WO2005100468A1 - 温度応答性組成物およびそのヒドロゲル - Google Patents
温度応答性組成物およびそのヒドロゲル Download PDFInfo
- Publication number
- WO2005100468A1 WO2005100468A1 PCT/JP2004/004720 JP2004004720W WO2005100468A1 WO 2005100468 A1 WO2005100468 A1 WO 2005100468A1 JP 2004004720 W JP2004004720 W JP 2004004720W WO 2005100468 A1 WO2005100468 A1 WO 2005100468A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature
- responsive composition
- responsive
- hydrogel
- chitosan
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/06—Ointments; Bases therefor; Other semi-solid forms, e.g. creams, sticks, gels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
- C08J2305/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
Definitions
- the present invention relates to a novel temperature-responsive composition and a hydrogel thereof, and more particularly to a temperature-responsive composition containing hydroxyalkyl chitosan as a main component and a hydrogel obtained by heating the composition.
- a temperature-responsive composition is known as a material that changes from a solution state to a gel state by heating in response to temperature. The above changes are reversible or irreversible.
- Such temperature-responsive compositions are being studied as wound dressing materials, hemostatic materials, antithrombotic materials and other materials, and carriers for intelligent drugs that release drugs only when needed by the living body, such as in the case of disease. .
- thermoresponsive composition as a temperature-responsive polymer, for example, a segment having a cohesive individual on heating to a non-animal polysaccharide skeleton such as starch or cellulose, for example, poly (N-isopropylacrylamide) Those using N-butylisobutyric acid amide or the like (Japanese Patent Laid-Open No. 2003-252936, Japanese Patent Laid-Open No. 2003-256075), which are dissolved in water or a phosphate buffer solution at room temperature.
- biodegradable macromolecules such as oligopeptide chains and oligosaccharide chains or biodegradable sites in the molecule.
- Temperature-responsive polymers such as poly (N-isopropylacrylamide) and polyacrylamide were grafted onto polymers (biodegradation is enzymatic or non-enzymatic hydrolysis angle ⁇ )
- a soluble polymer Japanese Patent Application Laid-Open No. 11-322941
- an object of the present invention is to provide a novel temperature-responsive composition ⁇ J having biocompatibility and a hydrogel thereof, which are useful as a carrier for transporting and releasing drugs, bioactive substances, and the like.
- thermoresponsive composition of the present invention causes gelation and zonation due to a change in temperature
- biocompatible materials microorganism-immobilized carriers, cell growth bases, functional separation membranes, ion-permeable membranes, drug delivery systems It can be used for mechanochemical materials, sensors, switches, etc.
- FIG. 1 is a diagram showing the release behavior of BSA from the hydrogel of Example 6 (Experiment Nos. 4 to 7), and FIG. FIG. 3 is a view showing a BSA release behavior, and FIG. 3 is a view showing a BSA release behavior from the hydrogenation of Example 6 (experiment numbers 12 to 15). Ming disclosure
- the present invention provides a temperature-responsive composition comprising a hydroxyalkyl chitosan and an aqueous solution. .
- the hydroxy / realkyl group is At least one member selected from the group consisting of a hydroxypropynole group, a hydroxybutyl group and a hydroxyhexyl group;
- the hydroxyalkyl chitosan has a hydroxyalkylation degree of 0.5 to 6 mol per mol of a vilanose ring; de Asechiru degree of Russia alkoxyalkyl chitosan, 50-1 00
- Monore 0/0 is that, to contain and more drugs or bioactive substances;. concentration hydroxyalkyl chitosan 0 1-90 be mass% preferable.
- the present invention also provides a hydrogel obtained by heating the temperature-responsive composition of the present invention to form a gel, and heating the above-described temperature-responsive composition of the present invention.
- a method for producing a hydrogel is provided.
- the hydroxyalkyl chitosan used in the present invention is a non-toxic or very low-toxic biocompatible chitosan that is converted into a hydroxyalkynole, which dissolves in an aqueous liquid such as water or an aqueous buffer. Is done.
