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Hydrogel Based on Cellulose and Mangosteen Rind Extract With Antibacterial Activity: Preparation and

Ha Thu Nguyen1, Thanh Thao Nguyen1, Ha Thu Do1

  • 1School of Chemistry and Life Sciences, Hanoi University of Science and Technology, Hanoi, Vietnam.

Biopolymers
|May 5, 2025
PubMed
Summary

This study developed an antibacterial hydrogel using mangosteen rind extract and silver nanoparticles. The resulting material shows enhanced thermal properties and effective sterilization against bacteria.

Keywords:
Garcinia magostana extractantibacterial activitygreen materialhydrogel

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Area of Science:

  • Materials Science
  • Biotechnology
  • Nanotechnology

Background:

  • Hydrogels are versatile biomaterials with applications in various fields.
  • Developing antibacterial materials from natural resources is a growing area of research.
  • Silver nanoparticles are known for their antimicrobial properties.

Purpose of the Study:

  • To develop an efficient method for preparing antibacterial hydrogel from natural resources.
  • To introduce silver nanoparticles into a hydrogel matrix using mangosteen rind extract.
  • To characterize the properties of the synthesized hydrogel and evaluate its antibacterial activity.

Main Methods:

  • Extraction of active compounds from mangosteen rind using a water:ethanol solvent mixture.
  • Synthesis of silver nanoparticles via reduction of silver nitrate using mangosteen rind extract.
  • Preparation of hydrogel through graft-copolymerization of acrylic acid on cellulose, followed by crosslinking.
  • Characterization of hydrogel components, structure, and thermal properties.
  • Evaluation of antibacterial activity against gram-positive and gram-negative bacteria.

Main Results:

  • The optimal solvent for mangosteen rind extraction was determined to be water:ethanol (1:2 v/v).
  • Silver nanoparticles formed a strong interaction with the hydrogel matrix, enhancing thermal stability.
  • The synthesized hydrogel exhibited significant antibacterial activity against both gram-positive and gram-negative bacteria.
  • The hydrogel with 9.7 ± 0.2 wt% silver content showed the highest thermal property and antibacterial efficacy.

Conclusions:

  • An efficient method for producing antibacterial hydrogel from natural mangosteen rind extract and silver nanoparticles was successfully developed.
  • The incorporation of silver nanoparticles significantly improved the thermal properties and broad-spectrum antibacterial efficacy of the hydrogel.
  • This study presents a promising natural-based antibacterial hydrogel with potential applications in various biomedical fields.