CN1389503A - In-situ compounding process of synthesizing nano composite chitosan/hydroxyapatite material - Google Patents

In-situ compounding process of synthesizing nano composite chitosan/hydroxyapatite material Download PDF

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Publication number
CN1389503A
CN1389503A CN 02136031 CN02136031A CN1389503A CN 1389503 A CN1389503 A CN 1389503A CN 02136031 CN02136031 CN 02136031 CN 02136031 A CN02136031 A CN 02136031A CN 1389503 A CN1389503 A CN 1389503A
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solution
chitosan
calcium
hydroxyapatite
ion
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CN1203120C (en
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胡巧玲
李保强
沈家骢
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The invention provides a new method of under the normal temperature and ordinary pressure preparing the shell glycan/the oxhydryl-apatite nano complex materials. The method includes: at first make up the calcium-ion solution and the phosphor-ion solution, then evenly mix the calcium-ion solution with the phosphor-ion solution and add the acetic acid into the mixture to form the solution, then dissolve the shell glycan into this solution, then inject the solution containing the shell glycan into the mould to shape and dry it. Adopting the method of the invention can assure that the particles of the oxhydryl-apetite disperse in the shell glycan base body at the nano measurement (20-100 nm), and the materials made by using the invention's method are transparent and yellowish, and their mechanical property obviously is improved.

