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    • 11. 发明申请
    • Interpenetrating polymer network hydrogel contact lenses
    • 互穿聚合物网络水凝胶隐形眼镜
    • US20070126982A1
    • 2007-06-07
    • US11636114
    • 2006-12-07
    • David MyungJaan NoolandiChristopher TaCurtis Frank
    • David MyungJaan NoolandiChristopher TaCurtis Frank
    • G02C7/04
    • G02B1/043C08L51/08
    • The present invention provides interpenetrating polymer network hydrogels that have high oxygen permeability, strength, water content, and resistance to protein adsorption. The hydrogels include two interpenetrating polymer networks. The first polymer network is based on a hydrophilic telechelic macromonomer. The second polymer network is based on a hydrophilic monomer. The hydrophilic monomer is polymerized and cross-linked to form the second polymer network in the presence of the first polymer network. The telechelic macromonomer preferably has a molecular weight of between about 575 Da and about 20,000 Da. Mixtures of molecular weights may also be used. In a preferred embodiment, the hydrophilic telechelic macromonomer is PEG-diacrylate or PEG-dimethacrylate and the hydrophilic monomer is an acrylic-based monomer. The material is designed to serve as a contact lens.
    • 本发明提供了具有高透氧性,强度,含水量和耐蛋白质吸附性的互穿聚合物网状水凝胶。 水凝胶包括两个互穿聚合物网络。 第一个聚合物网络是基于亲水的遥爪大分子单体。 第二聚合物网络基于亲水性单体。 在第一聚合物网络的存在下,亲水单体聚合并交联以形成第二聚合物网络。 遥爪大分子单体的分子量优选为约575Da至约20,000Da。 也可以使用分子量的混合物。 在优选的实施方案中,亲水遥爪大分子单体是PEG-二丙烯酸酯或PEG-二甲基丙烯酸酯,亲水性单体是丙烯酸类单体。 该材料被设计成用作隐形眼镜。
    • 12. 发明申请
    • Artificial cornea
    • 人造角膜
    • US20060287721A1
    • 2006-12-21
    • US11409218
    • 2006-04-20
    • David MyungChristopher TaNabeel FarooquiCurtis FrankWon-Gun KohJungmin KoJaan NoolandiMichael Carrasco
    • David MyungChristopher TaNabeel FarooquiCurtis FrankWon-Gun KohJungmin KoJaan NoolandiMichael Carrasco
    • A61F2/14
    • A61F2/142A61F2/15A61K35/12
    • The present invention provides an artificial corneal implant having an optically clear central core and a porous, hydrophilic, biocompatible skirt peripheral to the central core. In one embodiment, the central core is made of an interpenetrating double network hydrogel and the skirt is made of poly(2-hydroxyethyl acrylate) (PHEA). In another embodiment, both the central core and the skirt are made of interpenetrating double network hydrogels. The artificial corneal implant may also have an interdiffusion zone in which the skirt component is interpenetrated with the core component, or vice versa. In a preferred embodiment, biomolecules are linked to the skirt, central core or both. These biomolecules may be any type of biomolecule, but are preferably biomolecules that support epithelial and/or fibroblast cell survival and growth. Preferably, the biomolecules are linked in a spatially selective manner. The present invention also provides a method of making an artificial corneal implant using photolithography.
