ATE494309T1 - Zusammensetzung und verfahren um chitosan unter neutralen bedingungen homogen zu modifizieren oder vernetzen - Google Patents

Zusammensetzung und verfahren um chitosan unter neutralen bedingungen homogen zu modifizieren oder vernetzen

Info

Publication number
ATE494309T1
ATE494309T1 AT02779062T AT02779062T ATE494309T1 AT E494309 T1 ATE494309 T1 AT E494309T1 AT 02779062 T AT02779062 T AT 02779062T AT 02779062 T AT02779062 T AT 02779062T AT E494309 T1 ATE494309 T1 AT E494309T1
Authority
AT
Austria
Prior art keywords
chitosan
solution
reagent
homogeneously
weight
Prior art date
Application number
AT02779062T
Other languages
English (en)
Inventor
Abdellatif Chenite
Mohammed Berrada
Cyril Chaput
Fouad Dabbarh
Amine Selmani
Original Assignee
Biosyntech Canada Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Biosyntech Canada Inc filed Critical Biosyntech Canada Inc
Application granted granted Critical
Publication of ATE494309T1 publication Critical patent/ATE494309T1/de

Links

Classifications

    • 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
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
    • A61K9/0024—Solid, semi-solid or solidifying implants, which are implanted or injected in body tissue
    • 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
    • A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
    • A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
    • A61L27/46—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with phosphorus-containing inorganic fillers
    • 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
    • A61L27/52—Hydrogels or hydrocolloids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
    • C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
    • C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dermatology (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Molecular Biology (AREA)
  • Neurosurgery (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Dispersion Chemistry (AREA)
  • Biochemistry (AREA)
  • Biomedical Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Materials For Medical Uses (AREA)
  • Medicinal Preparation (AREA)
AT02779062T 2001-11-15 2002-11-15 Zusammensetzung und verfahren um chitosan unter neutralen bedingungen homogen zu modifizieren oder vernetzen ATE494309T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33141501P 2001-11-15 2001-11-15
PCT/CA2002/001756 WO2003042250A1 (en) 2001-11-15 2002-11-15 Composition and method to homogeneously modify or cross-link chitosan under neutral conditions

Publications (1)

Publication Number Publication Date
ATE494309T1 true ATE494309T1 (de) 2011-01-15

Family

ID=23293865

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02779062T ATE494309T1 (de) 2001-11-15 2002-11-15 Zusammensetzung und verfahren um chitosan unter neutralen bedingungen homogen zu modifizieren oder vernetzen

Country Status (8)