Description

The compound method for preparing chitosan/hydroxyapatite nano matrix material of original position
Technical field
The present invention relates to the compound method for preparing chitosan/hydroxyapatite nano matrix material of original position.
Background technology
(Chitosan CS) is a kind of natural biodegradable polysaccharide to chitosan, and its degraded product is for having weakly alkaline glucosamine, to human body and organize nontoxic, harmless.It also has natural pharmaceutical activity, anti-tumor activity, antiinflammation except having excellent biocompatibility, impaired biological physical efficiency is induced special cells, accelerates wound healing.
(Hydroxyapatite, chemical structural formula HA) are (Ca to hydroxyapatite 10(OH) 2(PO 4) 6), be the main component (containing 60~70%) of human body natural's bone, have the guided bone of fabulous biological activity and osseous tissue growth.Proved that the HA kind plants the growth of physical efficiency inducing peripheral osseous tissue, and formed firm Chemical bond with host bone.
Hydroxyapatite is joined the synosteosis ability that can improve chitosan/hydroxyapatite composite material in the glycan substrate, promote the damaged reparation of bone; At present, the method for preparing chitosan/hydroxyapatite composite material mainly contains in direct blend, lyophilize and the solidification liquid and solidifies.Generally all be that employing is a matrix with the hydroxyapatite, account for 60%~90% (weight), and chitosan mainly be as excipient, tackiness agent in this system.Add chitosan solution in hydroapatite particles, hydroapatite particles is modulated into mashed prod or paste, hydroxyapatite just can be by any plastotype like this.But final material still shows the biological ceramics performance, and promptly fragility is big, and flexural strength is low.And be that the composite degradation of matrix is very slow with the hydroxyapatite, do not match with the process of union of fracture.The matrix material of this method preparation a little less than the two interface binding power of hydroxyapatite and chitosan, causes material opaque in appearance because the hydroxyapatite dispersion is inhomogeneous, presents white; Aspect mechanical property, descend.Therefore how to guarantee that in hydroxyapatite homodisperse in the glycan substrate matrix that is dispersed in chitosan smaller with guaranteeing hydroapatite particles be emphasis and the difficult point problem for preparing this class material at present.
Summary of the invention
The purpose of this invention is to provide the compound method for preparing chitosan/hydroxyapatite nano matrix material of original position, this method can guarantee that hydroxyapatite is dispersed in the glycan substrate.
The inventive method may further comprise the steps:
1) presses hydroxyapatite Ca 10(OH) 2(PO 4) 6To choose suitable calcium salt and phosphoric acid salt compound concentration respectively be that ionic calcium soln and the concentration of 0.5Kg/L~4.0Kg/L is the phosphate ion solution of 0.35Kg/L~2.0Kg/L to the amount of calcium ion and phosphonium ion in the chemical formula;
2) ionic calcium soln and the phosphate ion solution of respectively getting 50ml~400ml mixes in container, adds a certain amount of acetate, is mixed with acetic acid concentration (by volume) and is 1~8% solution;
3) chitosan is dissolved in step 2) in the gained solution, be mixed with chitosan content (by weight) and be 2.5%~6% chitosan solution;
4) chitosan solution that takes a morsel injects mould and forms one deck inner membrance earlier, then chitosan solution is injected mould, putting it into concentration (by weight) again is in 3~10%NaOH solidification liquid and mold removal, after 2~5 hours the chitosan solution gel stick is put into the distilled water rinsing to neutral, put into 50~80 ℃ of drying in oven.
Among the present invention, said calcium salt can be calcium chloride, lime carbonate, nitrocalcite, and phosphoric acid salt can be SODIUM PHOSPHATE, MONOBASIC, potassium primary phosphate, dipotassium hydrogen phosphate.
The invention provides a kind of in (both under mild conditions) preparation chitosan/hydroxyapatite nano matrix material novel method under normal temperature, the normal pressure.This method can guarantee hydroapatite particles, and (20~100nm) are dispersed in the chitosan basal body with nano-scale, the transparent little Huang of material that makes with the inventive method, mechanical property obviously improves, can remain in the bone repair process in the hydroxyapatite calcium ion and phosphonium ion continues, steadily, from glycan substrate, discharge lentamente, avoided the burst release phenomenon.
Embodiment
Further specify the present invention below in conjunction with specific examples.
The compound method for preparing chitosan/hydroxyapatite nano matrix material of original position of the present invention may further comprise the steps:
1) presses hydroxyapatite Ca 10(OH) 2(PO 4) 6To choose suitable calcium salt and phosphoric acid salt compound concentration respectively be that ionic calcium soln and the concentration of 1.6Kg/L is the phosphate ion solution of 0.8Kg/L to the amount of calcium ion and phosphonium ion in the chemical formula;
2) ionic calcium soln and the phosphate ion solution of respectively getting 200ml mixes in container, adds a certain amount of acetate, is mixed with acetic acid concentration (by volume) and is 2% solution;
3) chitosan is dissolved in step 2) in the gained solution, be mixed with chitosan content (by weight) and be 4% chitosan solution;
4) chitosan solution that takes a morsel injects mould and forms one deck inner membrance earlier, then chitosan solution is injected mould, putting it into concentration again is in the 5%NaOH solidification liquid and mold removal, after 4 hours the chitosan solution gel stick is put into the distilled water rinsing to neutral, put into 70 ℃ of drying in oven.Make chitosan of the present invention/hydroxyapatite nano material, its color and luster: little Huang is transparent, flexural strength: 89 ± 4MPa, modulus in flexure: 3.5 ± 0.1Gpa.
The mechanical property that table 1 has provided several samples compares.Table 1
Sample Flexural strength (MPa) Modulus in flexure (GPa)
Natural bone ?22±0.8 ?1.4±0.4
Pure chitosan ?94±12 ?3.5±0.5
Direct blend CS/HA=100/5 ?68±2 ?3.2±0.2
The compound CS/HA=100/5 of original position ?86±7 ?3.4±0.1
By table 1 as seen, prepare the mechanical property height of the mechanical property of material with in-situ compounding process, and be higher than the mechanical property of natural bone far away than the preparation sample of blend.

