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A Stochastic FRET Study on the Core Dimension of Polystyrene-block-Poly(Polyethylene Glycol Monomethyl Ether Acrylate) Micelles
https://yamanashi.repo.nii.ac.jp/records/2000479
https://yamanashi.repo.nii.ac.jp/records/2000479445655a8-dbbe-44f4-bd96-29e10c4e411e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Langmuir40_39_20596.pdf (908 KB)
Download is available from 2025/9/18.
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| Item type | デフォルトアイテムタイプ（梨大）(1) | |||||||||||||||
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| 公開日 | 2025-01-22 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | A Stochastic FRET Study on the Core Dimension of Polystyrene-block-Poly(Polyethylene Glycol Monomethyl Ether Acrylate) Micelles | |||||||||||||||
| 言語 | en | |||||||||||||||
| 作成者 |
小幡, 誠
× 小幡, 誠
WEKO
24790
× Yamaguchi, Shougo
× Yoshimura, Tomokazu
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| アクセス権 | ||||||||||||||||
| アクセス権 | embargoed access | |||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_f1cf | |||||||||||||||
| 権利情報 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 権利情報 | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © 2024 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.langmuir.4c02374. | |||||||||||||||
| 主題 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Aromatic compounds | |||||||||||||||
| 主題 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Fluorescence resonance energy transfer | |||||||||||||||
| 主題 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Hydrocarbons | |||||||||||||||
| 主題 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Micelles | |||||||||||||||
| 主題 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Polymers | |||||||||||||||
| 内容記述 | ||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||
| 内容記述 | Polystyrene-b-poly(polyethylene glycol monomethyl ether acrylate) (PSt-b-PPEGA) copolymers featuring pyrene and perylene as the Förster resonance energy transfer (FRET) donor (denoted as D-BCP) and acceptor (denoted as A-BCP), respectively, were synthesized via the reversible addition and fragmentation chain transfer (RAFT) polymerization. These copolymers were then used to form DA-mixed micelles via a dialysis method. The micelles consisted of D-BCP (mole fraction fD = 0.04), A-BCP (fA = 0.04), and label-free PSt-b-PPEGA (fN = 0.92). The decrease in fluorescence intensity of pyrene in the micelles confirmed the occurrence of FRET, with an observed efficiency of 0.32. A Monte Carlo approach was employed to estimate the expected FRET efficiency, assuming the random fractional distribution of D-BCP and A-BCP, along with the random spatial distribution of pyrene and perylene within the micellar core. The observed FRET efficiency suggested a core radius (Rc) of 0.95R0, where R0 was the Förster critical distance. With R0 calculated to be 3.2 nm based on Förster theory, Rc was determined to be approximately 3.0 nm, aligning closely with the dried-out core radius estimated from aggregation number and polystyrene density. This stochastic FRET methodology was further applied to investigate the swelling behavior of the polymer micelles in a mixture of N,N-dimethylformamide (DMF) and water. Dynamic light scattering analysis revealed minimal change in core dimension below 60 vol % DMF content. However, FRET analysis provided a deeper insight, showing an increase in core radius with DMF content up to 20 vol %, followed by saturation up to 50 vol %, offering a more comprehensive understanding of the micelle swelling behavior. | |||||||||||||||
| 言語 | en | |||||||||||||||
| 出版者 | ||||||||||||||||
| 出版者 | American Chemical Society | |||||||||||||||
| 言語 | en | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| 資源タイプ | ||||||||||||||||
| 資源タイプ識別子（シンプル） | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||
| 資源タイプ（シンプル） | journal article | |||||||||||||||
| 出版タイプ | ||||||||||||||||
| 出版タイプ | AM | |||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||
| 関連情報 | ||||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | https://doi.org/10.1021/acs.langmuir.4c02374 | |||||||||||||||
| 収録物識別子 | ||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||
| 収録物識別子 | 0743-7463 | |||||||||||||||
| 収録物識別子 | ||||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||||
| 収録物識別子 | 1520-5827 | |||||||||||||||
| 書誌情報 |
en : Langmuir 巻 40, 号 39, p. 20596-20603, 発行日 2024-10-01 |
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