Molecular Dimensions
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Molecular Dimensions es un proveedor líder mundial de modernas pantallas, reactivos, otros consumibles e instrumentación para la determinación de la estructura de proteínas mediante cristalografía de rayos X.
Molecular Dimensions ofrece la gama más innovadora de productos procedentes de los últimos avances de la investigación en biología estructural. En la actualidad, la empresa tiene más de 20 proyectos en distintas fases de desarrollo, desde nuevas pantallas y reactivos para el crecimiento de cristales, pasando por nuevos materiales de plástico de laboratorio, hasta una gama de instrumentación. Página web: www.moleculardimensions.com
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![LB broth - Non-selective liquid media for microbiology](https://www.clinisciences.com/es/upload/thumbs/microbiology-tfjctv-1a6ea1.jpeg)
LB broth - Non-selective liquid media for microbiology
The LB culture medium (for lysogeny broth) is a non-selective nutrient culture medium, initially used for bacterial culture. LB media have become an industry standard for the cultivation of Escherichia coli. They have been widely used in molecular microbiology for the preparation of DNA plasmids and recombinant proteins. To this day, it remains one of the most widely used media for the life support and culture of recombinant Escherichia coli lines. There are various compositions of LB. Although they are different, they generally share some components that they have in common to promote the growth of species in culture. LB medium promotes luxurious growth of E. coli cells, as tryptone and yeast extract provide essential growth factors that E. coli cells would otherwise have to synthesize. The medium also contains essential electrolytes for transport and osmotic balance, thanks to the NaCl component.
The LB culture medium can be supplemented with antibiotics to make it selective. This allows the selection and selective culture of recombinant E. coli resistant to this antibiotic.
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