CN115227867B - 一种抗菌复合材料及其制备方法和应用 - Google Patents
一种抗菌复合材料及其制备方法和应用 Download PDFInfo
- Publication number
- CN115227867B CN115227867B CN202210792520.5A CN202210792520A CN115227867B CN 115227867 B CN115227867 B CN 115227867B CN 202210792520 A CN202210792520 A CN 202210792520A CN 115227867 B CN115227867 B CN 115227867B
- Authority
- CN
- China
- Prior art keywords
- loaded
- polyethylene glycol
- composite material
- nano silver
- alginate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 90
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 78
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 78
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 69
- 235000010443 alginic acid Nutrition 0.000 claims abstract description 63
- 229920000615 alginic acid Polymers 0.000 claims abstract description 63
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims abstract description 61
- 229940072056 alginate Drugs 0.000 claims abstract description 61
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 238000004132 cross linking Methods 0.000 claims abstract description 11
- 230000017423 tissue regeneration Effects 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 22
- OOTFVKOQINZBBF-UHFFFAOYSA-N cystamine Chemical compound CCSSCCN OOTFVKOQINZBBF-UHFFFAOYSA-N 0.000 claims description 17
- 229940099500 cystamine Drugs 0.000 claims description 17
- 210000000988 bone and bone Anatomy 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 230000000845 anti-microbial effect Effects 0.000 claims description 10
- 150000001718 carbodiimides Chemical class 0.000 claims description 9
- 238000011068 loading method Methods 0.000 claims description 9
- 108010073929 Vascular Endothelial Growth Factor A Proteins 0.000 claims description 7
- 102000005789 Vascular Endothelial Growth Factors Human genes 0.000 claims description 7
- 108010019530 Vascular Endothelial Growth Factors Proteins 0.000 claims description 7
- 239000004599 antimicrobial Substances 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- 238000011069 regeneration method Methods 0.000 claims description 5
- QNVSXXGDAPORNA-UHFFFAOYSA-N Resveratrol Natural products OC1=CC=CC(C=CC=2C=C(O)C(O)=CC=2)=C1 QNVSXXGDAPORNA-UHFFFAOYSA-N 0.000 claims description 4
- LUKBXSAWLPMMSZ-OWOJBTEDSA-N Trans-resveratrol Chemical compound C1=CC(O)=CC=C1\C=C\C1=CC(O)=CC(O)=C1 LUKBXSAWLPMMSZ-OWOJBTEDSA-N 0.000 claims description 4
- UREBDLICKHMUKA-CXSFZGCWSA-N dexamethasone Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@]2(F)[C@@H]1[C@@H]1C[C@@H](C)[C@@](C(=O)CO)(O)[C@@]1(C)C[C@@H]2O UREBDLICKHMUKA-CXSFZGCWSA-N 0.000 claims description 4
- 229960003957 dexamethasone Drugs 0.000 claims description 4
- 229940016667 resveratrol Drugs 0.000 claims description 4
- 235000021283 resveratrol Nutrition 0.000 claims description 4
- 239000001606 7-[(2S,3R,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-2-(4-hydroxyphenyl)chroman-4-one Substances 0.000 claims description 2
- OGSPWJRAVKPPFI-UHFFFAOYSA-N Alendronic Acid Chemical compound NCCCC(O)(P(O)(O)=O)P(O)(O)=O OGSPWJRAVKPPFI-UHFFFAOYSA-N 0.000 claims description 2
- 102000004388 Interleukin-4 Human genes 0.000 claims description 2
- 108090000978 Interleukin-4 Proteins 0.000 claims description 2
- 208000023178 Musculoskeletal disease Diseases 0.000 claims description 2
- 229960004343 alendronic acid Drugs 0.000 claims description 2
- 239000011258 core-shell material Substances 0.000 claims description 2
- 229940028885 interleukin-4 Drugs 0.000 claims description 2
