Customizable Twisted Nanofluidic Cellulose Fibers by Asymmetric Microfluidics for Self‐Powered Urine Monitoring
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 4, 2024
Abstract
The
unique
selective
ion‐transport
characteristics
of
nanofluids
make
them
applicable
in
energy
harvesting
and
sensing.
However,
developing
scalable,
self‐powered
nanofluidic
devices
remains
challenging
due
to
high
cost,
processing
complexity,
reliance
on
external
power
sources.
In
this
work,
surface‐twisted,
internally
aligned
algae
fibers
(twisted
fibers)
are
fabricated
using
an
asymmetric
flow
field
regulate
the
assembly
process
cellulose
nanofibers.
Unlike
from
symmetrical
process,
flow‐mediated
twisted
exhibit
a
significantly
reduced
diameter
(33.6–20.4
µm),
increased
packing
density
(0.87–1.47
g
cm
−3
),
superior
fractured
stress
(249.4–468.5
MPa),
enhanced
Herman's
orientation
parameter
(from
0.77
0.89).
Importantly,
demonstrate
energy‐harvesting
up
12.87
W
m
−2
under
50‐fold
salinity
gradient
can
serve
as
urine
monitors,
effectively
distinguishing
infants'
urination
motility
behaviors
alerting
saturation
ionic
conductivity
(7.8
mS
−1
)
at
dilute
electrolyte
concentrations.
This
study
provides
novel
design
concept
for
biomass‐based
health
sensing
system.
Язык: Английский
Multilevel Geometric Optimization in Nanochannel Membranes for Osmotic Energy Conversion
Journal of Membrane Science,
Год журнала:
2025,
Номер
unknown, С. 123912 - 123912
Опубликована: Фев. 1, 2025
Язык: Английский
A Mechanically Robust, Extreme Environment-Stable, and Fast Ion Transport Nanofluidic Fiber
Nano Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 10, 2025
Constructing
mechanically
strong
and
environmentally
stable
nanofluidic
fibers
with
excellent
ion
transport
remains
a
challenge.
Herein,
we
design
robust
aramid
nanofiber/carboxylated
nanofiber
(ANF/cANF)
hybrid
fiber
high
ionic
conductivity
via
wet
spinning-induced
orientation
strategy.
Benefiting
from
the
oriented
structure
interfacial
interactions
of
filaments,
ANF/cANF
exhibits
tensile
strength
276.8
MPa.
Carboxylation
nanochannels
dramatically
reduce
charge
transfer
resistance,
resulting
in
conductivity.
As
result,
obtains
5-fold
increase
compared
to
that
disordered
fiber.
Notably,
maintains
its
structural
integrity
mechanical
properties
after
90
days
immersion
water.
Additionally,
it
retains
favorable
surface-charge-dominated
capabilities
even
under
extreme
conditions,
including
exposure
acids,
alkalis,
ethanol,
as
well
treatments
at
(150
°C)
low
(-196
temperatures.
Язык: Английский
Biomass-Derived Gradient and Aligned Structured Aerogel for Sustainable Agricultural Irrigation
Nano Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 23, 2025
Interface
evaporation-driven
hydroelectric
systems
integrating
water
purification
and
energy
collection
offer
the
potential
for
sustainable
agricultural
irrigation.
However,
achieving
high
evaporation
rates
efficient
harvesting
poses
challenges,
particularly
in
optimizing
transport.
This
study
develops
a
gradient-aligned
structured
aerogel
(GA
aerogel),
composed
of
biomass
materials
such
as
cellulose
chitosan,
which
utilizes
transport
through
aligned
channels,
unique
ion
management
nanoscale
chitosan's
ability
to
reduce
consumption,
thereby
enhancing
performance.
The
GA
achieves
solar
absorption
rate
91.4%,
an
2.5
kg
m–2
h–1,
output
power
680
nW
cm–2,
stable
operation
over
120
h.
Furthermore,
by
series
array
with
capacitive
storage,
system
harvested
electrical
irrigate
plants
purified
water,
promoting
agriculture
providing
insights
designing
biomass-based
evaporators.
Язык: Английский
Light-Boosted Simultaneous Acid and Salinity Gradient Energy Recovery from Wastewater via a Nanochannel Membrane with Multi-Objective Ion Separation Ability
Water Research,
Год журнала:
2025,
Номер
unknown, С. 123670 - 123670
Опубликована: Апрель 1, 2025
Язык: Английский
Biomass-Based Functional Composite Resins with Recyclable and Shape Memory Properties
Biomacromolecules,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 21, 2025
A
key
challenge
in
developing
advanced
functional
thermosets
lies
designing
molecular
architectures
capable
of
integrating
different
specific
performances
into
one
material
to
meet
diverse
application
demands.
