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Ryu, Ja-Hyoung
Supramolecular NanoMaterials Lab (SUN)
Research Interests
  • Supramolecular assembly, synthetic peptide assembly, cancer drug delivery

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Effect of Hofmeister Ions on the Size and Encapsulation Stability of Polymer Nanogels

Cited 5 times inthomson ciCited 2 times inthomson ci
Title
Effect of Hofmeister Ions on the Size and Encapsulation Stability of Polymer Nanogels
Author
Li, LongyuRyu, Ja-HyoungThayumanavan, S.
Keywords
Chaotropes; Core densities; Host-guests; Macroscopic phase transitions; Nanogels; Oligo(ethylene glycol); Polymeric aggregates; Pyridyl disulfide; Random copolymer; Self-crosslinking; Side-chain functionalities; Stimuli-responsive
Issue Date
201301
Publisher
AMER CHEMICAL SOC
Citation
LANGMUIR, v.29, no.1, pp.50 - 55
Abstract
Influence of Hofmeister ions has been investigated on the size and guest encapsulation stability of a polymeric nanogel. While variations in macroscopic phase transitions have been observed in response to the presence of salts, changes in the size and host-guest behavior of polymeric aggregates in the presence of salts have not been explored in any detail. We find that the size and core density of nanogel, which was prepared by self-crosslinking from a random copolymer that contains oligo(ethylene glycol) (OEG) and pyridyl disulfide (PDS) units as side-chain functionalities, can be fine-tuned through the addition of both chaotropes and kosmotropes during nanogel formation. We also demonstrate that the change in core density affects the guest encapsulation stability and stimuli-responsive character of the nanogel.
URI
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DOI
http://dx.doi.org/10.1021/la3033463
ISSN
0743-7463
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