- DFPMSGMNTNDNHN-ZPHOTFPESA-N naringin Chemical compound O[C@@H]1[C@H](O)[C@@H](O)[C@H](C)O[C@H]1O[C@H]1[C@H](OC=2C=C3O[C@@H](CC(=O)C3=C(O)C=2)C=2C=CC(O)=CC=2)O[C@H](CO)[C@@H](O)[C@@H]1O DFPMSGMNTNDNHN-ZPHOTFPESA-N 0.000 claims description 2
- 229940052490 naringin Drugs 0.000 claims description 2
- 229930019673 naringin Natural products 0.000 claims description 2
- 102000007350 Bone Morphogenetic Proteins Human genes 0.000 claims 1
- 108010007726 Bone Morphogenetic Proteins Proteins 0.000 claims 1
- 229940112869 bone morphogenetic protein Drugs 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 abstract description 14
- 239000004332 silver Substances 0.000 abstract description 14
- -1 silver ions Chemical class 0.000 abstract description 13
- 208000035143 Bacterial infection Diseases 0.000 abstract description 2
- 208000022362 bacterial infectious disease Diseases 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 38
- 230000000052 comparative effect Effects 0.000 description 33
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 24
- 239000007864 aqueous solution Substances 0.000 description 18
- 210000004027 cell Anatomy 0.000 description 18
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical group [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 18
- 230000000694 effects Effects 0.000 description 17
- 239000000499 gel Substances 0.000 description 16
- 238000000338 in vitro Methods 0.000 description 10
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 9
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 description 9
- 102000004190 Enzymes Human genes 0.000 description 9
- 108090000790 Enzymes Proteins 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 229910001961 silver nitrate Inorganic materials 0.000 description 9
- 239000000661 sodium alginate Substances 0.000 description 9
- 235000010413 sodium alginate Nutrition 0.000 description 9
- 229940005550 sodium alginate Drugs 0.000 description 9
- 239000002953 phosphate buffered saline Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 102000002260 Alkaline Phosphatase Human genes 0.000 description 7
- 108020004774 Alkaline Phosphatase Proteins 0.000 description 7
- 230000000921 morphogenic effect Effects 0.000 description 7
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 6
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 6
- 238000010907 mechanical stirring Methods 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- 102000004169 proteins and genes Human genes 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- XZKIHKMTEMTJQX-UHFFFAOYSA-N 4-Nitrophenyl Phosphate Chemical compound OP(O)(=O)OC1=CC=C([N+]([O-])=O)C=C1 XZKIHKMTEMTJQX-UHFFFAOYSA-N 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 5
- 108010049931 Bone Morphogenetic Protein 2 Proteins 0.000 description 5
- 102100024506 Bone morphogenetic protein 2 Human genes 0.000 description 5
- 238000002835 absorbance Methods 0.000 description 5
- 230000001580 bacterial effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 206010031252 Osteomyelitis Diseases 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 239000000872 buffer Substances 0.000 description 4
- 239000000969 carrier Substances 0.000 description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 4
- 210000002950 fibroblast Anatomy 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 241000223924 Eimeria Species 0.000 description 3
- 239000004471 Glycine Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 239000001963 growth medium Substances 0.000 description 3
