Magnetics Business & Technology - September/October 2022 - 9
FEATURE ARTICLE
versions of these materials using superparamagnetic nanoparticle
cores coated with a silica spacer followed by a gold shell. The
optical properties can be tuned by adjusting the overall particle
size or the diameter of the gold shell. The gold surface provides
a useful substrate for functionalization with biological molecules
or other custom surface functionality. The reaction conditions
have been tuned to modify sizes between 100-300 nm.
It has also fabricated magnetic-fluorescent composite particles,
consisting of a magnetic core, silica spacer and fluorescent
quantum dots covalently bound to the silica surface. The quantum
dots are functionalized to allow further coupling of biomolecules
or other molecules.
A wide variety of magnetic nanomaterials can be produced via
the thermal decomposition of organometallic precursors at high
temperature in organic solvents, producing highly monodisperse,
organic-solvent compatible nanoparticles. Iron oxide nanoparticles
coated with oleic acid can range from 4 to 20 nm in diameter
by modifying reaction conditions, and easily dispersed into a
wide variety of organic solvents. The particles can be transferred
into aqueous-compatible solvents by modifying the surface or
by growing a uniform silica coating around the particles. They
can be further customized with surface functionality tailored for
specific applications.
Overall, a wide variety
of magnetic metal ferrite
and alloy nanoparticles
can be produced with
customizable sizes,
shapes and compositions.
The size and ironto-platinum
ratio can
be adjusted to alter the
magnetic and catalytic
properties. Monodisperse
iron platinum
(FePt) nanoparticles
have been fabricated
with diameters of approximately
3 nm.
For more info, see
www.fortislife.com and www.nanocomposix.com.
Monodisperse iron platinum
nanoparticles
Iron okide nanoparticles
Iron oxide nanoparticles with a diameter of ~60 nm have been
fabricated, coated with uniform silica shells and quantum dots
covalently bound for a final particle of ~100 nm. The reaction
conditions can be tuned to modify the size of the core and shell
thickness, and quantum dots with different emission properties
can be substituted to produce samples with tailored fluorescence.
Iron
oxide nanoparticles coated with oleic acid
www.MagneticsMag.com
September/October 2022 * Magnetics Business & Technology 9
https://nanocomposix.com/
http://www.fortislife.com
http://www.itg-electronics.com
http://www.MagneticsMag.com
Magnetics Business & Technology - September/October 2022
Table of Contents for the Digital Edition of Magnetics Business & Technology - September/October 2022
Magnetics Business & Technology - September/October 2022
Editor’s Choice/ Features
Life Magnetics Solves Vaccine Transport without Cold Storage
Fortis Life Sciences a New Force in Magnetic Particles with nanoComposix
Mercedes-Benz Prepares Car Production Network for New Electric Portfolio
Using Magnets to Control Prosthetic Limbs
Research & Development
Product News
Industry News
Events Calendar/ Advertising Index
Visions
Magnetics Business & Technology - September/October 2022 - Magnetics Business & Technology - September/October 2022
Magnetics Business & Technology - September/October 2022 - Cover2
Magnetics Business & Technology - September/October 2022 - 3
Magnetics Business & Technology - September/October 2022 - Editor’s Choice/ Features
Magnetics Business & Technology - September/October 2022 - 5
Magnetics Business & Technology - September/October 2022 - Life Magnetics Solves Vaccine Transport without Cold Storage
Magnetics Business & Technology - September/October 2022 - 7
Magnetics Business & Technology - September/October 2022 - Fortis Life Sciences a New Force in Magnetic Particles with nanoComposix
Magnetics Business & Technology - September/October 2022 - 9
Magnetics Business & Technology - September/October 2022 - 10
Magnetics Business & Technology - September/October 2022 - 11
Magnetics Business & Technology - September/October 2022 - 12
Magnetics Business & Technology - September/October 2022 - 13
Magnetics Business & Technology - September/October 2022 - Mercedes-Benz Prepares Car Production Network for New Electric Portfolio
Magnetics Business & Technology - September/October 2022 - 15
Magnetics Business & Technology - September/October 2022 - 16
Magnetics Business & Technology - September/October 2022 - 17
Magnetics Business & Technology - September/October 2022 - Research & Development
Magnetics Business & Technology - September/October 2022 - 19
Magnetics Business & Technology - September/October 2022 - 20
Magnetics Business & Technology - September/October 2022 - 21
Magnetics Business & Technology - September/October 2022 - 22
Magnetics Business & Technology - September/October 2022 - 23
Magnetics Business & Technology - September/October 2022 - Product News
Magnetics Business & Technology - September/October 2022 - 25
Magnetics Business & Technology - September/October 2022 - 26
Magnetics Business & Technology - September/October 2022 - 27
Magnetics Business & Technology - September/October 2022 - Industry News
Magnetics Business & Technology - September/October 2022 - 29
Magnetics Business & Technology - September/October 2022 - 30
Magnetics Business & Technology - September/October 2022 - 31
Magnetics Business & Technology - September/October 2022 - Events Calendar/ Advertising Index
Magnetics Business & Technology - September/October 2022 - 33
Magnetics Business & Technology - September/October 2022 - Visions
Magnetics Business & Technology - September/October 2022 - Cover3
Magnetics Business & Technology - September/October 2022 - Cover4
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