Two-photon fluorescence biological silk material and preparation method thereof

A two-photon fluorescence, biological silk technology, applied in rayon manufacturing, single-component fibroin rayon, fiber chemical characteristics, etc., can solve the problem of high light damage, achieve stable interaction, excellent penetration performance, good mechanical properties
CN102080271AInactive Publication Date: 2011-06-01DONGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2011-06-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a two-photon fluorescence biological silk material and a preparation method thereof. The material is formed by evenly compounding two-photon inorganic fluorescent substances and biological silk protein materials at a mass ratio of (0.001-50):100. The excitation wavelength of the material is positioned near infrared, and the fluorescence wavelength is shorter than the excitation wavelength. The preparation method comprises the following steps: adding a fibroin solution into a solution containing the two-photon inorganic fluorescent substances; stirring to obtain a mixed solution; and drying, standing or spinning to obtain the two-photon fluorescence biological silk material. Alternatively, the preparation method comprises the following steps: at room temperature, adding pre-processed silk into a fibroin solution containing the two-photon inorganic fluorescent substances, and dipping;, and stirring, washing and drying to obtain the two-photon fluorescence biological silk material. The material provided by the invention has strong two-photon adsorption and adjustable two-photon fluorescence performance under the irradiation of near infrared laser; the wavelength of an excitation light source is bio-optically transparent and does not damage biological tissues; and the material has the advantages of good biocompatibility, strong mechanical property and good economic benefit, is easy to prepare and is suitable for industrial production.
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Description

technical field

[0001] The invention belongs to the field of two-photon fluorescent biological silk material and its preparation, in particular to a two-photon fluorescent biological silk material and its preparation method. Background technique

[0002] Biofilament is a biological fiber formed from biodegradable polymers. There are many kinds of biological silk, and the most studied ones include spider silk and silkworm silk. Spider silk is unmatched by other synthetic fibers, its specific modulus is better than steel, and its toughness is better than Kevlar fiber. As an excellent energy-absorbing fiber, spider silk is considered to be an ideal material for parachutes and body armor, and has broad application prospects in the fields of textiles, biotechnology, medical care, fine chemicals, and military materials. People have been studying spider silk for more than a century, and the research content involves gene identification, expression, structure and performance, bion...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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