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Artículo
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Synthesis, conformational analysis and: In vivo assays of an anti-cancer vaccine that features an unnatural antigen based on an sp2-iminosugar fragment
(Royal Society of Chemistry, 2020)
The Tn antigen (GalNAc-α-1-O-Thr/Ser) is a well-known tumor-associated carbohydrate determinant. The use of glycopeptides that incorporate this structure has become a significant and promising niche of research owing to ...
Artículo
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Stereoselective Synthesis of Nojirimycin α-C-Glycosides from a Bicyclic Acyliminium Intermediate: A Convenient Entry to N,C-Biantennary Glycomimetics
(American Chemical Society, 2022)
A simple and efficient method for the stereoselective synthesis of nojirimycin α-C-glycoside derivatives has been developed using a bicyclic carbamate-type sp2-iminosugar, whose preparation on a gram scale has been optimized, ...
Artículo
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Strongly Emissive and Photostable Four-Coordinate Organoboron N,C Chelates and Their Use in Fluorescence Microscopy
(Wiley-Blackwell, 2015)
Six strongly fluorescent four-coordinate organoboron N,C chelates containing an aryl isoquinoline skeleton were prepared. Remarkably, the fluorescence quantum yields reach values of up to 0.74 in oxygen-free toluene. The ...
Artículo
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Exopolysaccharide Production by Sinorhizobium fredii HH103 Is Repressed by Genistein in a NodD1-Dependent Manner
(Public Library of Science, 2016)
In the rhizobia-legume symbiotic interaction, bacterial surface polysaccharides, such as exopolysaccharide (EPS), lipopolysaccharide (LPS), K-antigen polysaccharide (KPS) or cyclic glucans (CG), appear to play crucial roles ...
Artículo
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Osmotic stress activates nif and fix genes and induces the Rhizobium tropici CIAT 899 Nod factor production via NodD2 by up-regulation of the nodA2 operon and the nodA3 gene
(Public Library of Science, 2019)
The symbiosis between rhizobia and legumes is characterized by a complex molecular dialogue in which the bacterial NodD protein plays a major role due to its capacity to activate the expression of the nodulation genes in ...
Artículo
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Analysis of the lipid moiety of lipopolysaccharide from Rhizobium tropici CIAT899: identification of 29-hydroxytriacontanoic acid
(American Society for Microbiology, 1994)
The lipid moieties of two lipid A's isolated from the phenolic and aqueous fractions of lipopolysaccharide from Rhizobium tropici CIAT899 have been studied. Several 3-hydroxy fatty acids and two long-chain hydroxy fatty ...
Tesis Doctoral
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Reacciones de adición de Michael de la dimetilhidrazona del formaldehído. Un nuevo equivalente sintético del anión formilo
(1995)
Se han investigado las posibilidades sintéticas de la N,N-Dimetilhidrazona del formaldehido (DMHF) como equivalente del anión formilo en reacciones de Michael. En el curso de nuestra investigación hemos encontrado que la ...
Artículo
Tesis Doctoral
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Comparación de métodos de determinación de la concentración crítica para la formación de micelas en presencia de sales inorgánica: Medidas de tensión superficial, conductividad electrolítica específica y absorbancia de la rodamina 6-G
(1982-06-17)
Uno de los fenómenos más característicos y peculiares de los tensioactivos es el de su micelización en disolución acuosa. Es este un proceso por el que sus moléculas se asocian en agregados, denominados micelas, adoptando ...
Artículo
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Structure of the unusual Sinorhizobium fredii HH103 lipopolysaccharide and its role in symbiosis
(Elsevier, 2020)
Rhizobia are soil bacteria that form important symbiotic associations with legumes, and rhizobial surface polysaccharides, such as K-antigen polysaccharide (KPS) and lipopolysaccharide (LPS), might be important for symbiosis. ...