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Solid State Nitric Oxide Sensor Using a Latex Rubber Matrix
Author(s) -
Herculano R. D.,
Brunello C. A.,
Graeff C. F. O.
Publication year - 2006
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200651376
Subject(s) - natural rubber , materials science , electron paramagnetic resonance , biocompatibility , polymerization , matrix (chemical analysis) , fabrication , chemical engineering , detection limit , composite material , polymer , chemistry , nuclear magnetic resonance , chromatography , metallurgy , medicine , physics , alternative medicine , pathology , engineering
In this work we propose a sensor made of a spin trap (iron(II)‐diethyldithiocarbamate complex, FeDETC) encapsulated in a latex rubber matrix. Latex was used as solid matrix due to its excellent mechanical properties, biocompatibility and natural angiogenic properties. The fabrication and optimization processes were done by varying: FeCl 3 6H 2 O and DETC concentrations in the system, polymerization temperature, FeDETC/latex ratio. The sensor presents high stability, the observed Electron Paramagnetic Resonance signal can be detected even after the sensor is exposed to ambient atmosphere for 40 days. It can be reused and is able to measure NO concentration as low as 0,1 mM. These results make NO‐FeDETC in the rubber matrix a promising NO sensor.