129402
M3 - Article
AN - SCOPUS:85098550886
SN - 0925-4005
VL - 330
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
M1 - 129402
ER -
