Journal Pre-proof Self-assembled gold nano islands for precise electrochemical sensing of trace level of arsenic in water Isha Fuletra, Chansi Gupta, Sumaya Nisar, Rashi Bharadwaj, Punya Saluja, Sheetal K. Bhardwaj, K. Asokan, Tinku Basu PII: S2352-801X(20)30662-7 DOI: https://doi.org/10.1016/j.gsd.2020.100528 Reference: GSD 100528 To appear in: Groundwater for Sustainable Development Received Date: 13 July 2020 Revised Date: 9 October 2020 Accepted Date: 11 November 2020 Please cite this article as: Fuletra, I., Gupta, C., Nisar, S., Bharadwaj, R., Saluja, P., Bhardwaj, S.K., Asokan, K., Basu, T., Self-assembled gold nano islands for precise electrochemical sensing of trace level of arsenic in water, Groundwater for Sustainable Development, https://doi.org/10.1016/ j.gsd.2020.100528. This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Elsevier B.V. All rights reserved.