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WO2011061701A3 - Chemical suspension sensitive to temperature variations and method for the obtainment thereof - Google Patents

Chemical suspension sensitive to temperature variations and method for the obtainment thereof Download PDF

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Publication number
WO2011061701A3
WO2011061701A3 PCT/IB2010/055254 IB2010055254W WO2011061701A3 WO 2011061701 A3 WO2011061701 A3 WO 2011061701A3 IB 2010055254 W IB2010055254 W IB 2010055254W WO 2011061701 A3 WO2011061701 A3 WO 2011061701A3
Authority
WO
WIPO (PCT)
Prior art keywords
particles
solvent
temperature variations
suspension
obtainment
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
Application number
PCT/IB2010/055254
Other languages
French (fr)
Other versions
WO2011061701A2 (en
Inventor
Marco Mandelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2011061701A2 publication Critical patent/WO2011061701A2/en
Publication of WO2011061701A3 publication Critical patent/WO2011061701A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/0063—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use in a non-magnetic matrix, e.g. granular solids
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G01K11/14—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of inorganic materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
    • G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time
    • 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
    • H01F1/0054—Coated nanoparticles, e.g. nanoparticles coated with organic surfactant

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Treatment Devices (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)

Abstract

The present invention relates to a suspension including: - 3% to 12%: a plurality of particles of SSD type that are magnetizable by means of application of a magnetic field thereto and demagnetizable mainly due to Brownian motions, such that said chemical suspension results sensitive to temperature variations, the particles being selected from the groups constituted by magnetite, substituted magnetite and/or ferrite; - 15% to 25%: a polar polymer component selected from the group constituted by polyvinylpyrrolidone and/or polystyrene copolymer; and - at least one polar solvent selected from the group constituted by alcohol having a number of carbon atoms comprised between C7 and C16, said particles being stably embedded in said at least one solvent, whereas said polar polymer component is configured as a net or mesh being extended in said solvent and engaging said particles, so as to prevent the aggregation thereof, said suspension having a freezing temperature in the range of -18°C to 12°C.
PCT/IB2010/055254 2009-11-19 2010-11-18 Chemical suspension sensitive to temperature variations and method for obtainment thereof Ceased WO2011061701A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVR2009A000197 2009-11-19
IT000197A ITVR20090197A1 (en) 2009-11-19 2009-11-19 CHEMICAL COMPOSITION SENSITIVE TO TEMPERATURE VARIATIONS AND METHOD FOR ITS REALIZATION

Publications (2)

Publication Number Publication Date
WO2011061701A2 WO2011061701A2 (en) 2011-05-26
WO2011061701A3 true WO2011061701A3 (en) 2011-08-11

Family

ID=42229280

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/055254 Ceased WO2011061701A2 (en) 2009-11-19 2010-11-18 Chemical suspension sensitive to temperature variations and method for obtainment thereof

Country Status (2)

Country Link
IT (1) ITVR20090197A1 (en)
WO (1) WO2011061701A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20120168A1 (en) * 2012-08-10 2014-02-11 Marco Mandelli CHEMICAL COMPOSITION SENSITIVE TO TEMPERATURE CHANGES AND PRODUCTION METHOD AND USE OF THE SAME.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015666A1 (en) * 1989-06-16 1990-12-27 Omni Quest Corporation Coated magnetic particles for use in separations
DE10301107A1 (en) * 2003-01-10 2004-08-19 Berlin Heart Ag Magnetic ink for ink-jet printers, comprises highly anisotropic ferrite particle coated with water-soluble organic compounds such as acids and electrolyte that are soluble in organic compounds miscible with water
WO2006057467A1 (en) * 2004-11-26 2006-06-01 Seoul National University Industry Foundation Method for large-scale production of monodisperse nanoparticles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015666A1 (en) * 1989-06-16 1990-12-27 Omni Quest Corporation Coated magnetic particles for use in separations
DE10301107A1 (en) * 2003-01-10 2004-08-19 Berlin Heart Ag Magnetic ink for ink-jet printers, comprises highly anisotropic ferrite particle coated with water-soluble organic compounds such as acids and electrolyte that are soluble in organic compounds miscible with water
WO2006057467A1 (en) * 2004-11-26 2006-06-01 Seoul National University Industry Foundation Method for large-scale production of monodisperse nanoparticles

Also Published As

Publication number Publication date
ITVR20090197A1 (en) 2011-05-20
WO2011061701A2 (en) 2011-05-26

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