Here,
a
chitosan-derived
trifunctional
compound
containing
maleimide
groups
was
used
directly
cross-link
tung
oil-based
polymer
for
fabricating
multifunctional
composite
bioresins
with
reversible
Diels-Alder
bonds.
The
cross-linking
networks
within
resins
were
featured
stress
relaxation,
thermal
reprocessability,
and
recyclability.
retro
D-A
reaction
at
relatively
high
temperatures
provided
the
dynamic
characteristics
while
ensuring
their
dimensional
stability.
Moreover,
chitosan
enhanced
mechanical
properties
forming
supramolecular
hydrogen
bonds
via
its
abundant
amino/hydroxyl
groups,
realizing
shape
memory
resins.
Furthermore,
synergistic
interaction
between
bonding
also
imparted
proton
conductivity
This
work
design
paradigm
that
harmonizes
integration
fully
biomass
resins,
aiming
high-value
applications.
Язык: Английский
Cellulose Nanocrystal Composite Membrane Enhanced with In Situ Grown Metal–Organic Frameworks for Osmotic Energy Conversion
Small,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 22, 2024
Access
to
clean
and
renewable
energy,
osmotic
energy
from
salinity
gradient
difference,
for
example,
is
central
the
sustainability
of
human
civilization.
Despite
numerous
examples
nanofluidic
membranes
conversion,
one
produced
abundant
biomass
resources
remains
largely
unexplored.
In
this
work,
cotton-derived
cellulose
nanocrystals
(CNCs)
are
employed
fabricate
a
membrane
by
self-assembly
with
polyvinyl
alcohol
(PVA)
subsequent
in
situ
growth
metal-organic
framework
(MOF),
UiO-66-(COOH)
Язык: Английский
Chitin Exfoliation Nanoengineering for Enhanced Salinity Gradient Power Conversion
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 10, 2024
Abstract
Rapid
advancements
in
nano‐exfoliation
and
dissolution
strategies
have
effectively
disassembled
hierarchical
biomass
materials
into
nanosheets,
nanofibers,
even
atomic‐scale
molecular
chains,
making
them
highly
applicable
osmotic
energy
harvesting.
However,
sub‐nanosheets,
situated
between
chains
remain
unexplored
due
to
the
demanding
nature
of
their
preparation
methods.
Herein,
a
pseudosolvent‐driven
programmable
ion
intercalation‐exfoliation
strategy
is
developed
that
triggers
exfoliation
along
lowest
crystal
plane
(010),
as
simulations
confirm.
This
method
allows
for
controlled
chitin
assemblies
ranging
from
nanofibers
sub‐nanometer
sheets
chains.
Specifically,
compared
nanofibrils,
sheet
interfacial
assembly
exhibits
higher
surface
charge
density
interplanar
spacing,
leading
2.3‐fold
increase
transport
flux
while
maintaining
high‐performance
selective
behavior,
confirmed
by
both
experiments
scale
simulations,
respectively.
These
enhancements
result
superior
ionic
conductivity
power
conversion
performance
(8.45
W
m
−2
)
under
50‐fold
salinity
gradient,
surpassing
commercial
standards
(5.0
other
all‐biomass
membrane
systems
(Max.
2.87
).
work
provides
insights
at
enhancing
Язык: Английский
Turing-type nanochannel membranes with extrinsic ion transport pathways for high-efficiency osmotic energy harvesting
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Ноя. 26, 2024
Two-dimensional
(2D)
nanofluidic
channels
with
confined
transport
pathways
and
abundant
surface
functional
groups
have
been
extensively
investigated
to
achieve
osmotic
energy
harvesting.
However,
solely
relying
on
intrinsic
interlayer
results
in
insufficient
permeability,
thereby
limiting
the
output
power
densities,
which
poses
a
significant
challenge
widespread
application
of
these
materials.
Herein,
we
present
nanoconfined
sacrificial
template
(NST)
strategy
create
crafted
channel
structure,
termed
as
Turing-type
nanochannels,
within
membrane.
Extrinsic
interlaced
are
formed
between
lamellae
using
copper
hydroxide
nanowires
templates.
These
nanochannels
significantly
increase
areas,
resulting
23%
enhancement
ionic
current
while
maintaining
cation
selectivity
0.91.
The
density
nanochannel
membrane
increases
from
3.9
5.9
W
m−2
remains
stable
for
at
least
120
hours.
This
exhibits
enhanced
applicability
real
saltwater
environments
across
China,
achieving
densities
7.7
natural
seawater
9.8
salt-lake
brine.
work
demonstrates
promising
potential
Turing-channel
design
conversion
field.
High
permselectivity
nanofluidics
conversion.
Here,
authors
construct
two
dimensional
provide
extrinsic
improve
both
ion
flux,
efficient
Язык: Английский