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A bio-based pesticide sustained release system constructed from cellulose-chitosan hydrogel: Promoting seed germination and providing protection.

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Title: A bio-based pesticide sustained release system constructed from cellulose-chitosan hydrogel: Promoting seed germination and providing protection.
Authors: Sun, Linan1,2,3 (AUTHOR), Wang, Tao1,2,3 (AUTHOR), Qin, Bingyang1,2,3 (AUTHOR), Nie, Chengdong1,2,3 (AUTHOR), Zhao, Jingru1,2,3 (AUTHOR), Fu, Yujie1,4 (AUTHOR) yujie_fu@163.com
Source: Reactive & Functional Polymers. Nov2025, Vol. 216, pN.PAG-N.PAG. 1p.
Subjects: Germination, Hydrogels, Biopesticides, Controlled release preparations, Biocompatibility, Agricultural productivity, Plant protection, Water storage
Abstract: Water is essential for crop growth, particularly during the seed germination stage. This study proposes a novel strategy utilizing a natural bio-based hydrogel to enhance soil water retention and improve the hydration capacity for seeds. A hydrogel (CMC-Na/HACC/FeCl 3), synthesized from sodium carboxymethyl cellulose (CMC Na) and chitosan quaternary ammonium salt (HACC) via ferric chloride (FeCl 3), has the advantages of high stability and low cytotoxicity. Upon water absorption, the swelling degree of CMC-Na/HACC/FeCl 3 exceeds 20 g/g, providing sufficient moisture for plant growth. The experimental results showed that CMC-Na/HACC/FeCl 3 could significantly increase the seed germination rate compared with the traditional soil, and the germination rate could be up to 75 %, and the germination time, the length of germ and the length of the embryonic axis were significantly improved. In addition, in this study, the plant extracted insecticide matrine (MT) was added into the hydrogel system to form CMC-Na/HACC/FeCl 3 /MT. The results of the study showed that MT could be gradually released from the hydrogel, and the release time could last for 21 days. The hydrogel provided moisture to the seeds while creating a barrier against pest invasion and showed significant antibacterial effects. Both CMC-Na/HACC/FeCl 3 and CMC-Na/HACC/FeCl 3 /MT are anticipated to be valuable in agricultural production due to their excellent properties, which contribute to improving soil composition and minimizing resource waste and environmental pollution. Diagram 1: The schematic synthesis process of CMC-Na/HACC/FeCl 3 and CMC-Na/HACC/FeCl 3 /MT. [Display omitted] • A water-retaining hydrogel was prepared for promoting seed germination. • The prepared hydrogel can slow-release pesticides to avoid seeds from pests. • The hydrogel has good biocompatibility and high absorption. • The hydrogel is highly porous and stable. [ABSTRACT FROM AUTHOR]
Copyright of Reactive & Functional Polymers is the property of Elsevier B.V. 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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 187867507
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: A bio-based pesticide sustained release system constructed from cellulose-chitosan hydrogel: Promoting seed germination and providing protection.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Sun%2C+Linan%22">Sun, Linan</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Tao%22">Wang, Tao</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qin%2C+Bingyang%22">Qin, Bingyang</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nie%2C+Chengdong%22">Nie, Chengdong</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Jingru%22">Zhao, Jingru</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Yujie%22">Fu, Yujie</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<i> yujie_fu@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Reactive+%26+Functional+Polymers%22">Reactive & Functional Polymers</searchLink>. Nov2025, Vol. 216, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Germination%22">Germination</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogels%22">Hydrogels</searchLink><br /><searchLink fieldCode="DE" term="%22Biopesticides%22">Biopesticides</searchLink><br /><searchLink fieldCode="DE" term="%22Controlled+release+preparations%22">Controlled release preparations</searchLink><br /><searchLink fieldCode="DE" term="%22Biocompatibility%22">Biocompatibility</searchLink><br /><searchLink fieldCode="DE" term="%22Agricultural+productivity%22">Agricultural productivity</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+protection%22">Plant protection</searchLink><br /><searchLink fieldCode="DE" term="%22Water+storage%22">Water storage</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Water is essential for crop growth, particularly during the seed germination stage. This study proposes a novel strategy utilizing a natural bio-based hydrogel to enhance soil water retention and improve the hydration capacity for seeds. A hydrogel (CMC-Na/HACC/FeCl 3), synthesized from sodium carboxymethyl cellulose (CMC Na) and chitosan quaternary ammonium salt (HACC) via ferric chloride (FeCl 3), has the advantages of high stability and low cytotoxicity. Upon water absorption, the swelling degree of CMC-Na/HACC/FeCl 3 exceeds 20 g/g, providing sufficient moisture for plant growth. The experimental results showed that CMC-Na/HACC/FeCl 3 could significantly increase the seed germination rate compared with the traditional soil, and the germination rate could be up to 75 %, and the germination time, the length of germ and the length of the embryonic axis were significantly improved. In addition, in this study, the plant extracted insecticide matrine (MT) was added into the hydrogel system to form CMC-Na/HACC/FeCl 3 /MT. The results of the study showed that MT could be gradually released from the hydrogel, and the release time could last for 21 days. The hydrogel provided moisture to the seeds while creating a barrier against pest invasion and showed significant antibacterial effects. Both CMC-Na/HACC/FeCl 3 and CMC-Na/HACC/FeCl 3 /MT are anticipated to be valuable in agricultural production due to their excellent properties, which contribute to improving soil composition and minimizing resource waste and environmental pollution. Diagram 1: The schematic synthesis process of CMC-Na/HACC/FeCl 3 and CMC-Na/HACC/FeCl 3 /MT. [Display omitted] • A water-retaining hydrogel was prepared for promoting seed germination. • The prepared hydrogel can slow-release pesticides to avoid seeds from pests. • The hydrogel has good biocompatibility and high absorption. • The hydrogel is highly porous and stable. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Reactive & Functional Polymers is the property of Elsevier B.V. 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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.reactfunctpolym.2025.106405
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Germination
        Type: general
      – SubjectFull: Hydrogels
        Type: general
      – SubjectFull: Biopesticides
        Type: general
      – SubjectFull: Controlled release preparations
        Type: general
      – SubjectFull: Biocompatibility
        Type: general
      – SubjectFull: Agricultural productivity
        Type: general
      – SubjectFull: Plant protection
        Type: general
      – SubjectFull: Water storage
        Type: general
    Titles:
      – TitleFull: A bio-based pesticide sustained release system constructed from cellulose-chitosan hydrogel: Promoting seed germination and providing protection.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Sun, Linan
      – PersonEntity:
          Name:
            NameFull: Wang, Tao
      – PersonEntity:
          Name:
            NameFull: Qin, Bingyang
      – PersonEntity:
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            NameFull: Nie, Chengdong
      – PersonEntity:
          Name:
            NameFull: Zhao, Jingru
      – PersonEntity:
          Name:
            NameFull: Fu, Yujie
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          Dates:
            – D: 01
              M: 11
              Text: Nov2025
              Type: published
              Y: 2025
          Identifiers:
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              Value: 13815148
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            – Type: volume
              Value: 216
          Titles:
            – TitleFull: Reactive & Functional Polymers
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