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0:00
Hello, my name is
Eva Rose Balog,
and I am an Associate
Professor of
Chemistry at the
University of New England.
Today I will be telling
you about methods
of particle characterization
and sizing.
0:14
In this talk, I'll start by
discussing the significance
and practical applications of
particle characterization.
I'll lay out our
lecture objectives,
focus on the basics
of particles,
dive into types of particles,
and explore size, definitions
and distributions.
We'll survey selected
common techniques
for particle characterization.
While we don't have time to do
a deep dive into each
of these techniques,
please know that each of them is
theoretically and
technically very
interesting and their
physical principles
are very fun to learn about.
But we'll focus more
on applications.
Then we'll consider some
questions and challenges.
Look at recent advances
and future trends.
Finally, we'll wrap up with
some key conclusions
of the lecture.
0:60
Let's start by defining
what we mean by a particle.
One theoretical definition is
a bounded region of space with
distinct physical or
optical properties
compared to its
surrounding medium.
In practical terms, a
particle is a small,
distinguishable entity
within a sample,
something we can isolate,
measure, and characterize
independently.
1:25
In nanotechnology,
bioscience, and
pharmaceutical science,
the particles under
study usually
range from individual
biomolecules at
the nanoscale to
vesicle-like assemblies
or individual cells or
compartments at the
micrometer scale.
People studying natural
particulate materials
like soil or dust,
or air pollution in
the geosciences or
industrial materials
like cement or
advanced rubbers might
deal with larger particles
in the millimeter range.
But this talk will
mostly discuss particles
that are in the microscopic
or subvisible range,
Which includes
nanomaterials like
liposomes and
polymeric assemblies.
