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    • 67. 发明申请
    • LANTIBIOTIC MUTANTS AND CHIMERAS OF ENHANCED STABILITY AND ACTIVITY
    • 生态脆弱性和增强稳定性和活性的CHIMERAS
    • WO1997011713A1
    • 1997-04-03
    • PCT/US1996015160
    • 1996-09-30
    • THE UNIVERSITY OF MARYLAND COLLEGE PARK
    • THE UNIVERSITY OF MARYLAND COLLEGE PARKHANSEN, J., Norman
    • A61K35/74
    • A21D2/267A23L3/3571A61K38/00C07K14/315C07K14/32C07K2319/00
    • Lantibiotics, such as nisin and subtilin, are peptides that are substantially modified post-translationally, such as by dehydration of serines and threonines and by formation of thioether crosslinkages. Lantibiotics are synthesized with a leader region that directs proper processing; this leader is specific both for the synthesizing organism and for the mature sequence. Chimeric lantibiotics were synthesized that contained the subtilin leader region and either a subtilin-nisin fusion or a nisin-subtilin fusion for the mature region. The nisin-subtilin chimera was efficiently processed into a functional lantibiotic, but the subtilin-nisin fusion produced a heterogeneous mixture of products, none of which had the expected properties of a correctly process polypeptide. This mixture contained a minor component with a specific activity exceeding that of nisin itself.
    • 羊抗生素如乳链菌肽和子链霉素是在翻译后基本上修饰的肽,例如通过丝氨酸和苏氨酸的脱水以及硫醚交联的形成。 羊抗生素与引导适当处理的引导区合成; 这个领导者对于合成生物体和成熟序列都是特异的。 合成嵌合羊毛硫抗生素,其含有子带蛋白前导区和成熟区的子生物肽 - 乳链菌肽融合或乳链菌肽 - 子素融合。 乳链菌肽 - 子胶质嵌合体被有效地加工成功能性的羊毛硫抗生素,但是子链 - 乳链菌肽融合产生了产物的不均匀混合物,其中没有一个具有正确过程多肽的预期性质。 该混合物含有特定活性超过乳链菌肽本身的次要成分。
    • 68. 发明申请
    • METHOD AND APPARATUS IMPARTING VIBRATIONS TO BONE
    • 方法和装置将骨折植入骨骼
    • WO1995006398A1
    • 1995-03-02
    • PCT/US1994009409
    • 1994-08-25
    • AUDIODONTICS, INC.THE UNIVERSITY OF MARYLAND AT BALTIMORE
    • AUDIODONTICS, INC.THE UNIVERSITY OF MARYLAND AT BALTIMOREMERSKY, Barry, L.THOMPSON, Van, P.
    • H04R25/00
    • H04R25/606
    • Vibrations for application to hard living tissue, such as bones, teeth, etc., are derived from a magnetorestrictive element (20) disposed in a varying electromagnetic field to create dimensional variations in the magnetorestrictive element (20). In an audiodontic vibrator for the hearing impaired, a magnetorestrictive rod (20) is disposed in the hollow core of an electromagnetic coil (17) through which current flows in response to acoustic signals. The resulting electromagnetic field in the core passes through the magnetorestrictive rod (20), causing small dimensional variations in the rod (20) corresponding to amplitude variations in the field. An actuator (31) in contact with the rod extends from the housing and transmits the dimensional changes as low amplitude vibrations to the hard tissue via a bracket (41) mounted on a tooth (40) by an adhesive resin-based cement. The bracket (41) has a receiving channel (43) contoured to slidably and removably receive the distal end (37) of the actuator (31) in close fitting frictional relation.
    • 用于施加到硬的生物体组织(例如骨骼,牙齿等)上的振动源自设置在变化的电磁场中的磁致伸缩元件(20),以产生磁致伸缩元件(20)中的尺寸变化。 在用于听力受损的听觉振动器中,磁致伸缩杆(20)设置在电磁线圈(17)的空心芯中,电流响应于声信号而流过。 芯中产生的电磁场通过磁致伸缩杆(20),导致对应于场中振幅变化的杆(20)的小的尺寸变化。 与杆接触的致动器(31)从壳体延伸,并且通过基于粘合树脂的水泥通过安装在齿(40)上的支架(41)将尺寸变化作为低振幅振动传递到硬组织。 支架(41)具有接合通道(43),其形状可滑动地和可拆卸地以紧密的摩擦关系接收致动器(31)的远端(37)。