Injectable Microspheres From Unsaturated Functionalized Polyhydric Alcohol Esters
    1.
    发明申请
    Injectable Microspheres From Unsaturated Functionalized Polyhydric Alcohol Esters 审中-公开
    来自不饱和官能化多元醇酯的注射微球

    公开(公告)号:US20070207213A1

    公开(公告)日:2007-09-06

    申请号:US11628650

    申请日:2005-06-16

    申请人: Chih-Chang Chu Da Wu

    发明人: Chih-Chang Chu Da Wu

    IPC分类号: A61K9/50 B01J13/04

    摘要: Injectable drug laden microspheres are obtained from unsaturated functionalized polyhydric alcohol ester of polyester by a method comprising dissolving the unsaturated functionalized ester in a hydrophobic organic solvent, dissolving drug and/or biologically active agent in water, admixing the two solutions to form water-in-oil emulsion, forming an aqueous solution of stabilizer, admixing the water-in-oil emulsion and the stabilizer solution to form water-in-oil-in-water emulsion, and evaporating the organic solvent.

    摘要翻译: 通过将不饱和官能化酯溶解在疏水性有机溶剂中,将药物和/或生物活性剂溶解在水中的方法,由聚酯的不饱和官能化多元醇酯得到可注射药物载体微球体,混合所述两种溶液, 油乳液,形成稳定剂水溶液,将油包水乳液和稳定剂溶液混合以形成水包油包水乳液,并蒸发有机溶剂。

    Unsaturated poly(ester-amide) biomaterials
    4.
    发明授权
    Unsaturated poly(ester-amide) biomaterials 有权
    不饱和聚(酯 - 酰胺)生物材料

    公开(公告)号:US07863406B2

    公开(公告)日:2011-01-04

    申请号:US11587530

    申请日:2005-05-31

    摘要: Biodegradable poly(ester-amides) are synthesized from amino acids, diols and dicarboxylic acids where one or both of the diols and dicarboxylic acids contain unsaturation; e.g., from di-p-nitrophenyl dicarboxylates and p-toluenesulfonic acid salts of bis(alpha-amino acid) disesters of diols where one or both of the dicarboxylate and diol moieties contain unsaturation or from di-p-nitrophenyl dicarboxylates, and p-toluene-sulfonic acid salts of bis(alpha-amino acid) diesters of diols and p-toluenesulfonic acid salt of lysine ester where one or both of the dicarboxylate and diol moieties contain unsaturation. The polymers are useful as biodegradable carriers for drugs of other bioactive agents.

    摘要翻译: 由氨基酸,二醇和二羧酸合成可生物降解的聚(酯 - 酰胺),其中二醇和二羧酸之一或二者均含有不饱和键; 例如二羧酸二酯和二羧酸二酯部分含有不饱和键的双(α-氨基酸)二酯的双对硝基苯基二羧酸酯和对甲苯磺酸盐,或二羧酸二对硝基苯酯, 二元醇的双(α-氨基酸)二酯和赖氨酸酯的对甲苯磺酸盐的甲苯磺酸盐,其中二羧酸酯和二醇部分中的一个或两个都含有不饱和键。 聚合物可用作其他生物活性剂药物的可生物降解载体。

    Hydrogel-forming system with hydrophobic and hydrophilic components
    6.
    发明授权
    Hydrogel-forming system with hydrophobic and hydrophilic components 失效
    具有疏水和亲水组分的水凝胶形成体系

    公开(公告)号:US06709668B2

    公开(公告)日:2004-03-23

    申请号:US10369676

    申请日:2003-02-21

    IPC分类号: C09D400

    摘要: A hydrogel forming system which comprises a hydrophobic macromer with unsaturated group terminated ends and a hydrophilic polymer which is a polysaccharide (e.g., dextran) containing hydroxy groups which are reacted with unsaturated group introducing compound, is convertible by free radical polymerization to form a hydrogel containing a three dimensional crosslinked polymer network containing hydrophobic and hydrophilic components. Agent can be entrapped in the polymer network, e.g., drugs, macromolecules or synthetic or natural polymers, for controlled release therefrom.

    摘要翻译: 包含具有不饱和基团末端的疏水大分子单体和亲水性聚合物的水凝胶形成体系,其是含有与不饱和基团引入化合物反应的含羟基的多糖(例如,葡聚糖),可通过自由基聚合反应形成含有 含有疏水和亲水组分的三维交联聚合物网络。 药剂可以被捕获在聚合物网络中,例如药物,大分子或合成或天然聚合物,用于从其中控制释放。

    Reactive graft polymer with biodegradable polymer backbone and method
for preparing reactive biodegradable polymers
    7.
    发明授权
    Reactive graft polymer with biodegradable polymer backbone and method for preparing reactive biodegradable polymers 失效
    具有可生物降解聚合物骨架的反应性接枝聚合物和制备活性可生物降解聚合物的方法

    公开(公告)号:US5610241A

    公开(公告)日:1997-03-11

    申请号:US646060

    申请日:1996-05-07

    CPC分类号: C08G63/912 C08G63/6852

    摘要: Graft polymers with reactive groups for linking to peptides for use in tissue engineering and to drugs to provide drug delivery systems and useful per se to release amino acids and useful, for example, for wound closure devices, pins, screws, anastomosis rings, and surgical implants, consist essentially of biodegradable homopolymer or copolymer backbone joined at carbon alpha to carbon of backbone carbonyl group, to side chain amino acid pendant group at a carbonyl moiety of said pendant group wherein said side chain contains reactive amino acid group. The graft polymers are prepared by reacting amino acid halide having other reactive groups protected, with biodegradable polymer containing carbanion on carbon alpha to carbon of carbonyl group, and then deprotecting the protected groups. Biodegradable polymer containing carbanion on carbon alpha to carbon of carbonyl group, for use in preparing the graft polymers herein or for otherwise reacting, e.g., for surface crosslinking, attaching nitric oxide derivatives, attaching biochemicals or for grafting hydrophilic or hydrophobic agents to control the hydrophilicity or hydrophobicity, is prepared by reacting biodegradable homopolymer or copolymer containing carbonyl group and carbon alpha to the carbon of the carbonyl group and having H atom on the carbon alpha to group carbonyl carbon, with a base to form carbanion on carbon alpha to carbonyl carbon.

