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In article number 2004702, Marco Beaumont, Orlando J. Rojas, and co‐workers demonstrate adsorbed layers of cationic cellulose nanospheres with an unprecedented high protein adsorption capacity compared to typical polymer coatings. The proposed platform overcomes the sensitivity limitations of immunosensors currently used (Image credit: Luiz G. Greca, Aalto University).
Soft cationic core/shell cellulose nanospheres can deform and interpenetrate allowing their self‐assembly into densely packed colloidal nanogel layers. Taking advantage of their water‐swelling capacity and molecular accessibility, the nanogels are proposed as a new and promising type of coating material to immobilize bioactive molecules on thin films and paper. The specific and nonspecific interactions...
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