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    • 5. 发明申请
    • SURFACE-ACTIVE COLLAGEN MEMBRANE BY PEPTIDE
    • 表皮活性胶原膜
    • US20140187743A1
    • 2014-07-03
    • US14112929
    • 2011-12-16
    • Chong-Pyoung ChungYoon-Jeong ParkJue-Yeon LeeIn Kyong ShimHyun Jung Park
    • Chong-Pyoung ChungYoon-Jeong ParkJue-Yeon LeeIn Kyong ShimHyun Jung Park
    • C07K14/78C07K14/00
    • C07K14/001A61K38/00A61L27/24A61L27/54A61L27/60A61L2300/252A61L2300/404A61L2300/80A61L2430/02C07K14/4723C07K14/485C07K14/49C07K14/51C07K14/78C07K2319/00C12N15/62
    • The present invention relates to a membrane having bound thereto an antibacterial peptide that binds to collagen, and more particularly to a collagen membrane comprising a fusion peptide of a collagen-binding peptide and an antibacterial peptide, fixed to the collagen surface.The present invention provides a collagen membrane having surface activity by a fusion peptide bound to the surface thereof. When the collagen membrane is transplanted in vivo, the retention time of the fusion peptide in a local region can increase, and the fusion peptide can promote the cell migration, proliferation and differentiation associated with bone tissue regeneration, thereby maximizing the ability to regenerate bone tissue. Thus, the collagen membrane contributes to the development of therapeutic technology for bone induction and regeneration. Also, the fusion peptide may be applied to other types of graft materials made of collagen. In addition, the collagen-binding peptide of the fusion peptide can also be bound to peptides having the effect of regenerating other tissues, and thus can be applied as a biomaterial for regeneration of other tissues such as the skin.
    • 本发明涉及一种与胶原结合的抗菌肽结合的膜,更具体地涉及一种固定在胶原表面上的胶原膜,其包含胶原结合肽和抗菌肽的融合肽。 本发明提供了具有与其表面结合的融合肽的表面活性的胶原膜。 当胶原膜在体内移植时,融合肽在局部区域的停留时间可以增加,并且融合肽可以促进与骨组织再生相关的细胞迁移,增殖和分化,从而最大化再生骨组织的能力 。 因此,胶原膜有助于骨诱导和再生的治疗技术的发展。 此外,融合肽可以应用于由胶原蛋白制成的其他类型的移植材料。 此外,融合肽的胶原结合肽也可以与具有再生其他组织的作用的肽结合,因此可以用作其它组织如皮肤的再生的生物材料。
    • 10. 发明申请
    • METHOD FOR PREPARING 2-PYRROLIDONE USING BIOMASS
    • 使用生物质制备2-吡咯烷酮的方法
    • US20130203131A1
    • 2013-08-08
    • US13876926
    • 2011-09-30
    • Dong Cheol ParkKi Kueon KingHyun Jung ParkSeo Hyoung KimJae Young Oh
    • Dong Cheol ParkKi Kueon KingHyun Jung ParkSeo Hyoung KimJae Young Oh
    • C12P17/10
    • C12P17/10C07D207/26C12N9/88C12P13/005C12P2203/00
    • The present invention relates to a method for preparing 2-pyrrolidone using biomass, comprising: a step (a) of culturing a microorganism which contains glutamate decarboxylase as a whole-cell catalyst in a culture medium containing glutamic acid or glutamate so as to prepare 4-amino butyric acid; a step (b) of filtering the 4-amino butyric acid from the culture medium in order to obtain the 4-amino butyric acid; and a step (c) of converting the 4-amino butyric acid into 2-pyrrolidone. The present invention provides a series of processes for preparing 2-pyrrolidone from glutamic acid or glutamate using biomass. According to the present invention, 4-amino butyric acid is prepared using a microorganism as a whole cell, and preferably, 4-amino butyric acid which has not undergone a complicated refining process such as a crystallization process is directly used to prepare 2-pyrrolidone at a high yield rate in an economically advantageous manner. According to the present invention, 2-pyrrolidone may be mass-produced at a high yield rate and low production costs. The method of the present invention simplifies processes for preparing 2-pyrrolidone, and thus is suitable for mass production at an industrial scale.
    • 本发明涉及使用生物质制备2-吡咯烷酮的方法,包括:(a)在含谷氨酸或谷氨酸的培养基中培养含谷氨酸脱羧酶作为全细胞催化剂的微生物,以制备4 - 氨基丁酸; 从培养基中过滤4-氨基丁酸以获得4-氨基丁酸的步骤(b); 和将4-氨基丁酸转化为2-吡咯烷酮的步骤(c)。 本发明提供了使用生物质从谷氨酸或谷氨酸制备2-吡咯烷酮的一系列方法。 根据本发明,使用微生物作为全细胞制备4-氨基丁酸,优选直接使用未经历复杂精制方法如结晶过程的4-氨基丁酸制备2-吡咯烷酮 以高收益率以经济上有利的方式。 根据本发明,2-吡咯烷酮可以高产率大批量生产,生产成本低。 本发明的方法简化了制备2-吡咯烷酮的方法,因此适用于工业规模的批量生产。