Abstract:
본 발명은 표피성장인자와 리포좀의 하이브리드형 다중층 나노구조체 및 그 제조방법에 관한 것이다. 상기 새로운 형태의 하이브리드형 다중층 나노구조체는 표피성장인자의 봉입효율이 높을 뿐만 아니라 제조 과정이 간단하여 표피성장인자의 높은 생리활성을 유지한 채 생체 내 혹은 세포 내로 전달하는 데에 용이하다.
Abstract:
본 발명은 핵산분자를 친수성 블록으로 갖는 양친매성 블록 공중합체, 그 제조방법, 상기 양친매성 블록 공중합체와 양이온성 전달체를 포함하는 다중이온복합체, 상기 다중이온복합체를 포함하는 자기조립체 및 상기 자기조립체를 포함하는 핵산전달용 조성물에 관한 것이다. 보다 구체적으로 핵산분자를 친수성 블록으로 가져 전하밀도와 유연성의 증가로 보다 효과적으로 다중이온복합체를 형성할 수 있으며, 소수성 블록을 도입함으로써 소수성 상호작용에 의해 양이온성 전달체와 보다 조밀하고, 안정적인 다중이온복합체를 형성하여 세포 내로의 전달 효율을 높일 수 있다.
Abstract:
The present invention relates to an amphiphilic block copolymer having a nucleic acid molecule as a hydrophilic block, a method for producing the same, a polyion composite including the amphiphilic block copolymer and a cationic carrier, a self-assembly including the polyion composite, and a composition for carrying nucleic acids, including the self-assembly. More particularly, a nucleic acid molecule is contained as a hydrophilic block so that charge density and flexibility are increased and a polyion composite can be effectively produced thereby. A hydrophilic block is induced to cause a hydrophilic interaction so that a cationic carrier and a compact and stable polyion composite are produced and an intracellular delivery effect can be improved.
Abstract:
The present invention relates to polysaccharides derivatives in which siRNA is grafted, a gene carrier comprising the same, and a method for manufacturing the same. In the siRNA carrier according to the present invention, since polysaccharides is located on the surface of the carrier, the dispersion stability is high so the siRNA carrier can be stable in the body for a long time without aggregation, thereby effectively suppressing the protein expression of a target gene, and the siRNA can be easily restored into the original structure of siRNA having a bioactivity in the cell after entering the body. Also, the present invention dramatically improves therapeutic effects by introducing functional molecules appropriate for target therapies according to various target diseases using the polysaccharides functional group located on the surface of the siRNA carrier, thereby being able to be used in various fields of gene therapy using siRNAs.