Atropine-functionalized gold nanoparticles binding to muscarinic receptors after passage across the intestinal epithelium.

ABSTRACT: Gold nanoparticles have a high potential to be a treatment of diseases by their specific drug delivery properties and multivalent receptor stimulation. For the present project, spherical gold nanoparticles were synthesized and functionalized with the muscarinic receptor antagonist atropine (Au-MUDA-AT NPs). The diameter of the gold core could precisely be controlled by using different synthetic methods and reducing agents resulting in functionalized gold nanoparticles with diameters ranging from 8 to 16 nm. The ability to interact with intestinal muscarinic receptors is size-dependent. When using intestinal chloride secretion induced by the stable acetylcholine derivative, carbachol, as read-out, the strongest inhibition, i.e. the most efficient blockade of muscarinic receptors, was observ

SUBMITTER: Claßen R 

PROVIDER: S-EPMC9533000 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature