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. 2018 Feb 13;9:179. doi: 10.3389/fmicb.2018.00179

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Copyright © 2018 Mondal, Ramlal, Lavu, N and Kingston.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Selectivity of Gold nano particle based colorimetric detection assay. (A) Absorption spectra of AuNPs/aptamer mixed solutions in the presence of other related toxin. (B) Absorption value at 620 nm of AuNPs/aptamer mixed solutions in the presence of other related toxin. (C) Visual observation of AuNPs/aptamer mixed solutions in presence of other related toxin.