A kind of full-service fluid medical hydrogel dressings absorbed by the body and its preparation
Method
Technical field
The invention belongs to medical dressing field of material technology, and in particular to a kind of full-service fluid doctor absorbed by the body
With aerogel dressing and preparation method thereof.
Background technique
Medical wound dressing is to be covered on wound or other damaging tissue's surface protection wounds to prevent trauma surface infestation and dehydration
Medical material.The process repaired according to wound tissue can be broadly divided into following three phases:The formation of wound inflammation, it is newborn
The reconstruction of granulation tissue and the reconstruction of bio-matrix, during wound is repaired, medical dressing can protect damaged skin, and
Diffusate and noxious material are absorbed simultaneously, allows to carry out gas exchanges inside and outside the surface of a wound, create an ideal reparation ring for wound
Border, but also have effects that prevent tissue infection, promote healing.
Currently, medical dressing mainly includes medical absorbent cotton and absorbent gauze, there is reticular structure abundant, wound is seeped
Liquid has certain absorbability out, and geology is soft, can sufficiently be combined with the surface of a wound, can promote wound healing, and source is extensively at low cost,
Preparation method is simple, but relatively wet healing environment cannot be provided for the surface of a wound, and granulation tissue is easily accessible deposited in growth
In the mesh of material, increase the difficulty of subsequent removal, or even cause the rupture again of wound, and dressing mesh is larger, bacterium is more held
Easily invasion causes infection.The composite activated carbon fibre of class containing only iridoid glycoside disclosed in Chinese patent CN 107158446A
Hemostasis, antibacterial, promoting healing medical dressing, Preparation method and use, which includes only iridoid glycoside class, ten
Six alkyl trimethyl ammonium chlorides, polyvinyl alcohol/collagen, matrix and medicinal active Carbon fibe, mesostroma include octadecyl alcolol,
SDS, albolene, Buddhist nun moor ethyl ester gold, atoleine, glycerol, beeswax, vegetable oil, sodium carboxymethylcellulose and sodium benzoate water
Solution, after the material in addition to medicinal active Carbon fibe is mixed, irradiation sterilization obtains solvent/ointment type dressing, then will be molten
Agent/ointment type dressing is coated in activated carbon fibre, dry, radiosterilization, obtains inhibition hemostasis, the control suitable for the various surface of a wound
Trauma surface infestation processed promotes wound healing.A kind of ingredient berberine containing Chinese medicine antibacterial disclosed in Chinese patent CN 105854068A
Sodium alginate nano fiber medical dressing and preparation method thereof, by Chinese medicine antibacterial ingredient berberine and sodium alginate and polyvinyl alcohol
After mixing, discontinuous degassing obtains electrostatic spinning solution, and ingredient berberine containing Chinese medicine antibacterial then is prepared through Static Spinning ounce
Sodium alginate nano fiber medical dressing.By the above-mentioned prior art it is found that having by being extracted from plants with antibacterial, hemostasis
Effect ingredient, which is added in medical dressing, assigns its functionality, but the functional material that the performance of medical dressing is not only loaded with it has
It closes, also has very big relationship with the material-structure of the carrier of dressing, therefore, functional material is sufficiently combined with the advantage of base-material
Just it is able to satisfy the reparation requirement of complicated type wound.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of full-service fluid medical aquogels absorbed by the body to apply
Keel and stamen nelumbini are that raw material extraction purification obtains the extract that there is antibacterial anti-inflammatory to stop blooding by material and preparation method thereof, abundant to obtain
It penetrates into the porous material containing fibroin and soybean protein, makes porous material gelation again, obtain absorbed by the body
Full-service fluid medical hydrogel dressings.
In order to solve the above technical problems, the technical scheme is that:
A kind of preparation method of full-service fluid medical hydrogel dressings absorbed by the body, includes the following steps:
(1) after mixing keel powder and stamen nelumbini powder, refluxing extraction 3 times in the ethanol solution of 65-70% are added to, are closed
And extracting solution, evaporated under reduced pressure obtain Chinese medical extract;
(2) Chinese medical extract by step (1) preparation is added in warm water, after mixing, macroporous resin column is crossed, through ethyl alcohol
After aqueous solution rinses, the antibacterial anti hemorrhagic extract that is purified;
(3) soybean protein is added to the water, is stirred to after being completely dissolved, fibroin solutions are added and continue stirring formation
Protein mixed solution is added dropwise to the mixed solution of glutaraldehyde and cetyl trimethylammonium bromide by protein mixed solution, heating
After stirring, it is placed in transient gel in the biochemical cultivation case of 37 DEG C of constant temperature, obtains soybean protein/fibroin gel;
(4) soybean protein/fibroin gel of step (3) preparation is taken out, is impregnated immediately after vacuum freeze drying
In the antibacterial anti hemorrhagic extract of the purifying of step (2) preparation, sufficient standing swelling obtains full-service fluid absorbed by the body
Medical hydrogel dressings.
