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. 2019 Nov 22;9(12):1670. doi: 10.3390/nano9121670

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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(A) Comparing in vitro immunological activity for two physiological metal oxide nanoparticles (NP). (B) Dose-response of NP on IL-8 (inset plots HSI results for Co₃O₄ NP).