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Self-assembly process of peptide amphiphile worm-like micelles

ペプチド両親媒性ミミズ状ミセルの構造形成

島田 智子*; 坂本 直紀*; 元川 竜平   ; 小泉 智*; Tirrell, M.*

Shimada, Tomoko*; Sakamoto, Naoki*; Motokawa, Ryuhei; Koizumi, Satoshi*; Tirrell, M.*

Peptide amphiphile molecules (PA) are remarkably versatile and useful as building blocks for construction of complex supramolecular structures in a bottom-up fashion. Worm-like micelles of PA have been demonstrated to have successful application to creation of synthetic extracellular matrix materials for tissue engineering and regenerative medicine. However, the pathway of the self-assembly process of the PA worm-like micelle has not been fully characterized or understood. This work analyzes the self-assembly process leading to worm-like micelle formation in our designed PA with small-angle neutron scattering and atomic force microscopy. The experimental results demonstrate the existence of transient spherical micelles in the early stage of the process and subsequent micelle chain elongation by attachment of spherical micelles to the end of growing cylindrical micelles to form worm-like micelles in a process mimicking chain-growth polymerization.

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パーセンタイル:75.21

分野:Chemistry, Physical

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