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Solvatochromic discrimination of alcoholic solvents by structural colors of polydopamine nanoparticle thin filmsoa mark
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Publication Year
2022-05-01
Journal
Colloids and Interface Science Communications
Publisher
Elsevier B.V.
Citation
Colloids and Interface Science Communications, Vol.48
Keyword
Colorimetric sensorsPolydopamine nanoparticlesSolvatochromic sensorsStructural colorsThin film interferences
All Science Classification Codes (ASJC)
BiotechnologyPhysical and Theoretical ChemistrySurfaces, Coatings and FilmsColloid and Surface ChemistryMaterials Chemistry
Abstract
Structural color materials are promising sensory materials that exhibit a stable and stimuli responsive reflection color. To fully utilize their optical property as colorimetric sensors, a material having stimuli-sensitive and optically superior properties has to be applied for designing the structural color material. In this work, a solvatochromic structural color material made of multilayered polydopamine nanoparticles (PdNPs) is presented. Because PdNP has a high refractive index in the range of 1.7–2.0 and good swelling capability, it exhibits a notable solvatochromic behavior in various alcoholic solvents. The solvent sensing performance shows good reliability when compared with that of a refractive index sensing based structural color material. The dynamic reflection spectral patterns of the PdNP thin film upon solvent drying provides more information on the diffusion rate and surface tension of each target solvent. These results indicate that the PdNP thin film can be used to differentiate between physicochemically similar solvents.
ISSN
2215-0382
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/32647
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85128224756&origin=inward
DOI
https://doi.org/10.1016/j.colcom.2022.100624
Journal URL
https://www.journals.elsevier.com/colloid-and-interface-science-communications
Type
Article
Funding
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government ( 2021R1F1A1048628 ; NRF-2017R1A5A1015365 ; NRF-2019R1F1A1060512 ; NRF-2018R1A5A1024127 ). This work was also supported by the GRRC program of Gyeonggi Province ( GRRCAJOU2016B03 , Photonics-Medical Convergence Technology Research Center ).
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Kim, Ju Min김주민
Department of Chemical Engineering
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