Electrospun poly(3-hydroxybutyrate-co-3-hydroxy-valerate)/cellulose reinforced nanofibrous membranes with ZnO nanocrystals for antibacterial wound dressings

Abdalkarim, Somia Yassin Hussain; Yu, Haiyue; Wang, Duan-Chao; Yao, Juming

doi:10.1007/s10570-017-1303-0

Cited by 86 publications

(31 citation statements)

References 42 publications

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“…In this regard, recent studies focused on the wound dressing application of these nanocomposites. For example, Abdalkarim et al reported the potential of cellulose nanocrystal-ZnO nanohybrids (CNC-ZnO) incorporated in PHBV electrospun fibers at different concentrations (3-15 wt%) for antibacterial wound dressings [154]. Results showed that the presence of CNCs-ZnO inside the fibers led to a reduction in fiber diameter and crystallinity and increased the porosity, thermal stability, and mechanical stiffness of the fibrous meshes, especially for 5 wt% CNC-ZnO, with respect to the pure ones reporting an increase of 150% in tensile strength and 112.5% in Young's modulus.…”

Section: Application Of Pha Electrospun Fibers In Wound Healingmentioning

confidence: 99%

“…Results showed that the presence of CNCs-ZnO inside the fibers led to a reduction in fiber diameter and crystallinity and increased the porosity, thermal stability, and mechanical stiffness of the fibrous meshes, especially for 5 wt% CNC-ZnO, with respect to the pure ones reporting an increase of 150% in tensile strength and 112.5% in Young's modulus. Furthermore, enhanced absorbency capacity of the fresh blood model (4 g/g for PHBV meshes and 8.4 g/g for the membrane with 5 wt% CNC-ZnO), better barrier properties, and excellent antimicrobial activity were observed in CNC-ZnO/loaded PHBV fibers [154,155]. The inclusion of natural bioactive substances into PHA nano/micro-fibers have also been explored.…”

Section: Application Of Pha Electrospun Fibers In Wound Healingmentioning

confidence: 99%

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Bio-Based Electrospun Fibers for Wound Healing

Azimi

Maleki

Zavagna

et al. 2020

JFB

148

106

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Being designated to protect other tissues, skin is the first and largest human body organ to be injured and for this reason, it is accredited with a high capacity for self-repairing. However, in the case of profound lesions or large surface loss, the natural wound healing process may be ineffective or insufficient, leading to detrimental and painful conditions that require repair adjuvants and tissue substitutes. In addition to the conventional wound care options, biodegradable polymers, both synthetic and biologic origin, are gaining increased importance for their high biocompatibility, biodegradation, and bioactive properties, such as antimicrobial, immunomodulatory, cell proliferative, and angiogenic. To create a microenvironment suitable for the healing process, a key property is the ability of a polymer to be spun into submicrometric fibers (e.g., via electrospinning), since they mimic the fibrous extracellular matrix and can support neo- tissue growth. A number of biodegradable polymers used in the biomedical sector comply with the definition of bio-based polymers (known also as biopolymers), which are recently being used in other industrial sectors for reducing the material and energy impact on the environment, as they are derived from renewable biological resources. In this review, after a description of the fundamental concepts of wound healing, with emphasis on advanced wound dressings, the recent developments of bio-based natural and synthetic electrospun structures for efficient wound healing applications are highlighted and discussed. This review aims to improve awareness on the use of bio-based polymers in medical devices.

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Section: Application Of Pha Electrospun Fibers In Wound Healingmentioning

confidence: 99%

Section: Application Of Pha Electrospun Fibers In Wound Healingmentioning

confidence: 99%

Bio-Based Electrospun Fibers for Wound Healing

Azimi

Maleki

Zavagna

et al. 2020

JFB

148

106

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“…The mechanical properties of the electrospun fibers were studied with tensile stress-strain tests [44,45]. As shown in Fig.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Electrospun Polyethylene Glycol/Polyvinyl Alcohol Composite Nanofibrous Membranes as Shape-Stabilized Solid–Solid Phase Change Materials

Huang

Abdalkarim

et al. 2020

Adv. Fiber Mater.

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In this work, shape-stabilized solid-solid phase change materials (PCMs) were fabricated by simply electrospinning polyethylene glycol (PEG) and polyvinyl alcohol (PVA). Owing to the strong hydrogen bonds and entanglement between those molecular chains of PEG and PVA, PEG was packaged by PVA. The morphological structures, thermal stability and thermal energy storage properties of those fibers were investigated. SEM results showed that those electrospun PVA/PEG composite membranes hold a three-dimensional nonwoven web structure even the content of PEG as high as 70%. The thermal energy storage ability of those composite fibers increased with the increase of the content of PEG. The heat enthalpies of PEG/ PVA = 7/3 were as high as 78.806 J/g. Moreover, those composite fibers had excellent thermal stability. After 100 heating and cooling cycles, there was almost no obvious change in the melting enthalpy and crystallization enthalpy. Those fibers still maintained good thermal regulation. The simple preparation process, low cost of raw materials and excellent stability endow the PCMs great utilization potentiality in smart textile and energy storage systems.

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“…However, the service life of conventional hydrogel is short due to its poor mechanical strength. The mechanical strength and self-healing properties of hydrogel can be enhanced by cellulose nanocrystals (CNCs) due to their highly crystalline and nontoxic nanorods characteristics [ 181 ]. Bai et al reported the preparation of self-healing nanocomposite hydrogels based on modified CNCs [ 182 ].…”

Section: The Metal-free Catalyst Mediated Atrp Systemmentioning

confidence: 99%

Development of Environmentally Friendly Atom Transfer Radical Polymerization

et al. 2020

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Atom transfer radical polymerization (ATRP) is one of the most successful techniques for the preparation of well-defined polymers with controllable molecular weights, narrow molecular weight distributions, specific macromolecular architectures, and precisely designed functionalities. ATRP usually involves transition-metal complex as catalyst. As the most commonly used copper complex catalyst is usually biologically toxic and environmentally unsafe, considerable interest has been focused on iron complex, enzyme, and metal-free catalysts owing to their low toxicity, inexpensive cost, commercial availability and environmental friendliness. This review aims to provide a comprehensive understanding of iron catalyst used in normal, reverse, AGET, ICAR, GAMA, and SARA ATRP, enzyme as well as metal-free catalyst mediated ATRP in the point of view of catalytic activity, initiation efficiency, and polymerization controllability. The principle of ATRP and the development of iron ligand are briefly discussed. The recent development of enzyme-mediated ATRP, the latest research progress on metal-free ATRP, and the application of metal-free ATRP in interdisciplinary areas are highlighted in sections. The prospects and challenges of these three ATRP techniques are also described in the review.

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Electrospun poly(3-hydroxybutyrate-co-3-hydroxy-valerate)/cellulose reinforced nanofibrous membranes with ZnO nanocrystals for antibacterial wound dressings

Cited by 86 publications

References 42 publications

Bio-Based Electrospun Fibers for Wound Healing

Bio-Based Electrospun Fibers for Wound Healing

Electrospun Polyethylene Glycol/Polyvinyl Alcohol Composite Nanofibrous Membranes as Shape-Stabilized Solid–Solid Phase Change Materials

Development of Environmentally Friendly Atom Transfer Radical Polymerization

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