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. 2012 Apr 27;12(5):5445–5460. doi: 10.3390/s120505445

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© 2012 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 license (http://creativecommons.org/licenses/by/3.0/).

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Figure 7. — The effect of (a) varying of Na-phosphate buffer concentration (pH 7.5) and (b) different ionic strength (I) on the biosensor response. 5.0 μM of complementary DNA was used for the hybridization process.