Results 111 to 120 of about 121,378 (216)

In‐Depth Analysis of the Complex Interactions Induced by Nanolayered Additives in PHBV Nanocomposites

open access: yesMacromolecular Materials and Engineering
New nanocomposites based on biopolymer poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) (PHBV) are processed via extrusion, using low content of calcined hydrotalcite (CHT) and cloisite 20A (C20A) as additives (3 wt%). The aim of this work is to characterize
Pablo‐Manuel Martínez‐Rubio   +6 more
doaj   +1 more source

Photothermal methods and atomic force microscopy images applied to the study of poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) dense membranes [PDF]

open access: yes, 2015
Thermal and transport properties of some polyhydroxyalkanoates (PHAs), poly-3- hydroxybutyrate and poly-3-hydroxybutyrate-co-3-hydroxyvalerate copolymers at different concentrations (8, 14, and 22%), were studied by using photoacoustic and photothermal ...
Siqueira, APL   +6 more
core   +1 more source

PLA/PHBV/SEP/ZnO Hybrid Composites for Antimicrobial Multifunctional Packaging [PDF]

open access: yesMaterials Research
The development of multifunctional packaging addresses the demand for solutions that combine protection, sustainability, and functionalities such as antimicrobial activity.
Aline Vasconcelos Duarte   +9 more
doaj   +1 more source

Investigations into poly(3-hydroxybutyrate-co-3-hydroxyvalerate) surface properties causing delayed osteoblast growth [PDF]

open access: yes, 2007
Osteoblast proliferation is sensitive to material surface properties. In this study, the proliferation of MC3T3 E1-S14 osteoblastic cells on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) films with different surface characteristics was investigated
Trau, Matt   +14 more
core   +1 more source

Cimentos ósseos acrílicos modificados com enchimento bioativo e biodegradável [PDF]

open access: yes, 2012
Doutoramento em Engenharia BiomédicaO cimento ósseo acrílico é o único material utilizado para a fixação de próteses em cirurgias ortopédicas, surgindo como uma alternativa às técnicas não cimentadas.
Lopes, Poliana Pollizello
core   +1 more source

Produção de Poli(3-hidroxibutirato) por Cupriavidus necator DSM 545 em meio suplementado com óleo de soja miniemulsionado [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Alimentos, Florianópolis, 2011Poli(3-hidroxibutirato) P(3HB) é um produto intracelular produzido por inúmeros micro-organismos,
Schmidt, Mélodi
core  

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  

Produção de poli(3-hidroxibutirato) por linhagens de Escherichia coli DH5a e JM101 recombinantes [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de AlimentosPoli-hidroxialcanoatos (PHAs) são uma família de polímeros biodegradáveis que muitos micro-organismos são capazes de ...
Zanfonato, Kellen
core  

The effect of gamma radiation on mechanical properties of biodegradable polymers poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

open access: yesMaterials Research, 2013
Brazilian poly(3-hydroxybutyrate), P(3-HB), and its copolymer, poly (3-hydroxybutyrate-co-3-hydroxyvalerate), P(3-HB-co-3-HV) were irradiated with gamma radiation (60Co) at room temperature and in the presence of oxygen. The viscosity-average molar mass (
Leticia Maria Oliveira   +2 more
doaj  

Photoacoustic Monitoring of Internal Plastification in Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Copolymers: Measurements of Thermal Parameters

open access: yesJournal of the Brazilian Chemical Society, 1999
Basic data on thermophysical properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) copolymers poly(3HB-co-3HV) were investigated with the aim of understanding the role of 3-hydroxyvalerate monomeric units (3HV) incorporated during random ...
Sanchez Ruben R.   +7 more
doaj  

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