As a preferred embodiment of the above technical solution, in the step (1), the mass ratio of keel powder and stamen nelumbini powder is 0.3-
0.6:1。
As a preferred embodiment of the above technical solution, in the step (1), the time of refluxing extraction is 60-90min.
As a preferred embodiment of the above technical solution, in the step (2), the temperature of warm water is 40-60 DEG C.
As a preferred embodiment of the above technical solution, in the step (2), the 25-30% of ethyl alcohol in ethanol water.
As a preferred embodiment of the above technical solution, in the step (3), the mass ratio of soybean protein and fibroin is 1:1-
3。
As a preferred embodiment of the above technical solution, in the step (3), glutaraldehyde accounts for the content of total system and is in mixed solution
45-80mmol/L, the content that cetyl trimethylammonium bromide accounts for total system is 35-40mmol/L.
As a preferred embodiment of the above technical solution, in the step (3), the temperature of heating stirring is 60-70 DEG C, and the time is
15-30min。
As a preferred embodiment of the above technical solution, in the step (4), the temperature of vacuum freeze drying is -20~-80 DEG C,
Time is 1-3d.
As a preferred embodiment of the above technical solution, any medical water-setting of full-service fluid absorbed by the body
The full-service fluid medical hydrogel dressings absorbed by the body of the preparation method preparation of glue dressing.
Compared with prior art, the invention has the advantages that:
(1) main body of full-service fluid medical hydrogel dressings absorbed by the body prepared by the present invention is fibroin
And soybean protein, fibroin and soybean protein are all made of amino acid, and the porous gel of fibroin and soybean protein
Good permeability, contact not only comfortable ventilating with the surface of a wound as dressing, but also can be absorbed by the body, make fibroin and soybean
The porous gel of albumen can long duration of action and surface of a wound surface connect for a long time as the absorption of nutrient ingredients of the surface of a wound without worrying
Stripping problem after touch, in addition, also containing in full-service fluid medical hydrogel dressings absorbed by the body prepared by the present invention
There is the plant extracts of keel and stamen nelumbini, the dry rhizome of keel can be clearing heat and detoxicating, anti-inflammatory analgesic, and stamen nelumbini has antibacterial anti hemorrhagic
Effect, therefore, two kinds of Chinese medicines, which are combined, makes hydrogel have effects that antibacterial anti-inflammatory hemostasis, by Chinese medical extract and porous gel
Material combines, and can more be conducive to the environment of the permanent safety and comfort for the surface of a wound, be conducive to the reparation of the surface of a wound.
(2) full-service fluid medical hydrogel dressings absorbed by the body prepared by the present invention have comfortable ventilative saturating
Wet performance is conducive to adjust surface of a wound temperature and humidity appropriate, cuts the Chinese medical extract contained in aerogel dressing and advantageously ensure that wound
Face is not by the infection of extraneous bacterium, it is most important that and aerogel dressing prepared by the present invention can be fully absorbed by the surface of a wound, therefore this
Invent preparation full-service fluid medical hydrogel dressings can the protection surface of a wound from beginning to end repairing phase, using effect is excellent
It is different.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention
For explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1:
It (1) is 0.3 by mass ratio:After 1 keel powder and stamen nelumbini powder mixing, it is added in 65% ethanol solution and returns
Stream extracts 3 times, each refluxing extraction 60min, and combined extract, evaporated under reduced pressure obtains Chinese medical extract.
(2) Chinese medical extract is added in 40 DEG C of warm water, after mixing, macroporous resin column is crossed, through 25% ethanol water
After solution rinses, the antibacterial anti hemorrhagic extract that is purified.
