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. Author manuscript; available in PMC: 2011 Feb 2.
Published in final edited form as: Antivir Chem Chemother. 2010 Oct 28;21(1):1–14. doi: 10.3851/IMP1680

Figure 1.

Figure 1

(A) Structural types of nanogel carriers used in the study: PEG-cl-PEI(ss) (NG1), F68-cl-PEI(ss)(NG2), star PEG-g-PEI (NG3) and PAMAM-PEI-g-PEG(NG4). (B) Synthesis of the ApoE peptide-decorated nanogel NG1 by the attachment of bifunctional PEG linker to amino groups in the PEI backbone, following with a maleimide moiety modification by N-cysteine-ApoE peptide C-amide.