Article
Engineering, Environmental
Chloe Bonnenfant, Lucile Chatellard, Nathalie Gontard, Chahinez Aouf
Summary: The study aimed to investigate the effect of two polyphenols on the biodegradability of PHBV. The results showed that the bacterial growth of PHBV-degrading bacteria was inhibited by the polyphenols. However, all the films produced were considered fully biodegradable, indicating that the use of polyphenolic additives does not hinder the biodegradation of PHBV in home compost.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Isabela F. Santos, Rodolfo M. Moraes, Simone F. Medeiros, Jaspreet K. Kular, Marcus A. Johns, Ram Sharma, Amilton M. Santos
Summary: Polymeric nanoparticles were developed without any matrix ligands on their surface to promote cell attachment and proliferation of human osteoblasts. The study demonstrated that cells readily attached and spread onto the nanoparticle surfaces compared to non-tissue culture polystyrene, indicating the potential of PHBV nanoparticles for cell attachment and growth in tissue engineering.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Polymer Science
Yue Yuan, Mary T. Fletcher, Bronwyn Laycock
Summary: In this study, melt-extruded biocomposites were prepared by combining Pimelea plant materials with the biodegradable biopolymer PHBV. The biodegradation and natural toxin release behaviors of these materials were investigated in the rumen environment. The findings will contribute to the development of rumino-reticulum devices and provide insights into the anaerobic biodegradation of PHBV-based biocomposites and the sorption effects of toxins in controlled release formulations.
EUROPEAN POLYMER JOURNAL
(2023)
Review
Engineering, Environmental
Mohammad I. Ibrahim, Diya Alsafadi, Khalid A. Alamry, Mahmoud A. Hussein
Summary: PHBV, a biopolyester with biodegradability, biocompatibility, and being biobased, shows great potential to replace conventional non-degradable polymers. Its weaknesses in mechanical properties and processability drive research towards developing composite materials for various applications.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Microbiology
Haibo Yang, Junyu Chen, Ruchira Mitra, Qiong Xue, Hua Xiang, Jing Han
Summary: Deleting chromosomal origins can reduce DNA content and ploidy number in Haloferax mediterranei, leading to larger cell size and increased PHBV production. Transcriptome analysis shows downregulation of genes involved in primary metabolism and upregulation of genes related to starch utilization and PHBV monomer precursor supply.
MICROBIOLOGY SPECTRUM
(2022)
Article
Chemistry, Applied
Teresa Marques-Almeida, Senentxu Lanceros-Mendez, Clarisse Ribeiro
Summary: Biocompatible and electroactive polymers are required for tissue engineering applications to produce active scaffolds. Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) meets these requirements and its processing and properties were investigated in this study. The developed PHBV fibers showed bioactivity by mineralizing carbonated hydroxyapatite and partially degrading after 60 days in contact with simulated body fluid, indicating their suitability for bone tissue engineering.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Biochemistry & Molecular Biology
Viviana Urtuvia, Belen Ponce, Rodrigo Andler, Alvaro Diaz-Barrera
Summary: This study evaluated PHBV films with different 3-hydroxyvalerate (3HV) contents produced by Azotobacter vinelandii OP. The results showed that a higher 3HV content improved the thermomechanical properties of PHBV films, reduced the polymer melting point, and affected the tensile strength. Additionally, thermomechanical properties played an important role in biodegradation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Multidisciplinary
Haonan Sheng, Zijian Zhou, Haikuo Yan, Yuyuan Yao, Li Zhang
Summary: In this study, PBAT foams with good dimensional stability were prepared by optimizing the blending ratios and foaming conditions. The presence of PHBV in PBAT melt improved the stiffness of the cell walls and facilitated the open-cell structure, resulting in lower shrinkage ratio and higher expansion ratio.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Polymer Science
Ariagna L. Rivera-Briso, Jose Luis Aparicio-Collado, Roser Sabater i Serra, Angel Serrano-Aroca
Summary: This study investigates the effect of incorporating low amounts of carbon nanomaterials into the PHBV polymer matrix on its degradation properties. It is found that hydrophobic carbon nanofibers significantly enhance the degradation of PHBV, while hydrophilic graphene oxide exhibits lower degradation potential.
