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. 2014 Dec 8;18:19. doi: 10.1186/2055-7124-18-19

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© Li and Huh; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Polyelectrolyte nanocomplex with controllable photoactivity prepared by ionic interactions between a cationic polymeric PS and an anionic polysaccharide quencher for PDT. (A) Chemical structure of cationic water soluble polymeric PS (poly(ethylene glycol)-polyethylenimine-chlorine e6 conjugate (PEG-PEI-Ce6)) and anionic polysaccharide quencher (Black Hole Quencher-3 chondroitin sulfate conjugate (BHQ-3-CS)). (B) Synthesis of opposite charged polyelectrolyte and facile preparation of nano-PS in the aqueous phase. Reproduced with permission from: [53].