title: Ion-exchange route to Au-Cu(x)OS yolk-shell nanostructures with porous shells and their ultrasensitive H2O2 detection.
abstract: In this letter, Au-Cu(x)OS yolk-shell nanostructures with porous shell are prepared through a facile ion exchange route from Au@Cu(2)O core-shell nanostructures. The as-prepared yolk-shell nanostructures exhibit ultrasensitive enzyme-free detection of H(2)O(2) molecules with higher sensitivity (50.41 μA μM(-1)) and lower detection limit (0.01 μM) as well with excellent anti-interference capacity in comparison with both hollow Cu(x)OS nanospheres and Au nanoparticles. Therefore, the obtained Au-Cu(x)OS yolk-shell nanostructures have potential application in ultralow concentration enzyme-free H(2)O(2) detection for biomedicine diagnosis.
authors.affiliation: College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Anhui Normal University, Wuhu, 241000, PR China.
authors.forename: Lizhen
authors.initials: L
authors.lastname: Zhou
authors.forename: Long
authors.initials: L
authors.lastname: Kuai
authors.forename: Wenzheng
authors.initials: W
authors.lastname: Li
authors.forename: Baoyou
authors.initials: B
authors.lastname: Geng