- 239000000017 hydrogel Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 210000000963 osteoblast Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000006144 Dulbecco’s modified Eagle's medium Substances 0.000 description 2
- 238000002965 ELISA Methods 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000000783 alginic acid Substances 0.000 description 2
- 229960001126 alginic acid Drugs 0.000 description 2
- 150000004781 alginic acids Chemical class 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 229940124350 antibacterial drug Drugs 0.000 description 2
- 239000012620 biological material Substances 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000001516 cell proliferation assay Methods 0.000 description 2
- 239000003593 chromogenic compound Substances 0.000 description 2
- 239000003636 conditioned culture medium Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 231100000135 cytotoxicity Toxicity 0.000 description 2
- 230000003013 cytotoxicity Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000002458 infectious effect Effects 0.000 description 2
- 230000004072 osteoblast differentiation Effects 0.000 description 2
- 230000009818 osteogenic differentiation Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000035755 proliferation Effects 0.000 description 2
- 230000028327 secretion Effects 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 238000001132 ultrasonic dispersion Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 1
- FYKHWKNFKLTGNX-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1.OC1=CC=C([N+]([O-])=O)C=C1 FYKHWKNFKLTGNX-UHFFFAOYSA-N 0.000 description 1
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 108010049870 Bone Morphogenetic Protein 7 Proteins 0.000 description 1
- 102100022544 Bone morphogenetic protein 7 Human genes 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 208000002565 Open Fractures Diseases 0.000 description 1
- 206010031253 Osteomyelitis acute Diseases 0.000 description 1
- 206010031256 Osteomyelitis chronic Diseases 0.000 description 1
- 239000001888 Peptone Substances 0.000 description 1
- 108010080698 Peptones Proteins 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 206010067268 Post procedural infection Diseases 0.000 description 1
- 101710151715 Protein 7 Proteins 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 229920004890 Triton X-100 Polymers 0.000 description 1
- 239000013504 Triton X-100 Substances 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004115 adherent culture Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000007640 basal medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 231100000263 cytotoxicity test Toxicity 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical compound P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000002900 effect on cell Effects 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012091 fetal bovine serum Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000036252 glycation Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 231100001083 no cytotoxicity Toxicity 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229940066429 octoxynol Drugs 0.000 description 1
- 229920002113 octoxynol Polymers 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 235000019319 peptone Nutrition 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 150000004804 polysaccharides Chemical class 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000737 potassium alginate Substances 0.000 description 1
