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    Bio-hybridization of nanobactericides with cellulose films for effective treatment against members of ESKAPE multi-drug-resistant pathogens / S. Baker [et al.] // Appl. Nanosci. - 2018. - Vol. 8, Is. 5. - P. 1101-1110, DOI 10.1007/s13204-018-0717-9. - Cited References: 51. - Authors are thankful for Ministry of Education and Science of the Russian Federation for providing funding under the scheme of 5-100: Russian Academic Excellence Project. Authors are grateful for facilities provided by Siberian Federal University to carry out the present study. . - ISSN 2190-5509. - ISSN 2190-5517
   Перевод заглавия: Биогибридизация нано-бактерицидов с целлюлозными пленками для эффективного воздействия на представителей группы патогенов ESKAPE, резистентных к различным препаратам

РУБ Nanoscience & Nanotechnology
Рубрики:
SILVER NANOPARTICLES
BACTERIAL CELLULOSE
ANTIBIOTIC-RESISTANCE
Кл.слова (ненормированные):
ESKAPE -- Bio-hybridization -- Silver nanobactericides -- Phytogenic -- Bactericidal activity
Аннотация: The rapid expansion of drug-resistant pathogens has created huge global impact and development of novel antimicrobial leads is one of the top priority studies in the current scenario. The present study aims to develop bio-hybridized nanocellulose films which comprise of phytogenic silver nanobactericides. The nanobactericides were synthesized by treating 1 mM silver nitrate with aqueous extract of Chamerion angustifolium which reduced the metal salt to produce polydispersed nanobactericides which were tested against the members of ESKAPE drug-resistant communities. The synthesized silver nanobactericides were subjected to characterization with UV–visible spectra which displayed maximum absorbance at 408 nm. The bio-molecular interaction of phyto-constituents to mediate synthesis and stabilization of nanobactericides was studied with Fourier-transform infrared spectroscopy (FTIR) which depicted functional groups associated with nanobactericides. The crystalline nature was studied with X-ray diffraction (XRD) which showed Bragg’s intensities at 2θ angle which denoted (111), (200), (220), and (311) planes. The morphological characteristics of silver nanobactericides were defined with transmission electron Microscopy (TEM) image which displayed polydispersity of silver nanobactericides with size ranging from 2 to 40 nm. The synthesized nanobactericides showed a significant activity against MRSA strain with 21 mm zone of inhibition. The minimal inhibitory concentration of silver nanobactericides to inhibit the growth of test pathogens was also determined which ranged between 0.625 and 1.25 μg/ml. The silver nanobactericides were bio-hybridized onto nanocellulose films produced by Komagataeibacter xylinus B-12068 culture strain. The films were dried to determine the mechanical properties which showed increased in Young’s modulus and tensile strength in comparison with control bacterial cellulose films. Overall, the results obtained in the present investigation are promising enough to report bactericidal activity of bio-hybridized nanobactericidal films against ESKAPE. These communities are reported to cause severe threats to all forms of lives irrespective to their habitats which can lead to huge economical crisis.

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Держатели документа:
Siberian Fed Univ, Lab Biotechnol New Mat, Svobodnyy Pr 79, Krasnoyarsk 660041, Russia.
SB RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Sch Fundamental Biol & Biotechnol, Krasnoyarsk, Russia.
Krasnoyasrk State Med Univ, Dept Microbiol, Krasnoyarsk Partizana Zheleznyaka St 1, Krasnoyarsk 660022, Russia.
SB RAS, Fed Res Ctr KSC, Kirensky Inst Phys, Akademgorodok 50,Bld 38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Sch Petr & Nat Gas Engn, Krasnoyarsk, Russia.

Доп.точки доступа:
Baker, Syed; Volova, Tatiana; Prudnikova, Svetlana V.; Shumilova, Anna A.; Perianova, Olga, V; Zharkov, S. M.; Жарков, Сергей Михайлович; Kuzmin, A. R.; Kondratenka, Olga; Kiryukhin, Bogdan; Shidlovskiy, Ivan P.; Potkina, Zoya K.; Khohlova, Olga Y.; Lobova, Tatiana I.; Ministry of Education and Science of the Russian Federation under the scheme of 5-100: Russian Academic Excellence Project
}
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    Phytogenic Synthesis of Ag Bionano-Antibiotics Against ESKAPE Drug Resistant Communities in Krasnoyarsk, Siberia / B. Syed [et al.] // J. Cluster Sci. - 2019. - Vol. 30, Is. 3. - P. 589-597, DOI 10.1007/s10876-019-01518-7. - Cited References: 44. - uthors are thankful for facilities provided by Siberian Federal University to carry out the present study. Authors are grateful to Krasnoyarsk Medical University for providing opportunity to carry out the present study. . - ISSN 1040-7278
   Перевод заглавия: Фитогенный синтез биологических нано-антибиотиков на основе серебра против фармакорезистентных болезнетворных микроорганизмов, распространенных в Красноярске, Россия
Кл.слова (ненормированные):
Heracleum dissectum -- Silver nano-antibiotics -- ESKAPE -- Antimicrobial-resistant -- Krasnoyarsk -- Siberia
Аннотация: The present study reports synthesis of silver nano-antibiotics from aqueous extract of H. dissectum. The nano-antibiotics were characterized using UV–visible spectra which displayed maximum absorbance at 430 nm. The role of phytocomponents as reducing agent and stabilization of silver nano-antibiotics was depicted with Fourier-transform infrared spectroscopy which revealed presence of hydroxyl and carboxyl groups associated with silver nano-antibiotics. The crystalline nature was studied with X-ray diffraction which showed Bragg’s intensities at 2θ angle which denoted (101), (111), (200), (220), (311) planes. The morphological characteristics were studied using Transmission Electron Microscopy to reveal the size ranging from 5 to 50 nm. The bactericidal activity of nano-antibiotics was studied via well diffusion and minimal inhibitory concentration assay against members of drug-resistant communities bearing resistant to more than ten standard antibiotics. Nano-antibiotics displayed highest activity against Ps. aeruginosa strain 55 and Methicillin-resistant Staphylococcus aureus with 16 mm zone of inhibition followed by Kl. pneumoniae strain 104 and E. coli strain 55. Moderate activity was observed against Ac. baumannii strains with 12 mm zone of inhibition. The obtained results envision the role of plant mediated nano-antibiotics as one of the best suited alternatives towards combating drug resistant pathogens.

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Держатели документа:
Department of Microbiology, Krasnoyasrk State Medical University named after Prof. VF. Voino-Yasenetskiy, Partizana-Zheleznyaka Street, 1, Krasnoyarsk, 660022, Russian Federation
Siberian Federal University, Svobodnyy pr., 79, Krasnoyarsk, 660041, Russian Federation
School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russian Federation
Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Akademgorodok 50, Bld. 38, Krasnoyarsk, 660036, Russian Federation
School of Petroleum and Natural Gas Engineering, Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Environmental Sciences, Jozef Stefan Institute, Jamova 39, Ljubljana, 1000, Slovenia
Department of Biotechnology, M. M. Engineering College, Maharishi Markandeshwar University (MMU), Mullana, Ambala, India

Доп.точки доступа:
Syed, B.; Prudnikova, S. V.; Perianova, O. V.; Zharkov, S. M.; Жарков, Сергей Михайлович; Kuzmin, A.; Chouhan, R. S.; Potkina, N. K.; Khohlova, O. Y.; Lobova, T. I.; Singh, M.
}
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