| Budget Amount *help |
¥27,820,000 (Direct Cost: ¥21,400,000、Indirect Cost: ¥6,420,000)
Fiscal Year 2013: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2012: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2011: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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| Research Abstract |
We have so far developed polyion complex vesicles (PICsomes) with well-controlled size in the size ranging from 100 to 400 nm. PICsomes are characterized by their biocompatibility and semipermeable vesicle membrane. Therefore, enzyme-loaded PICsomes are promising for enzyme-based nanoreactors, which can work inside of cells as an artificial organelle. In this research project, we tried to develop "artificial organelle"utilizing PICsomes. The preparation method of nano-reactors was successfully established through encapsulation of enzymes in PICsomes without deactivation. Also, we investigated the interaction between chemically-modified PICsomes and cells, and evaluated and found major factors for further cellular uptake. Results indicated that degree of cross-linking of PIC membrane and deformability of PICsomes contribute cellular uptake to some extent.
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