- 235000010408 potassium alginate Nutrition 0.000 description 1
- MZYRDLHIWXQJCQ-YZOKENDUSA-L potassium alginate Chemical compound [K+].[K+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O MZYRDLHIWXQJCQ-YZOKENDUSA-L 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000007910 systemic administration Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/047—Other specific metals or alloys not covered by A61L27/042 - A61L27/045 or A61L27/06
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/20—Polysaccharides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/54—Biologically active materials, e.g. therapeutic substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
- A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
- A61L2300/104—Silver, e.g. silver sulfadiazine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/216—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials with other specific functional groups, e.g. aldehydes, ketones, phenols, quaternary phosphonium groups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/412—Tissue-regenerating or healing or proliferative agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/412—Tissue-regenerating or healing or proliferative agents
- A61L2300/414—Growth factors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
- A61L2300/602—Type of release, e.g. controlled, sustained, slow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/80—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special chemical form
- A61L2300/802—Additives, excipients, e.g. cyclodextrins, fatty acids, surfactants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/12—Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Transplantation (AREA)
- Epidemiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dermatology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Materials For Medical Uses (AREA)
Abstract
本发明公开了一种抗菌复合材料及其制备方法和应用,该抗菌复合材料由包括负载纳米银的聚乙二醇和负载活性因子的交联海藻酸盐凝胶的原料制得;所述负载活性因子的交联海藻酸盐凝胶和负载纳米银的聚乙二醇形成半互穿网络结构;所述交联海藻酸盐凝胶为海藻酸盐经交联反应制得。本发明中的抗菌复合材料通过聚乙二醇包覆纳米银,聚乙二醇与交联海藻酸盐凝胶之间形成半互穿网络结构,可以实现银离子的缓释,银离子的释放周期及抑菌效果可达21天以上,更适用于存在细菌感染下的组织修复与重建的应用。
Description
技术领域
本发明涉及材料领域,具体涉及一种抗菌复合材料及其制备方法和应用。
背景技术
严重开放性骨折、骨科术后感染、急慢性骨髓炎所导致的感染性骨缺损的修复重建已成为临床医生面临的巨大挑战,常需要多次手术,早期局部抗生素的应用能有效减少开放伤骨感染,抗菌人工骨支架材料有望用于治疗感染性骨缺损。将抗菌性药物与载体结合的药物控释系统是有效解决骨感染难题的选择之一,药物控释系统可以在植入部位直接或间接地促进药物的延长释放,除了持续和可控的给药外,这些给药载体还可以保护活性因子和蛋白质分子免于解离或失活,提高整体生物利用度和临床疗效。与全身用药相比,局部给药降低了血浆药物浓度,从而避免了一些不良反应或一般毒性;而且靶向骨感染部位的局部给药载体通常具有一定的骨诱导活性,结合抗菌性药物和骨修复材料的局部给药系统在骨感染治疗中表现出显著的优势。
研究表明纳米银颗粒对数十种致病微生物都有强烈的抑制和杀灭作用,无耐药性,无细胞毒性,能够促进伤口的愈合。金属离子如银离子对细菌的影响是多方面的,它们通过改变正常生物膜内外的极化状态形成新的细胞内外离子浓度差,阻碍或破坏维持细胞生理功能的小分子和大分子物质的运输。一些金属离子如银离子也可以进入微生物细胞内,使大多数酶失活,发挥抗菌效能。但是,当金属离子如银离子的浓度过高时,会造成生物毒性。因此,需要生物材料作为银的载体材料,使之缓慢释放阴离子,在抗菌的同时不造成生物毒性。纳米介孔硅基材料表面含有许多纳米级微孔结构,具有庞大的比表面积和多微孔结构,具有很高的活性。介孔硅基材料具有优良的吸附性能,是一种理想的无机抗菌剂载体。用传统的沉淀法制备的纳米银材料,粒度大且尺寸分布较宽,影响其抗菌性能的高效性。
海藻酸是一类自然界普遍存在的多糖类物质,来源广泛,价格便宜,具备良好的生物相容性,广泛应用于新型生物材料的研发中,如细胞载体、受伤组织修复材料、生物活性物质的释放载体等。海藻酸盐能与多种二价阳离子通过静电相互作用构成离子交联型水凝胶。但离子交联型水凝胶材料存在一个缺点即能与多种一价阳离子发生离子交换反应,使其失去凝胶特性。因此,材料的稳定性有待提高。
发明内容
为了克服上述现有技术存在的问题,本发明的目的之一在于提供一种抗菌复合材料。
本发明的目的之二在于提供一种抗菌复合材料的制备方法。
本发明的目的之三在于提供一种骨支架材料。
本发明的目的之四在于提供一种抗菌复合材料在组织修复材料或再生材料中的应用。
本发明的目的之五在于提供一种抗菌复合材料在制备治疗骨科疾病的药物或材料中的应用。
为了实现上述目的,本发明所采取的技术方案是:
本发明的第一个方面在于提供一种抗菌复合材料,由包括负载纳米银的聚乙二醇和负载活性因子的交联海藻酸盐凝胶的原料制得;所述负载活性因子的交联海藻酸盐凝胶和负载纳米银的聚乙二醇形成半互穿网络结构;所述交联海藻酸盐凝胶为海藻酸盐经交联反应制得。本发明中的“半互穿网络结构”是指负载活性因子的交联海藻酸盐凝胶和负载纳米银的聚乙二醇形成的互穿网络结构中,负载纳米银的聚乙烯醇为线性非交联的,负载活性因子的交联海藻酸盐凝胶是交联的。
