Abstract: Compositions and methods for the selective sequestration of metal ions are generally described.

Abstract: The present invention provides novel enterobactin-carrier protein conjugates and salmochelin-carrier protein conjugates, such as compounds of Formula (I), and salts thereof. The present invention also provides compositions, kits, and methods that involve the compounds of Formula (I) and are useful in inducing an immune response, treating a bacterial infection and/or inflammatory bowel disease in a subject, preventing a bacterial infection and/or inflammatory bowel disease in a subject, or inhibiting the growth of or killing a bacterium.

Abstract: The present invention provides novel enterobactin-cargo conjugates, such as compounds of Formula (I), and salts thereof, where X is the cargo and may be an antibiotic, a fluorophore, or biotin. The present invention also provides complexes, compositions, kits, and methods that involve the compounds of Formula (I) and are useful in delivering a cargo to a bacterium, treating a bacterial infection, cystic fibrosis, and/or inflammatory bowel disease in a subject, preventing a bacterial infection, cystic fibrosis, and/or inflammatory bowel disease in a subject, inhibiting the growth of or killing a bacterium, or determining the concentration of a bacterium in a biological sample. In certain embodiments, the bacterium is a Gram-negative bacterium.

Abstract: The present invention provides novel enterobactin-carrier protein conjugates and salmochelin-carrier protein conjugates, such as compounds of Formula (I), and salts thereof. The present invention also provides compositions, kits, and methods that involve the compounds of Formula (I) and are useful in inducing an immune response, treating a bacterial infection and/or inflammatory bowel disease in a subject, preventing a bacterial infection and/or inflammatory bowel disease in a subject, or inhibiting the growth of or killing a bacterium.

Abstract: The present invention provides novel enterobactin-cargo conjugates, such as compounds of Formula (I), and salts thereof, where X is the cargo and may be an antibiotic, a fluorophore, or biotin. The present invention also provides complexes, compositions, kits, and methods that involve the compounds of Formula (I) and are useful in delivering a cargo to a bacterium, treating a bacterial infection, cystic fibrosis, and/or inflammatory bowel disease in a subject, preventing a bacterial infection, cystic fibrosis, and/or inflammatory bowel disease in a subject, inhibiting the growth of or killing a bacterium, or determining the concentration of a bacterium in a biological sample. In certain embodiments, the bacterium is a Gram-negative bacterium.

Abstract: The present invention is directed, in part, to fluorescein-based ligands for detection of metal ions, and methods of making and using the same.