Results 141 to 150 of about 2,606 (175)
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Surface grafting of cellulose nanocrystals with poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
Carbohydrate Polymers, 2014Chemically modified cellulose nanocrystals (CNCs) were synthesized by grafting poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) onto CNCs via homogeneous acylation reaction between N,N-dimethyl formamide (DMF) by using toluene diisocyanate (TDI) as coupling agent and dibutyltin dilaurate as catalyst. The resulting copolymers were studied by using (1)
Hou-Yong, Yu, Zong-Yi, Qin
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Microstructure of bacterially synthesized poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
Macromolecules, 1989Ce ne sont pas des copolymeres statistiques simples mais des melanges de copolymeres statistiques de differentes fractions molaires d ...
N.Kamiya +4 more
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Cocrystallization of isothermally crystallized poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
Macromolecules, 1992The crystalline lattices of random poly(3-hydroxybutyrate-co-3-hydroxyvalerate) were found to be independent of the crystallization temperature, whereas the composition in the crystalline phase changes. The rise in the crystallization temperature is accompanied by the decrease in the content of minor comonomer units in the crystalline phase.
N. Yoshie +3 more
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International Journal of Biological Macromolecules, 2021
In this study, a phaCR gene encoding PHA synthase was identified in Rhodoligotrophos defluvii which was adjacent to β-ketothiolase encoded by phaAR gene and acetoacetyl-CoA reductase encoded by phaBR gene. Amino acid comparison of PhaCR showed the highest homology of 65.98% with PhaC of R.
Changfeng, Miao +8 more
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In this study, a phaCR gene encoding PHA synthase was identified in Rhodoligotrophos defluvii which was adjacent to β-ketothiolase encoded by phaAR gene and acetoacetyl-CoA reductase encoded by phaBR gene. Amino acid comparison of PhaCR showed the highest homology of 65.98% with PhaC of R.
Changfeng, Miao +8 more
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Complex composition distribution of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
Macromolecules, 1995Four commercially available samples of bacterial poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(3HB-co-3HV)] containing from 6.5 to 21.8 mol % 3HV have been fractionated by chloroform/n-heptane mixed solvent. They have been separated into several fractions with wide composition ranges.
Naoko Yoshie +3 more
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Biodegradability of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) in activated sludge
Chemosphere, 1992Abstract The biodegradability of microbial copolyester of 3-hydroxybutyrate and 3-hydroxyvalerate, P(3HB-co-3HV), in activated sludge was studied by MITI test method to examine the applicability of the test to biodegradable plastics. The biodegradability after 28 days was 88% under standard condition and did not vary with the particle size of test ...
Yoshikuni Yakabe +3 more
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Polymer International, 1997
It is proposed that melt-extrusion of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) at varying processing temperatures and screw speeds causes changes in the atomic positioning of the oxygen atoms in the helix structure due to torsion of the main chain bonds.
R. Renstad +4 more
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It is proposed that melt-extrusion of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) at varying processing temperatures and screw speeds causes changes in the atomic positioning of the oxygen atoms in the helix structure due to torsion of the main chain bonds.
R. Renstad +4 more
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Nanofibrous poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/chitosan scaffolds for skin regeneration
International Journal of Biological Macromolecules, 2012The purpose of this study was to evaluate hybrid poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/chitosan nanofibrous mats as scaffolds for skin engineering. In vitro studies were carried out to test the potential of the scaffolds for fibroblasts adhesion, viability, and proliferation (L929 cell line).
Veleirinho, B. +5 more
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Applied Microbiology and Biotechnology, 2000
The process for the production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(3HB/V)] by bacterial fermentation and its recovery was analysed. The effects of various factors such as P(3HB/V) content, P(3HB/V) productivity, P(3HB/V) yield and 3-hydroxyvalerate (3HV) fraction in P(3HB/V) on the production cost of P(3HB/V) were examined.
J, Choi, S Y, Lee
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The process for the production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(3HB/V)] by bacterial fermentation and its recovery was analysed. The effects of various factors such as P(3HB/V) content, P(3HB/V) productivity, P(3HB/V) yield and 3-hydroxyvalerate (3HV) fraction in P(3HB/V) on the production cost of P(3HB/V) were examined.
J, Choi, S Y, Lee
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Biomaterials, 2017
We previously reported that the tailor-made random poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (R-PHBHV) and higher-order PHBHV (O-PHBHV) produced by haloarchaea possessed unique material properties to meet biomedical application-specific requirements. Here, we further investigated the biocompatibility and biodegradation of these novel materials. Cell
Jing, Han +7 more
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We previously reported that the tailor-made random poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (R-PHBHV) and higher-order PHBHV (O-PHBHV) produced by haloarchaea possessed unique material properties to meet biomedical application-specific requirements. Here, we further investigated the biocompatibility and biodegradation of these novel materials. Cell
Jing, Han +7 more
openaire +2 more sources