(3) soybean protein is added to the water, is stirred to after being completely dissolved, according to the quality of soybean protein and fibroin
Than being 1:1, be added fibroin solutions continue stirring forms protein mixed solution, by protein mixed solution be added dropwise to glutaraldehyde and
The mixed solution of cetyl trimethylammonium bromide, the content that wherein glutaraldehyde accounts for total system in mixed solution is 45mmol/L,
The content that cetyl trimethylammonium bromide accounts for total system is 35mmol/L, at 60 DEG C after heating stirring 15min, is placed in 37 DEG C
Constant temperature biochemical cultivation case in transient gel, obtain soybean protein/fibroin gel.
(4) soybean protein/fibroin gel after vacuum freeze drying 1d, is taken out, is impregnated in immediately pure at -20 DEG C
The antibacterial anti hemorrhagic extract of change, sufficient standing swelling, obtains full-service fluid medical hydrogel dressings absorbed by the body.
Embodiment 2:
It (1) is 0.6 by mass ratio:After 1 keel powder and stamen nelumbini powder mixing, it is added in 70% ethanol solution and returns
Stream extracts 3 times, each refluxing extraction 90min, and combined extract, evaporated under reduced pressure obtains Chinese medical extract.
(2) Chinese medical extract is added in 60 DEG C of warm water, after mixing, macroporous resin column is crossed, through 30% ethanol water
After solution rinses, the antibacterial anti hemorrhagic extract that is purified.
(3) soybean protein is added to the water, is stirred to after being completely dissolved, according to the quality of soybean protein and fibroin
Than being 1:3, be added fibroin solutions continue stirring forms protein mixed solution, by protein mixed solution be added dropwise to glutaraldehyde and
The mixed solution of cetyl trimethylammonium bromide, the content that wherein glutaraldehyde accounts for total system in mixed solution is 80mmol/L,
The content that cetyl trimethylammonium bromide accounts for total system is 40mmol/L, at 70 DEG C after heating stirring 30min, is placed in 37 DEG C
Constant temperature biochemical cultivation case in transient gel, obtain soybean protein/fibroin gel.
(4) soybean protein/fibroin gel after vacuum freeze drying 3d, is taken out, is impregnated in immediately pure at -80 DEG C
The antibacterial anti hemorrhagic extract of change, sufficient standing swelling, obtains full-service fluid medical hydrogel dressings absorbed by the body.
Embodiment 3:
It (1) is 0.5 by mass ratio:After 1 keel powder and stamen nelumbini powder mixing, it is added in 68% ethanol solution and returns
Stream extracts 3 times, each refluxing extraction 85min, and combined extract, evaporated under reduced pressure obtains Chinese medical extract.
(2) Chinese medical extract is added in 55 DEG C of warm water, after mixing, macroporous resin column is crossed, through 28% ethanol water
After solution rinses, the antibacterial anti hemorrhagic extract that is purified.
(3) soybean protein is added to the water, is stirred to after being completely dissolved, according to the quality of soybean protein and fibroin
Than being 1:1-3, addition fibroin solutions continue stirring and form protein mixed solution, and protein mixed solution is added dropwise to glutaraldehyde
With the mixed solution of cetyl trimethylammonium bromide, the content that wherein glutaraldehyde accounts for total system in mixed solution is 65mmol/
L, the content that cetyl trimethylammonium bromide accounts for total system is that 38mmol/L is placed in 37 at 67 DEG C after heating stirring 20min
DEG C constant temperature biochemical cultivation case in transient gel, obtain soybean protein/fibroin gel.
(4) soybean protein/fibroin gel after vacuum freeze drying 2d, is taken out, is impregnated in immediately pure at -60 DEG C
The antibacterial anti hemorrhagic extract of change, sufficient standing swelling, obtains full-service fluid medical hydrogel dressings absorbed by the body.
Embodiment 4:
It (1) is 0.45 by mass ratio:After 1 keel powder and stamen nelumbini powder mixing, it is added in 68% ethanol solution
Refluxing extraction 3 times, each refluxing extraction 75min, combined extract, evaporated under reduced pressure obtains Chinese medical extract.
(2) Chinese medical extract is added in 55 DEG C of warm water, after mixing, macroporous resin column is crossed, through 29% ethanol water
After solution rinses, the antibacterial anti hemorrhagic extract that is purified.
(3) soybean protein is added to the water, is stirred to after being completely dissolved, according to the quality of soybean protein and fibroin
Than being 1:1.5, addition fibroin solutions continue stirring and form protein mixed solution, and protein mixed solution is added dropwise to glutaraldehyde
With the mixed solution of cetyl trimethylammonium bromide, the content that wherein glutaraldehyde accounts for total system in mixed solution is 60mmol/
L, the content that cetyl trimethylammonium bromide accounts for total system is that 38mmol/L is placed in 37 at 68 DEG C after heating stirring 25min
DEG C constant temperature biochemical cultivation case in transient gel, obtain soybean protein/fibroin gel.
