Tech Briefs Magazine - June 2022 - 39

NEW!
thinner and better-targeted paint application
using significantly fewer materials
than traditional methods. That means
engineers can use cutting-edge materials,
such as nanoparticles and bioactive
ingredients, that would otherwise be too
costly in paints.
Next steps include creating surfaces
that can change their properties or trigger
chemical reactions to create paints
that can sense their environment and
report stimuli to onboard electronics.
For more information, contact Todd Bates at
todd.bates@rutgers.edu; 848-932-0550.
Method Sprays Extremely Thin Wires
on 3D Objects
The plant-based spray could be used in N95 masks and
energy devices.
Rutgers University, New Brunswick, NJ
E
ngineers have invented a way to spray
extremely thin wires made of a plantbased
material that could be used in N95
mask filters, devices that harvest energy
for electricity, and potentially the creation
of human organs. The method involves
spraying methylcellulose, a re newable
plastic material derived from plant cellulose,
on 3D printed and other objects
ranging from electronics to plants.
N95 masks have been in demand as personal
protective equipment during the
COVID-19 pandemic. The spray method
could add another level of capture to
make filters more effective. Electronics
like LEDs and energy harvesters also
could similarly benefit.
Thin wires (nanowires) made of soft
matter have many applications including
the cilia that keep our lungs clean and the
setae (bristly structures) that allow geckos
to grip walls. Such wires have also been
used in small triboelectric energy harvesters,
with future examples possibly including
strips laminated on shoes to charge a
cellphone and a door handle sensor that
turns on an alarm.
While people have known how to create
nanowires since the advent of cotton candy
melt spinners, controlling the process
has always been limited. The barrier has
been the inability to spray instead of spin
such wires. With methylcellulose, the researchers
have created " forests " and foams
of nanowires that can be coated on 3D objects.
They also demonstrated that gold
nanoparticles could be embedded in
wires for optical sensing and coloration.
For more information, contact Todd Bates
at todd.bates@rutgers.edu; 848-932-0550.
- brushed or bldc motors
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See the
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1 cm
1 ┬Ám
(Left) A nanowire forest being sprayed on a miniature tree, with color (purple) arising from embedded
gold nanoparticles. (Right) Electron microscope image of the nanowire/nanoparticle blend.
(Images: (left) Jonathan P. Singer; (right) Lin Lei)
Tech Briefs, June 2022
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Tech Briefs Magazine - June 2022

