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. 2020 Jul 29;7(7):200775. doi: 10.1098/rsos.200775

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© 2020 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Scheme 2. — Metal-amino acid and ninhydrin reaction in pure water and gemini micellar systems. k_w ( = k′_w/[(Nin)_w]) and $k_{m} (= k_{m}^{'} / M_{N}^{S})$ refer to second rate constant in pure water and geminis. D_n (= [total surfactant]-cmc) signifies micellized surfactant.