优选地,所述活性因子包括骨形态发生蛋白、白介素-4、血管内皮生长因子、阿仑膦酸钠、地塞米松、柚皮甙、白藜芦醇中的至少一种;进一步优选地,所述活性因子包括骨形态发生蛋白、血管内皮生长因子、地塞米松、白藜芦醇中的至少一种。
优选地,所述骨形态发生蛋白包括骨形态发生蛋白-2、骨形态发生蛋白-7。
优选地,所述负载纳米银的聚乙二醇为核壳结构,聚乙二醇为壳,纳米银为核。
优选地,所述负载纳米银的聚乙二醇的粒径为10~80nm。
优选地,所述聚乙二醇的数均分子量为100~30000Da;进一步优选地,所述聚乙二醇的数均分子量为200~20000Da;再进一步优选地,所述聚乙二醇的数均分子量为400~10000Da;更进一步优选地,所述聚乙二醇的数均分子量为1000~10000Da;更优选地,所述聚乙二醇的数均分子量为200Da、400Da、600Da、800Da、1000Da、2000Da、4000Da、10000Da或20000Da。
优选地,每1mg抗菌复合材料中,纳米银的负载量为0.005~0.1mg。
优选地,每1g抗菌复合材料中,活性因子的负载量为0.01~0.1mg。
优选地,所述负载纳米银的聚乙二醇和负载活性因子的交联海藻酸盐凝胶的质量比为(0.2~2):1。
优选地,每1mg抗菌复合材料中,纳米银的负载量为0.01~0.1mg;进一步优选地,每1mg抗菌复合材料中,纳米银的负载量为0.03~0.1mg;再进一步优选地,每1mg抗菌复合材料中,纳米银的负载量为0.05~0.1mg。
优选地,每1g抗菌复合材料中,活性因子的负载量为0.02~0.08mg;进一步优选地,每1g抗菌复合材料中,活性因子的负载量为0.04~0.08mg;再进一步优选地,每1g抗菌复合材料中,活性因子的负载量为0.05~0.07mg。
优选地,所述负载纳米银的聚乙二醇和负载活性因子的交联海藻酸盐凝胶的质量比为(0.5~2):1;进一步优选地,所述负载纳米银的聚乙二醇和负载活性因子的交联海藻酸盐凝胶的质量比为(1~2):1;再进一步优选地,所述负载纳米银的聚乙二醇和负载活性因子的交联海藻酸盐凝胶的质量比为(1~1.5):1。
优选地,所述交联反应为:在碳二亚胺存在下使海藻酸盐与胱胺交联。
本发明的第二个方面在于提供本发明第一个方面提供的抗菌复合材料的制备方法,包括以下步骤:
S1:制备负载纳米银的聚乙二醇和负载活性因子的海藻酸盐;
S2:将负载纳米银的聚乙二醇和负载活性因子的海藻酸盐混合,然后使负载活性因子的海藻酸盐进行交联反应,制得所述抗菌复合材料。
优选地,所述步骤S2中的混合步骤包括机械搅拌混合、超声混合中的至少一种。
优选地,所述机械搅拌混合的搅拌速度为100~2000rpm;进一步优选地,所述机械搅拌混合的搅拌速度为200~1200rpm。
优选地,所述机械搅拌混合的搅拌时间为5~60min;进一步优选地,所述机械搅拌混合的搅拌时间为10~40min;再进一步优选地,所述机械搅拌混合的搅拌时间为10~25min。
优选地,所述超声混合的超声波频率为10~30KHz;进一步优选地,所述超声混合的超声波频率为15~25KHz;再进一步优选地,所述超声混合的超声波频率为20~25KHz。
优选地,所述超声混合的超声波功率为100~1000W;进一步优选地,所述超声混合的超声波功率为200~1000W;再进一步优选地,所述超声混合的超声波功率为200~800W。
优选地,所述超声混合的时间为5~60min;进一步优选地,所述超声混合的时间为10~40min;再进一步优选地,所述超声混合的时间为10~30min。
优选地,所述制备负载活性因子的海藻酸盐具体为:将活性因子与海藻酸盐混合制得。
优选地,所述海藻酸盐为海藻酸一价金属盐。
优选地,所述海藻酸盐包括海藻酸钠、海藻酸钾中的至少一种。
优选地,所述制备负载纳米银的聚乙二醇的步骤具体为:将纳米银源与聚乙二醇混合反应制得;进一步优选地,所述制备负载纳米银的聚乙二醇的步骤具体为:将纳米银源与聚乙二醇溶液混合反应12~24h制得;再进一步优选地,所述制备负载纳米银的聚乙二醇的步骤具体为:将纳米银源与聚乙二醇溶液在避光、15~35℃条件下混合反应12~24h制得。
优选地,所述纳米银源为硝酸银。
优选地,所述聚乙二醇的粒径为10~20nm。
优选地,所述聚乙二醇水溶液的浓度为0.02~0.06g/mL;进一步优选地,所述聚乙二醇水溶液的浓度为0.03~0.05g/mL;再进一步优选地,所述聚乙二醇水溶液的浓度为0.04~0.05g/mL。
优选地,所述纳米银源与聚乙二醇水溶液的质量体积比为(0.003~0.01):1g/mL;进一步优选地,所述纳米银源与聚乙二醇水溶液的质量体积比为(0.005~0.01):1g/mL;再进一步优选地,所述纳米银源与聚乙二醇水溶液的质量体积比为(0.008~0.01):1g/mL。
优选地,所述步骤S2具体为:将负载活性因子的海藻酸盐缓慢溶解在负载纳米银的聚乙二醇溶液中,然后使负载活性因子的海藻酸盐进行交联反应,制得所述抗菌复合材料。
优选地,所述步骤S2中的交联反应具体为:使负载活性因子的海藻酸盐与碳二亚胺混合反应,然后与胱胺交联。在水溶性的碳二亚胺的活化作用下,海藻酸盐中的羧基与胱胺中的氨基发生酰胺化反应,形成化学交联的海藻酸盐水凝胶。活性因子负载在交联海藻酸盐凝胶中,交联海藻酸盐凝胶网络中存在线型的聚乙二醇,从而形成半互穿网络结构。
优选地,所述负载活性因子的海藻酸盐与碳二亚胺混合反应时间为20~80min;进一步优选地,所述负载活性因子的海藻酸盐与碳二亚胺混合反应时间为30~70min;再进一步优选地,所述负载活性因子的海藻酸盐与碳二亚胺混合反应时间为40~60min。
优选地,所述碳二亚胺与负载活性因子的海藻酸盐的质量比为(1~5):1;进一步优选地,所述碳二亚胺与负载活性因子的海藻酸盐的质量比为(1~4):1;再进一步优选地,所述碳二亚胺与负载活性因子的海藻酸盐的质量比为(2~3):1。
优选地,所述胱胺与负载活性因子的海藻酸盐的质量比为(0.5~3):1;进一步优选地,所述胱胺与负载活性因子的海藻酸盐的质量比为(1~3):1;再进一步优选地,所述胱胺与负载活性因子的海藻酸盐的质量比为(2~3):1。
优选地,所述胱胺与负载活性因子的海藻酸盐的交联时间为0.5~2h;进一步优选地,所述胱胺与负载活性因子的海藻酸盐的交联时间为1~2h。
优选地,所述海藻酸盐和负载纳米银的聚乙二醇溶液的质量体积比为(0.02~0.08):1g/mL;进一步优选地,所述海藻酸盐和负载纳米银的聚乙二醇溶液的质量体积比为(0.03~0.06):1g/mL;再进一步优选地,所述海藻酸盐和负载纳米银的聚乙二醇溶液的质量体积比为(0.04~0.06):1g/mL。
优选地,所述负载纳米银的聚乙二醇溶液的pH为4.5~6;进一步优选地,所述负载纳米银的聚乙二醇溶液的pH为5~6。
本发明的第三个方面在于提供一种骨支架材料,包括本发明第一个方面提供的抗菌复合材料。
本发明的第四个方面在于提供本发明第一个方面提供的抗菌复合材料在组织修复材料或再生材料中的应用。
本发明的第五个方面在于提供本发明第一个方面提供的抗菌复合材料在制备治疗骨科疾病的药物或材料中的应用。
本发明的有益效果是:本发明中的抗菌复合材料通过聚乙二醇包覆纳米银,聚乙二醇与交联海藻酸盐凝胶之间形成半互穿网络结构,可以实现银离子的缓释,银离子的释放周期及抑菌效果可达21天以上,更适用于存在细菌感染下的组织修复与重建的应用。本发明中的聚乙二醇一方面作为纳米银的载体材料,起到稳定纳米银胶体的作用,可获得粒径分布为10~80nm且分散均匀的负载纳米银的聚乙二醇;另一方面聚乙二醇与交联的海藻酸盐凝胶形成半互穿网络,增强海藻酸盐的机械强度。
本发明中的抗菌复合材料中的交联海藻酸盐凝胶中含有二硫键,具有氧化还原降解特性,随着交联海藻酸盐凝胶的缓慢降解,纳米银被缓释,从而实现长效抗菌效果。
此外,本发明中的制备方法工艺简单,对设备的要求不高,原料均已产业化、来源易得,成本低廉,易于实现产业化。
附图说明
图1为实施例1~5和对比例1中的复合材料的细胞增殖测试图。
图2为本发明实施例1~5和对比例1中的复合材料的体外银离子释放曲线图。
图3为实施例1~5和对比例1~3中的复合材料的体外诱导前成骨细胞成骨分化测试图。
