Comparison study of hydrogels properties synthesized with micro- and nano- size bacterial cellulose particles extracted from nata de coco

N. S. Johari, Ishak Ahmad, N. Halib

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The effect of different size of bacterial cellulose particles used in the production of hydrogel was investigated. Bacterial cellulose was extracted from nata de coco, a local dessert origin from the Philippines. Micro size particle was prepared by conventional grinding of dried sheet of bacterial cellulose whereas cellulose nanoparticle was prepared by acid hydrolysis treatment. Both were then used in hydrogels formulation with acrylic acid (in ratio of 70% of bacterial cellulose dispersion to 30% acrylic acid) and exposed to electron beam irradiation (40 kGy). TEM observation showed nano cellulose particle, having range of dimension of 80 - 160 nm in length and 13 - 22 nm in diameter. It was found that hydrogel with nano cellulose has higher glass transition temperature (39°C) as compared to micro cellulose hydrogel (32°C). SEM observation revealed that swollen nano cellulose hydrogel has smaller and homogenous pores arrangement while micro cellulose has bigger and irregular pores thus affecting their swelling degree.

Original languageEnglish
Pages (from-to)399-404
Number of pages6
JournalChemical and Biochemical Engineering Quarterly
Volume26
Issue number4
Publication statusPublished - 2012

Fingerprint

Cocos
Hydrogels
Cellulose
Hydrogel
Acrylics
Acids
Observation
Philippines
Transition Temperature
Particle Size
Nanoparticles
Particles (particulate matter)
Glass
Swelling
Electron beams
Hydrolysis
Particle size
Irradiation
Electrons
Transmission electron microscopy

Keywords

  • Acrylic acid
  • Bacterial cellulose
  • Electron beam
  • Hydrogel
  • Swelling degree

ASJC Scopus subject areas

  • Process Chemistry and Technology
  • Biochemistry
  • Chemistry(all)

Cite this

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title = "Comparison study of hydrogels properties synthesized with micro- and nano- size bacterial cellulose particles extracted from nata de coco",
abstract = "The effect of different size of bacterial cellulose particles used in the production of hydrogel was investigated. Bacterial cellulose was extracted from nata de coco, a local dessert origin from the Philippines. Micro size particle was prepared by conventional grinding of dried sheet of bacterial cellulose whereas cellulose nanoparticle was prepared by acid hydrolysis treatment. Both were then used in hydrogels formulation with acrylic acid (in ratio of 70{\%} of bacterial cellulose dispersion to 30{\%} acrylic acid) and exposed to electron beam irradiation (40 kGy). TEM observation showed nano cellulose particle, having range of dimension of 80 - 160 nm in length and 13 - 22 nm in diameter. It was found that hydrogel with nano cellulose has higher glass transition temperature (39°C) as compared to micro cellulose hydrogel (32°C). SEM observation revealed that swollen nano cellulose hydrogel has smaller and homogenous pores arrangement while micro cellulose has bigger and irregular pores thus affecting their swelling degree.",
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AU - Johari, N. S.

AU - Ahmad, Ishak

AU - Halib, N.

PY - 2012

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N2 - The effect of different size of bacterial cellulose particles used in the production of hydrogel was investigated. Bacterial cellulose was extracted from nata de coco, a local dessert origin from the Philippines. Micro size particle was prepared by conventional grinding of dried sheet of bacterial cellulose whereas cellulose nanoparticle was prepared by acid hydrolysis treatment. Both were then used in hydrogels formulation with acrylic acid (in ratio of 70% of bacterial cellulose dispersion to 30% acrylic acid) and exposed to electron beam irradiation (40 kGy). TEM observation showed nano cellulose particle, having range of dimension of 80 - 160 nm in length and 13 - 22 nm in diameter. It was found that hydrogel with nano cellulose has higher glass transition temperature (39°C) as compared to micro cellulose hydrogel (32°C). SEM observation revealed that swollen nano cellulose hydrogel has smaller and homogenous pores arrangement while micro cellulose has bigger and irregular pores thus affecting their swelling degree.

AB - The effect of different size of bacterial cellulose particles used in the production of hydrogel was investigated. Bacterial cellulose was extracted from nata de coco, a local dessert origin from the Philippines. Micro size particle was prepared by conventional grinding of dried sheet of bacterial cellulose whereas cellulose nanoparticle was prepared by acid hydrolysis treatment. Both were then used in hydrogels formulation with acrylic acid (in ratio of 70% of bacterial cellulose dispersion to 30% acrylic acid) and exposed to electron beam irradiation (40 kGy). TEM observation showed nano cellulose particle, having range of dimension of 80 - 160 nm in length and 13 - 22 nm in diameter. It was found that hydrogel with nano cellulose has higher glass transition temperature (39°C) as compared to micro cellulose hydrogel (32°C). SEM observation revealed that swollen nano cellulose hydrogel has smaller and homogenous pores arrangement while micro cellulose has bigger and irregular pores thus affecting their swelling degree.

KW - Acrylic acid

KW - Bacterial cellulose

KW - Electron beam

KW - Hydrogel

KW - Swelling degree

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