Current
toxic
gas
detection
methods
in
industrial
and
environmental
settings
are
limited
by
their
reliance
on
manual
monitoring
stationary
sensors.
Here,
we
present
an
autonomous
mobile
sensing
system
offering
real-time
precise
source
localization
without
the
need
for
human
intervention.
Room-temperature
sensors
based
high
specific
surface
area
indium
gallium
zinc
oxide
nanofibers
(IGZO
NFs)
developed,
which
exhibit
low
power
consumption
(∼0.5
mW),
exceptional
sensitivity
(∼1290%
ppb-1),
a
limit
of
20
ppb
NO2.
When
integrated
into
platform
supported
adaptive
biologically
inspired
algorithms,
exhibits
efficiency
∼1.5
m
min-1,
remote,
scalable,
efficient
solution
detecting
localizing
leaks.
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.
Frontiers in Chemistry,
Год журнала:
2025,
Номер
12
Опубликована: Янв. 10, 2025
Gas
sensors
are
now
widely
employed
in
many
industries
due
to
the
rapid
speed
of
industrialization
and
growth
Internet
Things.
However,
wearability
mobility
traditional
gas
limited
by
their
high
reliance
on
external
power
sources.
Nanogenerators
(NGs)
can
compensate
for
source
limitations
when
paired
with
transforming
environment's
dispersed
low-frequency
energy
into
electrical
energy,
allowing
self-powered
detection.
The
paper
thoroughly
examines
advancements
made
field
NG-based
sensor
research
recent
years.
A
systematic
description
is
given
two
main
types
sensors.
Lastly,
evolution
use
a
few
typical
sensing
applications
highlighted,
field's
future
development
trend
anticipated.
New Journal of Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Flexible
pressure
sensors
are
fabricated
using
carbonized
electrospun
polyacrylonitrile
(PAN)
fiber
films
embedded
with
ZIF-67
nanoparticles.
With
a
broad
operating
range
and
high
sensitivity,
the
can
detect
various
human
motion
signals.
Acetic
acid
is
among
the
most
common
and
damaging
airborne
contaminants.
Exposure
to
acetic
gas
can
irritate
nose
throat,
which
may
harm
human
health.
In
light
of
increasing
use
in
industry,
there
a
critical
need
for
an
detection
device
that
operate
real
time
with
excellent
performance.
This
study
developed
sensor
using
quartz
crystal
microbalance
(QCM)
deposited
polyvinylpyrrolidone
(PVP)
microfiber
by
well-recognized
electrospinning
method.
Scanning
electron
microscopy
(SEM)
Fourier-transform
infrared
(FTIR)
spectroscopy
were
employed
observe
morphology
chemical
composition
fabricated
microfibers.
The
obtained
has
high
sensitivity
(4.144
±
0.039)
Hz·ppm–1
low
limit
rapid
response
recovery
times
75
66
s,
respectively.
addition,
also
exhibits
good
performance
as
well
repeatability
long-term
stability.
Selectivity
tests
conducted
various
analytes
exhibited
selectivity
toward
acid.
These
advancements
demonstrate
PVP
active
layers
not
only
address
challenges
enhancing
but
provide
unique
mechanism
molecules.
However,
advanced
future
research
must
still
be
improve
reversibility,
making
more
suitable
applications
environment.
