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    • 43. 发明授权
    • Viral fibers
    • 病毒纤维
    • US07332321B2
    • 2008-02-19
    • US10965665
    • 2004-10-15
    • Angela M. BelcherSeung-Wuk Lee
    • Angela M. BelcherSeung-Wuk Lee
    • C12N7/01D01F8/18D02G3/04
    • C12Q1/70A61K35/76A61K47/58A61K47/62B82Y5/00C12N7/00C12N2795/14111C12N2795/14122D01D5/0007D01D5/0053D01F1/10D01F9/00Y10T428/2927Y10T442/2525
    • Long rod shaped M13 viruses were used to fabricate one dimensional (1D) micro- and nanosized diameter fibers by mimic the spinning process of the silk spider. Liquid crystalline virus suspensions were extruded through the micrometer diameter capillary tubes in cross-linking solution (glutaraldehyde). Resulting fibers were tens of micrometers in diameter depending on the inner diameter of the capillary tip. AFM image verified that molecular long axis of the virus fibers were parallel to the fiber long axis. Although aqueous M13 virus suspension could not be spun by electrospinning, M13 viruses suspended in 1,1,1,3,3,3-hexafluoro-2-propanol were spun into fibers. After blending with highly water soluble polymer, polyvinyl 2-pyrolidone (PVP), M13 viruses was spun into continuous uniform virus blended PVP (virus-PVP) fibers. Resulting virus-PVP electrospun fibers showed intact infecting ability to bacterial hosts after suspending in the buffer solution.
    • 长棒状M13病毒用于通过模拟丝蜘蛛的纺丝过程制造一维(1D)微米和纳米尺寸的纤维。 将液晶病毒悬浮液通过交联溶液(戊二醛)中的微米直径毛细管挤出。 所得纤维的直径为几十微米,取决于毛细管尖端的内径。 AFM图像验证了病毒纤维的分子长轴平行于纤维长轴。 虽然M13病毒悬浮液不能通过静电纺丝而旋转,但悬浮在1,1,1,3,3,3-六氟-2-丙醇中的M13病毒被纺成纤维。 在与高度水溶性聚合物共混后,将聚乙烯吡咯烷酮(PVP),M13病毒纺丝成连续均匀的病毒混合PVP(病毒 - PVP)纤维。 得到的病毒PVP静电纺纤维悬浮于缓冲溶液中后显示细菌宿主的完整感染能力。