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    • 4. 发明申请
    • Three-dimensional fabrication of biocompatible structures in anatomical shapes and dimensions for tissue engineering and organ replacement
    • 用于组织工程和器官置换的解剖学形状和尺寸的生物相容性结构的三维制造
    • US20070218544A1
    • 2007-09-20
    • US11375375
    • 2006-03-14
    • Jackie YingShyi-Herng KanJeremy Hock LohKarl SchumacherTseng-Ming Hsieh
    • Jackie YingShyi-Herng KanJeremy Hock LohKarl SchumacherTseng-Ming Hsieh
    • C12M1/34H01L21/00C12M3/00
    • A61L27/38A61L27/56B33Y80/00C12N5/0068C12N2533/30
    • The present invention relates to methods and apparatuses involving biocompatible structures for tissue engineering and organ replacement and, more specifically, to methods and apparatuses involving biocompatible structures formed by three-dimensional fabrication for tissue engineering and organ replacement. In some embodiments, the biocompatible structures are scaffolds for cells that can be used as tissue engineering templates and/or as artificial organs. The structures may be three-dimensional and can mimic the shapes and dimensions of tissues and/or organs, including the microarchitecture and porosities of the tissues and organs. In some cases, a structure formed by three-dimensional fabrication comprises a wall defining a cavity and a plurality of pores in at least a portion of the wall. The pores may permeate the wall and enable exchange of a component (e.g., a molecule and/or a cell) between a portion interior to the cavity and a portion exterior to the cavity. For instance, pores may allow delivery of molecules, cell migration, and/or generation of connective tissue between the structure and its host environment. Structures of the invention can be implanted into a mammal, or alternatively and/or additionally, can be used ex vivo as bioartificial assist devices.
    • 本发明涉及包括用于组织工程和器官置换的生物相容结构的方法和装置,更具体地涉及涉及通过用于组织工程和器官置换的三维制造形成的生物相容性结构的方法和装置。 在一些实施方案中,生物相容性结构是可用作组织工程模板和/或作为人造器官的细胞的支架。 结构可以是三维的并且可以模拟组织和/或器官的形状和尺寸,包括组织和器官的微结构和孔隙率。 在一些情况下,通过三维制造形成的结构包括在壁的至少一部分中限定空腔和多个孔的壁。 孔可以渗透到壁上并且使得能够在空腔内部的部分和腔外部的部分(例如,分子和/或细胞)之间进行交换。 例如,孔可以允许在结构和其宿主环境之间传递分子,细胞迁移和/或结缔组织的产生。 本发明的结构可以植入哺乳动物,或者另外地和/或另外可以作为生物人造辅助装置离体使用。
    • 6. 发明申请
    • Manipulation of chemical and/or biological species using magnetic field modulators
    • 使用磁场调制器操纵化学和/或生物物种
    • US20070134788A1
    • 2007-06-14
    • US11297797
    • 2005-12-08
    • Karl SchumacherJackie YingJeremy LohShyi Kan
    • Karl SchumacherJackie YingJeremy LohShyi Kan
    • C12N5/06C12M3/00
    • C12N5/0062C12N2535/10
    • The present invention relates to methods and apparatus for manipulating chemical and/or biological species (e.g., cells) and, more specifically, to methods and apparatus for manipulating chemical and/or biological species using magnetic fields. In one embodiment, a method of manipulating cells involves the patterning of cells using a magnetic field modulator, which can modulate the magnetic field created by a magnetic field source. The cells may be magnetically susceptible in some cases; for instance, they may be tagged with magnetic particles. When a fluid containing cells is brought in contact with a surface, and the magnetic field modulator is positioned proximate the surface, the cells may form a pattern proximate the surface by aligning with portions of the modulated magnetic field. The position of the pattern of cells may be at least partially determined by the position of the magnetic field modulator in relation to the surface. Advantageously, in certain embodiments, the magnetic field modulator is not integrally connected to the surface. Thus, patterns of cells can be formed on various types of surfaces and the magnetic field modulator may be repositioned without altering the surface. In one particular embodiment, moving the magnetic field modulator from a first to a second position enables the formation of a second pattern of cells on the surface. This method can allow the formation of patterns comprising multiple cell types on a single surface. The methods and apparatuses of the present invention can be used in a variety of settings. One such setting involves the patterning of multiple cell types proximate a surface, i.e., for studying cell-cell interactions. Another setting involves the formation of three-dimensional cellular structures (e.g., tissues).
