Eco-friendly redispersible cellulose nanocrystal pastes enabled by synergistic maltodextrin–sodium polyacrylate stabilization.

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Title: Eco-friendly redispersible cellulose nanocrystal pastes enabled by synergistic maltodextrin–sodium polyacrylate stabilization.
Authors: Xu, Yongjian1,2 (AUTHOR) xuyongjian@sust.edu.cn, Wei, Xudong1,2 (AUTHOR), Deng, Wenhuan1,2 (AUTHOR), Chen, Hao1,2 (AUTHOR)
Source: Journal of Materials Science. Feb2026, Vol. 61 Issue 5, p2941-2959. 19p.
Subjects: Cellulose nanocrystals, Maltodextrin, Drug solubility, Hydrogels, Green products, Polyacrylates, Nanostructured materials, Applied sciences
Abstract: To address the challenge of irreversible aggregation of nanocrystalline cellulose (CNC) after dehydration and to prepare high-concentration redispersible CNC pastes, this study presents an eco-friendly strategy employing maltodextrin (MD) and sodium polyacrylate (PAAS) as synergistic dispersants. MD functions as a "hydrogen bonding inhibitor" whereas PAAS effectively stabilizes CNC suspensions through electrostatic repulsion. Redispersible CNC pastes with varying dehydration levels were successfully prepared via vacuum-assisted concentration. Systematic evaluations of MD/PAAS impacts on Re-CNC colloidal behavior—including the hydrodynamic diameter, particle size distribution, and surface charge (zeta potential) unveiled the identification of four optimal redispersion pathways. Crucially, the concentration-dehydration-rehydration cycle preserved CNC's intrinsic properties under optimized conditions. Transmission electron microscopy (TEM) analysis confirmed the morphological integrity of CNC, while Fourier-transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) profiles confirmed retention of chemical functionalities and crystalline structures. The engineered pastes exhibited prolonged dispersion stability (> 30 days without sedimentation). Thermal gravimetric analysis further revealed that MD-stabilized Re-CNC maintained thermal decomposition resistance equivalent to native CNC, with PAAS integration substantially elevating thermal endurance by 18–22%. Ultimately, using redispersed cellulose nanocrystals (Re-CNC) and sodium alginate (SA) as the matrix and curcumin (Cur) as the model drug, a double-network hydrogel, Cur@Re-CNC/SA, was constructed through cross-linking with calcium gluconate. Its drug release performance was comparable to that of Cur@CNC/SA prepared from pristine CNC, verifying the feasibility of the redispersion strategy. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Eco-friendly redispersible cellulose nanocrystal pastes enabled by synergistic maltodextrin–sodium polyacrylate stabilization.
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  Data: <searchLink fieldCode="AR" term="%22Xu%2C+Yongjian%22">Xu, Yongjian</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> xuyongjian@sust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wei%2C+Xudong%22">Wei, Xudong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Deng%2C+Wenhuan%22">Deng, Wenhuan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Hao%22">Chen, Hao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%22">Journal of Materials Science</searchLink>. Feb2026, Vol. 61 Issue 5, p2941-2959. 19p.
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  Data: <searchLink fieldCode="DE" term="%22Cellulose+nanocrystals%22">Cellulose nanocrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Maltodextrin%22">Maltodextrin</searchLink><br /><searchLink fieldCode="DE" term="%22Drug+solubility%22">Drug solubility</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogels%22">Hydrogels</searchLink><br /><searchLink fieldCode="DE" term="%22Green+products%22">Green products</searchLink><br /><searchLink fieldCode="DE" term="%22Polyacrylates%22">Polyacrylates</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Applied+sciences%22">Applied sciences</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: To address the challenge of irreversible aggregation of nanocrystalline cellulose (CNC) after dehydration and to prepare high-concentration redispersible CNC pastes, this study presents an eco-friendly strategy employing maltodextrin (MD) and sodium polyacrylate (PAAS) as synergistic dispersants. MD functions as a "hydrogen bonding inhibitor" whereas PAAS effectively stabilizes CNC suspensions through electrostatic repulsion. Redispersible CNC pastes with varying dehydration levels were successfully prepared via vacuum-assisted concentration. Systematic evaluations of MD/PAAS impacts on Re-CNC colloidal behavior—including the hydrodynamic diameter, particle size distribution, and surface charge (zeta potential) unveiled the identification of four optimal redispersion pathways. Crucially, the concentration-dehydration-rehydration cycle preserved CNC's intrinsic properties under optimized conditions. Transmission electron microscopy (TEM) analysis confirmed the morphological integrity of CNC, while Fourier-transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) profiles confirmed retention of chemical functionalities and crystalline structures. The engineered pastes exhibited prolonged dispersion stability (> 30 days without sedimentation). Thermal gravimetric analysis further revealed that MD-stabilized Re-CNC maintained thermal decomposition resistance equivalent to native CNC, with PAAS integration substantially elevating thermal endurance by 18–22%. Ultimately, using redispersed cellulose nanocrystals (Re-CNC) and sodium alginate (SA) as the matrix and curcumin (Cur) as the model drug, a double-network hydrogel, Cur@Re-CNC/SA, was constructed through cross-linking with calcium gluconate. Its drug release performance was comparable to that of Cur@CNC/SA prepared from pristine CNC, verifying the feasibility of the redispersion strategy. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1007/s10853-025-11986-0
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 19
        StartPage: 2941
    Subjects:
      – SubjectFull: Cellulose nanocrystals
        Type: general
      – SubjectFull: Maltodextrin
        Type: general
      – SubjectFull: Drug solubility
        Type: general
      – SubjectFull: Hydrogels
        Type: general
      – SubjectFull: Green products
        Type: general
      – SubjectFull: Polyacrylates
        Type: general
      – SubjectFull: Nanostructured materials
        Type: general
      – SubjectFull: Applied sciences
        Type: general
    Titles:
      – TitleFull: Eco-friendly redispersible cellulose nanocrystal pastes enabled by synergistic maltodextrin–sodium polyacrylate stabilization.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Xu, Yongjian
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          Name:
            NameFull: Wei, Xudong
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            NameFull: Deng, Wenhuan
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            NameFull: Chen, Hao
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            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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              Value: 00222461
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              Value: 61
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              Value: 5
          Titles:
            – TitleFull: Journal of Materials Science
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