Country Link
US (1) US7098194B2 (de)
EP (1) EP1448607B1 (de)
AT (1) ATE494309T1 (de)
CA (1) CA2467049C (de)
DE (1) DE60238858D1 (de)
DK (1) DK1448607T3 (de)
ES (1) ES2357889T3 (de)
WO (1) WO2003042250A1 (de)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1229940T3 (da) 1999-11-15 2014-08-18 Piramal Healthcare Canada Ltd Temperaturstyret og ph-afhængig selvgelerende, vandig biopolymeropløsning
ATE481110T1 (de) * 2002-07-16 2010-10-15 Biosyntech Canada Inc Zusammensetzung für die herstellung zellkompatibler, injizierbarer, selbstgelierender chitosan lösungen zum einkapseln und verabreichen von lebenden zellen oderbiologisch aktiven faktoren
US7745532B2 (en) * 2002-08-02 2010-06-29 Cambridge Polymer Group, Inc. Systems and methods for controlling and forming polymer gels
US7485670B2 (en) * 2002-08-02 2009-02-03 Cambridge Polymer Group, Inc. Systems and methods for controlling and forming polymer gels
US20050118238A1 (en) * 2003-06-16 2005-06-02 Zhu Yong H. Deployable hemostatic agent
CN1835723B (zh) * 2003-06-16 2011-06-22 洛马林达大学医学中心 可展开的多功能止血剂
GB0329907D0 (en) * 2003-12-23 2004-01-28 Innomed Ltd Compositions
CA2557042C (en) * 2004-02-23 2013-06-25 Loma Linda University Medical Center Hemostatic agent for topical and internal use
US20090076168A1 (en) * 2005-03-04 2009-03-19 Tien Canh Le Amine-based and imine-based polymers, uses and preparation thereof
EP3042930A1 (de) * 2005-10-12 2016-07-13 Thomas Freier Verarbeitung von chitosan und chitosanderivarte
US20070087059A1 (en) * 2005-10-17 2007-04-19 Frank Everaerts Bioactive delivery matrix compositions and methods
EP1945712A4 (de) * 2005-11-04 2013-05-01 Piramal Healthcare Canada Ltd Gelbindung von wässrigen polyelektrolytlösungen durch thermisch induzierte änderungen des ionisationszustands
FR2897775B1 (fr) * 2006-02-24 2013-05-03 Elisabeth Laugier Biomateriau, implant injectable le comprenant, son procede de preparation et ses utilisations
ITMI20061335A1 (it) * 2006-07-10 2008-01-11 Sirc S P A Natural & Dietetic Foods Chitosano reticolato e processo di reticolazione
AU2008214319A1 (en) * 2007-02-06 2008-08-14 Incept, Llc Polymerization with precipitation of proteins for elution in physiological solution
US7776840B2 (en) * 2007-02-21 2010-08-17 Cutanea Life Sciences, Inc. Methods of use of biomaterial and injectable implant containing biomaterial
US8932560B2 (en) 2007-09-04 2015-01-13 University of Maryland, College Parke Advanced functional biocompatible polymeric matrix used as a hemostatic agent and system for damaged tissues and cells
WO2008130590A2 (en) * 2007-04-19 2008-10-30 Surmodics, Inc. Biodegradable matrix materials
EP1992364A1 (de) * 2007-05-16 2008-11-19 Biosuma S.r.l. Phosphierte oder bisphosphonierte und optional vernetzte Derivate carboxylierter Polysaccharide sowie ihre Herstellung und ihre biomedizinischen Verwendungen
KR101610268B1 (ko) 2007-08-28 2016-04-07 애들레이드 리서치 앤드 이노베이션 피티와이 리미티드 외과용 하이드로겔
FR2920777B1 (fr) * 2007-09-11 2009-11-27 Centre Nat Rech Scient Procede de preparation de derives (poly(oxyde d'ethylene) poly(oxyde de propylene) thermosensibles utiles pour fonctionnaliser le chitosane
JP5725862B2 (ja) * 2007-10-30 2015-05-27 ヴィスコゲル アーベーＶｉｓｃｏｇｅｌ Ａｂ キトサン組成物
US9345809B2 (en) 2007-11-28 2016-05-24 Fziomed, Inc. Carboxymethylcellulose polyethylene glycol compositions for medical uses
US20090169639A1 (en) * 2007-12-28 2009-07-02 Boston Scientific Scimed, Inc. Particles for injection and processes for forming the same
JP2011511123A (ja) * 2008-01-31 2011-04-07 ザ プロクター アンド ギャンブル カンパニー キトサンのアセチル化
