Abstract:
PURPOSE: Aqueous-dispersed chemical-luminescent nanoparticles, a producing method thereof, and a use thereof are provided to accurately and extensively diagnose active oxygen related disease by directly imaging hydrogen peroxide. CONSTITUTION: Aqueous-dispersed chemical-luminescent nanoparticles contain the following: 0.01~3wt% of core containing a hydrophobic chemical-luminescent substance; 0.5~30wt% of surfactant surrounding the core; and 67~99.49wt% water. The luminescent wavelength of the hydrophobic chemical-luminescent substance is 650~900nm. The hydrophobic chemical-luminescent substance is formed with a peroxyoxalate derivative and a fluorescent material. The surfactant is poloxamer.
Abstract:
PURPOSE: Porous micro/nanoparticles are provided to generate carbon dioxide gas in hydrolysis and to enable use as a contrast agent by holding carbon dioxide even if gas is not added in contrast. CONSTITUTION: Porous micro/nanoparticles are represented by chemical formula 1. In chemical formula 1, a, b, c, and d are 0-1; a+b+c+d = 1; n is an integer of 1-1000; A is a repeating unit represented by chemical formula 2; B is a repeating unit represented by chemical formula 3; C is a repeating unit represented by chemical formula 4; and D is a repeating unit represented by chemical formula 5. In chemical formulae 2-5, R and R' are C1-10 alkyl group or cholesteryl group; e, f, h, i, j, m, o, p, r, s, t, w and x are 0 or 1; g, k, l, q, u, v, y and z are an integer of 1-10; and X is -CH(CH3)- or -CH2-.
Abstract translation:目的:提供多孔微/纳米颗粒水解产生二氧化碳气体,即使不添加气体,也可通过保持二氧化碳作为造影剂。 构成:多孔微纳米颗粒由化学式1表示。在化学式1中,a,b,c和d为0-1; a + b + c + d = 1; n为1-1000的整数; A是由化学式2表示的重复单元; B是由化学式3表示的重复单元; C是由化学式4表示的重复单元; D是由化学式5表示的重复单元。在化学式2-5中,R和R'为C 1-10烷基或胆固醇基; e,f,h,i,j,m,o,p,r,s,t,w和x分别为0或1; g,k,l,q,u,v,y和z为1-10的整数; 并且X是-CH(CH 3) - 或-CH 2 - 。
Abstract:
PURPOSE: A contrast medium for cancer diagnosis containing amphiphilic hyaluronic acid complex nanoparticle is provided to form nano self-aggregates and easily accumulate in cancer tisse. CONSTITUTION: A contrast medium for cancer diagnosis containing amphiphilic hyaluronic acid complex nanoparticle is prepared by binding near infrared ray fluorescence to amphiphilic hyaluronic acid. The near infrared ray fluorescence is cyanine, fluorescein, tetramethylrhodamine, BODIPY, or Alexa. The contrast medium for cancer diagnosis further contains radioactive isotope, quantum dot, or MRI contrast medium.
Abstract:
PURPOSE: Provided is a chitosan composite containing a hydrophobic group, which can encapsulate various hydrophobic pharmaceuticals and therapeutic proteins to give excellent biocompatibility and biodegradability, and thus is useful for pharmaceutical carrier. CONSTITUTION: The chitosan composite containing a hydrophobic group forms a nanosized self-aggregate in aqueous solution. Particularly, an amino group of chitosan is coupled with a carboxyl group of hydrophobic bile acid to form a nanosized self-aggregate. The chitosan is selected from the group consisting of water soluble glycol chitosan, chitosan oligomer and 50%-acetylated chitosan. The hydrophobic bile acid is selected from the group consisting of cholic acid, chenodeoxycholic acid, deoxycholic acid, lithocholic acid, 7-oxo-lithocholic acid and 5-beta-cholanic acid.
Abstract:
PURPOSE: A process of preparing a fat emulsion using oils having higher specific gravity than water as a fat emulsion base material and amphoteric surfactants as an emulsifier is provided. The fat emulsion exhibits excellent expression efficiency in adhesive cell lines as well as in the presence of serum as compared to conventional liposome or squalane-based fat emulsion formulation and thus permits easy in-vitro assay of gene expression efficiency. CONSTITUTION: A fat emulsion comprises: 2 to 30% by weight of oil mixtures comprising iodized oil and one or more glyceride-based oils such as squalene or squalane as a fat emulsion base; 0.01 to 40% by weight of one or more amphoteric surfactants; 0.01 to 10% by weight of hydrophilic polymers, phospholipid combined with hydrophilic polymers or polymerizable phospholipid; 0.01 to 10% by weight of glycerol, soluble peptide or soluble protein; and the balance comprising water. The oil mixtures contain 40% by weight of iodized oil selected from the group consisting of iodized poppy seed oil.
Abstract:
본 발명은 여러 가지 물질의 가용화를 위한 새로운 조성물; 상기 조성물의 액상 제형 및 분말 제형; 및 상기 조성물과 제형의 제조 방법에 관한 것으로, 보다 상세하게는 상기 조성물은 1종 이상의 모노글리세라이드 (monoglyceride)계 화합물 9∼90 중량, 1종 이상의 유화제 0.01∼90 중량, 1종 이상의 난용성 물질 0∼50 중량및 유기 용매 0∼90.9 중량로 이루어지며, 본 발명에 의한 제형은 손으로 흔들어 주는 등의 최소한의 기계적 도움에 의해 입자가 쉽게 분산되어 작고 균질한 입자를 형성하므로 부가적인 처리 과정에 따른 산화 및 변성의 문제가 일어나지 않으며 보관시 상분리가 일어나지 않아 약물 전달 시스템에 유용하게 이용할 수 있다.
Abstract:
PURPOSE: A microsphere is provided to enhance the absorption efficiency in the small intestines on oral medication by modifying its surface using the Cholera Toxin B(CTB). CONSTITUTION: A microsphere is formed by: combining the CTB(Cholera Toxin B) to a microsphere containing more than one kinds of physiological activating substances in its inside or on its surface through a polyethylene glycol linker(PEG) having 3000-4000 of molecular weight.