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Light-Controlled Hierarchical Self-Assembly of Polyelectrolytes and Supramolecular Polymers

Matson, John B.; Navon, Yotam; Bitton, Ronit; Stupp, Samuel I.

Customer publications

Light-Controlled Hierarchical Self-Assembly of Polyelectrolytes and Supramolecular Polymers

Matson, John B.; Navon, Yotam; Bitton, Ronit; Stupp, Samuel I.

Dynamic control over supramolecular interactions using various stimuli continues to drive the development of smart materials. We describe here the extension of dynamic self-assembly to a self-assembled hierarchical structure. A peptide amphiphile (PA) was designed with a photocleavable nitrobenzyl ester component such that it would undergo a sphere-to-cylinder transition upon…
Adsorption of F127 onto Single-Walled Carbon Nanotubes Characterized Using Small-Angle Neutron Scattering

Kastrisianaki-Guyton, E. S.; Chen, L.; Rogers, S. E.; Cosgrove, T.; van Duijneveldt, J. S.

Customer publications

Adsorption of F127 onto Single-Walled Carbon Nanotubes Characterized Using Small-Angle Neutron Scattering

Kastrisianaki-Guyton, E. S.; Chen, L.; Rogers, S. E.; Cosgrove, T.; van Duijneveldt, J. S.

Aqueous single-walled carbon nanotube dispersions are often made using polymers from the pluronic family of amphiphilic block copolymers; however, relatively few studies have been conducted using small-angle neutron scattering techniques to discover the mechanism by which they act. SANS results reported here show that a relatively simple core?shell cylinder model…
Achieving grazing-incidence ultra-small-angle X-ray scattering in a laboratory setup

Zheng, N.; Yi, Z.; Li, Z.; Chen, R.; Lai, Y.; Men, Y.

Customer publications

Achieving grazing-incidence ultra-small-angle X-ray scattering in a laboratory setup

Zheng, N.; Yi, Z.; Li, Z.; Chen, R.; Lai, Y.; Men, Y.

A grazing-incidence sample stage was designed for realizing grazing-incidence scattering measurements, especially in the ultra-small-angle regime, in a modified Xenocs Xeuss system in the laboratory. The designed sample stage, which is composed of four separate motorized positioning stages, allows the sample to be moved along four different directions to locate…