Optically controlled microfluidic chip
    2.
    发明授权
    Optically controlled microfluidic chip 失效
    光控微流控芯片

    公开(公告)号:US07556621B2

    公开(公告)日:2009-07-07

    申请号:US11156069

    申请日:2005-06-17

    IPC分类号: A61M35/00

    摘要: An optically controlled microfluidic chip is provided for administering a fluid to a neuronal site. The chip is made of at least one unit or pixel, each of which constitutively emits fluid in the dark, and reduces emission of fluid in response to light. The individual pixels are capable of being individually controlled, thereby translating a spatial pattern of incident light into a spatial pattern of neuronal stimulation. Each pixel contains a housing, an aperture in the housing, and a reservoir containing fluid that is connected to the aperture. The aperture is designed to allow continuous emission of fluid from the reservoir through the aperture when the pixel is in the dark. Each pixel also includes an optical control, which reduces the emission of fluid from the reservoir through the aperture in response to light.

    摘要翻译: 提供光学控制的微流体芯片用于向神经元部位施用流体。 芯片由至少一个单元或像素制成,每个单元或像素在黑暗中组成性地发射流体,并且减少响应于光的流体的排放。 各个像素能够被单独控制,从而将入射光的空间图案转换成神经元刺激的空间图案。 每个像素包含壳体,壳体中的孔,以及包含连接到孔的流体的容器。 孔被设计成当像素处于黑暗中时允许通过孔径从储存器连续排出流体。 每个像素还包括光学控制器,其响应于光而减少从储存器通过孔径的流体的排放。

    Nanotube mat with an array of conduits for biological cells
    3.
    发明授权
    Nanotube mat with an array of conduits for biological cells 失效
    具有生物细胞管道阵列的纳米管垫

    公开(公告)号:US07255871B2

    公开(公告)日:2007-08-14

    申请号:US10431334

    申请日:2003-05-06

    摘要: A nanotube mat is provided with an array of conduits to support, direct growth, select or interface one or more biological cells or cell processes. The carbon nanotube mat provides mechanical stability, is biocompatible, will support cell growth, can desirably be derivatized with growth factors, molecules, nutrients, inhibitory factors, ligands, transduction molecules or morphogenic factors, and would allow the formation of conduits to guide cells and cell extensions to be hosted or grown. The conduits could take any size or shape to support, direct growth, select or interface one or more cells or processes. In general the conduits could be channels, discontinuous channels, tapered channels or walls. The nanotube mat could be used to interface biological cells with other cells, tissue or structures that have electrical, mechanical, magnetic means, or optical means. The nanotube mat could also incorporate chemicals, analytes, drugs, lips, carbohydrates, secretory products or the like.

    摘要翻译: 纳米管垫被提供有一系列管道以支持,直接生长,选择或接合一个或多个生物细胞或细胞过程。 碳纳米管垫提供机械稳定性,是生物相容的,将支持细胞生长,可以期望地被生长因子,分子,营养物,抑制因子,配体,转导分子或形态发生因子衍生,并且将允许形成导管以引导细胞和 单元格扩展名被托管或增长。 导管可以采取任何尺寸或形状来支持,直接生长,选择或接合一个或多个细胞或过程。 通常,导管可以是通道,不连续通道,锥形通道或壁。 纳米管垫可用于将生物细胞与具有电,机械,磁性装置或光学装置的其它细胞,组织或结构相接触。 纳米管垫也可以掺入化学品,分析物,药物,嘴唇,碳水化合物,分泌产物等。

    Microfabricated tissue as a substrate for pigment epithelium transplantation
    4.
    发明授权
    Microfabricated tissue as a substrate for pigment epithelium transplantation 失效
    微生物组织作为色素上皮细胞移植的底物

    公开(公告)号:US06939378B2

    公开(公告)日:2005-09-06

    申请号:US09872513

    申请日:2001-06-01

    摘要: Methods and apparatus for modifying membranous tissue, growing cells on modified membranous tissue, and for transplantation of modified tissues and modified tissues with attached cells are provided. In particular, the invention provides methods and apparatus for modifying membranous tissue such as lens capsule tissue and inner limiting membrane tissue, for growing cells such as iris pigment epithelial (IPE) cells and retinal pigment epithelial (RPE) cells on modified membranous tissue, and for modifying membranous tissue and growing cells on biodegradable polymer substrates. A method of modifying membranous tissues comprises depositing micropatterns of biomolecules onto membranous tissue with a contacting surface such as a stamp; other methods include mechanical ablation, photoablation, ion beam ablation, and modification of membranous tissues via the action of proteolytic enzymes.

    摘要翻译: 提供了修饰膜组织,在修饰的膜组织上生长细胞,以及用于移植修饰的组织和经连接的细胞的修饰组织的方法和装置。 特别地,本发明提供了用于在改良的膜组织上生长诸如虹膜色素上皮(IPE)细胞和视网膜色素上皮(RPE)细胞的细胞的膜组织例如晶状体囊组织和内限制膜组织的方法和装置,以及 用于修饰可生物降解的聚合物基质上的膜组织和生长细胞。 修饰膜组织的方法包括用生物分子的微图案沉积在膜组织上,其中接触表面例如印记; 其他方法包括机械消融,光消融,离子束消融,以及通过蛋白水解酶的作用修饰膜组织。

    Interface for making spatially resolved electrical contact to neural cells in a biological neural network
    5.
    发明授权
    Interface for making spatially resolved electrical contact to neural cells in a biological neural network 有权
    用于在生物神经网络中对神经细胞进行空间解析的电接触的界面

    公开(公告)号:US07058455B2

    公开(公告)日:2006-06-06

    申请号:US10742584

    申请日:2003-12-19

    IPC分类号: A61N1/05

    摘要: An interface for selective excitation or sensing of neural cells in a biological neural network is provided. The interface includes a membrane with a number of channels passing through the membrane. Each channel has at least one electrode within it. Neural cells in the biological neural network grow or migrate into the channels, thereby coming into close proximity to the electrodes.Once one or more neural cells have grown or migrated into a channel, a voltage applied to the electrode within the channel selectively excites the neural cell (or cells) in that channel. The excitation of these neural cell(s) will then transmit throughout the neural network (i.e. cells and axons) that is associated with the neural cell(s) stimulated in the channel.

    摘要翻译: 提供了一种生物神经网络中选择性激发或感应神经细胞的界面。 界面包括具有穿过膜的多个通道的膜。 每个通道内至少有一个电极。 生物神经网络中的神经细胞生长或迁移到通道中,从而接近电极。 一旦一个或多个神经细胞已经生长或迁移到通道中,施加到通道内的电极的电压选择性地激发该通道中的神经细胞(或细胞)。 然后,这些神经细胞的激发将通过与通道中刺激的神经细胞相关联的神经网络(即细胞和轴突)传递。