    摘要翻译: 具有用于组合工程中用于连接肽的反应性基团的接枝聚合物和用于提供药物递送系统的药物并且本身可用于释放氨基酸并且可用于例如伤口闭合装置,针,螺钉,吻合环和手术 植入物基本上由在骨架羰基碳碳键连接的可生物降解的均聚物或共聚物主链组成,所述侧链羰基部分的侧链氨基酸侧基包含反应性氨基酸基团。 接枝聚合物的制备是将具有保护的其它反应性基团的氨基酸卤化物与碳上碳负离子的生物可降解聚合物与羰基的碳反应,然后使保护基团脱保护。 用于制备本文的接枝聚合物或以其它方式反应的例如用于表面交联,附着一氧化氮衍生物,附着生物化学物质或用于接枝亲水或疏水剂以控制亲水性的羰基碳碳 - 碳上的碳负离子的可生物降解聚合物 或疏水性,通过将含有羰基和碳α的可生物降解的均聚物或含有羰基的共聚物与羰基碳上具有H原子并且具有碳原子数为羰基碳的碳原子反应而制备,从而在羰基碳碳上形成碳负离子。

    Aminoxyl-containing radical spin labeling in polymers and copolymers
    8.
    发明授权
    Aminoxyl-containing radical spin labeling in polymers and copolymers 失效
    聚合物和共聚物中含有含氨基的自由基自旋标记

    公开(公告)号:US5516881A

    公开(公告)日:1996-05-14

    申请号:US288601

    申请日:1994-08-10

    IPC分类号: C08G63/91 C08G73/10

    CPC分类号: C08G63/912 C08G63/916

    摘要: Aminoxyl-containing radical is provided in polymers and copolymers by replacing a hydroxyl moiety in a carboxyl group at a chain end of a starting material biodegradable polymer or copolymer with imino or oxy linked to aminoxyl-containing radical to form an amide linkage or an oxycarbonyl linkage at the chain end of biocompatible polymers or copolymers to the aminoxyl-containing radical. Preferred starting material polymers and copolymers are prepared from the hydroxy alkyl carboxylic acid monomers glycolic acid and lactic acid. Preferred aminoxyl-containing radical is 2,2,6,6-tetramethylpiperidine-1-oxy. Product polymers are useful for aminoxyl-containing radical treatment of tumors, and to increase the efficiency of chemotherapy and ionizing radiation therapy of tumors and for the reconstruction of injured, diseased, or aged human blood vessels.

    摘要翻译: 通过将起始材料可生物降解的聚合物或共聚物的链端上的羧基中的羟基部分替换为与氨基氧基连接的亚氨基或氧基形成酰胺键或氧羰基键,从而提供含聚酰胺基团 在生物相容的聚合物或共聚物的链端与含氨氧基的基团。 优选的原料聚合物和共聚物由羟基烷基羧酸单体乙醇酸和乳酸制备。 优选的含氨氧基的基团是2,2,6,6-四甲基哌啶-1-氧基。 产品聚合物可用于含氨氧基自由基治疗肿瘤,并提高肿瘤的化学疗法和电离放射治疗的效率,以及重建损伤的,患病的或老年人的血管。

    Injectable Microspheres
    9.
    发明申请
    Injectable Microspheres 有权
    可注射微球

    公开(公告)号:US20110151004A1

    公开(公告)日:2011-06-23

    申请号:US13015193

    申请日:2011-01-27

    IPC分类号: A61K9/14 B32B5/16 C08G63/08

    摘要: Injectable microspheres are obtained from double bond functionalized polyhydric alcohol ester by a method comprising dissolving the double bond functionalized esters in a hydrophobic organic solvent, forming an aqueous solution of stabilizer, forming an oil in water emulsion where the solution of stabilizer constitutes the continuous phase and the solution of ester constitutes the disperse phase and evaporating the organic solvent or from block copolymer of PGCLM and methoxy poly(ethylene glycol).

    摘要翻译: 可注射的微球体是通过将双键官能化的酯溶解在疏水性有机溶剂中,形成稳定剂的水溶液,形成稳定剂溶液形成连续相的水乳液的方法从双键官能化的多元醇酯得到的, 酯溶液构成分散相并蒸发有机溶剂或由PGCLM和甲氧基聚(乙二醇)的嵌段共聚物蒸发。

    Hydrogel forming system comprising PEG derivative precursor
    10.
    发明授权
    Hydrogel forming system comprising PEG derivative precursor 有权
    包含PEG衍生物前体的水凝胶形成体系

    公开(公告)号:US07670616B2

    公开(公告)日:2010-03-02

    申请号:US11060279

    申请日:2005-02-18

    IPC分类号: A61F2/02

    摘要: Variation in precursor ratio and mass of double bond functionalized polyhydric alcohol precursor and polyethylene glycol diacrylate precursor provide a wide range of release rates of drug or other biologically active agent from hydrogel formed therefrom.

    摘要翻译: 双键官能化多元醇前体和聚乙二醇二丙烯酸酯前体的前体比和质量的变化提供药物或其它生物活性剂从其形成的水凝胶的宽范围的释放速率。