Bioconjugate Chemistry American Chemical Society (ACS) 31 (5) 1320 - 1326 1043-1802 2020/05 [Refereed]
Enhanced Function of Chondrocytes in a Chitosan-based Hydrogel to Regenerate Cartilage Tissues by Accelerating Degradability of the Hydrogel via a Hydrolysable Cross-Linker
Polymer having complexes with different metal species in sidechains as DNA binding macromolecules; Investigation on metal species-dependent function for regulating the gene expression
Shigehito Osawa, Remi Watanabe, Hidenori Otsuka
第70回高分子年次大会 2021/05 Oral presentation オンライン
銅錯体を側鎖に導入した高分子鎖
大澤重仁、木内真穂、北西健一、大塚英典
第27回次世代医工学研究会 2020/12 Poster presentation オンライン開催
Promoted Copper Catalyzed Redox Activity through Constructing Locally Concentrated State of Copper Complexes on a Polymer Chain
Fabrication of Insulin-like Growth Factor-1 Conjugated IPN gel and Controlling Length of the Conjugation Linker for Enhancement of the Embedded Chondrocytes Function
Random copolymer grafting oligo (ethylene glycol)s and zinc complexes with dipicolylamine to design polyplex loading plasmid DNA toward gene delivery [Not invited]
Fabrication of micropatterned substrate for forming and collecting spheroids based on phase transition of spin-coated thermo-responsive polymer [Not invited]
Kota Miyanaga; Shohei Ishikawa; Shigehito Osawa; Hidenori Otsuka
Enhanced Function of Chondrocytes in Degradable IPN gel by Accelerating Spatial Motility of Chemically Conjugated Growth Factor via PEG Linker in Hydrogel [Not invited]
Tissue Engineering & Regenerative Medicine International Society – AP Chapter and the 7th Asian Biomaterials Congress (TERMIS-AP + ABMC7 2019) 2019/10 Poster presentation Brisbane
Fabrication of Growth Factor Conjugated Injectable IPN gel and Controlling the Conjugation-Linker Length to Improve Three-Dimensionally Cultured Chondrocyte Function [Not invited]
Preparation of Growth Factor Conjugated Injectable IPN Hydrogel and the Effect of Conjugation-Linker Length on Improvement of Embedded Chondrocyte Function [Not invited]
1st G’L’owing Polymer Symposium in KANTO 2018/12 Oral presentation 早稲田大学西早稲田キャンパス
Accelerated polymerization of dipicolylamine acrylate monomer via pre-formation of the monomer metal complex [Not invited]
Sosuke Kurokawa; Shigehito Osawa; Hidenori Otsuka
1st G’L’owing Polymer Symposium in KANTO 2018/12 Oral presentation 早稲田大学西早稲田キャンパス
Preparation of Injectable and Biodegradable Hydrogel with Interpenetrating Polymer Network Based on Self-assembling Peptide and Chitosan for Promoting Cartilage Tissue Regeneration [Not invited]
Water on Materials Surface 2018 2018/07 Poster presentation 東京理科大学葛飾キャンパス
Evaluation of water content and protein adsorption on the substrates decorated by oligo ethylene glycol based comb polymers with different chain density [Not invited]
Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
Date (from‐to) : 2018/04 -2020/03
Author : Shigehito Osawa
We tried to develop novel eye drop medicine for retinal diseases.Herein, nanoparticles were prepared to have a nucleic acid component that produces therapeutic proteins in eye tissue and a hydrophobic component to avoid rapid elimination by tears after instillation. As a result of instilling the prepared particles into eyes of mice, the expected protein production was not observed, but high protein expression was observed when administered intraocularly. In order to enhance the effect as an eye drop medicine, it would be required to increase the hydrophobicity of the nanoparticles or to utilize other interactions between the nanoparticles and cell surface to enhance the transfer of the therapeutic nucleic acids into the eye.