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Bibliografías temáticas / Modified activitiy

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Artículos de revistas

Literatura académica sobre el tema "Modified activitiy"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 6 de febrero de 2022

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Artículos de revistas sobre el tema "Modified activitiy"

1

Li, He Ping, Guan Wei Yang, Yun Yan Huang, and Jin Wei Yuan. "Preparation and Characterization of Double Activity Sulfate-Gallate Bagasse Xylan." Advanced Materials Research 842 (November 2013): 216–19. http://dx.doi.org/10.4028/www.scientific.net/amr.842.216.

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The objective of this research was to introduce another kind of anti-biological activitiy group to xylan sulfate for improve performance in anti-biological activitiy. A novel double activity sulfate-gallate bagasse xylan was prepared by using bagasse xylan as raw material, sodium nitrilotriacetic sulfonate and gallic acid as esterifying agents. The structure of product was characterized by FT-IR and SEM. The results show that the bagasse xylan was modified successfully, and the final product is a novel double activity sulfate-gallate bagasse xylan.

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2

Abiha, Gul Bayram, Leyla Bahar, and Semra Utku. "In Vitro Antimicrobial Activities of 6-Substituted-3(2H)- pyridazinone-2-acetyl-2- (substituted/nonsubstitutedbenzal/ acetophenone) Hydrazone Derivatives." Revista Romana de Medicina de Laborator 26, no. 2 (2018): 231–41. http://dx.doi.org/10.2478/rrlm-2018-0017.

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Abstract Aim: In vitro antibacterial activity of 6-substituted-3(2H)-pyridazinone-2-acetyl-2-(substituted/nonsubstitutedbenzal/ acetophenone) hydrazone derivatives were tested in common species causing hospital-acquired infections. Material and Method: Antimicrobial activities of the compounds were performed by determining minimum inhibitory concentration (MIC) value against four Gram-positive, five Gram-negative and four Candida species fungi. Modified serial microdilution method was carried out. Reference strains of American Type Culture Collection (ATCC) were used. Results: In general, elev

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3

Hernández Enríquez, J. M., R. García Alamilla, L. A. García Serrano, and Y. A. Cueto Hernández. "Síntesis, caracterización y actividad fotocatalítica de óxido de titanio modificado con nitrógeno." Boletín de la Sociedad Española de Cerámica y Vidrio 50, no. 5 (2011): 245–52. http://dx.doi.org/10.3989/cyv.322011.

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4

Rabin, Nurun Nahar, Jannatul Morshed, Hashi Akhter та ін. "Surface Modification of the ZnO Nanoparticles with γ-Aminopropyltriethoxysilane and Study of Their Photocatalytic Activity, Optical Properties and Antibacterial Activities". International Journal of Chemical Reactor Engineering 14, № 3 (2016): 785–94. http://dx.doi.org/10.1515/ijcre-2015-0141.

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Abstract Surface modification of Zinc oxide nanoparticles (ZnO) with γ-aminopropyltriethoxy silane (APTES) was investigated. Successful surface modification of the nanoparticles was confirmed experimentally by X-ray Photoelectron Spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR). The effect of the surface modifier concentration on the grafting density and surface area was studied by CHN elemental analysis and Brunauer–Emmett–Teller (BET) analysis. The photocatalytic activity and UV shielding ability of the surface-modified particles prepared in water-ethanol solvent in the

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5

Zuo, Jin Long, Han Qiang Tang, Qian Nie, Biao Li, and Zhi Wei Liu. "Preparation and Characterization of Stearic Acid-Modified Iron-Doped TiO₂ Nanoparticles." Advanced Materials Research 777 (September 2013): 47–51. http://dx.doi.org/10.4028/www.scientific.net/amr.777.47.

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In this study, TiO2 nanoparticles composites were prepared by the micro emulsion method, above of all samples were characterized by FT-IR, XRD. Photo activities of Fe-TiO2, TiO2 were evaluated by degradation of oil-bearing wastewater. The results show that the photo activity of Fe-TiO2 was more than that of TiO2; the best presence of iron ion dopants in TiO2 was 0.04%. Used stearic acids as the surface modification agent, Fe-TiO2 were modified by situ surface modification. The results showed that the optimum conditions of stearic acid-Fe - TiO2 :Temperature (20°C), the modified time (45 min),

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6

He, Yu Tang, Tian Gang Yin, Yu Mei Xie, Yong Xia Xu, He Liu, and Tao Ma. "Modification of Zein and its Antioxidant Property In Vitro." Advanced Materials Research 1004-1005 (August 2014): 864–67. http://dx.doi.org/10.4028/www.scientific.net/amr.1004-1005.864.