    • 本发明涉及用于操纵化学和/或生物物种(例如细胞)的方法和装置,更具体地涉及使用磁场操纵化学和/或生物物种的方法和装置。 在一个实施例中,一种操纵单元的方法涉及使用磁场调制器对单元进行图案化,该磁场调制器可以调制由磁场源产生的磁场。 在某些情况下细胞可能是磁性敏感的; 例如,它们可以被磁性颗粒标记。 当含有细胞的流体与表面接触并且磁场调制器位于表面附近时,细胞可以通过与调制磁场的部分对准而形成靠近表面的图案。 电池图案的位置可以至少部分地由磁场调制器相对于表面的位置决定。 有利地,在某些实施例中,磁场调制器不一体地连接到表面。 因此,可以在各种类型的表面上形成单元的图案,并且可以在不改变表面的情况下重新定位磁场调制器。 在一个特定实施例中,将磁场调制器从第一位置移动到第二位置使得能够在表面上形成第二图案的单元。 该方法可以允许在单个表面上形成包括多个单元格类型的图案。 本发明的方法和装置可以用于多种设置。 一种这样的设置涉及在表面附近形成多种细胞类型,即用于研究细胞 - 细胞相互作用。 另一种设置涉及三维细胞结构(例如,组织)的形成。
    • 7. 发明申请
    • NIR-sensitive nanoparticle
    • NIR敏感纳米粒子
    • US20060099146A1
    • 2006-05-11
    • US10985018
    • 2004-11-10
    • Gan ChowMei TanLei RenJackie Ying
    • Gan ChowMei TanLei RenJackie Ying
    • A61K49/00A61K9/14
    • A61K9/5115A61K41/0028A61K47/6923A61K47/6929B82Y5/00
    • It is provided a Near Infrared Sensitive (NIR-sensitive) nanoparticle complex comprising a NIR-sensitive nanoparticle and surfactant(s) adsorbed on the nanoparticle, wherein the surfactant is at least one surfactant selected from: wherein X=1-9; Y=0-9; n=0-9; Z=1-9; W=0-9; m=0-9; each of R1, R2, R3 and R4, if present, is H, substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted C1-C6 aryl, HS, COOH, NH2 or OH; R5 is COOH, NH2 or OH; with the proviso that n+m is
    • 提供了一种近红外敏感(NIR敏感)纳米颗粒复合物,其包含吸收在纳米颗粒上的NIR敏感纳米颗粒和表面活性剂,其中表面活性剂是选自以下的至少一种表面活性剂:其中X = 1-9; Y = 0-9; n = 0-9; Z = 1-9; W = 0-9; m = 0-9; R 1,R 2,R 3和R 4中的每一个如果存在,是H,取代或 未取代的C 1 -C 6烷基,取代或未取代的C 1 -C 6芳基,HS,COOH, NH 2或OH; R 5是COOH,NH 2或OH; 条件是n + m <10; (b)具有(a)结构的氨基酸,其中X = 1; Y = 2; Z = 1; W = 1; R 1,R 2,R 4和R 4不存在; R 3是NH 2; R 5是COOH; 或(c)肽,其中所述肽包含至少一个氨基酸(b)。 此外,提供了具有负载在表面活性剂上的生物分子例如药物的NIR敏感纳米颗粒复合物。