Electrospun magnetoactive hybrid P(VDF-TrFE) scaffolds heavily loaded with citric-acid-modified magnetite nanoparticles
| Parent link: | Polymer.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 296.— 2024.— Article number 126765, 14 p. |
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| Institution som forfatter: | |
| Andre forfattere: | , , , , , , , , |
| Summary: | Title screen The development of magnetoactive scaffolds based on piezoelectric polymers is of great interest due to their ability to exert a magnetoelectric effect, their flexibility, and biocompatibility in various prospective applications. This study describes fabrication of novel electrospun magnetoactive scaffolds based on poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)] loaded with a high content (20 or 25 wt%) of magnetite nanoparticles modified by citric acid (Fe3O4-CA) and data on their structure and physicochemical, mechanical, and magnetic properties as well as a piezoelectric response. The suspension method gave a uniform nanoparticles' distribution in the electrospun scaffolds without any noticeable agglomeration. Raman and infrared spectroscopy and X-ray diffraction analysis indicated that the fabricated pure scaffolds and composite P(VDF-TrFE)/Fe3O4-CA scaffolds contain both piezoactive phases (β and γ). The composite scaffolds doped with 20 or 25 wt% of Fe3O4-CA nanoparticles were found to have the highest saturation magnetization, 12.7 and 14.1 emu/g, respectively, superior to that of other PVDF-Fe3O4–based magnetoactive scaffolds. Besides, the incorporation of 20 or 25 wt% of Fe3O4-CA nanoparticles substantially decreased total crystallinity of the piezopolymer scaffolds from 60.7% to 46.9% and 42.7%, respectively. Addition of 20 wt% of Fe3O4-CA nanoparticles also diminished ultimate strength and Young's modulus but improved elongation at break. Meanwhile, in composite P(VDF-TrFE)/Fe3O4-CA scaffolds loaded with 20 wt% of the magnetic filler, the piezoresponse was similar to that of pure P(VDF-TrFE) scaffolds. Such changes in properties are explained by the interaction between P(VDF-TrFE) polymer chains and the surface of Fe3O4-CA nanoparticles via hydrogen bonds and dipolar bonds. Текстовый файл AM_Agreement |
| Sprog: | engelsk |
| Udgivet: |
2024
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| Fag: | |
| Online adgang: | https://doi.org/10.1016/j.polymer.2024.126765 |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=673707 |
MARC
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| 200 | 1 | |a Electrospun magnetoactive hybrid P(VDF-TrFE) scaffolds heavily loaded with citric-acid-modified magnetite nanoparticles |f Vladimir V. Botvin, Lada E. Shlapakova, Yulia R. Mukhortova [et al.] | |
| 203 | |a Текст |c электронный |b визуальный | ||
| 283 | |a online_resource |2 RDAcarrier | ||
| 300 | |a Title screen | ||
| 320 | |a References: 70 tit. | ||
| 330 | |a The development of magnetoactive scaffolds based on piezoelectric polymers is of great interest due to their ability to exert a magnetoelectric effect, their flexibility, and biocompatibility in various prospective applications. This study describes fabrication of novel electrospun magnetoactive scaffolds based on poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)] loaded with a high content (20 or 25 wt%) of magnetite nanoparticles modified by citric acid (Fe3O4-CA) and data on their structure and physicochemical, mechanical, and magnetic properties as well as a piezoelectric response. The suspension method gave a uniform nanoparticles' distribution in the electrospun scaffolds without any noticeable agglomeration. Raman and infrared spectroscopy and X-ray diffraction analysis indicated that the fabricated pure scaffolds and composite P(VDF-TrFE)/Fe3O4-CA scaffolds contain both piezoactive phases (β and γ). The composite scaffolds doped with 20 or 25 wt% of Fe3O4-CA nanoparticles were found to have the highest saturation magnetization, 12.7 and 14.1 emu/g, respectively, superior to that of other PVDF-Fe3O4–based magnetoactive scaffolds. Besides, the incorporation of 20 or 25 wt% of Fe3O4-CA nanoparticles substantially decreased total crystallinity of the piezopolymer scaffolds from 60.7% to 46.9% and 42.7%, respectively. Addition of 20 wt% of Fe3O4-CA nanoparticles also diminished ultimate strength and Young's modulus but improved elongation at break. Meanwhile, in composite P(VDF-TrFE)/Fe3O4-CA scaffolds loaded with 20 wt% of the magnetic filler, the piezoresponse was similar to that of pure P(VDF-TrFE) scaffolds. Such changes in properties are explained by the interaction between P(VDF-TrFE) polymer chains and the surface of Fe3O4-CA nanoparticles via hydrogen bonds and dipolar bonds. | ||
| 336 | |a Текстовый файл | ||
| 371 | 0 | |a AM_Agreement | |
| 461 | 1 | |t Polymer |c Amsterdam |n Elsevier Science Publishing Company Inc. | |
| 463 | 1 | |t Vol. 296 |v Article number 126765, 14 p. |d 2024 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a P(VDF-TrFE) | |
| 610 | 1 | |a Magnetite | |
| 610 | 1 | |a Electrospinning | |
| 610 | 1 | |a Modification | |
| 610 | 1 | |a Magnetoactive scaffold | |
| 610 | 1 | |a Mechanical properties | |
| 701 | 1 | |a Botvin |b V. V. |c chemist |c Senior Researcher of Tomsk Polytechnic University, Candidate of chemical sciences |f 1991- |g Vladimir Viktorovich |9 22791 | |
| 701 | 1 | |a Shlapakova |b L. E. |c chemical engineer |c Research Engineer of Tomsk Polytechnic University |f 1999- |g Lada Evgenievna |y Tomsk |9 88580 | |
| 701 | 1 | |a Mukhortova |b Yu. R. |c Chemical engineer |c Engineer of Tomsk Polytechnic University |f 1976- |g Yulia Ruslanovna |9 22264 | |
| 701 | 1 | |a Vagner |b D. V. |g Dmitry Viktorovich | |
| 701 | 1 | |a Gerasimov |b E. Yu. |g Evgeny | |
| 701 | 1 | |a Romanyuk |b K. N. |g Konstantin Nikolaevich | |
| 701 | 1 | |a Surmeneva |b M. A. |c specialist in the field of material science |c engineer-researcher of Tomsk Polytechnic University, Associate Scientist |f 1984- |g Maria Alexandrovna |9 15966 | |
| 701 | 1 | |a Kholkin |b A. L. |c physicist |c Director of the International Research Center for PMEM of the Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1954- |g Andrei Leonidovich |9 22787 | |
| 701 | 1 | |a Surmenev |b R. A. |c physicist |c Associate Professor of Tomsk Polytechnic University, Senior researcher, Candidate of physical and mathematical sciences |f 1982- |g Roman Anatolievich |9 15957 | |
| 712 | 0 | 2 | |a National Research Tomsk Polytechnic University |9 27197 |4 570 |
| 801 | 0 | |a RU |b 63413507 |c 20240712 |g RCR | |
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