Design of microfluidic radionuclide sensors: Combining microscale 3D printing based on 2-photon polymerization with nanoscale polymer brush scintillators

V. N. Bliznyuk; N. V. Lavrik; A. F. Seliman; N. A. Derevyanko; A. A. Ishchenko; S. M. Husson; T. A. DeVol

doi:10.1016/j.reactfunctpolym.2022.105455

Design of microfluidic radionuclide sensors: Combining microscale 3D printing based on 2-photon polymerization with nanoscale polymer brush scintillators

V. N. Bliznyuk, N. V. Lavrik, A. F. Seliman, N. A. Derevyanko, A. A. Ishchenko, S. M. Husson, T. A. DeVol

Nanofabrication Research Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

Development of miniature sensors for radionuclides is a challenging goal. In this paper we have applied specially developed vinyl-functionalized organic fluorophores for fabrication of nanoscale polymer brush scintillator coatings on artificially created 3D mesoporous structures. The applied 3D printing based on 2-photon polymerization is a modern approach, which extends the concept of additive manufacturing to the micro/nano-scale. One of the fundamental limitations of the 3D printing based on 2-photon polymerization (2PP) is a limited range of suitable photo-resins and, thus, limited functionalities of the resulting structures. To address this challenge, various post-processing technological steps, such as overcoating with conformal oxide layers and/or pyrolysis have been suggested. In this study, we demonstrate how chemical modification of 3D printed polymer structures with nanoscale polymer brush scintillators can be applied as a viable technological strategy for microfluidic radionuclide sensors. Application of new polymerizable organic fluorophores allowed “grafting to” or “grafting from” modifications of the photoresist surface with high concentration and precisely controlled location of the active scintillating units within the coating.

Original language	English
Article number	105455
Journal	Reactive and Functional Polymers
Volume	181
DOIs	https://doi.org/10.1016/j.reactfunctpolym.2022.105455
State	Published - Dec 2022

Funding

This work was supported in part by the Department of Energy National Nuclear Security Administration Stewardship Science Academic Alliances #DE-NA-0002920 grant to Clemson University and by the Defense Threat Reduction Agency, Basic Research Award #HDTRA1-16-1-0016 to Clemson University. We thank Dr. Perry Pellechia (University of South Carolina), for help with solid state NMR studies, Dr. George Chumanov (Clemson University) for help with fluorescence spectroscopy experiments. S.M.H acknowledges support from the William B. “Bill” Sturgis, ‘57 and Martha Elizabeth “Martha Beth” Blackmon Sturgis Distinguished Professorship in Chemical and Biomolecular Engineering. Design and fabrication part of this research was supported by the Center for Nanophase Materials Sciences (CNMS), which is a US Department of Energy , Office of Science User Facility at Oak Ridge National Laboratory .

Funders	Funder number
Center for Nanophase Materials Sciences
U.S. Department of Energy
Defense Threat Reduction Agency	1-16-1-0016
Office of Science
National Nuclear Security Administration	NA-0002920
Oak Ridge National Laboratory
Clemson University

Keywords

2-photon polymerization
Microfluidic sensors
Photoresist
Plastic scintillators
Polymer brush

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.reactfunctpolym.2022.105455

Cite this

Bliznyuk, V. N., Lavrik, N. V., Seliman, A. F., Derevyanko, N. A., Ishchenko, A. A., Husson, S. M., & DeVol, T. A. (2022). Design of microfluidic radionuclide sensors: Combining microscale 3D printing based on 2-photon polymerization with nanoscale polymer brush scintillators. Reactive and Functional Polymers, 181, Article 105455. https://doi.org/10.1016/j.reactfunctpolym.2022.105455

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Design of microfluidic radionuclide sensors: Combining microscale 3D printing based on 2-photon polymerization with nanoscale polymer brush scintillators

Abstract

Funding

Keywords

UN SDGs

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