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Enhanced magneto-optical SPR platform for amine sensing based on Zn porphyrin dimers

AuthorsManera, Maria Grazia; Ferreiro-Vila, Elías ; García-Martín, José Miguel ; Cebollada, Alfonso ; García-Martín, Antonio ; Giancane, G.; Valli, L.; Rella, Roberto
KeywordsLangmuir–Schäfer technique
ZnPP porphyrin
Magneto-optical signal
Gas sensor
Issue DateJun-2013
CitationSensors and Actuators B: Chemical 182: 232-238 (2013)
AbstractEthane-bridged Zn porphyrins dimers (ZnPP) have been deposited by Langmuir-Schäfer (LS) deposition technique onto proper transducer layers for surface plasmon resonance (SPR) and magneto-optical surface plasmon resonance (MO-SPR) characterization techniques performed in controlled atmosphere. This last tool has emerged as a novel and very performing sensing technique using as transducer layers a combination of noble and magnetic layers deposited onto glass substrates. A magnetic actuation allows recording a magneto optical SPR signal which ensures best gas sensing performances in terms of signal to noise ratio, sensitivity and limit of detection parameters. Primary and secondary amines in vapour phase have been used as sensing analytes and a possible explanation of the mechanism as well as of the dynamics of the interaction with the sensing Zn Porphyrin layers is provided. © 2013 Elsevier B.V. All rights reserved.
Publisher version (URL)http://dx.doi.org/10.1016/j.snb.2013.02.057
Identifiersissn: 0925-4005
Appears in Collections:(IMN-CNM) Artículos
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