Table of Contents for the Digital Edition of Tech Briefs Magazine - June 2022

Tech Briefs Magazine - June 2022 - Intro
Tech Briefs Magazine - June 2022 - Sponsor
Tech Briefs Magazine - June 2022 - Band1
Tech Briefs Magazine - June 2022 - Band2
Tech Briefs Magazine - June 2022 - Cov1
Tech Briefs Magazine - June 2022 - Cov2
Tech Briefs Magazine - June 2022 - 1
Tech Briefs Magazine - June 2022 - 2
Tech Briefs Magazine - June 2022 - 3
Tech Briefs Magazine - June 2022 - 4
Tech Briefs Magazine - June 2022 - 5
Tech Briefs Magazine - June 2022 - 6
Tech Briefs Magazine - June 2022 - 7
Tech Briefs Magazine - June 2022 - 8
Tech Briefs Magazine - June 2022 - 9
Tech Briefs Magazine - June 2022 - 10
Tech Briefs Magazine - June 2022 - 11
Tech Briefs Magazine - June 2022 - 12
Tech Briefs Magazine - June 2022 - 13
Tech Briefs Magazine - June 2022 - 14
Tech Briefs Magazine - June 2022 - 15
Tech Briefs Magazine - June 2022 - 16
Tech Briefs Magazine - June 2022 - 17
Tech Briefs Magazine - June 2022 - 18
Tech Briefs Magazine - June 2022 - 19
Tech Briefs Magazine - June 2022 - 20
Tech Briefs Magazine - June 2022 - 21
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Tech Briefs Magazine - June 2022 - 23
Tech Briefs Magazine - June 2022 - 24
Tech Briefs Magazine - June 2022 - 25
Tech Briefs Magazine - June 2022 - 26
Tech Briefs Magazine - June 2022 - 27
Tech Briefs Magazine - June 2022 - 28
Tech Briefs Magazine - June 2022 - 29
Tech Briefs Magazine - June 2022 - 30
Tech Briefs Magazine - June 2022 - 31
Tech Briefs Magazine - June 2022 - 32
Tech Briefs Magazine - June 2022 - 33
Tech Briefs Magazine - June 2022 - 34
Tech Briefs Magazine - June 2022 - 35
Tech Briefs Magazine - June 2022 - 36
Tech Briefs Magazine - June 2022 - 37
Tech Briefs Magazine - June 2022 - 38
Tech Briefs Magazine - June 2022 - 39
Tech Briefs Magazine - June 2022 - 40
Tech Briefs Magazine - June 2022 - 41
Tech Briefs Magazine - June 2022 - 42
Tech Briefs Magazine - June 2022 - 43
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Tech Briefs Magazine - June 2022 - 45
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Tech Briefs Magazine - June 2022 - 48
Tech Briefs Magazine - June 2022 - 49
Tech Briefs Magazine - June 2022 - 50
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Tech Briefs Magazine - June 2022 - 53
Tech Briefs Magazine - June 2022 - 54
Tech Briefs Magazine - June 2022 - 55
Tech Briefs Magazine - June 2022 - 56
Tech Briefs Magazine - June 2022 - Cov3
Tech Briefs Magazine - June 2022 - Cov4
Tech Briefs Magazine - June 2022 - MD-Cov1
Tech Briefs Magazine - June 2022 - MD-Cov2
Tech Briefs Magazine - June 2022 - MD-1
Tech Briefs Magazine - June 2022 - MD-2
Tech Briefs Magazine - June 2022 - MD-3
Tech Briefs Magazine - June 2022 - MD-4
Tech Briefs Magazine - June 2022 - MD-5
Tech Briefs Magazine - June 2022 - MD-6
Tech Briefs Magazine - June 2022 - MD-7
Tech Briefs Magazine - June 2022 - MD-8
Tech Briefs Magazine - June 2022 - MD-9
Tech Briefs Magazine - June 2022 - MD-10
Tech Briefs Magazine - June 2022 - MD-11
Tech Briefs Magazine - June 2022 - MD-12
Tech Briefs Magazine - June 2022 - MD-13
Tech Briefs Magazine - June 2022 - MD-14
Tech Briefs Magazine - June 2022 - MD-15
Tech Briefs Magazine - June 2022 - MD-16
Tech Briefs Magazine - June 2022 - MD-17
Tech Briefs Magazine - June 2022 - MD-18
Tech Briefs Magazine - June 2022 - MD-19
Tech Briefs Magazine - June 2022 - MD-20
Tech Briefs Magazine - June 2022 - MD-21
Tech Briefs Magazine - June 2022 - MD-22
Tech Briefs Magazine - June 2022 - MD-23
Tech Briefs Magazine - June 2022 - MD-24
Tech Briefs Magazine - June 2022 - MD-Cov3
Tech Briefs Magazine - June 2022 - MD-Cov4
Tech Briefs Magazine - June 2022 - Sensor-Cov1
Tech Briefs Magazine - June 2022 - Sensor-Cov2
Tech Briefs Magazine - June 2022 - Sensor-1
Tech Briefs Magazine - June 2022 - Sensor-2
Tech Briefs Magazine - June 2022 - Sensor-3
Tech Briefs Magazine - June 2022 - Sensor-4
Tech Briefs Magazine - June 2022 - Sensor-5
Tech Briefs Magazine - June 2022 - Sensor-6
Tech Briefs Magazine - June 2022 - Sensor-7
Tech Briefs Magazine - June 2022 - Sensor-8
Tech Briefs Magazine - June 2022 - Sensor-9
Tech Briefs Magazine - June 2022 - Sensor-10
Tech Briefs Magazine - June 2022 - Sensor-11
Tech Briefs Magazine - June 2022 - Sensor-12
Tech Briefs Magazine - June 2022 - Sensor-13
Tech Briefs Magazine - June 2022 - Sensor-14
Tech Briefs Magazine - June 2022 - Sensor-15
Tech Briefs Magazine - June 2022 - Sensor-16
Tech Briefs Magazine - June 2022 - Sensor-17
Tech Briefs Magazine - June 2022 - Sensor-18
Tech Briefs Magazine - June 2022 - Sensor-19
Tech Briefs Magazine - June 2022 - Sensor-20
Tech Briefs Magazine - June 2022 - Sensor-21
Tech Briefs Magazine - June 2022 - Sensor-22
Tech Briefs Magazine - June 2022 - Sensor-23
Tech Briefs Magazine - June 2022 - Sensor-24
Tech Briefs Magazine - June 2022 - Sensor-Cov3
Tech Briefs Magazine - June 2022 - Sensor-Cov4
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