图4为本发明实施例1~5和对比例1~3中的复合材料的压缩强度测试图。
具体实施方式
以下结合附图和实例对本发明的具体实施作进一步详细说明,但本发明的实施和保护不限于此。需要指出的是,以下若为有未特别详细说明之过程,均是本领域技术人员可参照现有技术实现或理解的。所用试剂或仪器未注明生产厂商者,视为可以通过市售购买得到的常规产品。
原料信息:
骨形态发生蛋白2可以购买自Sigma、Gibco、Invitrogen、碧云天、赛业、艾美捷等公司;
血管内皮生长因子可以购买自Sigma、Gibco、Invitrogen、碧云天、赛业、艾美捷等公司;
骨形态发生蛋白7可以购买自Sigma、Gibco、Invitrogen、碧云天、赛业、艾美捷等公司。
实施例1
本例中的抗菌复合材料采用以下制备方法制得,具体包括以下步骤:
将50mg硝酸银缓慢溶解在10mL 0.05g/mL的聚乙二醇(数均分子量为2000Da)水溶液中,避光、室温条件下搅拌反应12h,得到纳米银/聚乙二醇溶液。采用乙酸将纳米银/聚乙二醇溶液的pH值调至5,加入20mL含500mg海藻酸钠和50μg骨形态发生蛋白2(BMP-2)的水溶液,机械分散20min(转速为500rpm);加入2g水溶性碳二亚胺,反应60min;再加入1.5g胱胺溶液,反应0.5h。反应后,对产物进行过滤、洗涤,获得本例中的抗菌复合材料。
实施例2
本例中的抗菌复合材料采用以下制备方法制得,具体包括以下步骤:
将80mg硝酸银缓慢溶解在10mL 0.05g/mL的聚乙二醇(数均分子量为600Da)水溶液中,避光、室温条件下搅拌反应16h,得到纳米银/聚乙二醇溶液。采用乙酸将纳米银/聚乙二醇溶液的pH值调至4.5,加入30mL的含400mg海藻酸钠和20μg血管内皮生长因子的水溶液,超声分散30min(超声条件为:20KHz,800W);加入1.2g水溶性碳二亚胺,反应30min;再加入0.2g胱胺溶液,反应2h。反应后,对产物进行过滤、洗涤,获得本例中的抗菌复合材料。
实施例3
本例中的抗菌复合材料采用以下制备方法制得,具体包括以下步骤:
将40mg硝酸银缓慢溶解在10mL 0.02g/mL的聚乙二醇(数均分子量为10000Da)水溶液中,避光、室温条件下搅拌反应18h,得到纳米银/聚乙二醇溶液。采用乙酸将纳米银/聚乙二醇溶液的pH值调至4.5,加入25mL的含200mg海藻酸钠和35μg骨形态发生蛋白7的水溶液,机械分散10min(转速为1200rpm);加入1g水溶性碳二亚胺,反应20min;再加入0.4g胱胺溶液,反应2h。反应后,对产物进行过滤、洗涤,获得本例中的抗菌复合材料。
实施例4
本例中的抗菌复合材料采用以下制备方法制得,具体包括以下步骤:
将100mg硝酸银缓慢溶解在10mL 0.06g/mL的聚乙二醇(数均分子量为200Da)水溶液中,避光、室温条件下搅拌反应20h,得到纳米银/聚乙二醇溶液。采用乙酸将纳米银/聚乙二醇溶液的pH值调至6,加入50mL的含800mg海藻酸钠和50μg地塞米松的水溶液,超声分散10min(超声条件为25KHz,200W);加入0.8g水溶性碳二亚胺,反应80min;加入1.2g胱胺溶液,反应1.5h。反应后,对产物进行过滤、洗涤,获得本例中的抗菌复合材料。
实施例5
本例中的抗菌复合材料采用以下制备方法制得,具体包括以下步骤:
将60mg硝酸银缓慢溶解在10mL 0.03g/mL的聚乙二醇(数均分子量为4000Da)水溶液中,避光、室温条件下搅拌反应24h,得到纳米银/聚乙二醇溶液。采用乙酸将纳米银/聚乙二醇溶液的pH值调至5,加入30mL含600mg海藻酸钠和100μg白藜芦醇的水溶液,机械分散25min(转速为200rpm);加入1.2g水溶性碳二亚胺,反应40min;再加入0.48g胱胺溶液,反应1h。反应后,对产物进行过滤、洗涤,获得本例中的抗菌复合材料。
对比例1
本例中的抗菌复合材料与实施例1相比,区别之处在于:在制备纳米银时不使用聚乙二醇。本例采用以下制备方法制得,具体包括以下步骤:
将50mg硝酸银、500mg海藻酸钠溶解于含50μg骨形态发生蛋白2的10mL水中,采用乙酸将溶液的pH值调至5,机械分散20min(转速为500rpm);加入2g水溶性碳二亚胺,反应60min;加入1.5g胱胺溶液,反应0.5h。反应后,对产物进行过滤、洗涤,获得本例中的抗菌复合材料。
对比例2
本例中的复合材料与实施例2相比,区别之处在于:不使用硝酸银。本例采用以下制备方法制得,具体包括以下步骤:
配制10mL 0.05g/mL的聚乙二醇2000水溶液,避光、室温条件下搅拌反应12h,采用乙酸将溶液的pH值调至5,加入20mL含500mg海藻酸钠和50μg骨形态发生蛋白2的水溶液,机械分散20min(转速为500rpm);加入2g水溶性碳二亚胺,反应60min;再加入1.5g胱胺溶液,反应0.5h。反应后,对产物进行过滤、洗涤,获得本例中的复合材料。
对比例3
本例中的复合材料与实施例2相比,区别之处在于:不使用聚乙二醇和硝酸银。本例采用以下制备方法制得,具体包括以下步骤:
将500mg海藻酸钠溶解于含50μg的骨形态发生蛋白2的10mL水中,采用乙酸将溶液的pH值调至5,机械分散20min(转速为500rpm);加入2g水溶性碳二亚胺,反应60min;再加入1.5g胱胺溶液,反应0.5h。反应后,对产物进行过滤、洗涤,获得本例中的复合材料。
性能测试:
将实施例1-5和对比例1-3中制备得到的复合材料进行如下性能测试。
(1)体外细胞毒性评价
取实施例1-5和对比例1-3中制备得到的复合材料,按GB/T 16886.5-2017的要求进行评价和计分。实验结果如下表1所示:
表1实施例1~5及对比例1~3中制备得到的复合材料的体外细胞毒性测试结果
实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | 对比例1 | 对比例2 | 对比例3 | |
计分 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
由表1可知,本发明实施例1~5中制得的抗菌复合材料安全性高,无细胞毒性,可以适用于人体骨修复。
(2)材料细胞增殖测试
选用L929小鼠成纤维细胞(来源于中国科学院上海生命科学研究院细胞库)进行细胞增殖试验。设置空白组(L929细胞),实施例组(实施例1~5中的复合材料、L929细胞),对比例组(对比例1中的材料、L929细胞)。37℃下,分别将实施例1~5中的复合材料和对比例1中的材料浸没在培养基中过夜,种植细胞浓度为2.5×109个细胞/L的L929细胞20μL(达到5×104细胞/孔),平行数为5,分别培养1d,3d,7d后将培养基从培养板移除。用PBS冲洗3遍,每个孔加入400μL的培养基,然后在无光下再添加100μL的5g/L的MTT/PBS溶液(MTT为3-(4,5-二甲基噻唑-2)-2,5-二苯基四氮唑溴盐,商品名:噻唑蓝,PBS溶液为磷酸缓冲盐溶液)。用铝箔将培养板裹紧,37℃下孵化4h;用移液管移除培养基和MTT,每个孔添加200μL二甲基亚砜,混合几分钟;从每个孔移除100μL混合液,加入96孔板中;在490nm波长下,用ELISA(酶联接免疫吸附剂测定)试剂盒对孔板的溶液进行检测,记录吸光度值,具体测试结果如图1所示。
从图1可知,随时间的延长,空白组、实施例1~5组和对比例1组的吸光度值均不断增大,且实施例1~5组比空白组增大更快,到第七天时实施例1~5组的吸光度值明显超过空白组和对照1组,表明了实施例1~5中的复合材料中引入纳米银颗粒对小鼠成纤维细胞的生长无明显影响,且能促进小鼠成纤维细胞的增殖。而对比例1组由于没有用聚乙二醇包裹纳米银,导致纳米银浓度过大,抑制了小鼠成纤维细胞的增殖。
(3)体外银离子释放性能检测
将实施例1~5和对比例1中制备得到的复合材料进行体外溶质释放评价。评价方法具体为:
(1)首先分别精密称取2mg实施例1~5和对比例1中制备得到的复合材料至离心管中,加入PBS缓冲液至总体积为5ml,密封后,保持温度在37±1℃,100rpm下置于摇床中振摇。
