Tech Briefs Magazine - December 2021 - MD-18

the difficulty involved in being
able to observe and understand
the 3D movement of these tiny
particles deep within a material
comprising complex interconnected
spaces.
1 µm
Left: A schematic diagram showing the observation of particles moving through a generic porous material. Right: A representative
scanning electron microscopy image of inverse opals, the porous medium used in this research. Large circular patterns
indicate the close packed cavities and small elliptical patterns indicate the holes connecting adjacent cavities. Every cavity
was connected to its adjacent cavities through twelve holes. (Credit: Haichao Wu)
spaces as microscopic as human tissue
to carry cargo and deliver drugs as
well as through soil underground or
beaches of sand to remove unwanted
pollutants.
The next step is to understand how
nanoswimmers behave in groups within
confined environments or in combination
with passive particles. One of the
main obstacles to reaching this goal is
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This hurdle was overcome by
using refractive index liquid in
the porous medium - liquid
that affects how fast light travels
through a material. This made
the maze essentially invisible,
while allowing the observation
of 3D particle motion using a
technique known as double-helix
point spread function microscopy.
This enabled the team to
track three-dimensional trajectories
of the particles and create
visual representations, without
which it would not be possible
to better understand the movement
and behavior of either individuals
or groups of nanoswimmers.
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303-735-0122.
Please visit www.techbriefs.com/webinar222
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Tech Briefs Magazine - December 2021

Table of Contents for the Digital Edition of Tech Briefs Magazine - December 2021

Tech Briefs Magazine - December 2021 - Intro
Tech Briefs Magazine - December 2021 - Sponsor
Tech Briefs Magazine - December 2021 - Cov1
Tech Briefs Magazine - December 2021 - Cov2
Tech Briefs Magazine - December 2021 - 1
Tech Briefs Magazine - December 2021 - 2
Tech Briefs Magazine - December 2021 - 3
Tech Briefs Magazine - December 2021 - 4
Tech Briefs Magazine - December 2021 - 5
Tech Briefs Magazine - December 2021 - 6
Tech Briefs Magazine - December 2021 - 7
Tech Briefs Magazine - December 2021 - 8
Tech Briefs Magazine - December 2021 - 9
Tech Briefs Magazine - December 2021 - 10
Tech Briefs Magazine - December 2021 - 11
Tech Briefs Magazine - December 2021 - 12
Tech Briefs Magazine - December 2021 - 13
Tech Briefs Magazine - December 2021 - 14
Tech Briefs Magazine - December 2021 - 15
Tech Briefs Magazine - December 2021 - 16
Tech Briefs Magazine - December 2021 - 17
Tech Briefs Magazine - December 2021 - 18
Tech Briefs Magazine - December 2021 - 19
Tech Briefs Magazine - December 2021 - 20
Tech Briefs Magazine - December 2021 - 21
Tech Briefs Magazine - December 2021 - 22
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Tech Briefs Magazine - December 2021 - 28
Tech Briefs Magazine - December 2021 - 29
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Tech Briefs Magazine - December 2021 - 31
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Tech Briefs Magazine - December 2021 - 33
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Tech Briefs Magazine - December 2021 - 43
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Tech Briefs Magazine - December 2021 - 45
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Tech Briefs Magazine - December 2021 - 51
Tech Briefs Magazine - December 2021 - 52
Tech Briefs Magazine - December 2021 - Cov3
Tech Briefs Magazine - December 2021 - Cov4
Tech Briefs Magazine - December 2021 - MD-Cov1
Tech Briefs Magazine - December 2021 - MD-Cov2
Tech Briefs Magazine - December 2021 - MD-1
Tech Briefs Magazine - December 2021 - MD-2
Tech Briefs Magazine - December 2021 - MD-3
Tech Briefs Magazine - December 2021 - MD-4
Tech Briefs Magazine - December 2021 - MD-5
Tech Briefs Magazine - December 2021 - MD-6
Tech Briefs Magazine - December 2021 - MD-7
Tech Briefs Magazine - December 2021 - MD-8
Tech Briefs Magazine - December 2021 - MD-9
Tech Briefs Magazine - December 2021 - MD-10
Tech Briefs Magazine - December 2021 - MD-11
Tech Briefs Magazine - December 2021 - MD-12
Tech Briefs Magazine - December 2021 - MD-13
Tech Briefs Magazine - December 2021 - MD-14
Tech Briefs Magazine - December 2021 - MD-15
Tech Briefs Magazine - December 2021 - MD-16
Tech Briefs Magazine - December 2021 - MD-17
Tech Briefs Magazine - December 2021 - MD-18
Tech Briefs Magazine - December 2021 - MD-19
Tech Briefs Magazine - December 2021 - MD-20
Tech Briefs Magazine - December 2021 - MD-21
Tech Briefs Magazine - December 2021 - MD-Cov3
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