Biodegradable conductive composites of poly(3-hydroxybutyrate) and polyaniline nanofibers: Preparation, characterization and radiolytic effects

Araújo, Patrícia Lopes Barros de; Ferreira, C. R. P. C.; Araújo, Elmo S.

doi:10.3144/expresspolymlett.2011.3

Cited by 30 publications

(12 citation statements)

References 53 publications

(62 reference statements)

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“…elastomer [13] polyaniline [14]. These blending composites can improve physical properties by some extent and reduce the cost, but also there are some problems in compatibility.…”

mentioning

confidence: 99%

Structural characteristics and enhanced mechanical and thermal properties of full biodegradable tea polyphenol/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) composite films

Chen¹,

Cheng²,

Zhu³

et al. 2013

Express Polym. Lett.

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Recently, bacterial polyester poly(hydroxybutyrateco-hydroxyvalerate) (PHBV) has been arising much attention in the field of biomedical and environmental friendly materials because of its good biocompatibility, biodegradability as well as thermoplastic properties. However, the wide application has been restricted by the poor mechanical properties and narrow processing window [1]. Therefore, a significant amount of work has been devoted to improving mechanical and thermal properties of PHBV via PHBV-based polymer blends and composites [2]. This work mainly covers four aspects: nanoparticles/PHBV composites, traditional petrochemicalbased materials/PHBV composites, biodegradable petrochemical-based polymer/PHBV composites, and bio-based materials/PHBV composites. In nanoparticles/PHBV composites, inorganic nanoparticles mainly include oxide [3], nitride [4], mineralization materials [5,6], carbon materials or minerals [7], and layered double hydroxides [8,9]. Organic nanoparticles mainly include cellulose nanocrystal [10], chitosan nanocrystal and starch nanocrystal [11]. The introduction of nanoparticles is helpful for improving the physical properties and processing properties of PHBV through increasing the nucleation density and decreasing the spherulite size. In petrochemical-based materials/PHBV composites, the additive components consist mainly of non-biodegradable polyolefin [12] Abstract. Full biodegradable poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) composite films were prepared with 5~40 wt% green tea polyphenol (TP) as toughener. The effects of mixing TP on mechanical properties, thermal properties and hydrophilic-hydrophobic properties of composite films were investigated. Tension test results show that the incorporation of TP in the PHBV matrix can enhance the toughness of the composite films. Differential scanning calorimetric (DSC) studies show that there is a single glass transition temperature and the lower melting point temperature. Fourier transform infrared (FT-IR) results confirm that the intermolecular hydrogen bonding interactions in composite films. Contact angle measurements show that the hydrophilicity of TP/PHBV composite films can be controlled through adjusting the composition of TP.

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“…elastomer [13] polyaniline [14]. These blending composites can improve physical properties by some extent and reduce the cost, but also there are some problems in compatibility.…”

mentioning

confidence: 99%

Structural characteristics and enhanced mechanical and thermal properties of full biodegradable tea polyphenol/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) composite films

Chen¹,

Cheng²,

Zhu³

et al. 2013

Express Polym. Lett.

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“…It may be functionalized on purpose or mixed with suitable chemical compounds to make it chemically attractive as a sensor. In literature, nanofibres of biodegradable poly(3-hydroxybutyrate) blends having 8-55% acid-doped polyaniline (70-100 nm in diameter) have been prepared and their biodegradability investigated [28]. The most common electrodes used for manufacturing conductometric sensors are interdigitated electrodes (IDEs) that are implemented over insulating and flat substrates (like alumina, silicon dioxide wafers, etc.)…”

Section: Introductionmentioning

confidence: 99%

Humidity effects on a novel eco-friendly chemosensor based on electrospun PANi/PHB nanofibres

Macagnano

Perri

Zampetti

et al. 2016

Sensors and Actuators B: Chemical

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“…For many years, biopolymers have been widely used in medicine as substitutes for natural tissues due to their biodegradability, biocompatibility, and thermoplastic properties [1,2]. Some of the most commonly used polymers in biomedical application are polylactide, polyglycolide and more recently polyhydroxyalkanoates (PHAs) [1,3]. PHAs are bacterial polyesters that are synthetized by a large number of microorganisms under specific cultivation conditions.…”

Section: Introductionmentioning

confidence: 99%

Design and Characterization of Conductive Biopolymer Nanocomposite Electrodes for Medical Applications

Tematio

Bassas-Galià

Fosso

et al. 2016

MSF

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Metal-based electrodes, despite being the most widely used for biomedical applications, are limited by a poor reliable skin-surface interface and patients suffer from comfort issues. The most common problems/inconveniences are caused by stiff electrodes, skin irritation, allergic reaction or corrosion. In order to overcome these problems, we produced and tested flexible electrodes involving biopolymer nanocomposite materials. Conductive polymers have been intensively studied and applied in the field of organic photovoltaics and flexible organic electronics. Recently, the use of conductive biopolymer nanocomposite has also emerged as an interesting and promising material for biomedical applications. In this study, we have designed and characterized electrodes made of a flexible and conductive nanocomposite material using a biocompatible and biodegradable polymeric matrix of poly (3-hydroxyalkanoate) (PHA, in particular poly (3-hydroxybutyrate), PHB) containing conductive nanowires. The biopolymer nanocomposites and their electrical conductivities were investigated by optical microscopy, scanning electron microscopy (SEM) and electrical four-point probing. The electrical conductivities obtained in the different PHA-polymer nanocomposites containing different concentrations of conductive additives is discussed in relation to the nanocomposite structure at the microscopic level. Finally, our developed biopolymer nanocomposite prototype electrodes have successfully been tested for transcutaneous electrical nerve stimulation (TENS) and electrocardiography ECG applications in comparison to conventional electrodes.

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Biodegradable conductive composites of poly(3-hydroxybutyrate) and polyaniline nanofibers: Preparation, characterization and radiolytic effects

Cited by 30 publications

References 53 publications

Structural characteristics and enhanced mechanical and thermal properties of full biodegradable tea polyphenol/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) composite films

Structural characteristics and enhanced mechanical and thermal properties of full biodegradable tea polyphenol/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) composite films

Humidity effects on a novel eco-friendly chemosensor based on electrospun PANi/PHB nanofibres

Design and Characterization of Conductive Biopolymer Nanocomposite Electrodes for Medical Applications

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