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Electrospinning of polyhydroxyalkanoate fibrous scaffolds: effects on electrospinning parameters on structure and properties [Text] / T. . Volova [et al.] // J. Biomater. Sci.-Polym. Ed. - 2014. - Vol. 25, Is. 4. - P370-393, DOI 10.1080/09205063.2013.862400. - Cited References: 52. - This study was financially supported by Project 'Biotechnologies of novel biomaterials: innovative biopolymers and devices for biomedicine' (Agreement No. 1 of 15.02.2013 to Agreement No. 11.G34.31.0013) in accordance with Resolution No. 220 of the Government of the Russian Federation of April 9, 2010, 'On measures designed to attract leading scientists to the Russian institutions of higher learning' and Grant of the RF President for supporting young Doctors of Sciences No. MD-3112.2012.4. . - ISSN 0920-5063

РУБ Engineering, Biomedical + Materials Science, Biomaterials + Polymer Science
Рубрики:
TISSUE ENGINEERING APPLICATIONS
   FIBER MATS
   POLY 3-HYDROXYBUTYRATE
   POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE)
   BIOCOMPATIBILITY
   PROLIFERATION
   FABRICATION
   NANOFIBERS
   COPOLYMERS
   MEMBRANES
Кл.слова (ненормированные):
electrospinning -- polyhydroxyalkanoates -- ultrafine fibers -- physical-mechanical properties -- fibroblast cells
Аннотация: In this study, electrospinning was used to prepare ultrafine fibers from PHAs with different chemical compositions: P(3HB) and copolymers: P(3HB-co-4HB), P(3HB-co-3HV), and P(3HB-co-3HHx). The main process parameters that influence ultrafine fiber diameter and properties (polymer concentration, solution feeding rate, working distance, and applied voltage) have been investigated and their effects evaluated. The study revealed electrospinning parameters for the production of high-quality ultrafine fibers and determined which parameters should be varied to tailor the properties of the products. This study is the first to compare biological and physical-mechanical parameters of PHAs with different chemical compositions as dependent upon the fractions of monomers constituting the polymers and ultrafine fiber orientation. Mechanical strength of aligned ultrafine fibers prepared from different PHAs is higher than that of randomly oriented ones; no significant effect of ultrafine fiber orientation on surface properties has been found. None of the fibrous scaffolds produced by electrospinning from PHAs had any adverse effects on attachment, growth, and viability of NIH 3T3 mouse fibroblast cells, and all of them were found to be suitable for tissue engineering applications.

WOS,
Scopus
Держатели документа:
[Volova, Tatiana
Sukovatyi, Aleksey
Nikolaeva, Elena] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
[Goncharov, Dmitriy
Shishatskaya, Ekaterina] Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Krasnoyarsk 660041, Russia
[Shabanov, Alexander] Russian Acad Sci, LV Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
ИБФ СО РАН
ИФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Volova, T...; Goncharov, D...; Sukovatyi, A...; Shabanov, A...; Nikolaeva, E...; Shishatskaya, E...; Project 'Biotechnologies of novel biomaterials: innovative biopolymers and devices for biomedicine' [1, 11.G34.31.0013]; Government of the Russian Federation [220]; RF President for supporting young Doctors of Sciences [MD-3112.2012.4]

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Electrospinning of degradable phas: Process, properties, applications / T. G. Volova [et al.] // : Nova Science Publishers, Inc., 2017. - P1-56
Кл.слова (ненормированные):
Biological and physical/mechanical properties -- Cell proliferation -- Electrospinning -- Nonwoven membranes -- Pha -- Scaffolds -- Skin regeneration -- Ultrafine fibers -- Wound dressings
Аннотация: An integrated study has been performed to investigate the process of formation of ultrafine fibers and nonwoven membranes by electrospinning from natural degradable polymers-polyhydroxyalkanoates (PHAs); physical, mechanical, and biological properties of the products have been studied. Then, electrospinning was used to prepare ultrafine fibers from PHAs with different compositions: P(3HB) and its copolymers P(3HB-co-4HB), P(3HB-co-3HV), and P(3HB-co-3HHx). The main process parameters, that influence UF-fiber diameter and properties of fibrous non-woven membranes) (polymer concentration, solution feeding rate, working distance, and applied voltage), were investigated and their effects evaluated. This study was the first to compare biological and physical/mechanical parameters of PHAs with different chemical compositions as dependent upon the fractions of monomers, constituting the polymers and fiber orientation. Electrospun polymer membranes, prepared from the [P(3HB-co-4HB)], were tested as wound dressings. The developed nonwoven membranes can be used as the equivalent of collagen skine dressings in the treatment of burns of degree II. Experiments on laboratory animals with model skin defects showed, that the membranes fitted the wound shape good, protected the wound from external influences, and facilitated wound healing, promoting fast repair. The successful experiments on laboratory animals were followed by pilot clinical trials of nanomembranes, comprised of PHA membranes as wound dressings in the treatment of septic wounds. During the regeneration phase, PHA membranes served as a scaffold for the new tissue on the skin and filled out soft tissue defects. The formation of the uniform and sufficiently vascularized tissue is a prerequisite for quicker wound healing and can serve as a basis for the subsequent skin grafting and spontaneous re-epithelialization of superficial wounds. The wound dressing, tested in this clinical trial, performs important physiological functions of natural skin, provides a barrier against secondary infection, reduces fluid loss, and, at the same time, does not keep the air out. © 2017 Nova Science Publishers, Inc.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Volova, T. G.; Goncharov, D. B.; Nikolaeva, E. D.; Shishatskaya, E. I.