Article
Polymer Science
Rushabh Patel, Davide Monticone, Mingyuan Lu, Lisbeth Grondahl, Han Huang
Summary: The long-term hydrolytic degradation of SLS PHBV bone scaffolds was explored by incubating them in PBS solution for 20 weeks. The degradation occurred predominantly by bulk degradation, leading to reduction in molecular weight and compressive stiffness while increasing crystallinity. The weight loss was minimal in the first 8 weeks, with gradual increase thereafter, and the concentration of COOH groups on the scaffold surface initially increased before declining due to surface erosion from hydrolysis.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Chemistry, Multidisciplinary
Pedro A. V. Freitas, Hector Barrrasa, Fatima Vargas, Daniel Rivera, Maria Vargas, Sergio Torres-Giner
Summary: This study explores the potential use of atomization process to disperse cellulose structures into biodegradable polymer films, aiming to develop sustainable green composite materials for food packaging applications. The incorporation of cellulose microstructures improves the thermal stability, mechanical strength and ductility, and barrier performance of the films against gases and aroma vapors.
APPLIED SCIENCES-BASEL
(2022)
Review
Biochemistry & Molecular Biology
Ana Isabel Rodriguez-Cendal, Ivan Gomez-Seoane, Francisco Javier de Toro-Santos, Isaac Manuel Fuentes-Boquete, Jose Senaris-Rodriguez, Silvia Maria Diaz-Prado
Summary: Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a versatile biopolymer that has gained recognition in the biomedical field. It has shown potential for drug encapsulation, offering controlled release and improved therapeutic efficiency. Additionally, PHBV has been utilized as a scaffold material for tissue engineering, providing enhanced mechanical properties and compatibility. This review emphasizes the promising role of PHBV in drug delivery and scaffold fabrication, showcasing its potential in advancing biomedical applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Multidisciplinary Sciences
Kjeld W. Meereboer, Akhilesh K. Pal, Erick O. Cisneros-Lopez, Manjusri Misra, Amar K. Mohanty
Summary: Research has shown that biocomposites with proteinaceous fillers (DDGS) exhibit better marine biodegradability than those with miscanthus, with PHBV/DDGS (75/25) composites being biodegraded in 295 days.
SCIENTIFIC REPORTS
(2021)
Article
Polymer Science
Jingjing Mai, Steven Pratt, Bronwyn Laycock, Clement Matthew Chan
Summary: This study explores the synthesis of industrially relevant high-molecular-weight block copolymers PHBV-b-PHBV using high molecular weight hydroxy-functionalised PHBV starting materials coupled with facile diisocyanate chemistry. Two-step synthesis approach and one-step approach were compared, and both successfully produced block copolymers. However, the two-step synthesis was less effective in building molecular weight. Both synthetic approaches were affected by additional isocyanate reactions resulting in the formation of by-products, affecting the product performance.
Article
Pharmacology & Pharmacy
Wei-Lin Zhang, Zhi-Wen Dai, Si-Yuan Chen, Wei-Xiong Guo, Zhong-Wei Wang, Jin-Song Wei
Summary: In this study, a multifunctional scaffold material, PHBV-mPEG5k (PP5), was prepared and loaded with melatonin (MT) to achieve desired bone tissue repair and anti-tumor properties. The results showed that the MT loaded PP5 scaffold can effectively enhance the anti-tumor effect of melatonin and provide a therapeutic strategy for comprehensive postoperative treatment.
FRONTIERS IN PHARMACOLOGY
(2023)
Article
Polymer Science
Violette Bourg, Rudy Valette, Nicolas Le Moigne, Patrick Ienny, Valerie Guillard, Anne Bergeret
Summary: The rheological behavior of linear and branched polybutylene succinate blends were investigated under different processing conditions, revealing that a higher level of branching in the blend leads to increased relaxation time and improved strain hardening during uniaxial elongation. The 50/50 wt% blend exhibited similar behavior to linear polybutylene succinate under extensional flow, indicating potential benefits for processing.
Review
Polymer Science
Estelle Doineau, Bernard Cathala, Jean-Charles Benezet, Julien Bras, Nicolas Le Moigne
Summary: This review focuses on the development of hierarchical fibers by depositing nano-objects on their surface to tailor the fiber/matrix interface in (bio)composites, highlighting the potential of hierarchical fibers in enhancing structural performance of sustainable biocomposite materials. The study emphasizes that nano-objects coated on natural fibers can improve load transfer and interfacial adhesion, resulting in enhanced mechanical performance of biocomposites.
