Pectin-based surperabsorbent hydrogels crosslinked by some chemicals: synthesis and characterization

Yoshimura, Toshio; Sengoku, Keiko; Fujioka, Rumiko

doi:10.1007/s00289-005-0422-1

Cited by 47 publications

(33 citation statements)

References 7 publications

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“…Some researchers have tried to incorporate natural polymers into superabsorbent materials. Various researchers had modified natural polymers, including polysaccharides, such as starch,1, 2 cellulose,3–5 chitosan,6–8 carrageenan,9 guar gum,10 pectin,11 and alginate,12 as well as proteins, such as collagen,13 soy protein isolate,14, 15 and fish protein 16. Modification of these natural polymers usually involved grafting poly(acrylic acid), poly(acrylamide), poly(acrylonitrile), or their copolymers onto the polymer backbone.…”

Section: Introductionmentioning

confidence: 99%

Modification of wheat gluten with citric acid to produce superabsorbent materials

Chiou¹,

Jafri²,

Cao³

et al. 2013

J of Applied Polymer Sci

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Wheat gluten was reacted with citric acid to produce natural superabsorbent materials able to absorb up to 78 times its weight in water. The properties of the modified gluten samples were characterized using Fourier Transform Infra-red (FTIR) spectroscopy, thermogravimetric analysis, and water uptake. The reaction between gluten and citric acid was examined for gluten : citric acid ratios of 0.38 : 1 to 0.75 : 1 at temperatures from 100 to 130 C. More citric acid reacted for samples containing higher citric acid concentrations and at higher temperatures. FTIR analyses indicated the presence of carboxylate groups on the modified gluten samples, which resulted in modified samples having higher water uptake values than neat gluten. The sample with a gluten:citric acid ratio of 0.5 : 1 and reaction temperature of 120 C had the largest water uptake value. Also, all modified gluten samples had lower thermal stability than neat gluten.

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Section: Introductionmentioning

confidence: 99%

Modification of wheat gluten with citric acid to produce superabsorbent materials

Chiou¹,

Jafri²,

Cao³

et al. 2013

J of Applied Polymer Sci

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“…To provide alternatives to petroleum‐based superabsorbent polymers, various authors have modified natural polymers, including polysaccharides, such as starch,1–9 cellulose,10–14 chitosan,15–19 carrageenan,20 guar gum,21 pectin,22 and alginate,23 and proteins, such as collagen,24 soy protein isolate,25, 26 and fish protein 27. The modification of these natural polymers has usually involved the grafting of poly(acrylic acid), polyacrylamide, polyacrylonitrile, or their copolymers onto a polymer backbone.…”

Section: Introductionmentioning

confidence: 99%

“…There have been few superabsorbent polymers developed from just natural polymers. These have usually involved the crosslinking of natural polymers 11–13, 18, 22. Another approach involved the sulfating of wheat gluten powder by the formation of sulfuric acid esters with gluten amino acids that contained reactive hydroxyl groups, such as serine and tyrosine.…”

Section: Introductionmentioning

confidence: 99%

Water absorbance and thermal properties of sulfated wheat gluten films

Chiou¹,

Robertson²,

Rooff³

et al. 2010

J of Applied Polymer Sci

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Wheat gluten films of various thicknesses formed at 30-70 C were treated with cold sulfuric acid to produce sulfated gluten films. Chemical, thermal, thermal stability, and water uptake properties were characterized for neat and sulfated films. The sulfated gluten films were able to absorb up to 30 times their weight in deionized water. However, this value dropped to 3.5 when the film was soaked in a 0.9% (w/w) NaCl solution. The films were also soaked 4 times in deionized water, and each soaking resulted in a reduced water uptake capacity. The temperature of film formation had no effect on the final water uptake properties. Also, thinner films had higher concentrations of sulfate groups than thicker films; this resulted in higher water uptake values. In addition, sulfated gluten films had comparable glass-transition temperatures but lower thermal stabilities than the neat gluten

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“…Besides alginate, pectin is another natural polysaccharide and possesses a carboxylic group that can be crosslinked by cations [97]. Pectin hydrogels exhibit a poor bioresorption ability similar to alginates and can degrade under physiological conditions.…”

Section: Fabrication Of Injectable Scaffoldsmentioning

confidence: 99%

Injectable scaffolds: Preparation and application in dental and craniofacial regeneration

Chang

Ahuja

et al. 2017

Materials Science and Engineering: R: Reports

212

170

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Injectable scaffolds are appealing for tissue regeneration because they offer many advantages over pre-formed scaffolds. This article provides a comprehensive review of the injectable scaffolds currently being investigated for dental and craniofacial tissue regeneration. First, we provide an overview of injectable scaffolding materials, including natural, synthetic, and composite biomaterials. Next, we discuss a variety of characteristic parameters and gelation mechanisms of the injectable scaffolds. The advanced injectable scaffolding systems developed in recent years are then illustrated. Furthermore, we summarize the applications of the injectable scaffolds for the regeneration of dental and craniofacial tissues that include pulp, dentin, periodontal ligament, temporomandibular joint, and alveolar bone. Finally, our perspectives on the injectable scaffolds for dental and craniofacial tissue regeneration are offered as signposts for the future advancement of this field.

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Pectin-based surperabsorbent hydrogels crosslinked by some chemicals: synthesis and characterization

Cited by 47 publications

References 7 publications

Modification of wheat gluten with citric acid to produce superabsorbent materials

Modification of wheat gluten with citric acid to produce superabsorbent materials

Water absorbance and thermal properties of sulfated wheat gluten films

Injectable scaffolds: Preparation and application in dental and craniofacial regeneration

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