Ultra-Sensitive, On-Site Pesticide Detection for Environmental and Food Safety Monitoring using Flexible Cellulose Nano Fiber/Au Nanorod@Ag SERS Sensor
Journal of Hazardous Materials,
Год журнала:
2025,
Номер
487, С. 137197 - 137197
Опубликована: Янв. 13, 2025
This
paper
introduces
a
highly
absorbent
and
sensitive
cellulose
nanofiber
(CNF)/gold
nanorod
(GNR)@Ag
surface-enhanced
Raman
scattering
(SERS)
sensor,
fabricated
using
the
vacuum
filtration
method.
By
optimizing
Ag
thickness
in
GNR@Ag
core-shell
structures
integrating
them
with
CNFs,
optimal
SERS
hotspots
were
identified
probe
molecule
4-aminothiophenol
(4-ATP).
To
concentrate
pesticides
extracted
from
fruit
vegetable
surfaces,
we
utilized
evaporation
enrichment
effect
hydrophilic
CNF
hole-punched
hydrophobic
polydimethylsiloxane
(PDMS).
design
leverages
substrate
localized
to
create
microfluidic
flow
that
concentrates
analytes
within
small
hole
area,
enhancing
sensitivity
by
up
465
%.
The
sensor
achieved
on-site
detection
limits
for
Thiram
as
low
10-11
M
on
specifically
apples
chili
peppers.
approach
underscores
how
can
substantially
improve
field-based
pesticide
analysis.
sensor's
response
interfering
substances
(e.g.,
glucose
citric
acid)
other
harmful
molecules
carbendazim
nitrofurazone
was
also
evaluated,
demonstrating
high
accuracy).
PDMS-assisted
CNF/GNR@Ag
exhibits
flexibility,
ease
of
fabrication,
excellent
selectivity,
showing
significant
potential
applications
food
safety,
agriculture,
environmental
monitoring.
These
advancements
are
anticipated
promote
practical
adoption
SERS-based
technology
across
diverse
fields,
suggesting
broad
future
utility.
Язык: Английский
Crosslinking/Spinning Strategies of Nanocellulose Enhances the Performances for Self-Powered Wearable Sensors
Xinke Yu,
Huancheng Huang,
P.G. Zhang
и другие.
Nano Energy,
Год журнала:
2025,
Номер
unknown, С. 110649 - 110649
Опубликована: Янв. 1, 2025
Язык: Английский
Biomimetic Gradient Aerogel Fibers for Sustainable Energy Harvesting from Human Sweat via the Hydrovoltaic Effect
Nano Energy,
Год журнала:
2025,
Номер
136, С. 110759 - 110759
Опубликована: Фев. 7, 2025
Язык: Английский
Synergistic Photoelectric/Photothermal Effects Guided Ion Transport for Enhancing Multiple Climatic Osmotic Energy Conversion Efficiency
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 16, 2025
Abstract
Osmotic
energy,
also
called
blue
promotes
sustainable
energy
development.
Nanofluidic
membranes
constructed
from
various
nanomaterials
applied
in
reverse
electrodialysis
play
an
important
role
enhancing
the
effective
osmotic
conversion.
The
fabrication
of
g‐C
3
N
4
modified
MXene/regenerated
cellulose
composite
nanofluidic
is
developed.
Optimization
advanced
membrane
structure
not
only
designed
a
well‐ordered
layer
arrangement
resulting
low
impedance
but
enabled
photoelectric/photothermal
guided
ion
transport
to
promote
photoelectric
effect
promoted
separation
electrons
and
holes
between
MXene
form
local
electric
field,
causing
output
current
thenanofluidic
membrane‐based
jump
sharply
17
µA
peak
28
(no
light
light)
increasing
power
density
0.9
W
m
−2
4.3
.
After
1200
s
illumination,
channel
created
inhomogeneous
temperature
gradient
that
triggered
driven
by
thermal
osmosis
through
photothermal
effect,
excellent
5.9
Photoelectric/photothermal
enhanced
harvesting
over
multiple
climate
changes.
Thus,
this
work
expands
way
enhance
conversion
into
electrical
energy.
Язык: Английский