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Self-beating artificial cells: design of cross-linked polymersomes showing self-oscillating motion.

Self-beating artificial cells: design of cross-linked polymersomes showing self-oscillating motion.

Advanced materials (Deerfield Beach, Fla.) (2014-12-17)

Ryota Tamate, Takeshi Ueki, Ryo Yoshida

ABSTRACT

Biomimetic cross-linked polymersomes that exhibit a self-beating motion without any on-off switching are developed. The polymersomes are made from a well-defined synthetic thermoresponsive diblock copolymer, and the thermoresponsive segment includes ruthenium catalysts for the oscillatory chemical reaction and vinylidene groups to cross-link the polymersomes. Autonomous volume and shape oscillations of the cross-linked polymersomes are realized following redox changes of the catalysts.

MATERIALS

Product Number

Brand

Product Description

Sigma-Aldrich

N-(3-Aminopropyl)methacrylamide hydrochloride, contains ≤1,000 ppm MEHQ as stabilizer, 98% (HPLC)

Sigma-Aldrich

Dimethyl ether, ≥99.9%

Supelco

Toluene, analytical standard

Sigma-Aldrich

Toluene, anhydrous, 99.8%

Supelco

Hexane, analytical standard

Sigma-Aldrich

Dimethyl ether, puriss., ≥99.9% (GC)

Sigma-Aldrich

Dimethyl ether, puriss., ≥99.9% (GC)

Sigma-Aldrich

Hexane, suitable for HPLC, ≥97.0% (GC)

Sigma-Aldrich

Hexane, suitable for HPLC, ≥95%

Supelco

Toluene, Pharmaceutical Secondary Standard; Certified Reference Material

Sigma-Aldrich

Toluene, ACS reagent, ≥99.5%

Sigma-Aldrich

Toluene, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.7% (GC)

Sigma-Aldrich

Toluene, suitable for HPLC, 99.9%

Sigma-Aldrich

Hexane, ReagentPlus^®, ≥99%

Sigma-Aldrich

Toluene, ACS reagent, ≥99.5%

Supelco

Residual Solvent - Toluene, Pharmaceutical Secondary Standard; Certified Reference Material

Sigma-Aldrich

Hexane, Laboratory Reagent, ≥95%

Sigma-Aldrich

Toluene, Laboratory Reagent, ≥99.3%

Sigma-Aldrich

Toluene, ACS reagent, ≥99.5%

Sigma-Aldrich

Hexane, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99% (GC)

Sigma-Aldrich

Toluene, HPLC Plus, for HPLC, GC, and residue analysis, ≥99.9%

Sigma-Aldrich

Hexane, HPLC Plus, for HPLC, GC, and residue analysis, ≥95%