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Nanoscopic structure of physically cross-linked nanogels investigated by small-angle neutron scattering

Sekine, Yurina   ; Endo, Hitoshi*; Iwase, Hiroki*; Takeda, Shigeo*; Mukai, Sadaatsu*; Fukazawa, Hiroshi; Sasaki, Yoshihiro*; Akiyoshi, Kazunari*

Cholesterol-bearing pullulan (CHP) forms stable nanogel of 20 nm in size in water. The CHP nanogels can trap various proteins spontaneously. Owing to their characteristics, nanogels can be used in protein delivery systems, particularly for cancer vaccines. The spatial distribution and detailed structure of the cross-linking points are important factor determining their chemical and physical functions. The aim of this study is to investigate the structure of the nanogels by means of contrast variation small-angle neutron scattering (CV-SANS), which enables us to determine quantitative complex structure at nanometer scale. In this presentation, we will discuss the detailed structure of the CHP nanogel.

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