    • 本发明提供了一种人造角膜植入物,其具有光学透明的中心纤芯和围绕中心纤芯的多孔,亲水的,生物相容的裙部。 在一个实施方案中,中心芯由互穿双网络水凝胶制成,裙部由聚(丙烯酸2-羟乙酯)(PHEA)制成。 在另一个实施例中,中心芯和裙部均由互穿双网络水凝胶制成。 人造角膜植入物也可以具有相互扩散区​​域,其中裙部组件与芯部件互穿,反之亦然。 在优选的实施方案中,生物分子连接到裙部,中心芯或两者。 这些生物分子可以是任何类型的生物分子,但优选支持上皮和/或成纤维细胞存活和生长的生物分子。 优选地,生物分子以空间选择性方式连接。 本发明还提供了使用光刻法制造人造角膜植入物的方法。
    • 16. 发明授权
    • Imager for DNA sequencer
    • 成像器DNA测序仪
    • US06800438B2
    • 2004-10-05
    • US09750560
    • 2000-12-28
    • Jaan NoolandiRobert A. StreetNeville Connell
    • Jaan NoolandiRobert A. StreetNeville Connell
    • C12Q168
    • G01N15/1425G01N15/1456G01N27/44721G01N2015/149
    • An improved method for the sequencing of DNA fragments is provided. The method includes using a known process for DNA fragment separation, such as capillary electrophoresis, and imaging the resultant gel plate with a full-width array scanner or a two-dimensional amorphous silicon image sensor array. The DNA sample is placed within a well of the separation apparatus, such as a capillary tube or plurality thereof. The separation apparatus is then placed in a buffer. An electric field is then applied, forming a bias between the ends along which the sample is separated. Once separated, the large area detector scans the entire gel plate and resultant image data is provided. By way of the improved method, the entire gel plate can be scanned at the same time and repeatedly, resulting in greater accuracy and a shorter time to sequence.
    • 提供了一种改进的DNA片段测序方法。 该方法包括使用用于DNA片段分离的已知方法,例如毛细管电泳,并用全宽阵列扫描仪或二维非晶硅图像传感器阵列对所得凝胶板进行成像。 将DNA样品置于分离装置的孔内,例如毛细管或其多个孔。 然后将分离装置放在缓冲液中。 然后施加电场,在样品分离的端部之间形成偏压。 一旦分离,大面积检测器扫描整个凝胶板,并提供合成的图像数据。 通过改进的方法,可以同时和重复地扫描整个凝胶板,导致更高的精度和更短的顺序时间。
    • 20. 发明授权
    • Preparation of micromultichromal spheres
    • 微复合球的制备
    • US07172712B2
    • 2007-02-06
    • US10249483
    • 2003-04-14
    • Peter M. KazmaierBarkev KeoshkerianGeorge LiebermannNaveen ChopraHadi K. MahabadiJaan NoolandiFrancisco E. Torres
    • Peter M. KazmaierBarkev KeoshkerianGeorge LiebermannNaveen ChopraHadi K. MahabadiJaan NoolandiFrancisco E. Torres
    • B29D11/00G02B26/00
    • G02B26/026B01J13/04B01J13/08B01J13/16Y10T428/2991
    • A method of making a multichromal sphere includes the steps of preparing a composition of at least (1) a matrix material and (2) at least two sets of particles, each of the sets of particles having a color different from at least one of another of the sets of particles and a segregation (e.g., an electrical or magnetic) property different from at least one of another of the sets of particles, encapsulating the composition within a shell to form an encapsulated sphere, immobilizing the encapsulated sphere in a manner to restrict at least rotation of the encapsulated sphere, subjecting the immobilized encapsulated sphere to an external field associated with the segregation property different among the sets of particles, under conditions in which the sets of particles are able to migrate within the matrix material, thereby producing color segregation in the immobilized encapsulated sphere, and solidifying the matrix material while substantially maintaining the color segregation. In the multichromal spheres, each of the sets of particles is segregated within a separate segment of the solidified matrix material of the core on the basis of the different segregation property.
    • 制备多重色球的方法包括以下步骤:制备至少(1)基质材料的组合物和(2)至少两组颗粒,每组颗粒具有不同于其它颗粒中的至少一种的颜色 的颗粒组以及不同于另一组颗粒的分离(例如,电或磁)性质,将组合物包封在壳体内以形成封装的球体,将封装的球体以 限制封装球体的至少旋转,使固定的包封球体在与该组颗粒之间不同的分离特性相关联的外部场中,在该组颗粒能够在基体材料内迁移的条件下,由此产生颜色 在固定化的包封球体中分离,并固化基质材料,同时基本上保持颜色偏析。 在多重色粉球中,基于不同的分离性质,将这些颗粒组中的每一组分离在核心的固化基质材料的单独部分内。