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1.


   
    Microparticles prepared from biodegradable polyhydroxyalkanoates as matrix for encapsulation of cytostatic drug / A. V. Murueva [et al.] // Journal of Materials Science: Materials in Medicine. - 2013. - Vol. 24, Is. 8. - P1905-1915, DOI 10.1007/s10856-013-4941-2 . - ISSN 0957-4530
Кл.слова (ненормированные):
3-hydroxybutyric acid -- Average diameter -- Cell attachments -- Chemical compositions -- Mass concentration -- Mouse-fibroblasts -- Polyhydroxyalkanoates -- Solvent evaporation techniques -- Biocompatibility -- Cell culture -- Cells -- Loading -- 3 hydroxybutyric acid -- 3 hydroxyhexanoic acid -- 4 hydroxybutyric acid -- 4',6 diamidino 2 phenylindole -- DNA -- doxorubicin -- nanoparticle -- polyhydroxyalkanoic acid -- polymer -- polystyrene -- solvent -- unclassified drug -- animal cell -- article -- biocompatibility -- biodegradability -- cell adhesion -- cell proliferation -- cell strain 3T3 -- cell viability -- chemical composition -- chemical structure -- controlled study -- cytotoxicity -- drug efficacy -- drug release -- electrophoretic mobility -- encapsulation -- evaporation -- fibroblast -- in vitro study -- nonhuman -- particle size -- priority journal -- stain -- study -- surface charge -- zeta potential
Аннотация: Microparticles made from degradable polyhydroxyalkanoates of different chemical compositions a homopolymer of 3-hydroxybutyric acid, copolymers of 3-hydroxybutyric and 4-hydroxybutyric acids (P3HB/4HB), 3-hydroxybutyric and 3-hydroxyvaleric acids (P3HB/3HV), 3-hydroxybutyric and 3-hydroxyhexanoic acids (P3HB/3HHx) were prepared using the solvent evaporation technique, from double emulsions. The study addresses the influence of the chemical compositions on the size and ?-potential of microparticles. P3HB microparticles loaded with doxorubicin have been prepared and investigated. Their average diameter and ?-potential have been found to be dependent upon the level of loading (1, 5, and 10 % of the polymer mass). Investigation of the in vitro drug release behavior showed that the total drug released from the microparticle into the medium increased with mass concentration of the drug. In this study mouse fibroblast NIH 3T3 cells were cultivated on PHA microparticles, and results of using fluorescent DAPI DNA stain, and MTT assay showed that microparticles prepared from PHAs of different chemical compositions did not exhibit cytotoxicity to cells cultured on them and proved to be highly biocompatible. Cell attachment and proliferation on PHA microparticles were similar to those on polystyrene. The cytostatic drug encapsulated in P3HB/3HV microparticles has been proven to be effective against HeLa tumor cells. В© 2013 Springer Science+Business Media New York.

Scopus
Держатели документа:
Institute of Biophysics, SB RAS, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Institute of Modern Biology and Biotechnology, Siberian Federal University, Svobodny Av. 79, Krasnoyarsk 660041, Russian Federation
Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
Engineering Systems Division, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
Health Sciences Technology Division, Massachusetts Institute of Technology, Cambridge, MA 02139, United States : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Murueva, A.V.; Shishatskaya, E.I.; Kuzmina, A.M.; Volova, T.G.; Sinskey, A.J.

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2.


