Academic literature on the topic 'Diamina geminal'

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Journal articles on the topic "Diamina geminal"

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Neubauer, Damian, Maciej Jaśkiewicz, Marta Bauer, et al. "Biological and Physico-Chemical Characteristics of Arginine-Rich Peptide Gemini Surfactants with Lysine and Cystine Spacers." International Journal of Molecular Sciences 22, no. 7 (2021): 3299. http://dx.doi.org/10.3390/ijms22073299.

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Ultrashort cationic lipopeptides (USCLs) and gemini cationic surfactants are classes of potent antimicrobials. Our recent study has shown that the branching and shortening of the fatty acids chains with the simultaneous addition of a hydrophobic N-terminal amino acid in USCLs result in compounds with enhanced selectivity. Here, this approach was introduced into arginine-rich gemini cationic surfactants. l-cystine diamide and l-lysine amide linkers were used as spacers. Antimicrobial activity against planktonic and biofilm cultures of ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsie
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Biallas, Phillip, Janina Heider, and Stefan F. Kirsch. "Functional polyamides withgem-diazido units: synthesis and diversification." Polymer Chemistry 10, no. 1 (2019): 60–64. http://dx.doi.org/10.1039/c8py01087k.

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Chen, Zhidi, Jeffrey Penfold, Peixun Li, James Doutch, Yaxun Fan, and Yilin Wang. "Effects of length and hydrophilicity/hydrophobicity of diamines on self-assembly of diamine/SDS gemini-like surfactants." Soft Matter 13, no. 47 (2017): 8980–89. http://dx.doi.org/10.1039/c7sm02058a.

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Fan, Zhen Zhong, Xin Liu, Fei Wang, and Yu Sheng Zhang. "Synthesis and Evaluation of Anionic Gemini Surfactant." Applied Mechanics and Materials 217-219 (November 2012): 1363–67. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.1363.

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Abstract. Take the lauric acid, the ethylene diamine, the chloroacetic acid, the soda ash as raw material synthesized a new type of Anionic Gemini surfactants-N, N'-double lauroyl ethylene diamine two sodium acetate, The properties of the product were characterized, and the physical and chemical properties were determined. The experimental results can be seen that the anionic Gemini surfactants can greatly reduce the oil/water interface tension, and it has good viscosity properties, Thus deduced that the Gemini surfactants is better than the ordinary surfactant better table (world) surface act
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Robitaille, Pierre Marie, R. David Scott, Junying Wang, and David E. Metzler. "Schiff bases and geminal diamines derived from pyridoxal 5'-phosphate and diamines." Journal of the American Chemical Society 111, no. 8 (1989): 3034–40. http://dx.doi.org/10.1021/ja00190a043.

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Zheng, Sijia, Yang Chen, and Michael A. Brook. "Thermoplastic silicone elastomers based on Gemini ionic crosslinks." Polymer Chemistry 11, no. 46 (2020): 7382–92. http://dx.doi.org/10.1039/d0py01044h.

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Grant, P. L., J. M. Basford, and R. A. John. "An investigation of transient intermediates in the reaction of 2-methylglutamate with glutamate decarboxylase from Escherichia coli." Biochemical Journal 241, no. 3 (1987): 699–704. http://dx.doi.org/10.1042/bj2410699.

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Several intermediates in the reaction of 2-methylglutamate with glutamate decarboxylase from Escherichia coli were detected by stopped-flow spectrophotometry and by rapid-scanning spectrophotometry after conventional mixing. Structures were assigned to intermediates on the basis of kinetic and spectral evidence. In the early stages of the reaction an intermediate with the properties expected of a geminal diamine accumulated significantly. Changes consistent with the conversion of this species into the external aldimine were also observed. The course of product formation was determined and link
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Shaibakova, M. G., I. G. Titova, G. A. Makhmudiyarov, A. G. Ibragimov, and U. M. Dzhemilev. "Synthesis of 2,3-acetylenic amines by aminomethylation of acetylenes with geminal diamines." Russian Journal of Organic Chemistry 46, no. 1 (2010): 43–48. http://dx.doi.org/10.1134/s1070428010010021.

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Salvà, Antoni, Josefa Donoso, Juan Frau, and Francisco Muñoz. "Density Functional Theory Studies on Transimination of Vitamin B6 Analogues through Geminal Diamine Formation." Journal of Physical Chemistry A 108, no. 52 (2004): 11709–14. http://dx.doi.org/10.1021/jp047258m.

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Asaro, Marianna F., Ichiro Nakayama, and Robert B. Wilson. "Formation of sterically hindered primary vicinal diamines from vicinal and geminal dinitro compounds." Journal of Organic Chemistry 57, no. 2 (1992): 778–82. http://dx.doi.org/10.1021/jo00028a077.

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Dissertations / Theses on the topic "Diamina geminal"

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Salvà, Salvà Antoni. "Estudio teórico de la reaccionabilidad de compuestos modelo de la vitamina B6 con aminas." Doctoral thesis, Universitat de les Illes Balears, 2006. http://hdl.handle.net/10803/9450.

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S'han realitzat càlculs PM3 i DFT (B3LYP/6-31+G*) per tal de descriure els perfils de reacció de la formació de la base de Schiff entre un compost anàlog del 5'-fosfat de piridoxal i una amina, i de la transiminació. Es descriu també un estudi de la topologia de la funció densitat de càrrega de les estructures DFT segons la teoria de Bader AIM.<br/> Els detalls dels mecanismes destaquen el paper fonamental de la molècula d'aigua i dels grups polars per a la formació d'estructures de transició concertades associades a transferències d'hidrogen i per proporcionar l'estabilització als intermedis
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