MINIATURE LOW ANGLE LASER LIGHT SCATTERING DETECTOR
    116.
    发明申请
    MINIATURE LOW ANGLE LASER LIGHT SCATTERING DETECTOR 审中-公开
    微型低角度激光光散射检测器

    公开(公告)号:WO2002077671A2

    公开(公告)日:2002-10-03

    申请号:PCT/US2001/051399

    申请日:2001-10-19

    Inventor: HANEY, Max, A.

    IPC: G02B

    CPC classification number: G01N21/49 G01N30/74 G01N30/02 B01D15/34

    Abstract: A light scattering detector is provided for measuring elastic light scattered at low and right angles from polymer solutions contained in a small flow-through cell. Applications include detection in gel permeation chromatography (GPC). A laser is provided for emitting an incident beam along a centerline that is coaxial with a first window, a test cell, a second window, and a first mirror. The test cell has an test channel through which a test fluid (solution) is directed along the instance beam of the laser, thereby causing the emission of analyte beams, as well as front and back interface scatter beams in addition to the remnants of the laser incident beam. The first mirror has a hole that allows the remains of the incident beam of the laser to pass through, thereby eliminating the errors induced by the laser beam itself. The first mirror can reflect the analyte beams into a first photo-detector. Alternatively, a second mirror can aligned with the first mirror to reflect the analyte beams into the first photo-detector. The test cell can be equipped with a window that is perpendicular to the incident laser beam in order to detect right angle reflection of the beam in the test fluid (solution) that flows through the test channel of the test cell. Lenses can be used to focus the analyte beams into their respective detectors. Masks and screens can be used to eliminate stray light from various sources in order to enhance detection of valid results. Still other embodiments can increase the number of mirrors used to achieve similar results.

    Abstract translation: 提供了一种光散射检测器,用于测量从小流通池中包含的聚合物溶液以低角度和直角散射的弹性光。 应用包括在凝胶渗透色谱(GPC)中的检测。 提供激光器,沿着与第一窗口,测试单元,第二窗口和第一反射镜同轴的中心线发射入射光束。 测试电池具有测试通道,测试流体(溶液)通过该测试通道沿着激光的实例光束引导,从而导致分析物束的发射,以及除了激光残余之外的前和后界面散射光束 入射光束。 第一镜具有允许激光的入射光束的残余物通过的孔,从而消除由激光束本身引起的误差。 第一镜可以将分析物束反射成第一光检测器。 或者,第二反射镜可以与第一反射镜对准以将分析物束反射到第一光检测器中。 测试电池可以配备有垂直于入射激光束的窗口,以便检测流过测试电池的测试通道的测试流体(溶液)中的光束的直角反射。 可以使用透镜将分析物束聚焦到其各自的检测器中。 掩模和屏幕可用于消除各种来源的杂散光,以增强对有效结果的检测。 其他实施例可以增加用于实现类似结果的反射镜的数量。

    PEPTIDES
    119.
    发明申请
    PEPTIDES 审中-公开

    公开(公告)号:WO1992013881A1

    公开(公告)日:1992-08-20

    申请号:PCT/AU1992000051

    申请日:1992-02-12

    CPC classification number: C07K7/06 A61K38/00 C07K7/08 C07K14/46

    Abstract: The first group of peptides of the invention are known as Caerins. These peptides have the formula: W-Gly-Leu-X-Z, wherein W is hydrogen, C1-6 alkyl, C6-10 aryl, C7-16 aralkyl or C1-20 acyl; X is a peptide sequence comprising 20 to 23 amino acid residues; and Z is hydroxy, amino, C1-6 alkylamino, di-(C1-6 alkyl)-amino, C1-18 alkoxy or C7-18 aralkoxy. Generally, Caerins have a molecular weight of between 2300 and 2700. The second group of peptides of the invention are known as Caeridins. These peptides have the formula: W-Gly-Leu-Y-Z, wherein W is hydrogen, C1-6 alkyl, C6-10 aryl, C7-16 aralkyl or C1-20 acyl; Y is a peptide sequence comprising 8 to 13 amino acid residues; and Z is hydroxy, amino, C1-6 alkylamino, di-(C1-6 alkyl)-amino, C1-18 alkoxy or C7-18 aralkoxy. Generally, Caeridins have a molecular weight of between 1100 and 1600. Representative members of both groups of peptides may be isolated from the skin or glands of Litoria splendida and Litoria caerulea. Some of the present peptides have potent physiological activity. For example, one of the Caerins has potent antibiotic activity against a variety of bacteria. Some of the peptides also have anti-viral activity, and may have anti-fungal activity. The peptides may also be used for food preservation.

    Abstract translation: 本发明的第一组肽被称为Caerins。 这些肽具有下式:W-Gly-Leu-X-Z,其中W是氢,C 1-6烷基,C 6-10芳基,C 7-16芳烷基或C 1-20酰基; X是包含20-23个氨基酸残基的肽序列; 并且Z是羟基,氨基,C 1-6烷基氨基,二 - (C 1-6烷基) - 氨基,C 1-18烷氧基或C 7-18芳烷氧基。 通常,Caerins的分子量在2300和2700之间。本发明的第二组肽被称为Caeridins。 这些肽具有下式:W-Gly-Leu-Y-Z,其中W是氢,C 1-6烷基,C 6-10芳基,C 7-16芳烷基或C 1-20酰基; Y是包含8至13个氨基酸残基的肽序列; 并且Z是羟基,氨基,C 1-6烷基氨基,二 - (C 1-6烷基) - 氨基,C 1-18烷氧基或C 7-18芳烷氧基。 一般来说,Caeridins的分子量在1100和1600之间。两组肽的代表性成员可以分离自spl藜和Litoria caerulea的皮肤或腺体。 一些本发明的肽具有强烈的生理活性。 例如,其中一种Caerins对各种细菌具有有效的抗生素活性。 一些肽还具有抗病毒活性,并且可能具有抗真菌活性。 肽也可用于食物保存。

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