Retraction Note: Fabrication of a microfluidic device for studying the in situ drug-loading/release behavior of graphene oxide-encapsulated hydrogel beads.

[This retracts the article DOI: 10.1186/s40824-018-0119-9.].

Correction

This article [1] has been retracted by the authors due to lack of permission to use and publish the data reported. All authors agree to this retraction.