Fuel deposit testing using burner-based exhaust flow simulation system
    3.
    发明授权
    Fuel deposit testing using burner-based exhaust flow simulation system 有权
    使用燃烧器排气流量模拟系统进行燃料沉积测试

    公开(公告)号:US07597016B2

    公开(公告)日:2009-10-06

    申请号:US11556479

    申请日:2006-11-03

    摘要: A method of using an exhaust flow simulation system to test the effects of exhaust system conditions on various materials. A typical exhaust flow simulator is a burner-based system, in which exhaust from burner combustion is exhausted through an exhaust line. A “test coupon” of the material may be placed at an appropriate location in the flow line, and tested to determine how it is affected by the exhaust resulting from various fuels and additives.

    摘要翻译: 一种使用排气流动模拟系统来测试排气系统条件对各种材料的影响的方法。 典型的排气流模拟器是基于燃烧器的系统,其中来自燃烧器燃烧的排气通过排气管线排出。 材料的“试样”可以放置在流线中的适当位置,并进行测试以确定它是如何受到各种燃料和添加剂产生的排气的影响。

    Keratin-based hydrogel for biomedical applications and method of production
    5.
    发明授权
    Keratin-based hydrogel for biomedical applications and method of production 有权
    用于生物医学应用的角蛋白基水凝胶和生产方法

    公开(公告)号:US06379690B2

    公开(公告)日:2002-04-30

    申请号:US09736957

    申请日:2000-12-12

    IPC分类号: A61F1300

    摘要: A keratin hydrogel which can be used as a wound dressing and cell scaffolding. The keratin hydrogel is formed from clean, washed hair by partially oxidizing a significant percentage of disulfide linkages to form cysteic acid groups, while some disulfide linkages remain intact. The partially oxidized hair is treated with a reducing agent, thereby reducing most of the remaining disulfide linkages to cysteine-thioglycollate disulfide and cysteine groups. A soluble fraction of hair is collected and oxidized, such that the reduced sulfur groups are allowed to reform disulfide linkages, thereby binding the keratin together. The cysteic acid groups remain, providing hydrophilic sites within the hydrogel. A higher degree of partial oxidation results in a greater abundance of hydrophilic cysteic acid groups in the hydrogel.

    摘要翻译: 可用作伤口敷料和细胞脚手架的角蛋白水凝胶。 通过部分氧化显着百分比的二硫键以形成半胱氨酸基团,由干净的洗涤毛发形成角蛋白水凝胶,而一些二硫键保持完整。 用还原剂处理部分氧化的毛发,从而将大部分剩余的二硫键连接到半胱氨酸 - 巯基乙酸酯二硫化物和半胱氨酸基团。 收集毛发的可溶性部分并进行氧化,使得还原的硫基团能够改性二硫键,从而将角蛋白结合在一起。 残留的半胱氨酸基团,在水凝胶内提供亲水部位。 较高程度的部分氧化导致水凝胶中亲水性半胱氨酸基团的丰度较大。

    Non-woven keratin cell scaffold
    9.
    发明授权
    Non-woven keratin cell scaffold 有权
    无纺布角蛋白细胞支架

    公开(公告)号:US06461628B1

    公开(公告)日:2002-10-08

    申请号:US09587157

    申请日:2000-06-05

    IPC分类号: A01N2534

    摘要: A hydratable, highly absorbent keratin solid fiber or powder capable of absorbing a large weight excess of water may be produced by partially oxidizing hair keratin disulfide bonds to sulfonic acid residues and reacting the sulfonic acid residues with a cation. The neutralized suspension can be filtered, washed, and dried, leaving keratin solid which can be shredded into fibers and further ground into powder. Addition of water to the solid produces a hydrogel. The powder or hydrogel may be useful as an absorbent material, as a therapeutic for skin, or as an excipient. The keratin materials can be incorporated into nonwoven films. The hydrogel may be used as biocompatible viscoelastic filler for implant applications. Both the hydrogel and nonwoven materials are also suitable for use as tissue engineering scaffolds.

    摘要翻译: 可以通过将毛发角蛋白二硫键部分氧化成磺酸残基并使磺酸残基与阳离子反应来制备能够吸收大量过量水的可水合的高吸收性角蛋白固体纤维或粉末。 中和的悬浮液可以过滤,洗涤和干燥,留下角蛋白固体,将其切成纤维并进一步研磨成粉末。 向固体中加入水产生水凝胶。 粉末或水凝胶可用作吸收材料,作为皮肤的治疗剂或赋形剂。 角蛋白材料可以并入无纺膜中。 水凝胶可用作植入物应用的生物相容性粘弹性填料。 水凝胶和非织造材料都适用于组织工程支架。

    Absorbent keratin wound dressing
    10.
    发明授权
    Absorbent keratin wound dressing 有权
    吸收性角蛋白伤口敷料

    公开(公告)号:US06270793B1

    公开(公告)日:2001-08-07

    申请号:US09528893

    申请日:2000-03-20

    IPC分类号: A61F1300

    摘要: A hydratable, highly absorbent keratin solid fiber or powder capable of absorbing a large weight excess of water may be produced by partially oxidizing hair keratin disulfide bonds to sulfonic acid residues and reacting the sulfonic acid residues with a cation. The neutralized suspension can be filtered, washed, and dried, leaving keratin solid which can be shredded into fibers and further ground into powder. Addition of water to the solid produces a hydrogel. The powder or hydrogel may be useful as an absorbent material, as a therapeutic for skin, or as an excipient. The keratin materials can be incorporated into nonwoven films. Another use for the hydrogel is as a biocompatible viscoelastic filler for implant applications.

    摘要翻译: 可以通过将毛发角蛋白二硫键部分氧化成磺酸残基并使磺酸残基与阳离子反应来制备能够吸收大量过量水分的可水合的高吸收性角蛋白固体纤维或粉末。 中和的悬浮液可以过滤,洗涤和干燥,留下角蛋白固体,将其切成纤维并进一步研磨成粉末。 向固体中加入水产生水凝胶。 粉末或水凝胶可用作吸收材料,作为皮肤的治疗剂或赋形剂。 角蛋白材料可以并入无纺膜中。 水凝胶的另一用途是用于植入物应用的生物相容性粘弹性填料。