Claims (2)

1. the compound method for preparing chitosan/hydroxyapatite nano matrix material of original position is characterized in that may further comprise the steps:
1) presses hydroxyapatite Ca 10(OH) 2(PO 4) 6To choose suitable calcium salt and phosphoric acid salt compound concentration respectively be that ionic calcium soln and the concentration of 0.5Kg/L~4.0Kg/L is the phosphate ion solution of 0.35Kg/L~2.0Kg/L to the amount of calcium ion and phosphonium ion in the chemical formula;
2) ionic calcium soln and the phosphate ion solution of respectively getting 50ml~400ml mixes in container, adds a certain amount of acetate, is mixed with acetic acid concentration (by volume) and is 1~8% solution;
3) chitosan is dissolved in step 2) in the gained solution, be mixed with chitosan content (by weight) and be 2.5%~6% chitosan solution;
4) chitosan solution that takes a morsel injects mould and forms one deck inner membrance earlier, then chitosan solution is injected mould, putting it into concentration (by weight) again is in 3~10%NaOH solidification liquid and mold removal, after 2~5 hours the chitosan solution gel stick is put into the distilled water rinsing to neutral, put into 50~80 ℃ of drying in oven.
2. the compound method for preparing chitosan/hydroxyapatite nano matrix material of original position according to claim 1 is characterized in that said calcium salt is calcium chloride, lime carbonate, nitrocalcite, and phosphoric acid salt is SODIUM PHOSPHATE, MONOBASIC, potassium primary phosphate, dipotassium hydrogen phosphate.
CN 02136031 2002-07-15 2002-07-15 In-situ compounding process of synthesizing nano composite chitosan/hydroxyapatite material Expired - Fee Related CN1203120C (en)

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CN1203120C CN1203120C (en) 2005-05-25

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1307253C (en) * 2005-02-03 2007-03-28 徐放 Chitosan water-retaining gel adhesive substrate materials and method for preparing same
CN1326574C (en) * 2005-12-13 2007-07-18 天津大学 Nanometer hydroxyapatite/chitosan/gelatin porous scaffold material and preparation method thereof
CN100381181C (en) * 2005-10-21 2008-04-16 四川大学 Step-degrdeable bioactive implanting material comprising growth promotion factor
CN100551451C (en) * 2007-04-26 2009-10-21 山东大学 Composite of a kind of repairing bone defect and preparation method thereof
CN101822961A (en) * 2010-03-10 2010-09-08 武汉理工大学 In situ preparation method of hydroxyapatite /chitosan core-shell nanospheres
WO2011035573A1 (en) * 2009-09-28 2011-03-31 暨南大学 Nanometer hydroxyapatite / natural polymer composite material, preparation method and use thereof
CN102276879A (en) * 2010-06-11 2011-12-14 中国科学院合肥物质科学研究院 Fibrous nano-hydroxyapatite/chitosan composite material and preparation method thereof
CN101352585B (en) * 2008-07-31 2012-02-01 华南理工大学 Method for preparing directionally arranged nano hydroxylapatite granule/chitosan stent
CN102397581A (en) * 2011-11-21 2012-04-04 浙江大学 Method for generating chitosan/calcium phosphate hybrid material by electrochemical method biomimetic mineralization
CN101301495B (en) * 2008-06-03 2012-07-25 陕西科技大学 Method for preparing bone screw biological compound material
CN101648036B (en) * 2009-08-26 2012-10-03 天津大学 Lamellar hydroxylapatite and chitosan nano composite material as well as preparation method and application thereof
CN103463680A (en) * 2013-08-21 2013-12-25 吴江市英力达塑料包装有限公司 Preparation process of medical implant material
CN105086319A (en) * 2015-08-18 2015-11-25 中国科学院上海硅酸盐研究所 Bionic-structure hydroxyapatite (Hap)/polymer composite material, and preparation method and application thereof
CN106512099A (en) * 2016-11-24 2017-03-22 上海大学 Chitosan-based bionic bone tissue engineering scaffold and production method thereof
CN108714251A (en) * 2018-06-06 2018-10-30 浙江大学 The method that two-step method prepares the chitosan-based synthetism plate material of high hydroxyapatite content
CN109549928A (en) * 2017-09-26 2019-04-02 清华大学深圳研究生院 A kind of compound microballoon of Chitosan-Thiolated Polymers/calcium carbonate and preparation method thereof
CN110172199A (en) * 2019-06-25 2019-08-27 扬州大学 A kind of preparation method of hydroxyapatite/ultra-high molecular weight polyethylene nano-complex

