Guanosine-rich aptamers@Cu2O nanoparticles: enhanced peroxidase activity and specific recognition capability at neutral pH

摘要

The decoration of Cu2O nanoparticles with guanosine-rich aptamers can significantly enhance their peroxidase activity at neutral pH and endow them with specific recognition capabilities. Both the phosphate backbone and guanine of the aptamers contribute to the enhancement. The excellent enzyme-like properties of this Cu2O-aptamer system make it a versatile platform for the development of neutral pH biosensors.