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Micromachined multi‐parameter sensor chip for the control of polymer‐degradation medium
Author(s) -
Leinhos Marcel,
Schusser Sebastian,
Bachmann Bernd,
Bäcker Matthias,
Poghossian Arshak,
Schöning Michael J.
Publication year - 2014
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201330364
Subject(s) - degradation (telecommunications) , materials science , electrolyte , polymer , capacitive sensing , electrode , polymer degradation , chip , conductivity , conductive polymer , nanotechnology , optoelectronics , electronic engineering , electrical engineering , chemistry , composite material , engineering
It is well known that the degradation environment can strongly influence the biodegradability and kinetics of biodegradation processes of polymers. Therefore, besides the monitoring of the degradation process, it is also necessary to control the medium in which the degradation takes place. In this work, a micromachined multi‐parameter sensor chip for the control of the polymer‐degradation medium has been developed. The chip combines a capacitive field‐effect pH sensor, a four‐electrode electrolyte‐conductivity sensor and a thin‐film Pt‐temperature sensor. The results of characterization of individual sensors are presented. In addition, the multi‐parameter sensor chip together with an impedimetric polymer‐degradation sensor was simultaneously characterized in degradation solutions with different pH and electrolyte conductivity. The obtained results demonstrate the feasibility of the multi‐parameter sensor chip for the control of the polymer‐degradation medium.