Assertion: lipid's number | /r/CapableOf | focus on macromolecule delivery
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text: Finally, a considerable number of patents have focused on macromolecule delivery; nucleic acids and proteins are the future of pharmacological therapy, and both present comparable issues with stability, poor bioavailability, and high molecular weight, which hamper their use in current therapies and can also be a technological drawback for lipid nano- and microparticle loading.