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Although liposomes have proven useful for the delivery of drugs and gene therapy vectors, their potencies are often compromised by poor unloading following uptake into their target cells. We have consequently explored the properties of a novel 29-residue amphipathic peptide that was designed by arrangement of hydrophobic and hydrophilic residues to disrupt liposomes at lower peptide concentrations...
Cell surface receptors for the vitamins folic acid and biotin have been previously reported to mediate the endocytosis of vitamin-conjugated macromolecules into cultured cells. To evaluate whether a similar uptake pathway for riboflavin-conjugated macromolecules might exist, riboflavin was covalently linked to bovine serum albumin (BSA) via the vitamin's ribityl side chain, and uptake of the protein...
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