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. 2013 Jul 11;8:2453–2463. doi: 10.2147/IJN.S46357

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© 2013 Gao et al, publisher and licensee Dove Medical Press Ltd

This is an Open Access article which permits unrestricted noncommercial use, provided the original work is properly cited.

PMC Copyright notice

Characterization of PCEC hydrogel. (A) Rheologic analysis of PCEC-micelles-PCEC-hydrogel dual-drug delivery system as a function of temperature. (B) Morphology of blank hydrogel (20 wt%) at 4°C and 37°C. (C) Scanning electron micrograph of PCEC hydrogel. (D) Cytotoxicity of the PCEC was determined by MTT assay.

Abbreviations: PCEC, poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone); MTT, 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide; HEK, human embryonic kidney.