Abstract:
The present invention relates to tumor-targeting gas-generating nanoparticles, a method for preparing the same, and tumor-targeting drug delivery nanoparticles using the same and, more specifically, to tumor-targeting gas-generating nanoparticles including a carbonate polymer core and an amphiphilic outer cover, a method for preparing the same, and tumor-targeting drug delivery nanoparticles using the same. The tumor-targeting gas-generating nanoparticles according to the present invention can be usefully used as an ultrasonic imaging agent since the nanoparticles generate a strong ultrasonic signal after being aggregated and accumulated in the tumor tissue and shows improved performance in tumor specific drug delivery since the nanoparticle has improved penetration and bodily fluid effects and improved cell transmission ability, and the like. [Reference numerals] (AA) Carbonate polymer core;(BB) Amphiphilic outer cover;(CC) Diffuse H_2O;(DD) Hydrolysis;(EE) Generate CO_2;(FF) Ultrasonic signal generation;(GG) Tumor accumulation;(HH) Bonding
Abstract:
본발명은리피오돌을함유하는컴퓨터단층촬영용혈관조영제의제조방법에관한것이다. 본발명에따른조영제는, 제조과정중에유기용매가사용되지않으므로생체적합성이우수하고, 양친매성성질을갖는고분자로감싸져있어서혈류내 체류성및 순환성이높으며, 균질성과재분산성이우수하다. 따라서, 기존의조영제가갖는짧은체내분포에기인하는문제를개선할수 있으므로, 각종질병의진단을위하여광범위하게사용할수 있다.
Abstract:
본 발명은 암 조직에 선택적으로 축적되고 레이저 조사에 의해 단일항산소 또는 자유라디컬 생성이 가능한 광역학 치료용 생체 적합성 고분자 유도체-광감작제 복합체에 대한 것으로서, 상세하게는 상기 고분자 유도체-광감작제 복합체는 나노입자로 제조되어 암 조직에 대한 선택성 및 축적성이 탁월하며 또한 상기 복합체의 광감작제는 특정 레이저 파장에 의해 단일항산소 또는 자유라디컬을 생성할 수 있다. 따라서, 본 발명의 복합체는 암조직에 대한 선택성 및 축적성이 탁월하므로 기존의 저분자 광감작제의 광독성의 부작용을 최소화시킴으로써 낮은 부작용과 높은 치료 효과를 갖는 광역학 치료용 광감작제로서 아주 유용하다. 광역학 치료, 고분자 유도체, 광감작제
Abstract:
본 발명은 세포 및 체내의 조직에서 발현되는 단백질 분해효소를 선택적으로 영상화하는 신규의 단백질 분해효소 활성 측정 센서에 관한 것이다. 본 발명에 따른 단백질 분해효소 영상화를 위한 센서는 세포 및 체내에서 다양하게 활성화되는 단백질 분해 효소에 특이적으로 분해되는 임의의 펩타이드 기질에 형광체와 소광체를 결합시킨 것으로서, 상기 펩타이드 기질의 분해시에 형광을 발광하게 된다. 본 발명의 센서는 단백질 분해효소의 정성 및 정량 분석, 실시간 세포 영상 및 비침습적 질병 진단에 이용될 수 있다. 펩타이드, 단백질 분해효소, 분자영상, 골 관절염, 질병 조기진단
Abstract:
PURPOSE: A method for polymerizing polymer oligonucleotide is provided to easily polymerize and use for treating various diseases. CONSTITUTION: A polymer oligonucleotide having 100-40,000bp of molecular weight is prepared by physically or chemically binding small molecular oligonucleotides. The oligonucleotide is DNA, RNA, siRNA, or antisense oligonucleotide. The small molecular oligonucleotide is siRNA comprising 15-30 nucleotides. A polymer oligonucleotide carrier is obtain by binding biopolymer or synthetic polymer to the large molecular oligonucleotide.
Abstract:
A contrast medium is provided to diagnose autoimmune diseases in early stage by chemically boding a polymer, which is able to be selectively accumulated in a diseased tissue due to high transmissivity of a neovascular membrane of the autoimmune diseased tissue, to a near-infrared fluorochrome. A contrast medium for diagnosing rheumatoid arthritis comprises nanoparticles of a near infrared fluorochrome bonded bile acid-glycol chitosan complex, wherein the near infrared fluorochrome is selected from the group consisting of cyanin, allophycocyanin, fluorescein, tetramethylrhodamine, BODIPY and Alexa. A drug delivery system for treating the rheumatoid arthritis is characterized in that a hydrophobic drug such as methotrexate, cyclosporin A, D-penicillamine gold salt, hydroxychloroquinin and leflunomide is encapsulated into the nanoparticles of the near infrared fluorochrome bonded bile acid-glycol chitosan complex.
Abstract:
A composite is provided to minimize side effect of photo-toxicity of a conventional low molecular weight a photosensitizing agent due to excellent selectivity and accumulation property onto a cancer tissue, thereby being useful as the photosensitizing agent for photodynamic therapy showing low side effect and high therapeutic effect. A biocompatible polymer derivative-photosensitizing agent conjugate for photodynamic therapy is characterized in that the biocompatible polymer derivative is dextran, chitosan, glycol chitosan, poly-L-lysine, poly-aspartic acid, poly(N-2-(hydroxypropyl)methacrylamide), poly(divinyl ether-co-maleic anhydride), poly(styrene-co-maleic anhydride) or poly(ethylene glycol), the photosensitizing agent is phophyrins, chlorins, bacteriochlorins or porphycenes and it is selectively accumulated into a cancer tissue and generates a single anti-oxygen or free radicals by application of laser, wherein the phophyrins, chlorins, bacteriochlorins or porphycenes includes a carboxylic acid, amine, or isothiocyanate functional group.