- the production method is not particularly limited, and examples thereof include a method of hydroxyalkylating an amino group and / or a hydroxyl group of chitosan with propylene oxide, butylene oxide, hexylene oxide and the like.
- chitin may be used as a starting material, which may be hydroquinalkylated and then acetylated.
- hydroxyalkyl group include those having about 3 to 6 carbon atoms in an alkyl group such as a hydroxypropynole group, a hydroxybutyl group and a hydroxyhexyl group. Preferred are hydroxypropyl and hydroxybutyl groups.
- the degree of hydroxyalkylation and the degree of deacetylation of hydroxyalkyl chitosan are not particularly limited.
- the degree of hydroxyalkylation is preferably 0.5 to 6 mol, more preferably 0.7 to 3 mol, per monol of the pyranose ring.
- de-Asechiru degree is preferably in the range of 50-100 mol 0/0.
- the molecular weight of the hydroxyalkyl chitosan is not particularly limited as long as it is soluble in the aqueous solution, and if the number average molecular weight (determined by reducing the reducing end group by the modified method) is 10,000. A range of ⁇ 1,000,000 is preferred.
- the temperature-responsive composition of the present invention is composed of the above-mentioned hydroxyalkyl chitosan and an aqueous solution, and changes from a solution state to a gel by heating.
- aqueous solutions include water, aqueous buffers (eg, phosphate buffer, Tris-HCl buffer, acetate buffer, citrate buffer, etc.), physiological saline, and aqueous alcohol solutions (eg, ethyl alcohol Aqueous solution), a polyhydric alcohol solution (eg, a 5% by mass glycerin aqueous solution, an ethylene glycol aqueous solution, etc.), and a sugar aqueous solution (eg, a 5% by mass aqueous dulose solution, a glucose solution, etc.).
- the concentration of solute O such as ethanol 7 real alcohol in the aqueous solution may be a concentration at which hydrogluca S of hydroxyalkylchitosan is formed, and is not limited to the above concentration.
- Most of these aqueous solutions are soluble solutions of hydroxyalkyl chitosan, and the most suitable one is selected and used according to the temperature-responsive composition and the intended use of the hydrogel obtained therefrom.
- the temperature-responsive composition of the present invention can be used as a solution in which a hydroxyalkyl chitosan is dissolved in an aqueous solution, or as a gelled state by heating.
- concentration of hydroxyalkyl tosan in the composition varies depending on the solution viscosity, but is usually 0.1 to 90 mass. / 0 , preferably 0.5 to 50% by mass, more preferably 2 to 15% by mass.
- the temperature responsive 'compositions of the invention are reversible hydrogel-forming substances.
- the temperature-responsive composition of the present invention is used as a carrier for transporting or releasing a drug or a bioactive substance, the drug or the bioactive substance is mixed in the process of forming the temperature-responsive composition of the present invention. .
- the drug / bioactive substance release ability can be freely controlled, and a drug delivery carrier having desired properties can be produced.
- the temperature-responsive composition of the present invention may be used in addition to the above-mentioned carrier, a wound dressing material, an adhesion preventing material, which is applied to an affected area by adding a target drug or the like. It can also be used as a hemostatic material. Furthermore, it can also be used as an enzyme-immobilized carrier, a microorganism-immobilized carrier, and the like.
- a test tube 0.1 g of low molecular weight hydroxybutyl chitosan (hydroxybutylation degree: 1.0 monol, dehydroquinolation degree: 100%, number average molecular weight: 150,000) was added to 0.1 g of high molecular weight hydroxybutyl chitosan (hydroxybutylation degree: 1%).
- 0.0 mol Deacetylation degree 100 mol%, number average molecular weight 230,000
- 0.1 Calories and 0.8 g of distilled water are added, and then stirred at 4 ° C for 24 hours to dissolve.
- the temperature-responsive composition of the present invention is obtained as a pale yellow, transparent, highly viscous solution.
- the test tube containing the temperature-responsive composition (4 ° C.) was immersed in a constant temperature water bath at room temperature, the viscosity gradually increased, and the hydrogel of the present invention was formed.
- Fogging was defined as the temperature at which the l% 7j ⁇ solution began to become turbid visually.
