Abstract:
PURPOSE: A liquid particle generating apparatus is provided to optimally maintain the concentration and the temperature of a solution containing particles. CONSTITUTION: A liquid particle generating apparatus includes a container(10), an outlet(15), an air inlet(20), a connecting pipe(30), and an agitating unit(50). The connecting pipe includes an air introducing hole(21), a solution discharging hole(32), and a solution introducing hole(31). The solution discharging hole is in connection with the air inlet. The solution introducing hole is in connection with the container. The agitating unit agitates a liquid solution in the container. The liquid solution is introduced into the air inlet through the connecting pipe based on the pressure change of air introduced into the air inlet such that the air contains liquid particles. The air containing the liquid particles are discharged through the outlet.
Abstract:
PURPOSE: A chitosan-spermine graft copolymer is provided to have excellent adhesion to DNA, to effectively protect DNA from nuclease, and to form a composite of uniform particle size suitable for using as a gene vector. CONSTITUTION: A chitosan-spermine graft copolymer is in chemical formula 1. In chemical formula 1, the chitosan has molecular weight of 2-500 kDa, the chitosan and the spermine has molar ratio of 1:2-1:10. The copolymer has average particle size of 50-200 nm. A manufacturing method of the chitosan-spermine graft copolymer comprises: a step of manufacturing periodate-oxidized chitosan by treating the chitosan with periodate; and a step of reacting the periodate-oxidized chitosan with spermine.
Abstract:
본 발명은 공액화 리놀레산 폴록사머를 담체로 하여 파클리탁셀을 적재시킨 신규한 항종양 활성 국소 약물 전달 시스템으로서 파클리탁셀 적재 공액화 리놀레산 폴록사머 하이드로겔에 관한 것으로, 본 발명에 따른 PTX 적재 CLA-결합 폴록사머 하이드로겔 약물 전달 시스템은 CLA-결합 폴록사머 하이드로겔을 PTX의 국소 전달용 시스템으로 사용함으로써 in vtro에서 PTX의 세포독성을 증가시키고, in vivo에서 종양 부피를 유의적으로 감소시켜 상승적인 항종양 활성을 나타내는 효과가 있다. 공액화 리놀레산, 파클리탁셀, 폴록사머, 하이드로겔
Abstract:
A gene therapy agent for preventing and treating lung cancer is provided to obtain an effective invasive model of gene delivery through the delivery of CTMP mediated with Lentivirus by aerosol and to effectively suppress the control of Akt1 for preventing and treating the lung cancer and cell cycle. A gene therapy agent for preventing and treating lung cancer contacts lung tumor cells with an agent reducing the Akt1 activity and a genetic vector. The agent reducing the Akt1 activity is selected from the group consisting of lentivirus, antisense molecule, antagonist, ribozyme, inhibitor and peptide. CTMP(carboxyl terminal modulator protein) is used as the genetic vector. The contact comprises liposome, nanoliposome, ceramide - containing nanoliposome, proteoliposome, nanoparticulate, calcium phosphorus-silicate nanoparticulate, calcium phosphate nanoparticulate, silicon dioxide nanoparticulate, nanocrystalline nanoparticulate, semiconductor nanoparticulate, poly(D-arginine), nano dendrimer, virus and calcium phosphate nucleotide-mediated nucleotide deliver, electroporation, usage of microinjection and aerosol transmission.
Abstract:
본 발명은 간세포 표적 유전자 전달체로서 갈락토실화 폴리에틸렌글리콜-키토산-그라프트-스페르민(GPCS) 공중합체 및 이를 이용한 유전자 치료에 관한 것이다. 본 발명의 갈락토실화 폴리에틸렌글리콜-키토산-그라프트-스페르민 공중합체는 DNA에 높은 결합능을 나타내어 안정적으로 구형 입자의 복합체를 형성하고, 상기 복합체는 유전자 전달체로 사용하기에 적합한 균일한 입자 크기 분포 및 양성 제타 전위를 가지며, 시험관 내 및 생체 내 세포독성은 매우 낮으면서 우수한 간세포 표적능을 나타내어 간세포 표적 유전자 전달체로서 유용하게 사용될 수 있다.
Abstract:
본 발명은 sodium-dependent inorganic phosphate transporter-2b 유전자의 암치료 및 스크리닝 용도에 관한 것으로, 보다 구체적으로 sodium-dependent inorganic phosphate transporter-2b 유전자 또는 상기 유전자로부터 발현된 단백질의 억제제와 이를 포함하는 암 치료용 조성물 및 상기 유전자 또는 유전자로부터 발현된 단백질을 포함하는 항암물질 스크리닝용 조성물, 이를 이용한 항암물질 스크리닝 방법 및 암 진단용 키트에 관한 것이다. 본 발명의 sodium-dependent inorganic phosphate transporter-2b 유전자는 AKT의 활성화를 통하여 암세포의 발생을 유도하고, 증식속도를 증가시키는 데 관여하기 때문에, sodium-dependent inorganic phosphate transporter-2b 유전자 및 단백질의 억제제를 사용하여 암의 발생 및 성장을 억제하는 효과를 얻을 수 있어 효과적인 암 치료용 조성물 및 항암물질 스크리닝용 조성물을 제공할 수 있다. sodium-dependent inorganic phosphate transporter-2b 유전자, 폐암 치료, AKT, 에어로졸 방식 유전자 전달
Abstract:
PURPOSE: A biodegradable polysorbate osmotically active transporter is provided to improve transduction efficiency. CONSTITUTION: A biodegradable polysorbate osmotically active transporter(PSOAT) is denoted by chemical formula 1. A method for preparing the PSOAT comprises: a step of dissolving a sorbitol derivatives and low molecular polyethylene imine(PEI) in each reaction solvent; a step of adding low molecular polyethylene imine(PEI) solution to the sorbitol derivative solution; and a step of isolating copolymers from the reactant. The sorbitol derivative is sorbitol dimethacrylate(SDM) of chemical formula 4.
Abstract:
PURPOSE: An apparatus for treating or testing toxic properties is provided to improve the transfer efficiency of an experimental material. CONSTITUTION: An apparatus for treating or testing toxic properties comprises a nebulizer(100), an experiment chamber(200), a flow controller(300), and a HEPA filter(400). The nebulizer manufactures an experimental material of a minute particle type. An experimental material is distributed into the respiratory organs of an experimental object at an equal concentration to the experiment chamber. The flow controller is connected to the experiment chamber and controls the flow amount of air flowing into the experiment chamber. The HEPA filter supplies clean air to the flow controller.