Nanocomposite foams based on flexible biobased thermoplastic polyurethane and ZnO nanoparticles as potential wound dressing materials

Bužarovska, Aleksandra; Dinescu, Sorina; Lazăr, Andreea Daniela; Serban, Mirela; Pîrcălăbioru, Grațiela Grădișteanu; Costache, Marieta; Gualandi, Chiara; Avérous, Luc

doi:10.1016/j.msec.2019.109893

Cited by 81 publications

(58 citation statements)

References 44 publications

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“…Nanocomposites based upon ZnO-NPs are widely used for the development of different optoelectronic, electronic, sensors, collar cells, etc., devices (see, for example [ 1 , 2 , 3 ]). Recently, there were published significant publications about the potential use of ZnO-NPs that include flexible devices such as supercapacitance [ 4 ], flexible piezoelectric nanogenerators with ZnO-polyvinylidene fluoride (PVDF) [ 5 , 6 ], piezoelectric vibration sensors based on polydimethylsiloxane (PDMS) and ZnO nanoparticle [ 7 ], soft thermoplastic material with polyurethane matrix [ 8 ], poly (ethylene oxide) and poly (vinyl pyrrolidone) blend matrix incorporated with zinc oxide (ZnO) nanoparticles for optoelectronic and microelectronic devices [ 9 ], gate transistors with ZnO and ethyl cellulose [ 10 ], chitosan-ZnO (CS-ZnO) nanocomposite for packing applications [ 11 , 12 , 13 ], CS-ZnO as antibacterial agent [ 13 , 14 , 15 ], and CS-ZnO nanocomposite for supercapacitor [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Chitosan-ZnO Nanocomposites Assessed by Dielectric, Mechanical, and Piezoelectric Properties

et al. 2020

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The aim of this work is to structurally characterize chitosan-zinc oxide nanoparticles (CS-ZnO NPs) films in a wide range of NPs concentration (0–20 wt.%). Dielectric, conductivity, mechanical, and piezoelectric properties are assessed by using thermogravimetry, FTIR, XRD, mechanical, and dielectric spectroscopy measurements. These analyses reveal that the dielectric constant, Young’s modulus, and piezoelectric constant (d33) exhibit a strong dependence on nanoparticle concentration such that maximum values of referred properties are obtained at 15 wt.% of ZnO NPs. The piezoelectric coefficient d33 in CS-ZnO nanocomposite films with 15 wt.% of NPs (d33 = 65.9 pC/N) is higher than most of polymer-ZnO nanocomposites because of the synergistic effect of piezoelectricity of NPs, elastic properties of CS, and optimum NPs concentration. A three-phase model is used to include the chitosan matrix, ZnO NPs, and interfacial layer with dielectric constant higher than that of neat chitosan and ZnO. This layer between nanoparticles and matrix is due to strong interactions between chitosan’s side groups with ZnO NPs. The understanding of nanoscale properties of CS-ZnO nanocomposites is important in the development of biocompatible sensors, actuators, nanogenerators for flexible electronics and biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Chitosan-ZnO Nanocomposites Assessed by Dielectric, Mechanical, and Piezoelectric Properties

et al. 2020

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“…Completely different methods, such as (I) monomer mixing and bubble nucleation, (II) foam rising, (III) phase separation and cell opening, and (IV) foam formation, are used during the preparation of PU/ZnO composite foam [ 38 , 68 ].…”

Section: Pu/zno Composite Dispersion Preparationmentioning

confidence: 99%

“…Blending is a physical particle mixing process in polymer dispersion without any post-polymerization. Most of the reported [ 31 , 33 , 34 , 36 , 37 , 39 , 40 , 41 , 44 , 46 , 47 , 49 , 50 , 51 , 53 , 54 , 56 , 57 , 59 , 60 , 61 , 64 , 68 , 69 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 85 , 86 , 87 , 89 , 90 , 91 , 92 , 93 ] PU/ZnO composite dispersions are prepared by following this process (see Table 2 , Table 3 and Table 4 ). In this process, the prepared PU dispersion (synthesized or collected from commercial grade) is blended with different ZnO contents, to prepare the target PU/ZnO composite (see Scheme 2 ).…”

