Type

Journal Article

Authors

Dmitri B Papkovsky
Olga V Arzhakova
Aleksandr Volynskii
Joseph P Kerry
Swagata Banerjee
Alla A Dolgova
Irina A Okkelman

Subjects

Chemistry

Topics
nanostructured materials oxygen detection materials sensors elastic materials films polypropylene

Phosphorescent Oxygen and Mechanosensitive Nanostructured Materials Based on Hard Elastic Polypropylene Films. (2017)

Abstract It is well known that sensitivity of quenched-phosphorescence O2 sensors can be tuned by changing the nature of indicator dye and host polymer acting as encapsulation and quenching mediums. Here, we describe a new type of sensor materials based on nanostructured hard elastic polymeric substrates. With the example of hard elastic polypropylene films impregnated with Pt-benzoporphyrin dye, we show that such substrates enable simple one-step fabrication of O2 sensors by standard and scalable polymer processing technologies. In addition, the resulting sensor materials show prominent response to tensile drawing via changes in phosphorescence intensity and lifetime and O2 quenching constant, Kq. The mechanosensitive response shows reversibility and hysteresis, which are related to macroscopic changes in the nanoporous structure of the polymer. Such multifunctional materials can find use as mechanically tunable O2 sensors, as well as strain/deformation sensors operating in a phosphorescence-lifetime-based detection mode.
Collections Ireland -> University College Cork -> PubMed

Full list of authors on original publication

Dmitri B Papkovsky, Olga V Arzhakova, Aleksandr Volynskii, Joseph P Kerry, Swagata Banerjee, Alla A Dolgova, Irina A Okkelman

Experts in our system

1
Dmitri B Papkovsky
University College Cork
Total Publications: 84
 
2
Olga V Arzhakova
University College Cork
Total Publications: 3
 
3
J P Kerry
University College Cork
Total Publications: 130
 
4
Alla Dolgova
University College Cork
Total Publications: 3
 
5
Irina A Okkelman
University College Cork
Total Publications: 8