Characterization of interfaces formed between thin, poly(l-lactic acid) polymer films and quartz crystal microbalance, sensor substrates with high frequency impedance analysis

2011 ◽  
Vol 169 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Athanasios Kakalis ◽  
Costas Panayiotou
Keyword(s):  
Lactic Acid ◽  
Quartz Crystal Microbalance ◽  
Polymer Films ◽  
High Frequency ◽  
Quartz Crystal ◽  
Impedance Analysis ◽  
Quartz Crystal Microbalance Sensor

Viscoelastic Characterization of Electrochemically Prepared Conducting Polymer Films by Impedance Analysis at Quartz Crystal

2006 ◽  
Vol 153 (7) ◽  
pp. C455 ◽  
Author(s):  
A. Arnau ◽  
Y. Jimenez ◽  
R. Fernández ◽  
R. Torres ◽  
M. Otero ◽  
...  
Keyword(s):  
Conducting Polymer ◽  
Polymer Films ◽  
Quartz Crystal ◽  
Impedance Analysis ◽  
Conducting Polymer Films

EQCM and Quartz Crystal Impedance Measurements for the Characterization of Thiophene-Based Conducting Polymers

1999 ◽  
Vol 600 ◽  
Author(s):  
C. Arbizzani ◽  
F. Soavi ◽  
M. Mastragostino
Keyword(s):  
Conducting Polymers ◽  
Polymer Films ◽  
Quartz Crystal ◽  
Impedance Analysis ◽  
Frequency Change ◽  
Impedance Measurements ◽  
Electronically Conducting Polymers ◽  
Frequency Response Analyzer ◽  
Conducting Polymer Films

AbstractEQCM was extensively used to investigate ion-transport phenomena during dopingundoping processes of electronically conducting polymers. Several early studies assumed that the polymer films were rigidly coupled to the quartz crystal so as to relate the mass change to the quartz crystal resonant frequency change via the Sauerbrey equation. However, the rigidity of electronically conducting polymer films is doubtful and it has to be demonstrated. Quartz crystal impedance analysis near the resonance is of paramount importance to get insight into the viscoelastic properties of the film [1] and to avoid misleading in the interpretation of EQCM data.This contribution presents and discusses quartz crystal impedance measurements, performed with a Frequency Response Analyzer in the 9MHz region, and EQCM data collected for a dithienothiophene based polymer.

Quartz Crystal Microbalance Sensor Using Ionophore for Ammonium Ion Detection

2012 ◽  
Vol 12 (1) ◽  
pp. 563-567 ◽  
Author(s):  
Yasuhiro Kosaki ◽  
Kosuke Takano ◽  
Daniel Citterio ◽  
Koji Suzuki ◽  
Seimei Shiratori
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Ammonium Ion ◽  
Ion Detection ◽  
Quartz Crystal Microbalance Sensor

scholarly journals Low-fouling CNT-PEG-hydrogel coated quartz crystal microbalance sensor for saliva glucose detection

RSC Advances ◽  
2021 ◽  
Vol 11 (37) ◽  
pp. 22556-22564
Author(s):  
Shiwen Wang ◽  
Guanjiang Liu ◽  
Bei Yang ◽  
Zifeng Zhang ◽  
Debo Hu ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Binding Sites ◽  
Quartz Crystal ◽  
Direct Detection ◽  
Glucose Detection ◽  
Hydrogel Film ◽  
Glucose Binding ◽  
Quartz Crystal Microbalance Sensor

We successfully achieved the direct detection of saliva glucose by a CNT-PEG-hydrogel. The top CNT-PEG layer provides channels for transporting glucose molecules and filters macromolecular impurities and the bottom base PBA-hydrogel film provides the glucose binding sites.

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