(2)隔一段时间点,停止振摇,将释放介质经微孔滤膜过滤,测定释放的银离子浓度,根据投入的银离子量及取样的体积可计算出此时银离子释放的百分比。
(3)往沉淀中加入新鲜PBS缓冲液至总体积为5ml,继续按第一步条件振摇,然后重复进行2-3步。
(4)释放总时间为21天,最后根据时间和累积释放百分比得到银离子释放曲线。
按照上述方法测得的实施例1~5和对比例1中制备得到的复合材料体外银离子释放曲线图如图2所示,由图2可知,本发明中的抗菌复合材料的体外银离子释放周期可达21天以上,且在释放21天时,累计释放率不超过90%。
(4)抗菌性能检测
取金黄色葡萄球菌和大肠杆菌的斜面新鲜培养物,将菌液进行活菌计数,并用稀释液(含1%蛋白胨的0.03mol/L PBS(pH=7.2~7.4))配制成含菌量为10×106cfu/ml的菌悬液。将实施例1~5和对比例1~3中制备得到的复合材料分别放入无菌平皿中,加菌悬液50μL于各材料上并记录各管加菌时间,同时将实施例1~5和对比例1~3中制备得到的复合材料放入5ml营养肉汤管内。于加菌后60min将菌悬液接种血平板培养基,作为对照,血平板培养基中不含有实施例1~5和对比例1~3中的复合材料。将接种细菌的血平板培养基及肉汤管均放入37℃培养48h,观察初步结果,在无菌生长管继续培养至第21天。若肉汤管浑浊及血平板有菌生长,记为阳性,以(+)表示;如第21天仍澄清,视为无菌生长,以(–)表示;具体测试结果如下表2所示:
表2实施例1~5和对比例1~3中制备得到的复合材料的抗菌性能检测结果
由上表2可知,本发明中的抗菌复合材料具有长效抗菌效果,抗菌时间不少于21天。由图2和表2可知,实施例1与对比例1都是基于装载银离子的海藻酸盐。其中,实施例1在制备抗菌复合材料的过程中,使用聚乙二醇制备纳米银,对比例1则不使用聚乙二醇。在没有聚乙二醇预装载纳米银以及作为抗菌复合材料半互穿网络载主要成分的情况下,海藻酸盐中的银离子在24h内便释放出去,也达不到长效的抗菌效果。与实施例1相比,对比例2和3均不装载银离子,它们都没有杀菌效果。
(5)体外诱导前成骨细胞成骨分化性能检测
将实施例1~5和对比例1~3中制备得到的复合材料辐照灭菌后按照10mg/mL的浓度浸泡在DMEM基础培养基内,放入37℃摇床内120rpm浸提24h。浸提完成后将复合材料和培养基的混合物1000rpm离心后收集上清。将收集的浸提液分别用相应的DMEM培养基稀释2倍,最后添加10%胎牛血清得到条件培养基。
将MC3T3-E1细胞按照每孔1×105个的密度接种于24孔板,贴壁培养24h后分别更换条件培养基,在温度为37℃且5%二氧化碳气氛下的培养箱中培养。培养基每2-3d更换一次,培养7天后,MC3T3-E1细胞的成骨分化性能通过其分泌的碱性磷酸酶检测,利用pNPP法进行测定,具体步骤如下:细胞用PBS溶液洗涤后,浸没于含有0.1mol/L甘氨酸、1mmol/L氯化镁以及0.05%曲拉通X-100(辛苯昔醇)的PBS溶液。待细胞溶解后,将溶解液与对硝基苯磷酸二钠盐均匀混合,将混合液置于37℃下放置30min。随后,将混合液滴加到96孔板,用酶标仪测定405nm波长下各孔的吸光值。
碱性磷酸酶活性单位的定义:在pH9.8的二乙醇胺(DEA)缓冲液中,37℃条件下,每分钟水解对硝基苯磷酸酯(para-nitrophenyl phosphate)显色底物产生1微摩尔对硝基苯酚(p-nitrophenol)所需的碱性磷酸酶的量定义为一个酶活力单位,也被称作一个DEA酶活力单位。在pH9.6的甘氨酸缓冲液中,25℃条件下,每分钟水解对硝基苯磷酸酯显色底物产生1微摩尔对硝基苯酚所需的碱性磷酸酶的量定义为一个酶活力单位,也被称作一个Glycine酶活力单位。一个Glycine酶活力单位约相当于3个DEA酶活力单位。根据酶活性定义,计算出样品中的碱性磷酸酶活性并分别做图,具体如图3所示。
由图3可以看出,本发明实施例1~5中的抗菌复合材料都有较好的诱导细胞分泌碱性磷酸酶的效果,但对比例1在不使用聚乙二醇预装载纳米银以及作为抗菌复合材料半互穿网络载主要成分的情况下,抗菌复合材料浸提液中的银离子浓度较高,对细胞活性有不利的影响,因此也影响了细胞分泌碱性磷酸酶。此外,实施例2中含有血管内皮生长因子,有利于血管组织的再生,而新生血管组织有利于组织修复,但血管内皮生长因子在体外诱导前成骨细胞成骨分化性能方面的效果劣于实施例1和实施例3~4。
(6)复合材料的力学性能检测
利用万能材料试验机对实施例1~5和对比例1~3中制备得到的复合材料的力学性能进行了测定。在测试之前需要先制备测试试样:将实施例1~5和对比例1~3中制备得到的复合材料制备成高20mm,底面直径22mm的圆柱体,具体测试结果如图4所示。
由图4可知,实施例1~5中的抗菌复合材料都有较好的压缩强度,但对比例1不使用聚乙二醇作为抗菌复合材料半互穿网络载主要成分,所制得的抗菌复合材料的压缩强度较低。
上面对本发明实施例作了详细说明,但是本发明不限于上述实施例,在所属技术领域普通技术人员所具备的知识范围内,还可以在不脱离本发明宗旨的前提下做出各种变化。此外,在不冲突的情况下,本发明的实施例及实施例中的特征可以相互组合。
Claims (7)
1.一种抗菌复合材料,其特征在于:由包括负载纳米银的聚乙二醇和负载活性因子的交联海藻酸盐凝胶的原料制得;所述负载活性因子的交联海藻酸盐凝胶和负载纳米银的聚乙二醇形成半互穿网络结构;所述交联海藻酸盐凝胶为海藻酸盐经交联反应制得;所述活性因子包括骨形态发生蛋白、白介素-4、血管内皮生长因子、阿仑膦酸钠、地塞米松、柚皮甙、白藜芦醇中的至少一种;所述负载纳米银的聚乙二醇为核壳结构,聚乙二醇为壳,纳米银为核;所述交联反应为:在碳二亚胺存在下使海藻酸盐与胱胺交联。
2.根据权利要求1所述的抗菌复合材料,其特征在于:所述聚乙二醇的数均分子量为100~30000Da。
3.根据权利要求1所述的抗菌复合材料,其特征在于:所述抗菌复合材料具有以下至少一个特征:
(1)每1mg抗菌复合材料中,纳米银的负载量为0.005~0.1mg;
(2)每1g抗菌复合材料中,活性因子的负载量为0.01~0.1mg;
(3)所述负载纳米银的聚乙二醇和负载活性因子的交联海藻酸盐凝胶的质量比为(0.2~2):1。
4.权利要求1~3任一项所述的抗菌复合材料的制备方法,其特征在于:包括以下步骤:
S1:制备负载纳米银的聚乙二醇和负载活性因子的海藻酸盐;
S2:将负载纳米银的聚乙二醇和负载活性因子的海藻酸盐混合,然后使负载活性因子的海藻酸盐进行交联反应,制得所述抗菌复合材料。
5.一种骨支架材料,其特征在于:包括权利要求1~3任一项所述的抗菌复合材料。
6.权利要求1~3任一项所述的抗菌复合材料在制备组织修复材料或再生材料中的应用。
7.权利要求1~3任一项所述的抗菌复合材料在制备治疗骨科疾病的药物中的应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210792520.5A CN115227867B (zh) | 2022-07-07 | 2022-07-07 | 一种抗菌复合材料及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210792520.5A CN115227867B (zh) | 2022-07-07 | 2022-07-07 | 一种抗菌复合材料及其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115227867A CN115227867A (zh) | 2022-10-25 |
CN115227867B true CN115227867B (zh) | 2023-11-10 |
Family
ID=83671670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210792520.5A Active CN115227867B (zh) | 2022-07-07 | 2022-07-07 | 一种抗菌复合材料及其制备方法和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115227867B (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003200609B2 (en) * | 1998-05-18 | 2006-02-23 | Amgen Inc. | Biodegradable sustained-release alginate gels |
