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  • pH-induced morphology-shifting of DNA-b-poly(propylene oxide) assemblies.

pH-induced morphology-shifting of DNA-b-poly(propylene oxide) assemblies.

Chemical communications (Cambridge, England) (2012-08-25)
Zhiyong Zhao, Liying Wang, Yu Liu, Zhongqiang Yang, Yan-Mei He, Zhibo Li, Qing-Hua Fan, Dongsheng Liu
ABSTRACT

The designed DNA sequences can make DNA-b-PPO undergo in situ transition between diblock and triblock upon pH changes, consequently, induce a morphology-shifting from spherical micelles to nanofibers. This process is reversible and the assembled structures have been characterized by CD, TEM and fluorescent experiments.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Poly(propylene glycol), average Mn ~1,000
Sigma-Aldrich
Poly(propylene glycol), average Mn ~2,000
Sigma-Aldrich
Poly(propylene glycol), average Mn ~4,000
Sigma-Aldrich
Poly(propylene glycol), average Mn ~2,700
Sigma-Aldrich
Polypropylene glycol, P 2,000
Sigma-Aldrich
Poly(propylene glycol), average Mn ~425
Sigma-Aldrich
Poly(propylene glycol), average Mn ~725
Sigma-Aldrich
Polypropylene glycol, P 400