Results 151 to 160 of about 11,997 (265)

Исследование волокнистых 3-д полимерных скэффолдов полученных методом электроформирования с минерализованой поверхностью волокон для костной инженерии [PDF]

open access: yes, 2017
В настоящей работе приведены результаты получения нетканых волокнистых трехмерных скэффолдов на основе полигидроксибутирата или полигидроксибутират-гидроксивалерата с минерализованной поверхностью волокон по всему объему скэффолда, и исследования их ...
Chernozem, Roman Viktorovich
core  

Microbial production of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) as a sustainable alternative to petroleum-based plastics: Advances, challenges, and prospects

open access: yesThe Microbe
The depletion of fossil fuel reserves in the coming decades highlights the urgent need for sustainable alternatives to petroleum-based plastics.
S.P. Shibin   +4 more
doaj   +1 more source

Preparation and characterization of Polyhydroxyalkanoates (PHA) and Polylactide (PLA) blends

open access: yes, 2011
International audiencePolylactide (PLA) and poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) blends were prepared in different compositions by melt mixing. The miscibility of the two components was first characterized by differential scanning calorimetry (
Budtova, Tatiana, Gérard, Thibaut
core   +1 more source

Tensile Properties of Pla And Phbv Blends: Anomalous Elongation and Aging

open access: yes, 2012
International audiencePolylactide (PLA) and polyhydroxyalkanoates (PHA) are polymers made from renewable resources. Despite their growing competitiveness with conventional petrol-based polymers, they still have some disadvantages such as poor (fragile ...
Budtova, Tatiana   +2 more
core   +1 more source

Production of 3-hydroxy acids from acetate in engineered Escherichia coli [PDF]

open access: yes, 2018
Acetate serves as an uncommon carbon source for metabolic engineering of value-added chemicals. As a carbon source, acetate has unique advantages since it is not derived from food sources and can be produced as a waste by-product from many biological ...
Mozell, Bradley
core  

PHBV biyopolimer kompozitlerinin hazırlanması ve karakterizasyonu

open access: yes, 2020
PREPARATION AND CHARACTERIZATION OF PHBV BIOPOLYMER COMPOSITESRenewable resource polymers have become an increasingly popular alternative to conventional fossil fuel based polymers in recent years due to ongoing concerns about the disposal of conventional plastics and the increasing costs associated with fossil fuel-based products.
openaire   +1 more source

CRYSTALLIZATION BEHAVIOR OF INCOMPATIBLE PHBV/PS AND PHBV/PMMA CRYSTALLINE/AMORPHOUS BLENDS

open access: yesActa Polymerica Sinica, 2010
Jian YANG   +4 more
openaire   +1 more source

Morphology and thermal properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/attapulgite nanocomposites

open access: yesMaterials Research, 2011
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) - PHBV is a biodegradable polyester which has been studied as an option for the production of disposable goods. Attapulgite is a fibrous clay mineral.
Rossana Mara da Silva Moreira Thiré   +2 more
doaj  

PHBV膜与PHBV/SGBG复合材料联合促进骨再生

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2008
【目的】探讨聚羟基丁酸/羟基戊酸共聚酯 (PHBV) 膜与3-羟基丁酸-co-3-羟基戊酸共聚物/溶胶-凝胶生物活性玻璃 (PHBV/SGBG) 多孔复合材料促进骨再生的能力。【方法】实验共采用8只健康杂种犬,每只犬分别于左、右胫骨各制作2个直径为5 mm的穿通骨髓腔的圆洞形骨缺损区,间隔2 cm。双侧胫骨共建立4个骨缺损模型,将其随机分为四组: A组,骨缺损内填充柱状PHBV/SGBG材料,并在其上方覆盖PHBV膜; B组,骨缺损上方覆盖PHBV膜;C组,骨缺损内填充柱状PHBV/SGBG材料;D组,不放置任何东西。分别于术后2 、4 、8 、12周各处死2只动物,组织学观察不同实验条件下骨缺损区新骨组织生长情况。【结果】所有植入材料组(A组、B组、C组)均未出现植入物排异反应。其中A组术后2周时,
openaire   +1 more source

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