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Modified zein could improve functional properties of zein broadening its application. The L9(34) orthogonal experimental design was applied to optimize modification technology of zein. The results showed that the optimum parameters of zein modification were using gallic acid as modifier, ethanol 80% and modification time 2.0h. Under these conditions, the fracture elongation of modified zein was reached to 79.5%. The results showed obvious effects. The antioxidant activities of zein were determined by •OH and DPPH radicals scavenging assays. When modified zein concentration was 2.0 g/mL the sca

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7

Rubio, Teresa, Santiago Vernia та Pascual Sanz. "Sumoylation of AMPKβ2 subunit enhances AMP-activated protein kinase activity". Molecular Biology of the Cell 24, № 11 (2013): 1801–11. http://dx.doi.org/10.1091/mbc.e12-11-0806.

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AMP-activated protein kinase (AMPK) is a sensor of cellular energy status. It is a heterotrimer composed of a catalytic α and two regulatory subunits (β and γ). AMPK activity is regulated allosterically by AMP and by the phosphorylation of residue Thr-172 within the catalytic domain of the AMPKα subunit by upstream kinases. We present evidence that the AMPKβ2 subunit may be posttranslationally modified by sumoylation. This process is carried out by the E3-small ubiquitin-like modifier (SUMO) ligase protein inhibitor of activated STAT PIASy, which modifies the AMPKβ2 subunit by the attachment o

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8

Wang, Zhiqing, Yana Zhang, Jian Zhang, and Seah H. Lim. "Expression of the CT Antigen, SPAN-Xb, Is Regulated through Promoter Methylation." Blood 104, no. 11 (2004): 4285. http://dx.doi.org/10.1182/blood.v104.11.4285.4285.

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Abstract SPAN-Xb is a spermatid protein that we have recently identified as a novel Cancer-Testis (CT) antigen in hematologic malignancies. We have also shown that SPAN-Xb expression in tumor cell lines could be upregulated by 5-azacytidine, GM-CSF and IL-7. The ability of 5-azacytidine to increase SPAN-Xb expression suggests that SPAN-Xb gene expression, like the other CT antigens, may be regulated through promoter methylation. On the other hand, the ability of GM-CSF and IL-7 to increase SPAN-Xb expression remained to be determined. In this study, we set out to determine whether or not promo

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9

Dolgikh, V. T., L. G. Pyanova, E. V. Naumkina, A. V. Lavrenov, E. V. Matushchenko, and N. V. Kornienko. "Antibacterial Activity of Modified Carbon Sorbents, Prospective for Application." Antibiotics and Chemotherapy 65, no. 7-8 (2020): 3–7. http://dx.doi.org/10.37489/0235-2990-2020-65-7-8-3-7.

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The aim of the work is to study the antibacterial and antimycotic properties of carbon sorbents modified with biologically active substances in relation to pathogens of purulent-inflammatory diseases. Material and methods. The activity of modifier solutions and modified samples of carbon sorbents was studied in relation to test strains of opportunistic microorganisms in comparison with the initial sample of carbon sorbent. A suspension with a known content of microbial cells was prepared from test strains of microorganisms; it was incubated in wells with test samples for 48 hours. The survival

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10

Xia, Yiqing, Yifeng Lin, Qichao Ran, Rongqi Zhu, and Yi Gu. "Modification of benzoxazine with aryl-ether-ether-ketone diphenol: preparation and characterization." RSC Advances 7, no. 3 (2017): 1617–25. http://dx.doi.org/10.1039/c6ra27493e.

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A modified benzoxazine resin system with “high strength, high modulus and high toughness” was prepared by introducing an efficient modifier (m-DHPBP) with high catalytic activity and an aryl-ether-ether-ketone (PEEK) structure.

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