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KMID : 0545120190290071078
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Journal of Microbiology and Biotechnology
2019 Volume.29 No. 7 p.1078 ~ p.1082
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Comparison of the Stability of Poly-γ-Glutamate Hydrogels Prepared by UV and γ-Ray Irradiation
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Park Sang-Joon
Uyama Hiroshi
Kwak Mi-Sun
Sung Moon-Hee
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Abstract
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Poly-γ?glutamate (γ-PGA) has various applications due to its desirable characteristics in terms of safety and biodegradability. Previous studies have been conducted on γ-PGA hydrogels produced by γ-ray irradiation, but these hydrogels have proved unstable in solutions. This study was conducted to enable the γ-PGA hydrogel to maintain a stable form in solutions. The γ-PGA mixture for UV-irradiation was prepared with a cross-linker (N,N,N-trimethyl-3-[(2- methylacryloyl)amino]propan-1-aminium). Both γ-PGA hydrogels’ characteristics, including stability in solutions, were examined. The UV-irradiated γ-PGA hydrogel maintained a stable form during the nine weeks of the study, but the γ-ray irradiated hydrogel dissolved after one week.
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KEYWORD
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Viscoelasticity, stability, Poly-γ?glutamate, UV irradiated hydrogel, γ-ray irradiated hydrogel, Bacillus sp.
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