(4) soybean protein/fibroin gel after vacuum freeze drying 2.5d, is taken out, is impregnated in immediately at -50 DEG C
The antibacterial anti hemorrhagic extract of purifying, sufficient standing swelling, obtains full-service fluid medical hydrogel dressings absorbed by the body.
Embodiment 5:
It (1) is 0.3 by mass ratio:After 1 keel powder and stamen nelumbini powder mixing, it is added in 70% ethanol solution and returns
Stream extracts 3 times, each refluxing extraction 60min, and combined extract, evaporated under reduced pressure obtains Chinese medical extract.
(2) Chinese medical extract is added in 60 DEG C of warm water, after mixing, macroporous resin column is crossed, through 25% ethanol water
After solution rinses, the antibacterial anti hemorrhagic extract that is purified.
(3) soybean protein is added to the water, is stirred to after being completely dissolved, according to the quality of soybean protein and fibroin
Than being 1:3, be added fibroin solutions continue stirring forms protein mixed solution, by protein mixed solution be added dropwise to glutaraldehyde and
The mixed solution of cetyl trimethylammonium bromide, the content that wherein glutaraldehyde accounts for total system in mixed solution is 45mmol/L,
The content that cetyl trimethylammonium bromide accounts for total system is 40mmol/L, at 60 DEG C after heating stirring 30min, is placed in 37 DEG C
Constant temperature biochemical cultivation case in transient gel, obtain soybean protein/fibroin gel.
(4) soybean protein/fibroin gel after vacuum freeze drying 1d, is taken out, is impregnated in immediately pure at -80 DEG C
The antibacterial anti hemorrhagic extract of change, sufficient standing swelling, obtains full-service fluid medical hydrogel dressings absorbed by the body.
Embodiment 6:
It (1) is 0.6 by mass ratio:After 1 keel powder and stamen nelumbini powder mixing, it is added in 65% ethanol solution and returns
Stream extracts 3 times, each refluxing extraction 90min, and combined extract, evaporated under reduced pressure obtains Chinese medical extract.
(2) Chinese medical extract is added in 40 DEG C of warm water, after mixing, macroporous resin column is crossed, through 30% ethanol water
After solution rinses, the antibacterial anti hemorrhagic extract that is purified.
(3) soybean protein is added to the water, is stirred to after being completely dissolved, according to the quality of soybean protein and fibroin
Than being 1:1, be added fibroin solutions continue stirring forms protein mixed solution, by protein mixed solution be added dropwise to glutaraldehyde and
The mixed solution of cetyl trimethylammonium bromide, the content that wherein glutaraldehyde accounts for total system in mixed solution is 80mmol/L,
The content that cetyl trimethylammonium bromide accounts for total system is 35mmol/L, at 70 DEG C after heating stirring 15min, is placed in 37 DEG C
Constant temperature biochemical cultivation case in transient gel, obtain soybean protein/fibroin gel.
(4) soybean protein/fibroin gel after vacuum freeze drying 3d, is taken out, is impregnated in immediately pure at -20 DEG C
The antibacterial anti hemorrhagic extract of change, sufficient standing swelling, obtains full-service fluid medical hydrogel dressings absorbed by the body.
Through detecting, the porosity of the full-service fluid medical hydrogel dressings absorbed by the body of embodiment 1-6 preparation,
Water lock, antibiotic property, hemostatic and absorbability result are as follows:
|
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Embodiment 4 |
Embodiment 5 |
Embodiment 6 |
Porosity (%) |
46 |
59 |
52 |
53 |
49 |
57 |
Water retention (%) |
78 |
83 |
79 |
80 |
81 |
82 |
Antibiotic rate (%) |
89 |
93 |
92 |
90 |
92 |
90 |
Bleeding stopping period shortening rate (%) |
38 |
46 |
45 |
42 |
40 |
39 |
Absorbable rate (%) |
96 |
97 |
98 |
96 |
97 |
97 |
As seen from the above table, the porosity of full-service fluid medical hydrogel dressings absorbed by the body prepared by the present invention
Moderate, water lock is good, and hemostatic and antibacterial anti-inflammatory effects are good, also has good absorbability energy.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.