   
    Biodegradation of polyhydroxyalkanoates (PHAs) in tropical coastal waters and identification of PHA-degrading bacteria / T. G. Volova [et al.] // Polymer Degradation and Stability. - 2010. - Vol. 95, Is. 12. - P2350-2359, DOI 10.1016/j.polymdegradstab.2010.08.023 . - ISSN 0141-3910
Кл.слова (ненормированные):
Biopolymers in marine environment -- Degradation of polymers -- PHA properties -- PHA-degrading microorganisms -- Polyhydroxyalkanoates, PHA -- 16S rRNA -- 3-hydroxybutyric acid -- Amorphous phase -- Bacillus sp -- Biodegradation rate -- Chemical compositions -- Coastal waters -- Degradation rate -- Degrading bacteria -- Degree of crystallinity -- Enterobacter -- Hydroxyvalerate -- Marine environment -- PHA properties -- PHA-degrading microorganisms -- Polydispersity indices -- Polyhydroxyalkanoates -- Polymer chains -- Preparation technique -- Sole carbon source -- South China Sea -- Viet Nam -- Acids -- Bacteriology -- Biodegradable polymers -- Biodegradation -- Biomolecules -- Biopolymers -- Microorganisms -- Organic polymers -- Polydispersity -- Polymer films -- Polymers -- RNA -- Seawater -- Degradation
Аннотация: Biodegradability patterns of two PHAs: a polymer of 3-hydroxybutyric acid (3-PHB) and a copolymer of 3-hydroxybutyric and 3-hydroxyvaleric acids (3-PHB/3-PHV) containing 11 mol% of hydroxyvalerate, were studied in the tropical marine environment, in the South China Sea (Nha Trang, Vietnam). No significant differences have been observed between degradation rates of 3-PHB and 3-PHB/3-PHV specimens; it has been found that under study conditions, biodegradation is rather influenced by the shape of the polymer item and the preparation technique than by the chemical composition of the polymer. Biodegradation rates of polymer films in seawater have been found to be higher than those of compacted pellets. As 3-PHB and 3-PHB/3-PHV are degraded and the specimens lose their mass, molecular weight of both polymers is decreased, i.e. polymer chains get destroyed. The polydispersity index of the PHAs grows significantly. However, the degree of crystallinity of both PHAs remains unchanged, i.e. the amorphous phase and the crystalline one are equally disintegrated. PHA-degrading microorganisms were isolated using the clear-zone technique, by inoculating the isolates onto mineral agar that contained PHA as sole carbon source. Based on the 16S rRNA analysis, the PHA-degrading strains were identified as Enterobacter sp. (four strains), Bacillus sp. and Gracilibacillus sp.В© 2010 Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, 79 Svobodny av., Krasnoyarsk 660041, Russian Federation
L.V. Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
A.N. Severtsov Institute of Ecology and Evolution RAS, 33 Leninskij Prospect, Moscow 119071, Russian Federation
Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 8 Lavrentiev Ave., Novosibirsk 630090, Russian Federation
Joint Russian-Vietnam Tropical Research and Test Centre, Coastal Branch, 30 Nguyen Thien Thuat, Nha Trang, Viet Nam : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Volova, T.G.; Boyandin, A.N.; Vasiliev, A.D.; Karpov, V.A.; Prudnikova, S.V.; Mishukova, O.V.; Boyarskikh, U.A.; Filipenko, M.L.; Rudnev, V.P.; Ba Xuan, B.; Vit Dung, V.; Gitelson, I.I.

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3.


   
    Distribution and resorption of polymeric microparticles in visceral organs of laboratory animals after intravenous injection / E. I. Shishatskaya [et al.] // Bulletin of Experimental Biology and Medicine. - 2009. - Vol. 148, Is. 5. - P789-793, DOI 10.1007/s10517-010-0817-3 . - ISSN 0007-4888
Кл.слова (ненормированные):
14C -- Intravenous injection -- Microparticles -- Resorbable polyhydroxybutyrate -- Visceral tissues -- carbon 14 -- microsphere -- polyhydroxyaminobutyric acid -- polymer -- unclassified drug -- animal experiment -- animal tissue -- article -- biocompatibility -- biodegradability -- body growth -- controlled drug release -- controlled study -- degradation kinetics -- drug delivery system -- drug dosage form -- experimental animal -- female -- liver parenchyma -- molecular weight -- nonhuman -- particle size -- physical development -- radioactivity -- rat -- spleen -- tissue distribution -- tissue structure -- Animals -- Animals, Laboratory -- Carbon Radioisotopes -- Female -- Injections, Intravenous -- Particle Size -- Polymers -- Rats -- Rats, Wistar -- Tissue Distribution -- Viscera -- Animalia
Аннотация: Microparticles obtained by using 14C-labeled resorbable hydroxyaminobutyric acid polymer were injected into the caudal vein of laboratory animals without negative aftereffects for their growth and development and without changes in the macro- and microstructure of organs and tissues. The distribution of microparticles in the viscera and the dynamics of accumulation of carbon-containing polymer degradation products in the viscera were studied. The main targets for the particles are liver tissues, as well as renal and splenic tissues. The polymeric matrix of the microparticles is most actively destroyed in the spleen and liver. The presence of high-molecular- weight polymeric matrix in organs indicates the integrity of microparticles and the possibility of long-term (up to 12 weeks) functioning of polymeric particles in vivo. В© 2009 Springer Science+Business Media, Inc.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division of Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Basic Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Goreva, A.V.; Voinova, O.N.; Kalacheva, G.S.; Volova, T.G.

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4.