HRP20190691T1 (hr) 2008-03-27 2019-07-12 Purdue Research Foundation Sintetički peptidoglikani koji vezuju kolagen, priprema, i postupci upotrebe
CN102065849B (zh) * 2008-04-24 2015-04-29 麦德托尼克公司 基于壳聚糖和氧化多糖的保护性凝胶
JP2011518837A (ja) 2008-04-24 2011-06-30 メドトロニック，インコーポレイテッド 再水和可能なチオール化多糖粒子およびスポンジ
WO2009132229A2 (en) 2008-04-24 2009-10-29 Medtronic, Inc. Cold ionizing radiation sterilization
CN102883715B (zh) 2008-04-24 2014-11-12 麦德托尼克公司 包含壳聚糖的保护性组合物
WO2011004399A2 (en) 2009-07-09 2011-01-13 Manoj Vinoy Mojamdar Liquid filmogenic chitosan skin for wound healing and a method for preparation thereof
CA2780898A1 (en) 2009-11-13 2011-05-19 University Of Maryland, College Park Advanced functional biocompatible foam used as a hemostatic agent for compressible and non-compressible acute wounds
EP2504039A4 (de) 2009-11-25 2014-07-02 Univ Loma Linda Med Blutstillender stoff auf chitosanbasis
US8877907B2 (en) * 2010-06-07 2014-11-04 The Johns Hopkins University Molecularly imprinted polymers
EP2688940B1 (de) * 2011-03-24 2017-07-12 Sofradim Production Enzymatisch abbaubare zusammensetzungen
CN102727925B (zh) * 2011-04-02 2014-09-17 佛山市优特医疗科技有限公司 酰化壳聚糖伤口敷料、其制备方法及其应用
EP3208278B1 (de) 2011-05-24 2018-10-31 Symic IP, LLC Hyaluronsäurebindende synthetische peptidoglycane, herstellung und verfahren zur verwendung
US8617519B2 (en) 2011-07-07 2013-12-31 DePuy Synthes Products, LLC Injectable cross-linked hydrogels for biomaterial applications
AU2012313983B2 (en) 2011-09-30 2017-01-19 Sofradim Production Multilayer implants for delivery of therapeutic agents
KR102143252B1 (ko) * 2011-10-11 2020-08-11 백스터 인터내셔널 인코포레이티드 지혈 조성물
WO2013053759A2 (en) * 2011-10-11 2013-04-18 Baxter International Inc. Hemostatic compositions
MX346958B (es) 2011-10-11 2017-04-06 Baxter Int Composición hemostatica.
CN102949754A (zh) * 2012-05-25 2013-03-06 江西圣济药业有限公司 一种宫腔止血防粘连温敏凝胶及其制法
TWI624270B (zh) 2013-01-17 2018-05-21 財團法人工業技術研究院 藥物組合物
WO2014158963A1 (en) * 2013-03-12 2014-10-02 Wellstat Vaccines, Llc Antibodies targeted to fungal cell wall polysaccharides
CA2914610C (en) 2013-03-13 2022-08-02 University Of Maryland Advanced functional biocompatible polymer putty used as a hemostatic agent for treating damaged tissue and cells
EP3569262A1 (de) 2013-03-14 2019-11-20 Tricol Biomedical, Inc. Bioverträgliche und bioabsorbierbare derivatisierte chitosanzusammensetzungen
WO2014144969A1 (en) 2013-03-15 2014-09-18 Purdue Research Foundation Extracellular matrix-binding synthetic peptidoglycans
US9192574B2 (en) 2013-10-24 2015-11-24 Medtronic Xomed, Inc. Chitosan paste wound dressing
US9192692B2 (en) 2013-10-24 2015-11-24 Medtronic Xomed, Inc. Chitosan stenting paste
US9259357B2 (en) 2014-04-16 2016-02-16 Loma Linda University Composition, preparation, and use of chitosan shards for biomedical applications
WO2015164822A1 (en) 2014-04-25 2015-10-29 Purdue Research Foundation Collagen binding synthetic peptidoglycans for treatment of endothelial dysfunction
FR3035327B1 (fr) 2015-04-23 2021-07-02 Cytosial Biomedic Solution aqueuse homogene de chitosane ou derive de chitosane injectable presentant un ph proche du ph physiologique
US10213521B2 (en) 2015-06-11 2019-02-26 Medtronic Xomed, Inc. Useful polysaccharide after radiation sterilization
US10828319B2 (en) 2016-03-18 2020-11-10 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Agriculture And Agri-Food Chitosan hydrogels for accelerating involution and preventing infection of the mammary gland at drying-off
