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. 2009 Jan 23;9(1):645–655. doi: 10.3390/s90100645

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© 2009 by the authors; licensee Molecular Diversity Preservation International, 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 1. — Chemical structures of (a) Poly(ethylene glycol) methacrylate, (b) Poly(ethylene glycol) diacrylate, and (c) Poly(ethylene glycol) dimethacrylate.