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Extraction of Nanochitin from Marine Resources and Fabrication of Polymer Nanocomposites: Recent Advances / B. Joseph, R. M. Sam, P. Balakrishnan [et al.] // Polymers. - 2020. - Vol. 12, Is. 8. - Ст. 1664, DOI 10.3390/polym12081664. - Cited References:128. - This study was financially supported by project "Agro preparations of the new generation: a strategy of construction and realization" (agreement number 074-02-2018-328) in accordance with resolution number 220 of the Government of the Russian Federation of 9 April 2010, "On measures designed to attract leading scientists to the Russian institutions of higher learning." S.C.M.F. is the recipient of an E2S UPPA Research Partnership Chair (MANTA: Marine Materials) supported by the "Investissements d'Avenir" French program managed by ANR (ANR-16-IDEX-0002), the Region Nouvelle-Aquitaine and the Communaute d'Agglomeration du Pays Basque, France. . - ISSN 2073-4360

РУБ Polymer Science
Рубрики:
NATURAL-RUBBER NANOCOMPOSITES
ELECTROSPUN PVDF MEMBRANE
ALPHA-CHITIN
Кл.слова (ненормированные):
nanochitin -- biodegradable -- marine -- reinforcement -- polysaccharides
Аннотация: Industrial sea food residues, mainly crab and shrimp shells, are considered to be the most promising and abundant source of chitin. In-depth understanding of the biological properties of chitin and scientific advancements in the field of nanotechnology have enabled the development of high-performance chitin nanomaterials. Nanoscale chitin is of great economic value as an efficient functional and reinforcement material for a wide range of applications ranging from water purification to tissue engineering. The use of polymers and nanochitin to produce (bio) nanocomposites offers a good opportunity to prepare bioplastic materials with enhanced functional and structural properties. Most processes for nanochitin isolation rely on the use of chemical, physical or mechanical methods. Chitin-based nanocomposites are fabricated by various methods, involving electrospinning, freeze drying, etc. This review discusses the progress and new developments in the isolation and physico-chemical characterization of chitin; it also highlights the processing of nanochitin in various composite and functional materials.

WOS
Держатели документа:
Mahatma Gandhi Univ, Int & Inter Univ Ctr Nanosci & Nanotechnol, Kottayam 686560, Kerala, India.
Bishop Moore Coll, Res & Post Grad Dept Chem, Mavelikara 690110, Kerala, India.
Plant Lipids Pvt Ltd, Cochin 682311, Kerala, India.
Siberian Fed Univ, Russian Acad Sci, Inst Biophys, Krasnoyarsk 660041, Russia.
Univ Pau & Pays Adour, Inst Interdisciplinary Res Environm & Mat IPREM, IPREM, CNRS,E2S UPPA, F-64600 Anglet, France.
Mahatma Gandhi Univ, Sch Energy Mat, Kottayam 686560, Kerala, India.

Доп.точки доступа:
Joseph, Blessy; Sam, Rubie Mavelil; Balakrishnan, Preetha; Maria, Hanna J.; Gopi, Sreeraj; Volova, Tatiana; Fernandes, Susana C. M.; Thomas, Sabu; Government of the Russian Federation [074-02-2018-328, 220]; "Investissements d'Avenir" French programFrench National Research Agency (ANR) [ANR-16-IDEX-0002]; Region Nouvelle-AquitaineRegion Nouvelle-Aquitaine; Communaute d'Agglomeration du Pays Basque, France

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