BR0105499A - Processo de obtenção de compósitos formados por materiais particulados e ciclodextrinas e/ou dos produtos derivados - Google Patents

Processo de obtenção de compósitos formados por materiais particulados e ciclodextrinas e/ou dos produtos derivados

Info

Publication number
BR0105499A
BR0105499A BR0105499A BR0105499A BR0105499A BR 0105499 A BR0105499 A BR 0105499A BR 0105499 A BR0105499 A BR 0105499A BR 0105499 A BR0105499 A BR 0105499A BR 0105499 A BR0105499 A BR 0105499A
Authority
BR
Brazil
Prior art keywords
magnetic
cyclodextrins
present
composites
obtaining
Prior art date
Application number
BR0105499A
Other languages
English (en)
Other versions
BRPI0105499B1 (pt
BR0105499F1 (pt
BR0105499C1 (pt
Inventor
Ruben Dario Sinisterra Millan
Nelcy Della Santina Mohallem
Alberto Bocanegra Diaz
Original Assignee
Univ Minas Gerais
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 Univ Minas Gerais filed Critical Univ Minas Gerais
Priority to BRC10105499A priority Critical patent/BR0105499F1/pt
Priority to PCT/BR2002/000155 priority patent/WO2003041095A1/en
Publication of BR0105499A publication Critical patent/BR0105499A/pt
Publication of BR0105499C1 publication Critical patent/BR0105499C1/pt
Publication of BRPI0105499B1 publication Critical patent/BRPI0105499B1/pt
Publication of BR0105499F1 publication Critical patent/BR0105499F1/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants
    • 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
    • C08L5/16—Cyclodextrin; Derivatives thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
    • H01F1/0045—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Soft Magnetic Materials (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Hard Magnetic Materials (AREA)
  • Medicinal Preparation (AREA)

Abstract

"PROCESSO DE OBTENçãO DE COMPóSITOS FORMADOS POR MATERIAIS PARTICULADOS E CICLODEXTRINAS E/OU DOS PRODUTOS DERIVADOS". A presente invenção caracteriza-se por um processo de obtenção de compósitos formados por ciclodextrinas e materiais particulados com comportamento magnético e/ou dos produtos derivados. O presente processo caracteriza-se pela mistura de uma solução aquosa de sais metálicos ou ferritas, hidróxido em solução aquosa e ciclodextrina e/ou derivados, que após aquecimento obtém-se um fluido magnético. O fluido magnético obtido não precisa ser filtrado nem centrifugado pois o tamanho das partículas é de tamanho uniforme na faixa dos 150 nm, contendo de 0,1 até 250 mg de Fe/ml, mediante um processo em uma única etapa. Uma característica importante dos compósitos obtidos, na presente invenção, é que ao apresentar magnetização permanente podem ser dirigidos por um campo magnético relativamente fraco de um ímã permanente, sem necessitar dos fortes campos magnéticos que são usados para controlar as partículas superparamagnéticas. Os compósitos na presente invenção caracterizam-se ainda por mostrar propriedades paramagnéticas. Os compósitos formados podem ser usados como adesivos magnéticos, tintas magnéticas, lubrificantes, fluidos magnéticos selantes, dispositivos de gravação magnética, catalisadores, refrigeração magnética, carregadores de fármacos magneticamente dirigidos e matrizes para isolamento biológico magneticamente assistido, entre outras aplicações.
BRC10105499A 2001-11-05 2001-11-05 processo de obtenção de nanocompósitos ferrita/ciclodextrina e uso como dispositivos de descontaminação magneticamente dirigível BR0105499F1 (pt)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRC10105499A BR0105499F1 (pt) 2001-11-05 2001-11-05 processo de obtenção de nanocompósitos ferrita/ciclodextrina e uso como dispositivos de descontaminação magneticamente dirigível
PCT/BR2002/000155 WO2003041095A1 (en) 2001-11-05 2002-11-05 Process of composites preparation between particulate materials and cyclodextrins and/or their derivatives products thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRC10105499A BR0105499F1 (pt) 2001-11-05 2001-11-05 processo de obtenção de nanocompósitos ferrita/ciclodextrina e uso como dispositivos de descontaminação magneticamente dirigível

Publications (4)

Publication Number Publication Date
BR0105499A true BR0105499A (pt) 2004-06-22
BR0105499C1 BR0105499C1 (pt) 2011-12-20
BRPI0105499B1 BRPI0105499B1 (pt) 2016-11-08
BR0105499F1 BR0105499F1 (pt) 2018-01-09

Family

ID=3948116

Family Applications (1)

Application Number Title Priority Date Filing Date
BRC10105499A BR0105499F1 (pt) 2001-11-05 2001-11-05 processo de obtenção de nanocompósitos ferrita/ciclodextrina e uso como dispositivos de descontaminação magneticamente dirigível

Country Status (2)

Country Link
BR (1) BR0105499F1 (pt)
WO (1) WO2003041095A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022622B4 (de) * 2004-05-07 2013-09-12 Robert Bosch Gmbh Magnetsensoranordnung und ein Verfahren zu dessen Herstellung
EP1632503A1 (en) * 2004-06-25 2006-03-08 Sea Marconi Technologies Di Wander Tumiatti S.A.S. Ultrasound-assisted synthesis of cyclodextrin-based nanosponges
CN101579316B (zh) * 2008-05-14 2012-02-29 陕西北美基因股份有限公司 超顺磁性环糊精复合微粒的制备方法
WO2010078675A1 (zh) * 2008-12-30 2010-07-15 陕西北美基因股份有限公司 多糖金磁复合微粒载药体及其制备方法
ITTO20110873A1 (it) * 2011-09-30 2013-03-31 Sea Marconi Technologies Di Vander Tumiatti S A S Uso di nanospogne funzionalizzate per la crescita, la conservazione, la protezione e la disinfezione di organismi vegetali.
CN107399964B (zh) * 2017-08-21 2021-07-20 北矿磁材科技有限公司 一种粘结铁氧体磁粉的制备方法
CN107998102A (zh) * 2017-12-13 2018-05-08 金陵科技学院 一种具有pH和磁双重响应的纳米粒子药物载体及其制备方法
CN108637032B (zh) * 2018-04-18 2021-01-01 苏州启航不锈钢制品有限公司 一种零磁性弹簧精线及其生产加工工艺
CN109568654B (zh) * 2018-12-10 2020-01-10 济宁医学院 负载维甲酸的钆参杂四氧化三铁复合纳米粒子的制备方法
CN112159219A (zh) * 2020-09-29 2021-01-01 成都信息工程大学 掺杂钇的镍锌钴铁氧体及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141738A (en) * 1983-04-15 1992-08-25 Schering Aktiengesellschaft Ultrasonic contrast medium comprising gas bubbles and solid lipophilic surfactant-containing microparticles and use thereof
DE3709851A1 (de) * 1987-03-24 1988-10-06 Silica Gel Gmbh Adsorptions Te Nmr-diagnostische fluessigkeitszusammensetzungen
US5262404A (en) * 1990-02-15 1993-11-16 The Trustees Of The University Of Pennsylvania/Childrens Hospital Corporation Cyclodextrin polymers and cyclodextrins immobilized on a solid surface

Also Published As

Publication number Publication date
BRPI0105499B1 (pt) 2016-11-08
WO2003041095A1 (en) 2003-05-15
BR0105499F1 (pt) 2018-01-09
BR0105499C1 (pt) 2011-12-20

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