Molecular bottlebrushes

…, K Fischer, M Schmidt, I Wataoka, H Urakawa… - …, 1996 - ACS Publications
Polymacromonomers consisting of oligostyrene side chains (700 ≤ M n ≤ 5000 g/mol) and
of a high molar mass polymethacrylate main chain are shown to exhibit a bottlebrush …

Small-angle x-ray scattering and rheological characterization of alginate gels. 1. Ca− alginate gels

…, KI Draget, O Smidsrød, Y Yuguchi, H Urakawa… - …, 2000 - ACS Publications
Ca−alginate gels were studied by small-angle X-ray scattering and rheology to determine
relations between chemical composition and concentrations of the alginate and the elasticity …

Inhibition of hyaluronan synthesis in breast cancer cells by 4‐methylumbelliferone suppresses tumorigenicity in vitro and metastatic lesions of bone in vivo

H Urakawa, Y Nishida, J Wasa, E Arai… - … journal of cancer, 2012 - Wiley Online Library
Hyaluronan (HA) has been shown to play crucial roles in the tumorigenicity of malignant
tumors. Previous studies demonstrated that inhibition of HA suppressed the tumorigenicity of …

Structural characteristics of carrageenan gels: temperature and concentration dependence

Y Yuguchi, TTT Thuy, H Urakawa, K Kajiwara - Food hydrocolloids, 2002 - Elsevier
κ- and ι-carrageenan in aqueous solution undergoes reversible sol/gel transition by cooling
or increasing concentration. The small-angle X-ray scattering profiles from carrageenans …

Structural characteristics of carrageenan gels: various types of counter ions

Y Yuguchi, H Urakawa, K Kajiwara - Food Hydrocolloids, 2003 - Elsevier
The gelation mechanism of κ- and ι-carrageenan with various types of monovalent counter
ions are considered by means of small-angle X-ray scattering. The extent of chain …

Small-angle X-ray scattering and rheological characterization of alginate gels. 3. Alginic acid gels

KI Draget, BT Stokke, Y Yuguchi, H Urakawa… - …, 2003 - ACS Publications
Alginic acid gels were studied by small-angle X-ray scattering and rheology to elucidate the
influence of alginate chemical composition and molecular weight on the gel elasticity and …

MR elastography of the liver at 3.0 T in diagnosing liver fibrosis grades; preliminary clinical experience

…, Y Shinagawa, R Fujimitsu, A Morita, H Urakawa… - European …, 2016 - Springer
Objectives To clarify the usefulness of 3.0-T MR elastography (MRE) in diagnosing the
histological grades of liver fibrosis using preliminary clinical data. Materials and methods …

Suppression of hyaluronan synthesis alleviates inflammatory responses in murine arthritis and in human rheumatoid synovial fibroblasts

Y Yoshioka, E Kozawa, H Urakawa, E Arai… - Arthritis & …, 2013 - Wiley Online Library
Objective To clarify the roles of hyaluronan (HA) in joint inflammation and the process of joint
destruction, using 4‐methylumbelliferone (4‐MU), an inhibitor of HA synthesis, in a mouse …

Molecular characteristics and gelling properties of the carrageenan family, 1. Preparation of novel carrageenans and their dilute solution properties

…, H Yasunaga, R Takano, H Urakawa… - Macromolecular …, 2002 - Wiley Online Library
The carrageenans are a family of sulfated polysaccharides extracted from red seaweed, and
are conventionally classified into three major groups as κ‐, ι‐ and λ‐carrageenan according …

Lyotropic phases formed by “molecular bottlebrushes”

…, M Schmidt, K Kajiwara, H Urakawa… - … Edition in English, 1995 - Wiley Online Library
… Matthias Wintermantel, Karl Fischer, Markus Gerle, Roland Ries, Manfred Schmidt,* Kanji
Kajiwara, Hiroshi Urakawa, and Isao Wdtaoka … Urakawa. Dr. I. …