A
eletroquímica,
aliada
a
plataformas
sustentáveis
como
papel
e
celulose
bacteriana,
viabiliza
dispositivos
portáteis,
econômicos
de
fácil
operação.Entretanto,
as
abordagens
convencionais
para
desenvolver
analíticos
eletroquímicos
baseados
em
frequentemente
se
mostram
complexas,
com
baixa
reprodutibilidade
dificuldades
escalonamento.Propomos
aqui
uma
metodologia
inovadora,
prática
única
etapa
geração
grafeno
induzido
por
laser
superfícies
bacteriana.Esta
técnica
elimina
dependência
reagentes
químicos
condições
ambientais
específicas
o
desenvolvimento
sensores
eletroquímicos.O
método
produção,
que
inclui
aplicação
CO2
funcionalização
do
substrato,
foi
otimizado.O
obtido
extensivamente
caracterizado,
destacando-
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 27, 2025
Monitoring
volatile
organic
compounds
(VOCs)
is
crucial
for
ensuring
safety
and
health.
In
this
study,
we
introduce
a
strategy
to
engineer
chromatography-inspired
single-sensor
(CISS)
e-nose
tailored
VOC
monitoring.
This
approach
overcomes
the
limitations
of
traditional
methodologies
conventional
e-noses.
A
hierarchical
porous
multicomponent
aggregate,
named
CuP@G,
was
initially
developed
as
sole
sensor
material.
aggregate
integrates
Cu2+–polydopamine
(CuP)
network
with
reduced
graphene
oxide,
enhancing
its
chemoresistive
properties.
Using
laser
processing,
fabricated
grooved
laser-induced
interdigitated
electrode
that
loaded
CuP@G
ink
subsequently
integrated
into
compact
laser-engraved
microchamber.
process
results
in
production
CISS
e-nose.
Notably,
enables
swift,
reversible,
precise
detection
various
VOCs
using
time-space-resolved
methodology.
The
module,
known
affordability
portability,
especially
suitable
point-of-care
testing
(POCT)
VOCs.
Consequently,
our
research
advances
development
streamlined
cost-effective
e-noses
are
essential
proficient
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 29, 2025
The
study
introduces
a
spatiotemporal
chromatography-mimicking
(SCM)
e-nose
that
integrates
laser-tailored
graphene
paper
with
microchamber
for
precise
volatile
organic
compound
(VOC)
discrimination.
SCM
overcomes
traditional
array
limitations
single
multifunctional
component
capable
of
accurate
VOC
differentiation
via
chromatography-mimic
features.
Advanced
laser-engraving
techniques
fabricate
gas-permeable
interdigitated
electrode
from
as
the
sieving
framework.
Key
achievements
include
its
component,
economical
and
scalable
design,
distinct
response
patterns
different
VOCs,
remarkable
ability
to
discriminate
mixed
versatility
diverse
applications
including
real-time
on-site
analysis,
ease
integration
electronic
systems.
represents
significant
advancement
in
nose
technology,
offering
compact,
cost-effective
solution
detection
analysis.
Small Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 8, 2025
Abstract
Currently,
the
identification
of
organics,
including
gases,
liquids,
and
isomers,
relies
heavily
on
sophisticated
analytical
equipment
or
meticulously
crafted
yet
costly
materials
such
as
COFs
MOFs.
Consequently,
developing
a
straightforward
strategy
to
accurately
identify
organic
isomers
simultaneously
presents
significant
challenge.
Inspired
by
porous
structure
sponge
that
allows
it
absorb
multiple
liquids
quickly,
broad‐spectrum
micro‐nano
porous‐structure
sensor
(BPS)
is
designed
using
polydimethylsiloxane
(PDMS),
highly
conductive
nanoparticle
carbon
black
(CB)
micron‐sized
thermal
expansion
microspheres
(EM),
which
utilizes
enhance
unique
swelling
interaction
between
PDMS
various
compounds,
gas/liquids,
aqueous
solutions,
mixed
even
perform
quantitative
analysis.
There
are
no
reports
sensors,
BPS,
capable
detecting
types
matter.
The
BPS
also
demonstrates
robust
performance,
retaining
its
self‐cleaning
property
after
soaking
in
water,
acids,
alkalis.
wide
spectrum
high
sensitivity
identifying
volatile
molecules
make
have
great
potential
chemical
industry,
coal,
transportation,
other
fields.
