Described herein are phospholipid nanogels that can contain a low concentration (less than about 250 μUnits/μL) of an exoglycosidase enzyme. Also described herein are systems and devices that can contain a phospholipid nanogel that can contain a low concentration (less than about 250 μUnits/μL) of an exoglycosidase enzyme. Also described herein are methods of using the phospholipid nanogels described herein and devices and systems that can contain a phospholipid nanogel described herein.