In a recent study in mice, researchers found a way to deliver specific drugs to parts of the body that are exceptionally difficult to access. Their Y-shaped block catiomer (YBC) binds with certain therapeutic materials forming a package 18 nanometers wide. The package is less than one-fifth the size of those produced in previous studies, so it can pass through much smaller gaps. This allows YBCs to slip through tight barriers in cancers of the brain or pancreas.
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Source: Phys.org