   
    Degradation of P(3HB) and P(3HB-co-3HV) in biological media / E. I. Shishatskaya [et al.] // Journal of Biomaterials Science, Polymer Edition. - 2005. - Vol. 16, Is. 5. - P643-657, DOI 10.1163/1568562053783678 . - ISSN 0920-5063
Кл.слова (ненормированные):
Degradation rate -- Fiber properties -- Morphology -- Poly(hydroxybutyrate-co-hydroxyvalerate) (P(3HB-co-3HV)) -- Polyhydroxyalkanoates(PHAs) -- Polyhydroxybutyrate (P(3HB)) -- Copolymers -- Degradation -- Differential scanning calorimetry -- Enzymes -- Morphology -- Scanning electron microscopy -- Tensile strength -- Tissue -- Transmission electron microscopy -- Degradation rate -- Fiber properties -- Polyhydroxyalkanoates (PHAs) -- Polyhydroxybutyrate (P(3HB)) -- Biopolymers -- buffer -- copolymer -- poly(3 hydroxybutyric acid) -- polyhydroxybutyrate hydroxyvalerate copolymer -- unclassified drug -- animal experiment -- animal model -- animal tissue -- article -- biodegradation -- controlled study -- crystal structure -- fiber -- giant cell -- in vitro study -- in vivo study -- macrophage -- morphology -- nonhuman -- pH -- priority journal -- rat -- structure analysis -- tensile strength -- tissue water -- weight reduction -- Animals -- Biodegradation, Environmental -- Buffers -- Humans -- Hydrogen-Ion Concentration -- Hydroxybutyrates -- Macrophages -- Microscopy, Electron, Scanning -- Microscopy, Electron, Transmission -- Muscle, Skeletal -- Polyesters -- Rats -- Rats, Wistar
Аннотация: The biodegradability of oriented fibers made of polyhydroxybutyrate (P(3HB)) and its co-polymer with ?-hydroxyvalerate (P(3HB-co-3HV)) was investigated in buffer solutions and in biological media in vitro and in vivo. The fibers of both polymer types demonstrated resistance to hydrolytic degradation in buffer solutions at 38В°C and pH from 4.5 to 7.0 (for up to 180 days). It has been found that the biodegradation of the fibers in vitro in blood and serum and in vivo is accompanied by weight losses and minor changes in the microstructure with no significant losses in the tensile strength over a long time (up to 180 days). The biodegradation rate of the less crystalline co-polymer P(3HB-co-3HV) fibers was 1.4-2.0-times higher than that of the homopolymer P(3HB). It has also been shown that the degradation of the fibers in vivo is influenced both by tissue fluid enzymes and cells (macrophages and foreign-body giant cells). The fibers were eroded on the surface only with no gross defects and no dramatic effects on their mechanical performance. В© VSP 2005.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 600326, Russian Federation
Department of Cardiac Surgery, University of Glasgow, Royal Infirmary, 10 Alexandra Parade, Glasgow G3, United Kingdom : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Volova, T.G.; Gordeev, S.A.; Puzyr, A.P.

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5.


   
    Tissue response to biodegradable suture threads made of polyhydroxyalkanoates / E. I. Shishatskaya [et al.] // Biomedical Engineering. - 2002. - Vol. 36, Is. 4. - P210-217, DOI 10.1023/A:1021184119268 . - ISSN 0006-3398
Кл.слова (ненормированные):
acid phosphatase -- alkaline phosphatase -- polyhydroxyalkanoic acid -- animal experiment -- animal tissue -- article -- biocompatibility -- biodegradability -- controlled study -- elasticity -- enzyme activity -- enzyme mechanism -- female -- histochemistry -- incision -- nonhuman -- physical chemistry -- postoperative period -- rat -- rigidity -- suture -- thickness -- tissue reaction -- wound healing -- Animalia

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Sciences, Krasnoyarsk Terr. Bur. Pathol. Anat., Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Volova, T.G.; Efremov, S.N.; Puzyr', A.P.; Mogil'Naya, O.A.

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6.


   
    Study of biological properties of polyhydroxyalkanoates in a long-term experiment in vivo / E. I. Shishatskaya, T. G. Volova, T. G. Popova // Biomedical Engineering. - 2002. - Vol. 36, Is. 4. - P218-222, DOI 10.1023/A:1021136203338 . - ISSN 0006-3398
Кл.слова (ненормированные):
hemoglobin -- polyhydroxyalkanoic acid -- animal experiment -- animal tissue -- article -- biocompatibility -- biodegradability -- biosynthesis -- blood cell count -- blood sampling -- comparative study -- controlled study -- DNA synthesis -- elasticity -- enzyme activity -- enzyme mechanism -- erythrocyte sedimentation rate -- female -- in vivo study -- liver function -- nonhuman -- organ weight -- rat -- suture -- Animalia

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Sciences, Institute of Computer Simulation, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Volova, T.G.; Popova, T.G.

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7.


   
    Research of biodegradability of microbial polyhydroxyalkanoates [Текст] / T. G. Volova [и др.] // Dokl. Akad. Nauk. - 1996. - Vol. 350, Is. 5. - С. 707-711. - Cited References: 10 . - 5. - ISSN 0869-5652
РУБ Multidisciplinary Sciences
Рубрики:
HYDROLYTIC DEGRADATION
: 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Volova, T.G.; Belyaeva, O.G.; Plotnikov, V.F.; Puzyr, A.P.

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8.


   
    Microbial Degradation of Polyhydroxyalkanoates with Different Chemical Compositions and Their Biodegradability / T. G. Volova [et al.] // Microb. Ecol. - 2017. - Vol. 73, Is. 2. - P353-367, DOI 10.1007/s00248-016-0852-3. - Cited References:65. - This study was supported by the Russian Science Foundation (Grant No. 14-26-00039). . - ISSN 0095-3628. - ISSN 1432-184X
РУБ Ecology + Marine & Freshwater Biology + Microbiology
Рубрики:
TROPICAL COASTAL WATERS
   PHA-DEGRADING BACTERIA

   ALCALIGENES-EUTROPHUS

Кл.слова (ненормированные):
Degradable polyhydroxyalkanoates -- PHA -- Soil -- PHA-degrading -- microorganisms
Аннотация: The study addresses degradation of polyhydroxyalkanoates (PHA) with different chemical compositions-the polymer of 3-hydroxybutyric acid [P(3HB)] and copolymers of P(3HB) with 3-hydroxyvalerate [P(3HB/3HV)], 4-hydroxybutyrate [P(3HB/4HB)], and 3-hydroxyhexanoate [P(3HB/3HHx)] (10-12 mol%)-in the agro-transformed field soil of the temperate zone. Based on their degradation rates at 21 and 28 A degrees C, polymers can be ranked as follows: P(3HB/4HB) > P(3HB/3HHx) > P(3HB/3HV) > P(3HB). The microbial community on the surface of the polymers differs from the microbial community of the soil with PHA specimens in the composition and percentages of species. Thirty-five isolates of bacteria of 16 genera were identified as PHA degraders by the clear zone technique, and each of the PHA had both specific and common degraders. P(3HB) was degraded by bacteria of the genera Mitsuaria, Chitinophaga, and Acidovorax, which were not among the degraders of the three other PHA types. Roseateles depolymerans, Streptomyces gardneri, and Cupriavidus sp. were specific degraders of P(3HB/4HB). Roseomonas massiliae and Delftia acidovorans degraded P(3HB/3HV), and Pseudoxanthomonas sp., Pseudomonas fluorescens, Ensifer adhaerens, and Bacillus pumilus were specific P(3HB/3HHx) degraders. All four PHA types were degraded by Streptomyces.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Akademgorodok 50-50, Krasnoyarsk, Russia.

Доп.точки доступа:
Volova, Tatiana G.; Prudnikova, Svetlana V.; Vinogradova, Olga N.; Syrvacheva, Darya A.; Shishatskaya, Ekaterina I.; Russian Science Foundation [14-26-00039]

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9.


