Cationic Polymers without cell toxicity
Cationic polymers are known to be used as nucleic drug delivery carrier because they are ease to be introduced into cells. However, it has been reported that the cationic polymers may inhibit cell proliferation by unspecific binding to intracellular proteins. This invention provides cationic polymer nanoparticles (nanogels) for intracellular delivery without inhibiting cell proliferation, by conducting radical polymerization reaction using a cationic polymerization initiator ADIP. Properties of NIPAM-based cationic nanogels synthesizing through ADIP: ・Can be delivered into many kinds of cells (e.g. HeLa) simply by mixing cells and the nanogels without special treatment ・In cells, nanogels do not effect the cell division or the differentiation of the brown adipocyte ・Intracellular temperature can be measured because of the heat-sensitive unit NIPAM
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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