Article
Polymer Science
Julie Bossu, Nicolas Le Moigne, Philippe Dieudonne-George, Loic Dumazert, Valerie Guillard, Helene Angellier-Coussy
Summary: The study aimed to understand the influence of processing temperature on PHBV, and adjusting processing conditions based on HV content is critical to achieve functional properties for specific applications.
Article
Polymer Science
Ines Meyer zu Reckendorf, Amel Sahki, Didier Perrin, Clement Lacoste, Anne Bergeret, Avigael Ohayon, Karynn Morand
Summary: The objective of this study was to compare different chemical recycling methods for thermoplastic acrylate-based composites in terms of material recovery. The goal was to recover undamaged basalt fabrics for reuse as reinforcements in second-generation composites. Two protocols, ultrasound and mechanical stirring, were compared. It was found that the dissolution protocol using mechanical stirring was more effective in recovering undamaged fabrics with no residual resin. The mechanical properties of the second-generation composites were equivalent to those of the first-generation composites.
Article
Agricultural Engineering
Karina Antoun, Melek Ayadi, Roland El Hage, Michel Nakhl, Rodolphe Sonnier, Carole Gardiennet, Nicolas Le Moigne, Arnaud Besserer, Nicolas Brosse
Summary: An easy-to-use and environmentally friendly method is proposed to enhance the fire retardancy of natural fibers. The phosphorylation of hemp fibers using phytic acid and urea not only improves their non-flammability, but also affects their properties.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Slim Souissi, Ferdaous Lachtar, Ahmed Elloumi, Anne Bergeret
Summary: This study aimed to improve the compatibility and mechanical properties of polypropylene/olive wood flour (OWF) composites by using different treatment methods. Results showed that silane and heat treatments enhanced the thermal stability of OWF and heat treatment introduced higher toughness in the composites. Scanning electron microscopy analysis demonstrated the improved interfacial adhesion and mechanical properties by the treatments.
IRANIAN POLYMER JOURNAL
(2022)
Proceedings Paper
Polymer Science
Ismail Berrabah, Nadjet Dehouche, Mustapha Kaci, Stephane Bruzaud, Charles Henry Deguines, Christelle Delaite
Summary: The tensile and viscoelastic properties of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) are improved by adding zinc oxide nanoparticles, with the degree of improvement depending on the content of zinc oxide nanoparticles. However, at 3 wt%, the flexibility and toughness of the material decrease.
MACROMOLECULAR SYMPOSIA
(2022)
Proceedings Paper
Polymer Science
Nadjet Dehouche, Mustapha Kaci, Walter Wilhelm Focke, Liezel Van Der Merwe
Summary: The effect of various clays nanofillers on the photo-oxidation of polyamide 11 (PA11) was investigated. It was found that the nanocomposite samples exhibited faster oxidation kinetics compared to pure PA11, although this effect was less pronounced when sepiolite filler was used.
MACROMOLECULAR SYMPOSIA
(2022)
Proceedings Paper
Polymer Science
Celia Idres, Nadjet Dehouche, Mustapha Kaci, Carole Laine, Stephane Bruzaud
Summary: The development of new bio-based and biodegradable composites with enhanced performances is a efficient route to achieve a sustainable materials production. Biocomposite materials based on PHBHHx reinforced with Agave leaves fibers (ALF) were prepared by melt compounding at various filler content ratios, and the effect of ALF content on the material properties was evaluated based on thermal stability, tensile, and surface properties. The results show that the addition of ALF leads to reinforcement effect on PHBHHx, which is more pronounced at 30 wt%.
MACROMOLECULAR SYMPOSIA
(2022)
Proceedings Paper
Polymer Science
Lea Le Meur, Didier Perrin, Jean-Charles Benezet, Denis Jouannet, Thierry Falher, Anne Bergeret
Summary: This study adopts a mechanical recovery approach to handle waste polyethylene-based wood-plastic composites, and successfully recovers the bending properties of the waste material through reprocessing and the addition of compatibilizers, although the flexural strengths of the composites are not improved significantly.
