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Selective and Controlled Release Responsive Nanoparticles with Adsorption-Pairing Synergy for Anthocyanin Extraction

文献类型： 外文期刊

作者： Jiang, Xizhi 1 ; Wang, Min 1 ; Lou, Zhichao 3 ; Han, He 3 ; Yan, Nina 1 ; Guan, Qingbao 4 ; Xu, Lei 1 ;

作者机构： 1.Minist Agr & Rural Affairs, Key Lab Protected Agr Engn Middle & Lower Reaches, Nanjing 210014, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agr Facil & Equipment, Jiangsu Engn Technol Res Ctr Biomass Composites &, Nanjing 210014, Jiangsu, Peoples R China

3.Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210037, Jiangsu, Peoples R China

4.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Int Joint Lab Adv Fiber & Low Dimens Mat, Shanghai 201620, Peoples R China

关键词： anthocyanins; Fe3O4 nanoparticles; extraction; selective adsorption; controlledrelease

期刊名称：ACS NANO （ 影响因子：17.1； 五年影响因子：17.1 ）

ISSN： 1936-0851

年卷期： 2024 年 18 卷 3 期

页码：

收录情况： SCI

摘要： Anthocyanins with different structures have different anti-inflammatory and anti-cancer properties. Precise structural use can improve the chemopreventive effects of anthocyanins and enhance treatment outcomes because the anthocyanin structure influences its functional sites and activities. However, owing to the available variety of anthocyanins and their complex structures, the low matching of intermolecular forces between existing adsorbents and anthocyanins limits the targeted separation of anthocyanin monomers. Short-range and efficient selective binding, which is difficult to achieve, is the current focus in the extraction field. We here developed self-assembled Fe3O4-based nano adsorbers with different surface modifications based on adsorption-pairing synergy. The electrostatic force, coordination bond, hydrogen bond, and pi-pi* bond together induced selective adsorption between Fe3O4 nanoparticles and anthocyanin molecules. An acid-release solution disrupted the polarity balance in the aforementioned association system, thereby promoting the controlled release of anthocyanins. Among the candidates, the effects of morphology, particle size, surface charge, and functional group on adsorption performance were analyzed. The polyacrylamide-modified magnetic Fe3O4 nanoparticles were found to be favorable for selectively extracting anthocyanin, with an adsorption capacity of 19.74 +/- 0.07 mg g(-1). The release percentage of cyanidin-3-O-glucoside reached up to 98.6% +/- 1.4%. This study offers a scientific basis for developing feasible nanotechniques to extract anthocyanins and plant active substances.

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