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    • 3. 发明授权
    • Surfactants that mimic the glycocalyx
    • 模仿糖萼的表面活性剂
    • US06759388B1
    • 2004-07-06
    • US09302195
    • 1999-04-29
    • Roger E. MarchantTianhong ZhangYongxing QiuMark A. Ruegsegger
    • Roger E. MarchantTianhong ZhangYongxing QiuMark A. Ruegsegger
    • B32B2700
    • C07K7/06A61L27/34A61L31/10A61L33/0017A61L33/08A61L33/128C07K5/0817C07K5/1019C08B37/0021C08F8/00C08F26/02C08F16/06
    • Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to said backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. The hydrophobic side chains comprise an alkyl group comprising from 2 to 18 methylene groups. The alkyl groups are linked to the polymeric backbone through ester linkages, secondary amine linkages, or, preferably, amide linkages. The hydrophilic side chain is selected from the group consisting of: a neutral oligosaccharide, which, preferably, has weight average molecular weight of less than 7000; a charged oligosaccharide, preferably a negatively charged oligosaccharide having a weight average molecular weight of less than 10,000; an oligopeptide of from about 3 to about 30 amino acid residues, said oligopeptide having an amino acid sequence which interacts with protein receptors on the surface of cells; and combinations thereof. Methods of making the surfactant polymers and using the surfactant polymers to alter the surface properties of a biomaterial are also provided.
    • 提供了梳状,用于改变生物材料表面性质的表面活性剂聚合物。 这种表面活性剂聚合物包括具有用于与侧链偶联的官能团的重复单体单元的聚合物主链,经由官能团连接到所述主链的多个疏水侧链,以及通过官能团连接至所述骨架的多个亲水侧链 。 疏水侧链包括含有2至18个亚甲基的烷基。 烷基通过酯键,仲胺键或优选酰胺键与聚合物主链相连。 亲水侧链选自:中性寡糖,其优选具有小于7000的重均分子量; 带电荷的寡糖,优选具有小于10,000的重均分子量的带负电荷的寡糖; 所述寡肽具有约3至约30个氨基酸残基的寡肽,所述寡肽具有与细胞表面上的蛋白受体相互作用的氨基酸序列; 及其组合。 还提供了使表面活性剂聚合物和使用表面活性剂聚合物改变生物材料的表面性质的方法。
    • 4. 发明授权
    • Methods of making and using surfactant polymers
    • 制造和使用表面活性剂聚合物的方法
    • US07276474B2
    • 2007-10-02
    • US10823218
    • 2004-04-13
    • Roger E. MarchantTianhong ZhangYongxing QiuMark A. Ruegsegger
    • Roger E. MarchantTianhong ZhangYongxing QiuMark A. Ruegsegger
    • A61K38/16
    • C07K7/06A61L27/34A61L31/10A61L33/0017A61L33/08A61L33/128C07K5/0817C07K5/1019C08B37/0021C08F8/00C08F26/02C08F16/06
    • Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to said backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. The hydrophobic side chains comprise an alkyl group comprising from 2 to 18 methylene groups. The alkyl groups are linked to the polymeric backbone through ester linkages, secondary amine linkages, or, preferably, amide linkages. The hydrophilic side chain is selected from the group consisting of: a neutral oligosaccharide, which, preferably, has weight average molecular weight of less than 7000; a charged oligosaccharide, preferably a negatively charged oligosaccharide having a weight average molecular weight of less than 10,000; an oligopeptide of from about 3 to about 30 amino acid residues, said oligopeptide having an amino acid sequence which interacts with protein receptors on the surface of cells; and combinations thereof. Methods of making the surfactant polymers and using the surfactant polymers to alter the surface properties of a biomaterial are also provided.
    • 提供了梳状,用于改变生物材料表面性质的表面活性剂聚合物。 这种表面活性剂聚合物包括具有用于与侧链偶联的官能团的重复单体单元的聚合物主链,经由官能团连接到所述主链的多个疏水侧链,以及通过官能团连接至所述骨架的多个亲水侧链 。 疏水侧链包括含有2至18个亚甲基的烷基。 烷基通过酯键,仲胺键或优选酰胺键与聚合物主链相连。 亲水侧链选自:中性寡糖,其优选具有小于7000的重均分子量; 带电荷的寡糖,优选具有小于10,000的重均分子量的带负电荷的寡糖; 所述寡肽具有约3至约30个氨基酸残基的寡肽,所述寡肽具有与细胞表面上的蛋白受体相互作用的氨基酸序列; 及其组合。 还提供了使表面活性剂聚合物和使用表面活性剂聚合物改变生物材料的表面性质的方法。
    • 5. 发明申请
    • Methods of making and using surfactant polymers
    • 制造和使用表面活性剂聚合物的方法
    • US20050008603A1
    • 2005-01-13
    • US10823218
    • 2004-04-13
    • Roger MarchantTianhong ZhangYongxing QiuMark Ruegsegger
    • Roger MarchantTianhong ZhangYongxing QiuMark Ruegsegger
    • A61L27/34A61L31/10A61L33/00A61L33/08A61L33/12C07K5/09C07K5/10C07K7/06C08B37/02C08F8/00A61K7/06A61K7/11C08G63/48C08G63/91
    • C07K7/06A61L27/34A61L31/10A61L33/0017A61L33/08A61L33/128C07K5/0817C07K5/1019C08B37/0021C08F8/00C08F26/02C08F16/06
    • Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to said backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. The hydrophobic side chains comprise an alkyl group comprising from 2 to 18 methylene groups. The alkyl groups are linked to the polymeric backbone through ester linkages, secondary amine linkages, or, preferably, amide linkages. The hydrophilic side chain is selected from the group consisting of: a neutral oligosaccharide, which, preferably, has weight average molecular weight of less than 7000; a charged oligosaccharide, preferably a negatively charged oligosaccharide having a weight average molecular weight of less than 10,000; an oligopeptide of from about 3 to about 30 amino acid residues, said oligopeptide having an amino acid sequence which interacts with protein receptors on the surface of cells; and combinations thereof. Methods of making the surfactant polymers and using the surfactant polymers to alter the surface properties of a biomaterial are also provided.
