K. Nagahama, Y. Ohya, T. Ouchi, The Suppression of Cell and Platelet Adhesion to Star-Shaped Poly(ethylene glycol)-Poly(L-lacitde) Block Copolymer Film, Macromol. Biosci. 2006, 6, 412-419.
K. Nagahama, Y. Ohya, T. Ouchi, Synthesis of Star-Shaped 8-Arms Poly(ethylene glycol)-Poly(L-lacitde) Block Copolymer and Physical Properties of Its Solution Cast Film as Soft Biomaterial, Polym. J. 2006, 38, 852-860.
Y. Ohya, T. Nakai, K. Nagahama, T. Ouchi, S. Tanaka, K. Kato, The Synthesis and Biodegradability of Poly(lactide-random-depsipeptide)-PEG-Poly(lactide-random-depsipeptide) ABA-Type Triblock Copolymers, J. Bioact. Compat. Polym. 2006, 21, 557-577.
K. Nagahama, Y. Nishimura, Y. Ohya, T. Ouchi, Impacts of Stereoregularity and Stereocomplex Formation on Physicochemical, Protein Adsorption and Cell Adhesion Behaviors of Star-Shaped 8-Arms Poly(ethylene glycol)-Poly(lactide) Block Copolymer Films, Polymer, 2007, 48, 2649-2658.
K. Nagahama, Y. Mori Y. Ohya, T. Ouchi, Biodegradable Nanogel Formation of Polylactide-Grafted Dextran Copolymer in Dilute Aqueous Solution and Enhancement of Its Stability by Stereocomplexation, Biomacromolecules 2007, 8, 2135-2141.
Y. Ohya, S. Takamido, K. Nagahama, T. Ouchi, T. Ooya, R. Katoono, N. Yui, Molecular "Screw and Nut": alpha-Cyclodextrin Recognizes Polylactide Chirality, Macromolecules 2007, 40, 6441-6444.
K. Nagahama, Y. Ueda, T. Ouchi, Y. Ohya, Exhibition of Soft and Tenacious Characters Based on Liquid Crystal Formation by Introduction of Cholesterol Groups on Biodegradable Lactide Copolymer, Biomacromolecules 2007, 8(12) 3938-3943.
K. Nagahama, T. Ouchi, Y. Ohya, Biodegradable Nanogels Prepared by Self-Assembly of Poly(L-lactide)-Grafted Dextran: Entrapment and Release of Protein, Macromol. Biosci. 2008, 8, 1044-1952.
K. Nagahama, K. Fujiura, S. Enami, T. Ouchi, Y. Ohya, Irreversible Temperature- Responsive Formation of High-Strength Hydrogel from an Enantiomeric Mixture of Starburst Triblock Copolymers Consisting of 8-Arm PEG and PLLA or PDLA, J. Polym. Sci. Part A: Polym. Chem. 2008, 46, 6317-6332.
K. Nagahama, T. Ouchi, Y. Ohya, Temperature-Induced Hydrogel through Self-Assembly of Cholesterol-Substituted Star PEG-b-PLLA Copolymers as an Injectable Scaffold for Tissue Engineering, Adv. Funct. Mater. 2008, 18, 1220-1231.