- the temperature-responsive composition of the present invention which is a solution of a phosphate buffer having different concentrations of hydroxybutyl chitosan (see Table 1) shown in Table 3, was prepared at 4 ° C. Each of the test tubes was immersed in a constant temperature water bath at 37 ° C, and the state of gelation was observed. Table 3 shows the results. Table 3
- a temperature-responsive composition of the present invention which is a solution of a phosphate buffer having different concentrations of hydroxybutyl chitosan (see Table 1) shown in Table 4 in a test tube, was prepared. Furthermore, 5% bovine serum albumin protein (BSA: molecular weight 66, OOO) as a model drug was added to each temperature-responsive composition to a concentration of 2%, and further added at 4 ° C for 24 hours. The mixture was gently mixed to obtain a light yellow, transparent, highly viscous solution of the temperature-responsive composition of the present invention.
- BSA bovine serum albumin protein
- thermoresponsiveness using a biocompatible hydroxyalkyl chitosan which can be used as a drug, a carrier for transporting a bioactive agent, a release carrier, a wound dressing material applicable to an affected part, a hemostatic material, and the like.
- Compositions and hydrogels thereof are provided.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epidemiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Materials For Medical Uses (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2004/004720 WO2005100468A1 (ja) | 2004-03-31 | 2004-03-31 | 温度応答性組成物およびそのヒドロゲル |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2004/004720 WO2005100468A1 (ja) | 2004-03-31 | 2004-03-31 | 温度応答性組成物およびそのヒドロゲル |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005100468A1 true WO2005100468A1 (ja) | 2005-10-27 |
Family
ID=35149971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/004720 Ceased WO2005100468A1 (ja) | 2004-03-31 | 2004-03-31 | 温度応答性組成物およびそのヒドロゲル |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2005100468A1 (ja) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516879A (ja) * | 1974-07-08 | 1976-01-20 | Sekisui Chemical Co Ltd | Hantoseimakujobutsu |
| JPS57180602A (en) * | 1981-04-30 | 1982-11-06 | Nippon Soda Co Ltd | Production of water-soluble chitosan derivative and film-forming agent comprising same |
| JPS63503149A (ja) * | 1986-04-30 | 1988-11-17 | ウエラ アクチェンゲゼルシャフト | N−ヒドロキシブチルキトサンに基く化粧品、新規なn−ヒドキシブチルキトサンおよびその製造法 |
| JPH0225409A (ja) * | 1988-07-12 | 1990-01-26 | Ichimaru Pharcos Co Ltd | キトサン誘導体配合化粧料 |
| JPH03109310A (ja) * | 1989-09-22 | 1991-05-09 | Ichimaru Pharcos Co Ltd | キトサン誘導体含有化粧料 |
| JPH041139A (ja) * | 1990-04-17 | 1992-01-06 | Nippon Soda Co Ltd | 徐放性薬剤組成物 |
| JPH06172404A (ja) * | 1992-12-07 | 1994-06-21 | Shin Etsu Chem Co Ltd | ヒドロキシプロピルキトサンの製造方法 |
| JPH06340702A (ja) * | 1993-03-27 | 1994-12-13 | Hoechst Ag | 水性媒体中に可溶なn− ヒドロキシアルキルキトサンを製造及び後処理する方法 |
| JP2003160602A (ja) * | 2001-11-28 | 2003-06-03 | Japan Atom Energy Res Inst | 橋かけ構造を有するキチン誘導体及び/又はキトサン誘導体の製造方法 |
-
2004
- 2004-03-31 WO PCT/JP2004/004720 patent/WO2005100468A1/ja not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516879A (ja) * | 1974-07-08 | 1976-01-20 | Sekisui Chemical Co Ltd | Hantoseimakujobutsu |
