Preparation and Characterization of Bio-Hydrogels for Biomedical Engineering

Tunga Lag Dong; Xue Yan Yun; Meng Ting Li; Ye Jin; Yoshio Inoue

doi:10.4028/www.scientific.net/AMR.700.276

Paper Titles

Effects of Enzyme Concentration, pH, Time and Temperature on the β-Galactosidase Activity Immobilized by Chitosan Beads with Material Properties
p.251

Effect of Five Materials Including Sucrose, Lactose, Skim Milk, Yeast, Vitamin B₂ on Survival of Lactobacillus bulgaricus during Freeze-Drying
p.255

Effect of Four Materials Including Trehalose, Soluble Starch, Raffinose and Galactose on Survival of Lactobacillus acidophilus during Freeze-Drying
p.259

Antioxidant Activities of Tilapia (Oreochromis niloticus) Protein Hydrolysates-Iron Chelate Based on Properties of Biological Materials
p.263

Study on Environmental Materials with Analysis of the Characteristics and Formation Mechanism of Inland Saline Water in the Northwest of Shandong
p.268

Study on Environmental Materials with Analysis of the Hydraulic Connection Between Downtown and East and West Suburbs in Jinan, Shandong Province of China
p.272

Preparation and Characterization of Bio-Hydrogels for Biomedical Engineering
p.276

Orthogonal Test Design for Optimization of Emulsifying Effectiveness of Phytosterol Adding to Milk Using Tween as Emulsifiers
p.280

Effects of Hot Water Extract from Fructus tribuli on Growth of Lactobacillus casei, Lactobacillus reuteri, Lactobacillus rhamnosus and Lactobacillus bulgaricus with Material Properties
p.284

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Preparation and Characterization of Bio-Hydrogels for Biomedical Engineering

Abstract:

In this work, a new crystalline PEO cross-linked CD films combining PEO and CDs (α-CD and β-CD) was prepared, and their compositions (CD/PEO; wt/wt) ranging from 1/99 to 6/94. The hydroxyl groups of PEO with M_n of 20,000 were converted to chlorine groups through reaction with thionyl chloride. PEO cross-linked CD films with various compositions were successfully prepared via the epoxy-amine reaction between amino-CD and PEO-epoxy. The thermal and swelling behavior were studied for the PEO cross-linked CD films. It was found that the cross-linked PEO films form hydrogel in water, achieving a swelling ratio higher than 20 times of original weight. The swelling properties of these cross-linked films depend on the fraction of CDs. The crystallinity of these films was very high, and crystallization rate of PEO was accelerated by cross-linking with CDs.