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 PDFInfo
- 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
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
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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000197A ITVR20090197A1 (en) | 2009-11-19 | 2009-11-19 | CHEMICAL COMPOSITION SENSITIVE TO TEMPERATURE VARIATIONS AND METHOD FOR ITS REALIZATION |
ITVR2009A000197 | 2009-11-19 |
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 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)
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)
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 |
-
2009
- 2009-11-19 IT IT000197A patent/ITVR20090197A1/en unknown
-
2010
- 2010-11-18 WO PCT/IB2010/055254 patent/WO2011061701A2/en active Application Filing
Patent Citations (3)
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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