    • 提供了梳状,用于改变生物材料表面性质的表面活性剂聚合物。 这种表面活性剂聚合物包括具有用于与侧链偶联的官能团的重复单体单元的聚合物主链,经由官能团连接到所述主链的多个疏水侧链,以及通过官能团连接至所述骨架的多个亲水侧链 。 疏水侧链包括含有2至18个亚甲基的烷基。 烷基通过酯键,仲胺键或优选酰胺键与聚合物主链相连。 亲水侧链选自:中性寡糖,其优选具有小于7000的重均分子量; 带电荷的寡糖,优选具有小于10,000的重均分子量的带负电荷的寡糖; 所述寡肽具有约3至约30个氨基酸残基的寡肽,所述寡肽具有与细胞表面上的蛋白受体相互作用的氨基酸序列; 及其组合。 还提供了使表面活性剂聚合物和使用表面活性剂聚合物改变生物材料的表面性质的方法。
    • 7. 发明授权
    • Process for forming sharp silicon structures
    • 形成尖锐硅结构的工艺
    • US07078249B2
    • 2006-07-18
    • US11074187
    • 2005-03-07
    • Tianhong Zhang
    • Tianhong Zhang
    • H01L21/00
    • H01J9/025H01J31/127H01J2209/0226
    • A method of forming a sharp silicon structure, such as a silicon field emitter, includes oxidizing the silicon structure to form an oxide layer thereon, then removing the oxide layer. Oxidizing may occur at a low temperature and form a relatively thin (e.g., about 20 Å to about 40 Å) oxide layer on the silicon field emitter. The oxide layer may be removed by etching. A silicon field emitter that has been fabricated in accordance with the method is substantially free of crystalline defects and may include an emitter tip having a diameter as small as about 40 Å to about 20 Å or less.
    • 形成诸如硅场发射体的尖锐硅结构的方法包括氧化硅结构以在其上形成氧化层,然后除去氧化物层。 氧化可以在低温下发生,并在硅场发射体上形成较薄(例如,大约至大约)的氧化物层。 可以通过蚀刻去除氧化物层。 已经根据该方法制造的硅场发射器基本上没有晶体缺陷,并且可以包括直径为大约至大约等于或者小于等于20埃的发射极尖端。
    • 10. 发明授权
    • Low temperature process for sharpening tapered silicon structures
    • 用于磨削锥形硅结构的低温工艺
    • US6165808A
    • 2000-12-26
    • US166864
    • 1998-10-06
    • Tianhong Zhang
    • Tianhong Zhang
    • H01J9/02H01L21/00
    • H01J9/025H01J31/127H01J2209/0226
    • A method of sharpening a tapered or pointed silicon structure, such as a silicon field emitter. The method includes oxidizing the silicon field emitter to form an oxide layer thereon and removing the oxide layer. Oxidizing occurs at a low temperature and forms a relatively thin (e.g., about 20 .ANG. to about 40 .ANG.) oxide layer on the silicon field emitter. The oxide layer may be removed by etching. The method may be employed to sharpen existing silicon structures or in fabricating tapered or pointed silicon structures. A silicon field emitter that has been sharpened or fabricated in accordance with the method is substantially free of crystalline defects and includes an emitter tip having a diameter as small as about 40 .ANG. to about 20 .ANG. or less.
    • 锐化锥形或尖锐硅结构的方法,例如硅场发射器。 该方法包括氧化硅场发射体以在其上形成氧化物层并去除氧化物层。 在低温下发生氧化,并在硅场发射体上形成较薄的(例如,约20安格姆至约40纳米)的氧化物层。 可以通过蚀刻去除氧化物层。 该方法可用于锐化现有的硅结构或制造锥形或尖晶硅结构。 已经根据该方法被削尖或制造的硅场发射器基本上没有晶体缺陷,并且包括直径小至约40至约20Am或更小的发射极尖端。