Results 171 to 180 of about 3,601 (217)

Isothermal crystallization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

European Polymer Journal, 2003
Isothermal crystallization behavior of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was investigated by means of differential scanning calorimetry and polarized optical microscopy (POM). The Avrami analysis can be used successfully to describe the isothermal crystallization kinetics of PHBV, which indicates that the Avrami exponent n = 3 is good
Shuwen Peng, Yuxian An, Cheng Chen, Bin Fei, Yugang Zhuang, Lisong Dong   +5 more
openaire   +1 more source

Fabrication of chitin/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) hydrogel scaffold

Carbohydrate Polymers, 2012
Regeneration of skin after a large area wound or burn is often difficult without the aid of a scaffold. In this work we developed a 3D macroporous chitin/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) hydrogel blend by normal solution chemistry and lyophilized it to get the scaffold.
Deepthi, Sankar, K P, Chennazhi, Shantikumar V, Nair, R, Jayakumar   +3 more
openaire   +2 more sources

Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) production by Haloarchaeon Halogranum amylolyticum

Applied Microbiology and Biotechnology, 2015
Haloarchaea is an important group of polyhydroxyalkanoate (PHA)-accumulating organisms. However, few promising haloarchaeal species for economical and efficient PHA production have been reported. Here, we first discovered that Halogranum amylolyticum TNN58 could efficiently accumulate poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) with a high 3 ...
You-Xi, Zhao, Zhi-Ming, Rao, Yan-Fen, Xue, Ping, Gong, Yi-Zhi, Ji, Yan-He, Ma   +5 more
openaire   +2 more sources

Microencapsulation of antibiotic rifampicin in poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

Archives of Pharmacal Research, 2008
The aim of this study was the preparation of microparticles containing rifampicin using a biodegradable polymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) for oral administration produced by a bacteria. The poly(3-hydroxybutyrate-co-3-hydroxyvalerate) microparticles with and without rifampicin were prepared by the emulsification and solvent ...
N, Durán, M A, Alvarenga, E C, Da Silva, P S, Melo, P D, Marcato   +4 more
openaire   +2 more sources

Synthesis of poly‐(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) by recombinant Escherichia coli

Biotechnology and Bioengineering, 1996
Several recombinant Escherichia coli strains, including XL1-Blue, JM109, HB101, and DH5alpha harboring a stable high-copynumber plasmid pSYL105 containing the Alcaligenes eutrophus polyhydroxyalkanoate (PHA) biosynthesis genes were constructed.
Yim, KS, Lee, SY Lee, SangYup, Chang, HN Chang, Ho Nam   +2 more
openaire   +2 more sources

Anaerobic degradation of poly-3-hydroxybutyrate and poly-3-hydroxybutyrate-co-3-hydroxyvalerate

Biodegradation, 1997
The anaerobic degradation of the polyesters poly-3-hydroxybutyrate (PHB) and poly-3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) was investigated with special regard to intermediate products, kinetics, and yields. During the degradation of PHBV acetate, propionate, n-butyrate, and n-valerate were detected.
A, Reischwitz, E, Stoppok, K, Buchholz
openaire   +2 more sources

Microstructure of bacterially synthesized poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

Macromolecules, 1989
Ce ne sont pas des copolymeres statistiques simples mais des melanges de copolymeres statistiques de differentes fractions molaires d ...
N.Kamiya, Y.Yamamoto, Y.Inoue, R.Chujo, Y.Doi   +4 more
openaire   +1 more source

Cocrystallization of isothermally crystallized poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

Macromolecules, 1992
The 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, M. Sakurai, Y. Inoue, R. Chujo   +3 more
openaire   +1 more source

Nanofibrous poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/chitosan scaffolds for skin regeneration

International Journal of Biological Macromolecules, 2012
The 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., Coelho, D.S., Dias, P.F., Maraschin, M., Ribeiro-do-Valle, R.M., Lopes da Silva, J.A.   +5 more
openaire   +3 more sources

Targeted poly(3-hydroxybutyrate-co-3-hydroxyvalerate) bioplastic production from carbon dioxide

Bioresource Technology, 2018
A microbial production process was developed to convert CO2 and valeric acid into tailored poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) bioplastics. The aim was to understand microbial PHBV production in mixotrophic conditions and to control the monomer distribution in the polymer.
Stef, Ghysels, Md Salatul Islam, Mozumder, Heleen, De Wever, Eveline I P, Volcke, Linsey, Garcia-Gonzalez   +4 more
openaire   +2 more sources