| JPS57180602A (en) * | 1981-04-30 | 1982-11-06 | Nippon Soda Co Ltd | Production of water-soluble chitosan derivative and film-forming agent comprising same |
| JPS63503149A (ja) * | 1986-04-30 | 1988-11-17 | ウエラ アクチェンゲゼルシャフト | N−ヒドロキシブチルキトサンに基く化粧品、新規なn−ヒドキシブチルキトサンおよびその製造法 |
| JPH0225409A (ja) * | 1988-07-12 | 1990-01-26 | Ichimaru Pharcos Co Ltd | キトサン誘導体配合化粧料 |
| JPH03109310A (ja) * | 1989-09-22 | 1991-05-09 | Ichimaru Pharcos Co Ltd | キトサン誘導体含有化粧料 |
| JPH041139A (ja) * | 1990-04-17 | 1992-01-06 | Nippon Soda Co Ltd | 徐放性薬剤組成物 |
| JPH06172404A (ja) * | 1992-12-07 | 1994-06-21 | Shin Etsu Chem Co Ltd | ヒドロキシプロピルキトサンの製造方法 |
| JPH06340702A (ja) * | 1993-03-27 | 1994-12-13 | Hoechst Ag | 水性媒体中に可溶なn− ヒドロキシアルキルキトサンを製造及び後処理する方法 |
| JP2003160602A (ja) * | 2001-11-28 | 2003-06-03 | Japan Atom Energy Res Inst | 橋かけ構造を有するキチン誘導体及び/又はキトサン誘導体の製造方法 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| De Jong et al. | Physically crosslinked dextran hydrogels by stereocomplex formation of lactic acid oligomers: degradation and protein release behavior | |
| Chandel et al. | Self-assembly of partially alkylated dextran-graft-poly [(2-dimethylamino) ethyl methacrylate] copolymer facilitating hydrophobic/hydrophilic drug delivery and improving conetwork hydrogel properties | |
| Banks et al. | Chemical modification of alginate for controlled oral drug delivery | |
| Wu et al. | A thermo-and pH-sensitive hydrogel composed of quaternized chitosan/glycerophosphate | |
| CN108697805B (zh) | 包含核酸及壳聚糖的温敏性水凝胶组合物 | |
| Omer et al. | Formulation of pH-sensitive aminated chitosan–gelatin crosslinked hydrogel for oral drug delivery | |
| Das et al. | Modified biopolymer-dextrin based crosslinked hydrogels: application in controlled drug delivery | |
| KR20110106440A (ko) | 생체의료 용도를 위한 생분해성 히드로겔의 제법 | |
| JPH06508169A (ja) | ポリアニオン性多糖の非水溶性誘導体 | |
| JPH03502704A (ja) | 水不溶性バイオ適合性ゲルの製造方法 | |
| CN102585303A (zh) | 一种壳聚糖/聚赖氨酸原位凝胶及其制备方法 | |
| Aminabhavi et al. | Production of chitosan-based hydrogels for biomedical applications | |
| US8507563B2 (en) | Pseudo-thermosetting neutralized chitosan composition forming a hydrogel and a process for producing the same | |
| WO2008067655A1 (en) | Biocompatible hydrogel-based scaffolds | |
| CN101066457A (zh) | 一种可注射型温敏性壳聚糖/甲基纤维素凝胶及其制备方法 | |
| EP0486294A2 (en) | Compatible blends containing chitosan | |
| EP2180872B1 (en) | Compositions comprising polysaccharide gums | |
| ES2370093T3 (es) | Procedimiento de preparación de derivados (poli(óxido de etileno) poli(óxido de propileno)) termosensibles, útiles para funcionalizar el quitosano. | |
| Zhang et al. | Biodegradable thermo‐and pH‐responsive hydrogels for oral drug delivery | |
| JP4439221B2 (ja) | 熱可逆ハイドロゲル形成性組成物 | |
| JP2002146100A (ja) | ハイドロゲル用組成物、ハイドロゲル及びその用途 | |
| Giri | Hydrogels based on scleroglucan | |
| JP2005281654A (ja) | 温度応答性組成物およびそのヒドロゲル | |
| WO2005100468A1 (ja) | 温度応答性組成物およびそのヒドロゲル | |
| Torun et al. | Cellulose Derivatives: Chemical Modification and Biomedical Research Applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
| 122 | Ep: pct application non-entry in european phase |



