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Printable Handouts
Navigable Slide Index
- Introduction
- Agenda
- Introduction to flow cytometry
- The flowcell and hydrodynamic focusing
- Signal processing pipeline
- Fundamental principles: hydrodynamic focusing
- Fluorescence excitation and detection
- Fundmental principles: photon shot noise
- Fundamental principles: putting it together
- A system with twice the sheath pressure
- Splitting one laser into multiple channels
- Fundamental principles: polychromatic or spectral? (1)
- Fundamental principles: polychromatic or spectral? (2)
- Fundamental principles: polychromatic or spectral? (3)
- Practical consquences: virtual experiment (1)
- Practical consquences: virtual experiment (2)
- Practical consquences: virtual experiment (3)
- Practical consequences: will spectral help?
- Practical consequences: optimize panel
- Practical consequences: virtual experiment II (1)
- Practical consequences: virtual experiment II (2)
- Practical consequences to best practice
- Conclusion
- Thank you
- References
Topics Covered
- Polychromatic flow cytometry
- Spectral flow cytometry
- Fundamental principles of flow cytometry
- Practical consequences of flow cytometry
- Flow cytometry best practices
- Hydrodynamic focusing
- Photon statistics
- Spillover spreading
Talk Citation
Buescher, M. (2022, September 29). Flow cytometry: polychromatic or spectral? [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved November 5, 2024, from https://doi.org/10.69645/MDWL4201.Export Citation (RIS)
Publication History
Financial Disclosures
- Dr. Martin Buescher has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.
A selection of talks on Pharmaceutical Sciences
Transcript
Please wait while the transcript is being prepared...
0:00
Hello. Today we are talking
about flow cytometry in general,
but more specifically on
systematic differences
between polychromatic
flow cytometry
and spectral flow cytometry,
which has been a
recent development.
My name is Martin Buescher.
I'm a physicist by training,
but I got my PhD in
Applied biotechnology.
I'm running the
BioPhysics group within
the Miltenyi company
that manufacturers
flow cytometry devices
and many other tools and
systems around immunology
and science in general.
0:36
First, I will briefly
introduce flow cytometry from
a historical point of view.
After that's done, I'm
going to talk about
the fundamental principles
that make up flow cytometry.
From there, some practical
consequences are
derived that play a role in
the use of flow cytometry.
From there, we're
going to discuss some
practical consequences in
real-life experiments,
and from that, we'll
deduce best practices
in daily work with
those devices.
Then we are almost through and
doing some final conclusions.
1:11
Introduction to flow cytometry.
Flow cytometry was invented
in the last century, in the 60s,
mainly by Wolfgang Dittrich
and Wolfgang Gohde.
They published a
paper on impulse
fluorometry of single
cells in suspension,
where they used
the light source,
excited fluorescence, and worked
out the fundamental
principle of flow cytometry,
which I'm going to talk
about in a minute.
Then in the 70s,
this whole technology had
developed quite a bit
further and spear-headed
by Leonard Herzenberg.
They not only introduced
cell sorting,
and patented the
technology by that,
they also developed
the systems further
so that they could be
used in routine labs.
Then in the 80s, starting
then until today,
the systems have developed
further and further
and got more complex with
more channels and are faster.
Some bigger examples are
publications from the mid-80s,
where they did 8-color, 10-parameter
flow cytometry experiments.
By that, they could preserve
a very different
differentiated image
of leukocyte heterogeneity
in the blood.
After that, things have
developed further.
Around the millennium,
17-color flow
cytometry experiments
have been conducted.
More or less, the
whole immune system,
as it is known today,
has been unraveled.
Now the question is
how to move from there
and how to expand it further.
This is probably with
spectral flow cytometry.