   
    Metabolic activity of cryogenic soils in the subarctic zone of Siberia towards “green” bioplastics / S. V. Prudnikova, S. Y. Evgrafova, T. G. Volova // Chemosphere. - 2021. - Vol. 263. - Ст. 128180, DOI 10.1016/j.chemosphere.2020.128180 . - ISSN 0045-6535
Кл.слова (ненормированные):
metabolic activity -- P(3HB) bioplastic -- P(3HB) properties -- P(3HB)-degrading strains -- Siberian cryogenic soils -- structure of microbial community -- Aspergillus -- Bacteriology -- Biodegradable polymers -- Biodegradation -- Cryogenics -- Crystallinity -- Metabolism -- Polymer films -- Reinforced plastics -- RNA -- Soils -- Aspergillus fumigatus -- Degree of crystallinity -- Microbial communities -- Nucleotide sequences -- Poly-3-hydroxybutyrate -- Polymer biodegradation -- Soil microbial community -- Surface microstructures -- Bacteria -- bacterial RNA -- fungal RNA -- mineral -- plastic -- poly(3 hydroxybutyric acid) -- polymer -- ribosome RNA -- RNA 16S -- RNA 18S -- RNA 28S -- RNA 5.8S -- abundance -- bacterium -- biodegradation -- biomass -- community structure -- concentration (composition) -- crystallinity -- fungus -- microbial community -- microstructure -- plastic -- polymer -- soil temperature -- subarctic region -- Actinobacteria -- Agrobacterium tumefaciens -- Antarctica -- Arctic -- Article -- Aspergillus fumigatus -- Aspergillus niger -- Bacilli -- Bacillus cereus -- Bacillus pumilus -- bacterial gene -- bacterium isolate -- biodegradability -- biodegradation -- biomass -- Chryseobacterium ioostei -- colony forming unit -- community structure -- concentration (parameter) -- cryogenic soil -- crystallization -- Cupriavidus necator -- ecosystem -- Escherichia coli -- Flavobacteria -- Flavobacterium -- fungal community -- fungal gene -- Fusarium fujikuroi -- Gammaproteobacteria -- green chemistry -- Lactobacterium helveticus -- metabolism -- microbial biomass -- microbial community -- molecular weight -- Mortierella alpina -- Mycobacterium -- Mycobacterium pseudoshotsii -- Nocardioides -- nucleotide sequence -- nucleotide sequence -- Paenibacillus -- Paraburkholderia -- Penicillium -- Penicillium arenicola -- Penicillium glabrum -- Penicillium lanosum -- Penicillium restrictum -- Penicillium spinulosum -- Penicillium thomii -- phylogeny -- Pseudomonas -- Rhizopus oryzae -- Rhodococcus -- RNA sequence -- Russian Federation -- soil -- soil microflora -- soil temperature -- species composition -- Stenotrophomonas -- Streptomyces -- Streptomyces prunicolor -- surface property -- temperature dependence -- thawing -- Variovorax paradoxus -- zpseudomonas lutea -- Siberia -- Aspergillus fumigatus -- Bacillus pumilus -- Bacteria (microorganisms) -- Fungi -- Penicillium thomii -- Pseudomonas sp. -- Rhodococcus sp. -- Stenotrophomonas rhizophila -- Streptomyces prunicolor -- Variovorax paradoxus
Аннотация: The present study investigates, for the first time, the structure of the microbial community of cryogenic soils in the subarctic region of Siberia and the ability of the soil microbial community to metabolize degradable microbial bioplastic – poly-3-hydroxybutyrate [P(3HB)]. When the soil thawed, with the soil temperature between 5-7 and 9–11 °C, the total biomass of microorganisms at a 10-20-cm depth was 226–234 mg g?1 soil and CO2 production was 20–46 mg g?1 day?1. The total abundance of microscopic fungi varied between (7.4 ± 2.3) ? 103 and (18.3 ± 2.2) ? 103 CFU/g soil depending on temperature; the abundance of bacteria was several orders of magnitude greater: (1.6 ± 0.1) ? 106 CFU g?1 soil. The microbial community in the biofilm formed on the surface of P(3HB) films differed from the background soil in concentrations and composition of microorganisms. The activity of microorganisms caused changes in the surface microstructure of polymer films, a decrease in molecular weight, and an increase in the degree of crystallinity of P(3HB), indicating polymer biodegradation due to metabolic activity of microorganisms. The clear-zone technique – plating of isolates on the mineral agar with polymer as sole carbon source – was used to identify P(3HB)-degrading microorganisms inhabiting cryogenic soil in Evenkia. Analysis of nucleotide sequences of rRNA genes was performed to identify the following P(3HB)-degrading species: Bacillus pumilus, Paraburkholderia sp., Pseudomonas sp., Rhodococcus sp., Stenotrophomonas rhizophila, Streptomyces prunicolor, and Variovorax paradoxus bacteria and the Penicillium thomii, P. arenicola, P. lanosum, Aspergillus fumigatus, and A. niger fungi. © 2020 Elsevier Ltd

Scopus
Держатели документа:
Siberian Federal University, 79 Svobodny Pr, Krasnoyarsk, 660041, Russian Federation
V.N. Sukachev Institute of Forest, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/28 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Melnikov Permafrost Institute, SB RAS, 36 Merzlotnaya St., Yakutsk, 677010, Russian Federation

Доп.точки доступа:
Prudnikova, S. V.; Evgrafova, S. Y.; Volova, T. G.

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