CN101773683A (zh) * | 2010-03-03 | 2010-07-14 | 天津大学 | 壳聚糖修饰的海藻酸盐水凝胶三维多孔支架及其制备方法 |
CN102250390A (zh) * | 2011-05-25 | 2011-11-23 | 天津大学 | 海藻酸盐水凝胶微载体及其制备方法 |
CN103040727A (zh) * | 2013-01-21 | 2013-04-17 | 天津工业大学 | 一种药物和蛋白质缓释海藻酸盐杂化凝胶的制备方法 |
CN103071181A (zh) * | 2013-02-01 | 2013-05-01 | 刘昌桂 | 一种水凝胶及其制备方法和用途 |
CN103768643A (zh) * | 2014-02-17 | 2014-05-07 | 周继胡 | 一种银离子海藻酸盐缓释抗菌凝胶及其制备方法 |
-
2022
- 2022-07-07 CN CN202210792520.5A patent/CN115227867B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003200609B2 (en) * | 1998-05-18 | 2006-02-23 | Amgen Inc. | Biodegradable sustained-release alginate gels |
CN101773683A (zh) * | 2010-03-03 | 2010-07-14 | 天津大学 | 壳聚糖修饰的海藻酸盐水凝胶三维多孔支架及其制备方法 |
CN102250390A (zh) * | 2011-05-25 | 2011-11-23 | 天津大学 | 海藻酸盐水凝胶微载体及其制备方法 |
CN103040727A (zh) * | 2013-01-21 | 2013-04-17 | 天津工业大学 | 一种药物和蛋白质缓释海藻酸盐杂化凝胶的制备方法 |
CN103071181A (zh) * | 2013-02-01 | 2013-05-01 | 刘昌桂 | 一种水凝胶及其制备方法和用途 |
CN103768643A (zh) * | 2014-02-17 | 2014-05-07 | 周继胡 | 一种银离子海藻酸盐缓释抗菌凝胶及其制备方法 |
Non-Patent Citations (1)
Title |
---|
纳米银缓释壳聚糖/聚乙烯醇伤口敷料的制备及表征;许为康等;中国组织工程研究;第16卷(第43期);第8024页左栏第2段、右栏第1段 * |
Also Published As
Publication number | Publication date |
---|---|
CN115227867A (zh) | 2022-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105778126B (zh) | 一种京尼平交联生物凝胶及其制备方法与应用 | |
Sacco et al. | Silver-containing antimicrobial membrane based on chitosan-TPP hydrogel for the treatment of wounds | |
DE69433920T2 (de) | Supplementierte verdichtungsmittel für gewebe, methoden für ihre herstellung und ihre verwendung | |
CN110314242B (zh) | 一种可控释放的抗生素复合水凝胶的制备方法及其用途 | |
WO2019091150A1 (zh) | 一种藻酸盐创面修复敷料及其制备方法 | |
CN108721690B (zh) | 一种药物缓释型抗菌敷料的制备方法及其产品 | |
Kar et al. | Polymer-assisted in situ synthesis of silver nanoparticles with epigallocatechin gallate (EGCG) impregnated wound patch potentiate controlled inflammatory responses for brisk wound healing | |
CN110876815A (zh) | 一种负载富血小板血浆和抗菌肽的水凝胶及其制备方法和应用 | |
Bankoti et al. | Carbon nanodot decorated acellular dermal matrix hydrogel augments chronic wound closure | |
CN106512064B (zh) | 一种具有抗菌性能的皮肤创伤敷料及其制备方法 | |
Liu et al. | Combined antibacterial and osteogenic in situ effects of a bifunctional titanium alloy with nanoscale hydroxyapatite coating | |
Öztürk et al. | Preparation and characterization of ciprofloxacin‐loaded alginate/chitosan sponge as a wound dressing material | |
KR101461159B1 (ko) | 약물 전달층을 포함하는 임플란트의 제조방법 및 이를 포함하는 생체이식용 임플란트 조성물 | |
Ueng et al. | In vivo study of biodegradable alginate antibiotic beads in rabbits | |
Pati et al. | Antibiofilm activity of chitosan/epsilon‐poly‐L‐lysine hydrogels in a porcine ex vivo skin wound polymicrobial biofilm model | |
CN112451738B (zh) | 一种银离子多糖聚合物抗菌敷料及其制备方法和应用 | |
CN114392388A (zh) | 一种水凝胶组合物及其应用 | |
CN115518195A (zh) | 一种长效抗菌复合微球及其制备方法和应用 | |
CN110935066B (zh) | 一种促进骨髓炎愈合的复合水凝胶及其制备方法 | |
CN113509591A (zh) | 一种抗菌阳离子可注射水凝胶敷料及其制备方法 | |
CN115227867B (zh) | 一种抗菌复合材料及其制备方法和应用 | |
CN115105629B (zh) | 一种抗菌水凝胶及其制备方法和应用 | |
CN114796502B (zh) | 一种响应型水凝胶载药系统及其制备方法和用途 | |
Fukushima et al. | Polycationic protamine for water-insoluble complex formation with DNA | |
Wu et al. | Bioinspired soft-hard combined system with mild photothermal therapeutic activity promotes diabetic bone defect healing via synergetic effects of immune activation and angiogenesis |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |