Nano-Micro Letters,
Год журнала:
2024,
Номер
17(1)
Опубликована: Дек. 26, 2024
Abstract
Chloroform
and
other
volatile
organic
pollutants
have
garnered
widespread
attention
from
the
public
researchers,
because
of
their
potential
harm
to
respiratory
system,
nervous
skin,
eyes.
However,
research
on
chloroform
vapor
sensing
is
still
in
its
early
stages,
primarily
due
lack
specific
recognition
motif.
Here
we
report
a
mesoporous
photonic
crystal
sensor
incorporating
carbon
dots-based
nanoreceptor
(HMSS@CDs-PCs)
for
enhanced
sensing.
The
colloidal
PC
packed
with
hollow
silica
spheres
provides
an
interconnected
ordered
macro-meso-hierarchical
porous
structure,
ideal
rapid
gas
utilizing
bandgap
shift
as
readout
signal.
as-synthesized
CDs
pyridinic-N-oxide
functional
groups
adsorbed
are
found
not
only
serve
adsorption
sites,
but
also
molecular
glue
that
prevents
crack
formation
PC.
sensitivity
HMSS@CDs-PCs
0.79
nm
ppm
−1
impressively
low
limit
detection
3.22
ppm,
which
best
reported
values
fast-response
without
multi-signal
assistance.
positive
response
time
7.5
s
negative
9
s.
Furthermore,
relatively
stable
can
be
maintained
within
relative
humidity
20%–85%RH
temperature
25–55
°C.
This
study
demonstrates
sensors
practical
application
indoor
outdoor
detection.
Nano Letters,
Год журнала:
2024,
Номер
24(12), С. 3826 - 3834
Опубликована: Март 18, 2024
Lightweight,
easily
processed,
and
durable
polymeric
materials
play
a
crucial
role
in
wearable
sensor
devices.
However,
achieving
simultaneously
high
strength
toughness
remains
challenge.
This
study
addresses
this
by
utilizing
an
ion-specific
effect
to
control
crystalline
domains,
enabling
the
fabrication
of
triboelectric
material
with
tunable
mechanical
properties.
The
dense
crystal-domain
cross-linking
enhances
energy
dissipation,
resulting
boasting
both
tensile
(58.0
MPa)
(198.8
MJ
m–3),
alongside
remarkable
416.7%
fracture
elongation
545.0
MPa
modulus.
Leveraging
these
properties,
is
successfully
integrated
into
self-powered
devices,
real-time
feedback
on
human
joint
movement.
work
presents
valuable
strategy
for
overcoming
strength-toughness
trade-off
materials,
paving
way
their
enhanced
applicability
broader
use
diverse
sensing
applications.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Май 31, 2024
Abstract
The
rapid
development
of
the
Internet
Things
and
artificial
intelligence
technologies
has
increased
need
for
wearable,
portable,
self-powered
flexible
sensing
devices.
Triboelectric
nanogenerators
(TENGs)
based
on
gel
materials
(with
excellent
conductivity,
mechanical
tunability,
environmental
adaptability,
biocompatibility)
are
considered
an
advanced
approach
developing
a
new
generation
sensors.
This
review
comprehensively
summarizes
recent
advances
in
gel-based
TENGs
sensors,
covering
their
principles,
properties,
applications.
Based
requirements
working
mechanism
characteristic
advantages
gels
introduced.
Design
strategies
performance
optimization
hydrogel-,
organogel-,
aerogel-based
systematically
summarized.
In
addition,
applications
human
motion
sensing,
tactile
health
monitoring,
human–machine
interaction,
other
related
fields
Finally,
challenges
discussed,
feasible
proposed
to
guide
future
research.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(34)
Опубликована: Апрель 13, 2024
Abstract
Non‐contact
intelligent
sensing
technology
is
a
key
player
in
the
data
acquisition
and
environmental
monitoring
framework
of
Internet
Everything,
laying
groundwork
for
realization
highly
integrated
network
systems.
However,
factors
continue
to
be
major
challenge
process
real‐time
feedback
objects,
constraining
stability
accuracy
signals.
In
this
study,
hierarchical
spatial
assembly
strategy
implemented
effectively
integrate
an
intermediate
energy
storage
layer
with
superhydrophobic
surfaces
(CA
=
162
±
2.5°),
resulting
development
moisture‐resistant
triboelectric
structural
materials
stable
tracking
capabilities.
The
self‐powered
sensor
constructed
from
material
operates
extreme
humidity
conditions
(99%
RH)
full‐scale
output
retention
rate
95.2%,
capable
accurately
human
activity
distance
3
m.
Importantly,
can
also
detect
vehicle
states
during
operation
perform
vehicle's
surrounding
environment.
This
study
not
only
overcomes
long‐standing
challenges
high
sensors
but
advances
sustainable,
interconnected
systems
Everything
conditions.
Abstract
With
the
continuous
acceleration
of
industrialization,
gas
sensors
are
evolving
to
become
portable,
wearable
and
environmentally
friendly.
However,
traditional
rely
on
external
power
supply,
which
severely
limits
their
applications
in
various
industries.
As
an
innovative
adaptable
generation
technology,
triboelectric
nanogenerators
(TENGs)
can
be
integrated
with
leverage
benefits
both
technologies
for
efficient
friendly
self‐powered
sensing.
This
paper
delves
into
basic
principles
current
research
frontiers
TENG‐based
sensor,
focusing
particularly
environmental
safety
monitoring,
healthcare,
as
well
emerging
fields
such
food
assurance
smart
agriculture.
It
emphasizes
significant
advantages
sensor
systems
promoting
sustainability,
achieving
sensing
at
room
temperature,
driving
technological
innovations
devices.
also
objectively
analyzes
technical
challenges,
including
issues
related
performance
enhancement,
theoretical
refinement,
application
expansion,
provides
targeted
strategies
future
directions
aimed
paving
way
progress
widespread
field
sensors.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(32)
Опубликована: Апрель 18, 2024
Abstract
Bubble
status
monitoring
is
essential
for
designing
material
nanostructures
and
optimizing
industrial
processes.
However,
tracking
the
fluid
dynamics
of
bubbles
challenging
due
to
their
random
distribution
irregular
dynamic
changes.
In
this
study,
a
tube
liquid–solid
triboelectric
nanogenerator
serves
as
probe
investigate
at
interface.
The
study
explores
impact
bubble
on
contact
electrification,
examining
variables
such
flow
rates,
volumes,
release
intervals
bubbles.
demonstrates
that
can
work
non‐intrusive
self‐powered
sensor
states
in
chemical
control.
exhibits
sensitivity
13.2
V·cm
−3
,
signal‐bubble
volume
correlation
coefficient
0.9964,
rapid
response
time
0.15
s.
sensor,
integrated
with
wireless
module,
enables
continuous
remote
detection.
This
provides
valuable
tool
investigating
tri‐phase
electrification
presents
promising
technology
state
monitoring.
