Journal
NANO LETTERS
Volume 5, Issue 7, Pages 1279-1283Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl050422c
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I present an electroresponsive molecular actuator based upon a diblock copolymer of a positively charged dendrimer and a negatively charged linear chain. Brownian dynamics simulations demonstrate the hybrid polyampholyte's ability to apply a force or assume an equilibrium molecular strain tunable with an applied electric field. The free energy as a function of molecular strain at differing electric field strengths, as obtained via the Jarzynski identity, suggests a phase transition in the hybrid.
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