Section: Pu/zno Composite Dispersion Preparationmentioning

confidence: 99%

“…The prepared PU/ZnO dispersion is used to make different composite film/coating/membrane for varieties application (see Table 1 ). The composite film/coating/membrane are formed by applying different methods, such as solution casting [ 31 , 34 , 36 , 37 , 51 , 91 ], dip coating [ 33 , 60 , 92 ], a Meyer rod method [ 76 ], spraying [ 40 , 46 , 61 , 79 ], spin coating [ 43 , 54 , 77 , 85 ], electrocoating [ 53 , 87 ], an automatic applicator method [ 78 ], a spiral applicator method [ 86 ], a freeze-extraction method [ 68 ], electrospinning [ 49 ], dipping [ 67 ], a solvent evaporation method [ 58 ], a hot press method [ 63 , 70 ], a high volume low pressure (HVLP) method [ 69 ], compression molding [ 48 ] and a drawdown method [ 59 ]. In most of the cases, the defined amount of dispersion poured into the substrate and kept an ambient condition to dry it completely.…”

Section: Pu/zno Composite Dispersion Preparationmentioning

confidence: 99%

“…In the last two decades, a significant property improvement has been found by using the above metal oxides nanoparticles in the PU matrix. In particular, ZnO nanoparticle enhances the material properties and is being used in many different areas [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 ].…”

Section: Introductionmentioning

confidence: 99%

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Polyurethane/Zinc Oxide (PU/ZnO) Composite—Synthesis, Protective Property and Application

Rahman

2020

Polymers

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A polyurethane (PU) is a multifunctional polymer prepared by using more than two types of monomers. The unique properties of PU come from monomers, thus broadening the applicability of PU in many different sectors. The properties can be further improved by using many nanoparticles. Different metal oxides as nanoparticles are also widely used in PU materials. ZnO is a widely used inorganic metal oxide nanoparticle for improving polymer properties. In this review article, the techniques to prepare a PU/ZnO composite are reviewed; the key protective properties, such as adhesive strength and self-healing, and applications of PU/ZnO composites are also highlighted. This review also highlights the PU/ZnO composite’s current challenges and future prospects, which will help to broaden the composite practical application by preparing environmentally friendly composites.

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Polyurethane‐basedcomposites with promising antibacterial properties

Kasi

Sathishkumar

Zhang

et al. 2022

J of Applied Polymer Sci

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Polyurethane (PU) is a well-known synthetic polymer consisting of isocyanates, polyols, and chain extenders. The incorporation of fillers into the PU polymeric matrix, including inorganic nanomaterials, synthetic polymers, natural components, quaternary ammonium salts, and commercial drugs, bestows the endproducts with unique and improved physicochemical properties. Fillers can be used to tailor the molecular orientation, crystallinity, cross-linking, and functional chemical groups of PU-based composites. The bactericidal ability of PU composites highly depends on their surface composition, morphology, charge, and stability. Recent advancements highlight the potential of PU composites in combating bacterial infections. In this review, the cutting-edge of inorganic and organicbased PU composites for antibacterial applications is addressed. Notably, selective examples of scientific reports' key findings and their crucial information on PU composites are discussed. Furthermore, the positive impact of PU composites on the future prospects of this field is explored. This review comprehensively deliberates the values of PU composites towards practical applications in the biomedical field of antibacterial activity. This review can help researchers to gain widespread knowledge and a better understanding of PU composites for antibacterial applications.

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Nanocomposite foams based on flexible biobased thermoplastic polyurethane and ZnO nanoparticles as potential wound dressing materials

Cited by 81 publications

References 44 publications

Chitosan-ZnO Nanocomposites Assessed by Dielectric, Mechanical, and Piezoelectric Properties

Chitosan-ZnO Nanocomposites Assessed by Dielectric, Mechanical, and Piezoelectric Properties

Polyurethane/Zinc Oxide (PU/ZnO) Composite—Synthesis, Protective Property and Application

Polyurethane‐basedcomposites with promising antibacterial properties

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