Abstract:
본 발명은 양친매성 핵산분자, 이를 포함하는 핵산 복합체 및 이의 약물 전달체로서의 용도에 관한 것이다. 본 발명의 약물 전달체는 약물을 표적 세포 및 표적 조직에 선택적으로 전달할 수 있고 세포독성 문제가 없으며 세포투과 후에는 약물의 효과적인 세포질 방출이 가능하여 암 치료제, 세포기반 약물 스크리닝 방법 등에서 크게 응용될 수 있다.
Abstract:
전극체를 이용한 전기 자극 시스템은, 자극 전류를 전도성 매질에 인가하는 전극체와, 입력 펄스를 이용해 상기 자극 전류를 생성하여 상기 전극체에 입력하는 자극 전류 생성 유닛과, 상기 전극체에서 출력되는 전극 전압에서 전극 오프셋 전압을 분류하여 출력하는 샘플 앤 홀드 유닛을 포함하고, 상기 샘플 앤 홀드 유닛은, 상기 입력 펄스가 인가되면 상기 입력 펄스의 인가 시점에서 출력된 전극 전압 값을 샘플링하고, 샘플링된 전극 전압 값을 자극 주기에서의 전극 오프셋 전압 값으로 고정 출력한다.
Abstract:
A gait phase detection system to detect a gait phase including a stance phase and a swing phase includes: a signal detection electrode to detect a neural signal; and a gait phase detection module to detect the gait phase from the neural signal. The gait phase detection module eliminates a portion, including a stimulus-artifact, among the continuously detected neural signals in a predetermined time unit to divide the neural signal into a plurality of segmented neural signals; extracts a feature vector of each segmented neural signal; and substitutes the extracted feature vector to a probability model of the feature vectors of the neural signal of preset stance and swing phases to determine the gait phase of the corresponding segmented neural signal.
Abstract:
A jig according to the present invention is a jig for molding a nerve conduit, which comprises: a support body connected to the terminal of an injured nerve; and a thin film type sieve electrode body having electrode holes formed in a body and circular electrodes arranged around the electrode holes, wherein the body of the sieve electrode body is buried in the support body that has hollow channels extended to the inside thereof, while the electrode holes are arranged together with the channels. The jig comprises: a plurality of molds that are coupled with the sieve electrode body to envelop the sieve electrode body, and coupled with each other to form a molding space corresponding to the support body; mold caps that are coupled with the molds to close the molding space; arranging pins passing through the electrode holes; and hollow channel tubes that are coupled with the mold caps and extended into the molding space. The channel tubes are brought in contact with the sieve electrode body while the arranging pins are inserted into the channel tubes; and a molten material, which forms the support body through hardening, is injected into the molding space.
Abstract:
A neural tube includes a supporter connected to the end of a damaged nerve, and a sieve electrode body which comprises an electrode hole on a body and a circular electrode wired around the electrode hole. The body of the sieve electrode body is installed inside the supporter, and a hollow channel extended to the inside of the supporter is formed on the supporter. The electrode hole is arranged to be aligned with the channel, which enables a nerve cell grown along the channel from the end of the damaged nerve to contact the circular electrode.
Abstract:
The present invention relates to a recombinant protein for siRNA delivery and a composition comprising the same. The recombinant protein for siRNA delivery according to the present invention can obtain safety of siRNA from external attack such as various lyases, have selective coherence to cancer cells by targeted peptide which targets various cancer cells, and silence target genes by effectively delivering siRNA to cells and biotissues by releasing siRNA to cytoplasm after cell penetration so that the recombinant protein for siRNA delivery can be effectively used as a siRNA medicine, a cell based drug screening composition, and a siRNA carrier for research.
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:
빛의 조사에 의하여 단일항 산소를 발생시키는 유기 광감작제와 효율적인 광감작 작용을 가능하게 하는 무거운 원자가 고밀도로 집적된 코어와, 이 코어를 둘러싸고 있는 계면 활성제 및 물을 포함하는 수계 분산 근적외 광감작제 유기 나노 입자와 그 제조 방법 및 광역학 치료에의 용도가 기재되어 있으며, 상기 제조 방법은, (1) (a) 유기 광작제와 무거운 원자를 포함하는 유기분자 및 계면 활성제를 용매에 용해시켜 균일하게 혼합하고 용매를 제거하는 단계와, (b) 상기 단계 (a)의 생성물에 물을 가하여 나노 입자 수분산액을 제조하는 방법과, (2) (a) 광감작제, 분자 분산제를 유기 용매 내에서 생체 친화성 고분자에 공유결합으로 결합시키고 투석을 통하여 결합되지 않은 분자들을 제거한 다음, 동결 건조하는 단계와, (b) 상기 단계 (a)의 생성물을 음파처리 (sonication)로 물에 분산시키는 단계를 포함하는, 수계 분산 나노 광감작제의 제조 방법을 포함한다.