MACROMOLECULAR SYMPOSIA
(2022)
Proceedings Paper
Polymer Science
Leila Hassaini, Mustapha Kaci, Nadjet Dehouche, Stephane Bruzaud
Summary: The objective of this work is to investigate the effect of using olive husk flour (OHF) as a biofiller on the marine degradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) biocomposites. The results show that the presence of OHF promotes the hydrolytic degradation of PHBV, especially at 40 degrees C. Additionally, the degraded samples exhibit eroded and cracked surfaces.
MACROMOLECULAR SYMPOSIA
(2022)
Article
Chemistry, Physical
Nedjma Tazibt, Mustapha Kaci, Nadjet Dehouche, Mohamed Ragoubi, Leonard Ionut Atanase
Summary: The effect of hydroxyapatite (HAp) synthesized by the chemical precipitation process on the morphology and properties of poly(lactic acid) (PLA)-based composites was investigated. It was found that the addition of 5 wt% HAp led to a slight improvement in the thermal stability and tensile properties of the composite material compared to neat PLA and other composite samples. The study also highlighted the potential use of HAp as a reinforcement in PLA composite materials.
Correction
Engineering, Manufacturing
William Garat, Nicolas Le Moigne, Stephane Corn, Johnny Beaugrand, Anne Bergeret
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Environmental Sciences
Julie Bossu, Jerome Moreau, Christine Delisee, Nicolas Le Moigne, Stephane Corn, Rodolphe Sonnier, Amandine Viretto, Jacques Beauchene, Bruno Clair
Summary: In French Guiana, the development of bio-circular value chains to convert residual biomass into insulation fiberboard represents a promising opportunity for energy-efficient construction. This study identified and characterized different wood and bark fibers from the residual biomass of local species. The findings showed that despite processing difficulties, bark fiberboards had the best insulation performance, better thermal stability and fire behavior compared to wood fibers, and a stronger water affinity, indicating potential interest for humidity regulation.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Chemistry, Applied
Elouan Guillou, Loic Dumazert, Celia Caer, Alexandre Beigbeder, Pierre Ouagne, Gwenn Le Saout, Johnny Beaugrand, Alain Bourmaud, Nicolas Le Moigne
Summary: The impact of temperature on the structure and mechanical properties of flax fibre cell walls was investigated in this study. The results showed that the mechanical performance and crystal structure of flax cell walls changed at high temperatures, but could recover to their original state after cooling to room temperature.
CARBOHYDRATE POLYMERS
(2023)
Article
Polymer Science
Tetsu Sato, Mariko Takahashi, Takeshi Saito, Masahito Toyonaga, Itsuo Tanuma, Rie Yamada, Satoru Hosoda
Summary: An automatic evaluation system for photooxidation has been developed and successfully applied to assess the photo-OIT of LDPE samples containing photooxidation stabilizers. The system allows independent setting of various measurement conditions and provides detailed information on the photooxidation process.
POLYMER DEGRADATION AND STABILITY
(2024)
Article
Polymer Science
Zongzheng Zuo, Shuxue Zhou
Summary: In this study, three fluoroalkyl trimethoxysilane (FATMS) additives with different chain lengths were incorporated into a two-component polyurethane clearcoat to improve its hydrophobic durability. The coatings modified with FATMS maintained their surface hydrophobicity under various conditions, but quickly lost it when exposed to both UV irradiation and/or high temperature with water. The results suggest that the FATMS route is more suitable for indoor applications at room temperature.
POLYMER DEGRADATION AND STABILITY
(2024)
Article
Polymer Science
Song Li, Feng Zhao, Xueya Wang, Zhihua Liu, Jingze Guo, Yutong Li, Shuangmei Tan, Zhenxiang Xin, Shuai Zhao, Lin Li
Summary: Green flame retardants have garnered attention for their environmental friendliness, but current options fall short in achieving high flame retardancy for flammable polymers and maintaining environmental protection. This study takes a two-pronged approach to address flame retardants and the flame-retardant process. An eco-friendly bio-based synergistic flame retardant (PAU), synthesized using phytic acid (PA) and urea (U), is used to create a flame retardant coating that can be directly applied to any surface shape using polydopamine as an adhesive. The resulting EPS-PAU exhibits excellent flame retardancy, smoke suppression, and light weight while only slightly increasing the density.
POLYMER DEGRADATION AND STABILITY
(2024)
