Core–Shell Gold Nanoparticle-Star Copolymer Composites with Gradient Transfer and Transport Properties: Toward Electro-Optical Sensors and Catalysis
Abstract
A series of hybrid core–shell nanomaterials was prepared by solvent phase transfer methods with gold (Au) nanoparticles (NPs) as a core and star copolymers (h-PEI-b-PCL-Cbz) as a shell—consisting of hyperbranched polyethyleneimine (h-PEI) with different poly(ε-caprolactone) (PCL) chain lengths and a carbazole-contained terminating agent (Cbz). By varying the PCL chain length, these core–shell nanomaterials exhibited gradient energy transfer properties, surface hydrophobicity, electropolymerizability, and ionic probe transport and diffusion properties. The systematic copolymer formation was verified with quadruple-detector size exclusion chromatography (SEC) and 1H nuclear magnetic resonance (NMR). High-resolution atomic force microscopy-infrared spectroscopy (AFM-IR) chemical mapping verified nanoparticle-substrate adhesion and film formation. The design of these hybrid NPs and elucidation of gradient properties will be useful for future applications of the core–shell systems in electro-optical sensing and catalysis.
- Authors:
-
[2];
[3]
- Case Western Reserve Univ., Cleveland, OH (United States). Dept. of Macromolecular Science and Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
- Case Western Reserve Univ., Cleveland, OH (United States). Dept. of Macromolecular Science and Engineering; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1807227
- Grant/Contract Number:
- AC05-00OR22725; NSF-1608457
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Applied Nano Materials
- Additional Journal Information:
- Journal Volume: 4; Journal Issue: 2; Journal ID: ISSN 2574-0970
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; core-shell structure; gold nanoparticles; star-like polymer; quenching; electro-optical sensor; hydrophobicity
Citation Formats
Cheng, Xiang, Rong, Li-Han, Cao, Peng-Fei, and Advincula, Rigoberto. Core–Shell Gold Nanoparticle-Star Copolymer Composites with Gradient Transfer and Transport Properties: Toward Electro-Optical Sensors and Catalysis. United States: N. p., 2021.
Web. doi:10.1021/acsanm.0c02946.
Cheng, Xiang, Rong, Li-Han, Cao, Peng-Fei, & Advincula, Rigoberto. Core–Shell Gold Nanoparticle-Star Copolymer Composites with Gradient Transfer and Transport Properties: Toward Electro-Optical Sensors and Catalysis. United States. https://doi.org/10.1021/acsanm.0c02946
Cheng, Xiang, Rong, Li-Han, Cao, Peng-Fei, and Advincula, Rigoberto. Wed .
"Core–Shell Gold Nanoparticle-Star Copolymer Composites with Gradient Transfer and Transport Properties: Toward Electro-Optical Sensors and Catalysis". United States. https://doi.org/10.1021/acsanm.0c02946. https://www.osti.gov/servlets/purl/1807227.
@article{osti_1807227,
title = {Core–Shell Gold Nanoparticle-Star Copolymer Composites with Gradient Transfer and Transport Properties: Toward Electro-Optical Sensors and Catalysis},
author = {Cheng, Xiang and Rong, Li-Han and Cao, Peng-Fei and Advincula, Rigoberto},
abstractNote = {A series of hybrid core–shell nanomaterials was prepared by solvent phase transfer methods with gold (Au) nanoparticles (NPs) as a core and star copolymers (h-PEI-b-PCL-Cbz) as a shell—consisting of hyperbranched polyethyleneimine (h-PEI) with different poly(ε-caprolactone) (PCL) chain lengths and a carbazole-contained terminating agent (Cbz). By varying the PCL chain length, these core–shell nanomaterials exhibited gradient energy transfer properties, surface hydrophobicity, electropolymerizability, and ionic probe transport and diffusion properties. The systematic copolymer formation was verified with quadruple-detector size exclusion chromatography (SEC) and 1H nuclear magnetic resonance (NMR). High-resolution atomic force microscopy-infrared spectroscopy (AFM-IR) chemical mapping verified nanoparticle-substrate adhesion and film formation. The design of these hybrid NPs and elucidation of gradient properties will be useful for future applications of the core–shell systems in electro-optical sensing and catalysis.},
doi = {10.1021/acsanm.0c02946},
journal = {ACS Applied Nano Materials},
number = 2,
volume = 4,
place = {United States},
year = {Wed Jan 20 00:00:00 EST 2021},
month = {Wed Jan 20 00:00:00 EST 2021}
}
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