Stabilization of amphiphilic block copolymer nanotubes and vesicles by photopolymerization

R. Kishore; A. Jofre; J. B. Hutchison; M. Allegrini; L. E. Locascio; K. Helmerson

doi:10.1117/12.695301

20 December 2006 Stabilization of amphiphilic block copolymer nanotubes and vesicles by photopolymerization

R. Kishore, A. Jofre, J. B. Hutchison, M. Allegrini, L. E. Locascio, K. Helmerson

Author Affiliations +

Proceedings Volume 6415, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems III; 64150Y (2006) https://doi.org/10.1117/12.695301
Event: SPIE Smart Materials, Nano- and Micro-Smart Systems, 2006, Adelaide, Australia

Abstract

We create long polymer nanotubes by directly pulling on the membrane of polymersomes using either optical tweezers or a micropipette. The polymersomes are composed of amphiphilic diblock copolymers and the nanotubes formed have an aqueous core connected to the aqueous interior of the polymersome. Stabilized membranes of nanotubes and vesicles were formed by the directed selfassembly of poly(ethylene oxide)-block-polybutadiene, followed by photopolymerization, initiated by UV light, to a maximum double bond conversion of 15%. The photopolymerized nanotubes are extremely robust. The applicability of photopolymerization for biophysics and bioanalytical science is demonstrated by electrophoresing DNA molecules through a stabilized nanotube with an integrated vesicle reservoir.

Citation Download Citation

R. Kishore, A. Jofre, J. B. Hutchison, M. Allegrini, L. E. Locascio, and K. Helmerson "Stabilization of amphiphilic block copolymer nanotubes and vesicles by photopolymerization", Proc. SPIE 6415, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems III, 64150Y (20 December 2006); https://doi.org/10.1117/12.695301

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