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US 7,332,321 B2Granted
Viral fibers
AssigneesBoard of Regents, The University of Texas System, Massachusetts Institute of Technology
InventorsAngela M. Belcher, Seung-Wuk Lee
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AssigneesBoard of Regents, The University of Texas System, Massachusetts Institute of Technology
InventorsAngela M. Belcher, Seung-Wuk Lee
Estimating the term…
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.
A method of forming a viral fibrous material comprising a plurality of fibers and a non-viral blending material comprising providing virus particles, a non-viral blending material, and a solvent in a fiber spinning composition, and then spinning the virus particles to form the fibrous material.
A method of forming a genetically engineered fibrous material comprising a plurality of fibers and a non-viral blending material comprising the step of fiber spinning genetically engineered virus particles with a non-viral blending material to form the fibrous material, wherein the virus particles of the fibrous material are specifically bound to a conjugate material after fiber spinning or are capable of specifically binding to a conjugate material after fiber spinning, and the virus particles of the fibrous material retain the virus structure after fiber spinning.
A fibrous material comprising a plurality of fibers, wherein the fibers comprise one or more fiber spun, genetically engineered virus particles which retain a viral structure in the fiber state and have specific binding sites for binding to a conjugate material, wherein the virus particles comprise expressed oligopeptide sequences which provide the specific binding.
A method comprising the step of:
A method of converting virus particles to fiber form in which the virus particles retain their virus structure in the solid state comprising the step of spinning the viral particles into fiber form with a non-viral blending material while controlling concentration, viscosity, and optional use of electric field to control the fiber form and retain the virus structure after spinning.
A fibrous material comprising a plurality of fibers, wherein the fibers comprise one or more fiber spun, genetically engineered virus particles which retain a viral structure in the fiber state and have specific binding sites for binding to a conjugate material, wherein the conjugate material is a semiconductor material, a magnetic material, or a metallic material.
A fibrous material comprising a plurality of fibers, wherein the fibers comprise one or more fiber spun, genetically engineered virus particles which retain a viral structure in the fiber state and have specific binding sites for binding to a conjugate material, wherein the conjugate material is a crystalline material.
A fibrous material comprising a plurality of fibers, wherein the fibers comprise one or more fiber spun, genetically engineered virus particles which retain a viral structure in the fiber state and have specific binding sites for binding to a conjugate material, wherein the conjugate material is a drug or enzyme.
A fibrous material comprising a plurality of fibers, wherein the fibers comprise one or more fiber spun, genetically engineered virus particles which retain a viral structure in the fiber state and have specific binding sites for binding to a conjugate material, wherein the fibrous material further comprises polymeric material.
Dependencies are inferred from the claim text.