Biomass-Derived Red–Blue Solvatochromic Carbon Quantum Dots for UV-Blocking and Active Packaging Applications
生体高分子由来の赤青ソルバトクロミック炭素量子ドット：UVブロックおよびアクティブ包装への応用 (AI 翻訳)
Tanachporn Lukprang, Pakorn Preechaburana, Supaluck Amloy
🤖 gxceed AI 要約
日本語
マンゴスチン葉から溶媒熱水法で合成した炭素量子ドット（CQD）は、溶媒極性により赤色発光と青色発光に分かれた。赤色CQDは高い抗酸化・抗菌活性を示し、PVAフィルムに配合することでUV遮蔽とトマトの熟成遅延（7～14日）を実現した。
English
Carbon quantum dots (CQDs) were synthesized from mangosteen leaves via a solvent-mediated hydrothermal route, yielding red- and blue-emissive variants. Red-CQDs exhibited enhanced antioxidant and antibacterial activity, and their PVA nanocomposite films provided UV-blocking and extended tomato shelf life by 7–14 days.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では食品ロス削減やバイオマス資源活用がGX政策の一環として注目されており、本研究成果は生分解性包装材やUV保護材の開発に寄与する可能性がある。
In the global GX context
This work aligns with global sustainable packaging trends, offering a biomass-derived alternative for UV-blocking and active food packaging, which can reduce food waste and reliance on synthetic additives.
👥 読者別の含意
🔬研究者:Provides structure-function correlations for biomass-derived CQDs, useful for designing tunable emission and multifunctional nanocomposites.
🏢実務担当者:Relevant for packaging industry seeking sustainable UV-blocking and active packaging materials to extend shelf life.
🏛政策担当者:Supports bioeconomy and food waste reduction policies through biomass valorization in packaging applications.
📄 Abstract（原文）
High Resolution Image Download MS PowerPoint Slide In this research, biomass-derived carbon quantum dots (CQDs) with solvent-dependent emission colors were synthesized from mangosteen leaves via a solvent-mediated hydrothermal route, in order to elucidate the relationship between structure and emission and to evaluate their potential for multifunctional packaging applications. Systematic morphological and structural analyses demonstrated that the solvent polarity governed the degree of carbonization, particle size, and surface chemistry. Red-emissive CQDs (R-CQDs) were formed in a less polar medium and exhibited larger sp 2 domains enriched with hydroxyl groups, whereas blue-emissive CQDs (B-CQDs) synthesized in a polar solvent had smaller sp 2 domains with higher values for the content of oxygen- and nitrogen-containing functionalities. These distinctions resulted in excitation-independent red emission for R-CQDs and excitation-tunable blue-green emission for B-CQDs. R-CQDs showed enhanced antioxidant activity (IC 50 = 8.84 μg mL –1 ) relative to B-CQDs (IC 50 = 21.03 μg mL –1 ), while antibacterial activity against Escherichia coli and Staphylococcus aureus was observed exclusively for R-CQDs, indicating a structure-dependent antibacterial response. When the CQDs were incorporated into poly(vinyl alcohol) (PVA) matrices, the nanocomposite films demonstrated enhanced UV-blocking performance, with R-CQD/PVA film giving stronger attenuation due to enhanced π–π* transitions and more efficient interfacial energy transfer. Storage tests also showed that when tomatoes were packaged with R-CQD/PVA film, ripening was delayed by approximately 7–14 days compared to the control films. These findings establish clear correlations between solvent, structure, and function for biomass-derived CQDs and suggest a sustainable strategy for designing multifunctional nanocomposite films for UV-protective and active food-packaging applications.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acsphyschemau.6c00013first seen 2026-06-17 06:03:15 · last seen 2026-06-17 07:14:26
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。