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CO2-Responsive Polymeric Vesicles that Breathe

Authors

  • Qiang Yan,

    1. Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (86) 10-6277-1149
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  • Rong Zhou,

    1. Department of Chemistry, Brandeis University, Waltham, MA (USA)
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  • Changkui Fu,

    1. Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (86) 10-6277-1149
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  • Dr. Huijuan Zhang,

    1. Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (86) 10-6277-1149
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  • Prof. Yingwu Yin,

    1. Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (86) 10-6277-1149
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  • Prof. Jinying Yuan

    Corresponding author
    1. Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (86) 10-6277-1149
    • Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (86) 10-6277-1149
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  • This work was financially supported by the National Basic Research Program (2009CB930602) and the National Natural Science Foundation of China (51073090, 20974058, 20836004). The authors acknowledge Dr. Robert Shengkui Hu, VP Global Technology of Beckers CDF, for helpful discussion, and the help of Ms. Ling Hu at Tsinghua University with TEM characterization.

Abstract

original image

Vesicles breathe CO2! A new type of vesicle that self-assembles from amidine-containing diblock copolymer displays “breathing” features. Treating the vesicles with CO2 or Ar can reversibly tune the expansion and contraction of the vesicular volume, as if a bubble is breathing (see picture, PAD=poly((N-amidino)dodecyl acrylamide), PEO=poly(ethylene oxide), Rh=hydrodynamic radius).

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