A Journal of www.chembiochem.org Accepted Article Title: Tuning the pH-response of i-motif DNA oligonucleotides Authors: Laurie Lannes; Saheli Halder; Yamuna Krishnan; Harald Schwalbe This manuscript has been accepted after peer review and the authors have elected to post their Accepted Article online prior to editing, proofing, and formal publication of the final Version of Record (VoR). This work is currently citable by using the Digital Object Identifier (DOI) given below. The VoR will be published online in Early View as soon as possible and may be different to this Accepted Article as a result of editing. Readers should obtain the VoR from the journal website shown below when it is pu- blished to ensure accuracy of information. The authors are responsible for the content of this Accepted Article. To be cited as: ChemBioChem 10.1002/cbic.201500182 Link to VoR: http://dx.doi.org/10.1002/cbic.201500182