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1307253C (en) * 2005-02-03 2007-03-28 徐放 Chitosan water-retaining gel adhesive substrate materials and method for preparing same
CN100381181C (en) * 2005-10-21 2008-04-16 四川大学 Step-degrdeable bioactive implanting material comprising growth promotion factor
CN1326574C (en) * 2005-12-13 2007-07-18 天津大学 Nanometer hydroxyapatite/chitosan/gelatin porous scaffold material and preparation method thereof
CN100551451C (en) * 2007-04-26 2009-10-21 山东大学 Composite of a kind of repairing bone defect and preparation method thereof
CN101301495B (en) * 2008-06-03 2012-07-25 陕西科技大学 Method for preparing bone screw biological compound material
CN101352585B (en) * 2008-07-31 2012-02-01 华南理工大学 Method for preparing directionally arranged nano hydroxylapatite granule/chitosan stent
CN101648036B (en) * 2009-08-26 2012-10-03 天津大学 Lamellar hydroxylapatite and chitosan nano composite material as well as preparation method and application thereof
WO2011035573A1 (en) * 2009-09-28 2011-03-31 暨南大学 Nanometer hydroxyapatite / natural polymer composite material, preparation method and use thereof
CN101822961B (en) * 2010-03-10 2012-06-27 武汉理工大学 In situ preparation method of hydroxyapatite /chitosan core-shell nanospheres
CN101822961A (en) * 2010-03-10 2010-09-08 武汉理工大学 In situ preparation method of hydroxyapatite /chitosan core-shell nanospheres
CN102276879A (en) * 2010-06-11 2011-12-14 中国科学院合肥物质科学研究院 Fibrous nano-hydroxyapatite/chitosan composite material and preparation method thereof
CN102397581A (en) * 2011-11-21 2012-04-04 浙江大学 Method for generating chitosan/calcium phosphate hybrid material by electrochemical method biomimetic mineralization
CN103463680A (en) * 2013-08-21 2013-12-25 吴江市英力达塑料包装有限公司 Preparation process of medical implant material
CN105086319B (en) * 2015-08-18 2018-05-08 中国科学院上海硅酸盐研究所 Hydroxyapatite/polymer composite material with bionical construction and preparation method and application
CN105086319A (en) * 2015-08-18 2015-11-25 中国科学院上海硅酸盐研究所 Bionic-structure hydroxyapatite (Hap)/polymer composite material, and preparation method and application thereof
CN106512099A (en) * 2016-11-24 2017-03-22 上海大学 Chitosan-based bionic bone tissue engineering scaffold and production method thereof
CN106512099B (en) * 2016-11-24 2019-07-23 上海大学 Chitosan-based biotic bone tissue engineering stent and preparation method thereof
CN109549928A (en) * 2017-09-26 2019-04-02 清华大学深圳研究生院 A kind of compound microballoon of Chitosan-Thiolated Polymers/calcium carbonate and preparation method thereof
CN108714251A (en) * 2018-06-06 2018-10-30 浙江大学 The method that two-step method prepares the chitosan-based synthetism plate material of high hydroxyapatite content
CN110172199A (en) * 2019-06-25 2019-08-27 扬州大学 A kind of preparation method of hydroxyapatite/ultra-high molecular weight polyethylene nano-complex
CN110172199B (en) * 2019-06-25 2022-03-01 扬州大学 Preparation method of hydroxyapatite/ultra-high molecular weight polyethylene nano composite

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