This is the accepted version of the article: Díaz, Raquel; Pallarès, Victor; Cano Garrido, Olivia; [et al.]. «Selective CXCR4+ Cancer Cell Targeting and Potent Antineoplastic Effect by a Nanostructured Version of Recombinant Ricin». Small, Vol. 14, issue 26 (June 2018), art. 1800665. DOI 10.1002/smll.201800665 This version is available at https://ddd.uab.cat/record/236681 under the terms of the license brought to you by CORE View metadata, citation and similar papers at core.ac.uk provided by Diposit Digital de Documents de la UAB