US10576099B2 (en) 2016-10-21 2020-03-03 Covidien Lp Injectable scaffold for treatment of intracranial aneurysms and related technology
FR3057778B1 (fr) 2016-10-25 2020-05-22 Bioxis Pharmaceuticals Nouvelles compositions actives sur les adipocytes
IT201600111352A1 (it) * 2016-11-04 2018-05-04 Univ Campus Bio Medico Di Roma Materiale poroso per l’inclusione di preparati citologici, procedimento per l’ottenimento dello stesso e suo uso
CN106632730B (zh) * 2017-01-06 2019-01-22 浙江医药高等专科学校 一种具有内涵体逃逸功能的壳聚糖衍生物及其制备方法和应用
AU2018298224B2 (en) 2017-07-07 2024-08-15 Symic Ip, Llc Synthetic bioconjugates
CN109529094A (zh) * 2018-11-05 2019-03-29 首都师范大学 一种可促进伤口愈合的高效止血材料及其制备方法
US12357727B2 (en) 2019-01-07 2025-07-15 Regeltec, Inc. Hydrogels and method of making the same
WO2020149756A2 (en) * 2019-01-19 2020-07-23 Qatar Foundation For Education, Science And Community Development Chitosan-based nanocomposite as an antimicrobial agent and corrosion inhibitor
FR3091995B1 (fr) 2019-01-30 2022-11-11 Bioxis Pharmaceuticals Modelage de Gel de Chitosane
EP3722357A1 (de) * 2019-04-10 2020-10-14 Deutsches Zentrum für Luft- und Raumfahrt e.V. Offene poröse chitosanmaterialien mit hydrophilen und/oder hydrophoben funktionalen gruppen
US11305387B2 (en) 2019-11-04 2022-04-19 Covidien Lp Systems and methods for treating aneurysms
CN111499874B (zh) * 2020-01-14 2022-03-15 哈尔滨师范大学 一种巯基化胆固醇修饰的mPEG接枝壳聚糖及其制备方法和应用
CN115996707A (zh) 2020-04-20 2023-04-21 德克萨斯大学系统董事会 生物活性干粉组合物及其制造和使用方法
CN114763543A (zh) * 2021-01-15 2022-07-19 百瑞全球有限公司 膜状固定化细胞、多肽、寡肽或蛋白质及其制备方法
EP4308013A1 (de) 2021-03-16 2024-01-24 Covidien LP Injizierbare biopolymerzusammensetzungen sowie entsprechende systeme und verfahren
CN113294198B (zh) * 2021-05-20 2024-01-23 太原理工大学 一种可溶缓释温敏阻化剂及其制备方法
CN113289588A (zh) * 2021-05-24 2021-08-24 江苏乐尔环境科技股份有限公司 一种壳聚糖改性的重金属螯合剂
CN113797385B (zh) * 2021-08-18 2022-05-24 山东大学 一种壳聚糖/聚乙二醇水凝胶及其制备方法与应用
CN114225098B (zh) * 2021-11-24 2023-04-11 中国科学院理化技术研究所 一种具有抗菌和促进伤口愈合的医用敷料
CN114957711B (zh) * 2022-06-06 2024-06-21 中国医科大学附属盛京医院 一种壳聚糖溶液及壳聚糖温敏凝胶的制备方法
CN117285724B (zh) * 2022-06-16 2024-04-30 上海其胜生物制剂有限公司 一种壳聚糖均相溶液及其制备方法与应用
CN115353184B (zh) * 2022-08-30 2024-01-26 湖南仁和环境股份有限公司 一种表面改性的壳聚糖-琼脂絮凝剂及其制备方法和应用
CN116396414B (zh) * 2023-04-10 2024-08-06 华侨大学 一种壳聚糖基农药增溶剂的制备方法及其增溶方法
CN116791398A (zh) * 2023-08-04 2023-09-22 郑州大学 一种用于纸质保护的cs-pl-fec/芋艿淀粉磷酸酯多功能保护液
CN118755324B (zh) * 2024-07-25 2024-11-29 珠海市澜诺新材料科技有限公司 一种负氧离子净味多功能装饰涂料及制备方法
CN120118431B (zh) * 2025-04-18 2025-10-17 湖北润烨新能源有限公司 一种轻质复合动力电池盖板的制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4424346A (en) * 1981-06-04 1984-01-03 Canadian Patents And Development Ltd. Derivatives of chitins, chitosans and other polysaccharides
US4605623A (en) * 1982-11-08 1986-08-12 Malette William Graham Method of altering growth and development and suppressing contamination microorganisms in cell or tissue culture
JPS624702A (ja) * 1985-06-28 1987-01-10 Lion Corp 水溶性アシル化キトサンの製造方法
IL100096A (en) * 1991-11-20 1996-03-31 Univ Ramot Method for entrapment of active materials in chitosan
US5708152A (en) * 1992-03-27 1998-01-13 Ciba Specialty Chemicals Corporation N-substituted chitosan derivatives in a process for their preparation

Also Published As

Publication number Publication date
US7098194B2 (en) 2006-08-29
EP1448607A1 (de) 2004-08-25
CA2467049C (en) 2011-04-12
CA2467049A1 (en) 2003-05-22
WO2003042250A1 (en) 2003-05-22
EP1448607B1 (de) 2011-01-05
DK1448607T3 (da) 2011-04-26
US20030129730A1 (en) 2003-07-10
ES2357889T3 (es) 2011-05-03
DE60238858D1 (de) 2011-02-17

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