581results about "Monocomponent protein artificial filament" patented technology

The invention is directed to compositions and methods for preparing electrospun matrices comprising at least one natural biological material component and at least one synthetic polymer material. The natural component makes the matrices highly biocompatible while the molecular weight polymer component can impart additional strength mechanical strength to the scaffold and/or improve ease of manufacture by increasing viscosity and spinning characteristics of the solution during electrospining.

The invention is directed to formation and use of electroprocessed collagen, including use as an extracellular matrix and, together with cells, its use in forming engineered tissue. The engineered tissue can include the synthetic manufacture of specific organs or tissues which may be implanted into a recipient. The electroprocessed collagen may also be combined with other molecules in order to deliver substances to the site of application or implantation of the electroprocessed collagen. The collagen or collagen/cell suspension is electrodeposited onto a substrate to form tissues and organs.

A method of forming electrospun fiber mats from a plurality of different biodegradable polymeric fibers is provided, in which a plurality of up to six different biodegradable polymer solutions are electrospun together by a method comprising the steps of providing a plurality of up to six different biodegradable polymer solutions each containing at least one biologically or pharmaceutically active material and each in communication with a needle for electrospinning a biodegradable polymer fiber from the solution, and pumping each solution through its respective needle into an electric field under conditions effective to produce uncontrolled charged jet streams of the polymer solutions directed at a grounded rotating mandrel, thereby forming fiber threads of the biologically or pharmaceutically active compounds and polymers in the solutions that are deposited on the mandrel to form an electrospun non-woven fiber mat, wherein the needles are positioned for co-deposition of the fiber threads from the polymer solution streams together on the mandrel to form a fiber mat.

This invention includes a method of producing a thin, oriented layer of polymer material. The material is preferably produced by the method of introducing a shearing flow to a free surface in a predominantly monomeric solution of the self-assembling polymer sub-units, and inducing polymerization or growth of the monomer while in this shearing flow. The system for forming the oriented layer of material provides relative movement between a delivery system and the substrate on or over which the material is deposited. The rate of flow of the material from the delivery system and the relative velocity between the deposition surface and the material as it is delivered to the surface are controlled to properly orient the material at the desired thickness. These rates can be adjusted to vary the properties of the film in a controlled manner. Preferred embodiments include either angular or linear relative movement between the delivery system and the substrate.

The present invention provides a process for producing a colored structured protein product with protein fibers that are substantially aligned and the resultant product. Specifically, the plant protein is combined with a colorant and extruded, forming a colored structured protein product with protein fibers that are substantially aligned and the resultant product.

The present invention belongs to the field of radiation resisting technology, and is especially one kind of nanometer wave absorbing fiber. The nanometer wave absorbing fiber consists of nanometer wave absorbing particle of 1-100 nm diameter of fine fiber of 30-2000 nm diameter in the weight ratio of 3-35 to 65-97. The nanometer wave absorbing fiber has wide wave absorbing range, powerful wave absorbing capacity, lasting wave absorbing effect and high flexibility. It has wave absorbing function, as well as antistatic, bacteriostasis, biochemical protection and other functions.

Filaments containing a filament-forming material and an additive, such as an ingestible active agent, nonwoven webs, and methods for making such filaments are provided.

The invention discloses a silk-fibroin-based antibacterial nanofiber and a preparation method thereof. The nanofiber comprises the following components in parts by weight: 40-98 parts of silk fibroin, 1-10 parts of titanium dioxide and 1-60 parts of chitosan. The preparation method comprises the following steps: degumming and drying silk to obtain fibroin, processing fibroin to prepare a regenerated silk fibroin film, dissolving silk fibroin, titanium dioxide and chitosan in a polar solvent according to a certain mass ratio to prepare a spinning solution with the mass concentration of 0.01-80%, and preparing the silk fibroin-based antibacterial nanofiber with the average diameter of 10-1000 nm in a room-temperature state by electrostatic spinning equipment. The silk fibroin-based antibacterial nanofiber newly developed by the invention has an antibacterial ratio of more than 95%, has the characteristics of good biocompatibility and excellent mechanical performance while having the characteristic of long antibacterial property, and is suitable for biomedical materials.

Hydroxyl polymer-containing compositions, especially hydroxyl polymer-containing compositions that can be processed into polymeric structures, especially polymeric structures in the form of fibers are provided.

The invention provides a wool fibre fabric sweat shirt (pants) with functions of powerful antibiosis, cancer prevention and life prolonging by utilizing nano silver, selenium and germanium, belonging to the technical field of healthy wool textile fibre fabrics clothes production. In the real life of people, various germs, viruses and fungi are contacted unavoidably, in particular, various bird flu and HIV discovered currently seriously threaten the health of human beings. Nano silver can kill 650 types of pathogens; far-infrared rays are almost absorbed by the skin of human body completely to lead the surface temperature of the skin to rise; heat energy impels the blood vessel to expand, improves blood circulation and microcirculation; the electromagnetic wave is colorless, tasteless and formless, can easily cause pollution to human body and is a potential killer. The anions in the air are vitamins and longevity elements in the air and are beneficial to human body; selenium and germanium are important elements to prevent and resist cancer; and the mixture of bee series can comprehensively supplement a plurality of nutrient active components required by human body. After nano treatment, the efficacy of anti-aging traditional Chinese medicine can be improved to 100 times.

A method of forming a fiber made of peptide nanostructures is disclosed. The method comprises: providing peptide nanostructures in solution, and fiberizing the solution thereby forming at least one fiber of the peptide nanostructures. Also disclosed are methods of forming films and other articles using the peptide nanostructures.

A nanowire comprising only metal having an average length of 1 mum or more which could not be produced in the prior art, and a method of manufacturing this wire. This invention provides a method of manufacturing a metal nanowire, which comprises the step of reducing a nanofiber comprising a metal complex peptide lipid formed from the two-headed peptide lipid represented by the general formula (I): , in which Val is a valine residue, m is 1-3 and n is 6-18, and a metal ion, using 5-10 equivalents of a reducing agent relative to the two-headed peptide lipid. It further provides a metal nanowire having an average diameter of 10-20 nm and average length of 1 mum or more. It is preferred that the metal is copper.

The invention relates to a method for preparing natural material inorganic nanoparticle composite nano-fiber through electrostatic spinning, which comprises steps that a template is added into diluted aqueous alkali, the mixture is heated to 80-90 DEG C through an oil bath, mixed for 1-10 hours, gradually added with tetraethyl orthosilicate, centrifugally washed by deionized water and absolute ethyl alcohol sequentially, and dried and reflowed in HCL-ethanol mixed liquor to remove the template, so freeze dried mesoporous silicon is obtained; and natural materials are dissolved in the solvent to prepare the natural material solution, the mesoporous silicon is added into the natural material solution for electrostatic spinning, fumigating and crosslinking are carried out for 0-48 hours, so the natural material mesoporous silicon composite nano-fiber is obtained. The natural material inorganic nanoparticle composite nano-fiber which is prepared by the method has good biocompatibility, a simple preparation method and moderate reaction conditions, is low in experimental raw material price, has high drug-loading rate, can be controlled to be released for a long term, and can be applied in the biomedicine and tissue regeneration fields of growth factor and gene release of tissue engineering, cancer treatment and the like.

The present invention encompasses methodologies and parameters for the formation of nanofibrous (to microfibrous) laminin via electrospinning. The present application discloses conditions and appropriate parameters to synthesize laminin fibers from a diameter of about 10 nM to a diameter of over 1,000 nM via electrospinning.