Advanced Materials Interfaces,
Год журнала:
2022,
Номер
9(15)
Опубликована: Март 18, 2022
Abstract
The
biofunctionalization
of
graphene
field‐effect
transistors
(GFETs)
through
vinylsulfonated‐polyethyleneimine
nanoscaffold
is
presented
for
enhanced
biosensing
severe
acute
respiratory‐related
coronavirus
2
(SARS‐CoV‐2)
spike
protein
and
human
ferritin,
two
targets
great
importance
the
rapid
diagnostic
monitoring
individuals
with
COVID‐19.
heterobifunctional
enables
covalent
immobilization
binding
proteins
antifouling
polymers
while
whole
architecture
attached
to
by
multivalent
π–π
interactions.
First,
optimize
sensing
platform,
concanavalin
A
employed
glycoprotein
detection.
Then,
monoclonal
antibodies
specific
against
SARS‐CoV‐2
ferritin
are
anchored,
yielding
biosensors
limit
detections
0.74
0.23
n
m
,
apparent
affinity
constants
()
6.7
8.8
respectively.
Both
platforms
show
good
specificity,
fast
time
response,
wide
dynamic
range
(0.1–100
).
Moreover,
also
detected
in
spiked
nasopharyngeal
swab
samples.
To
rigorously
validate
this
technology,
GFET
response
matched
surface
plasmon
resonance
measurements,
exhibiting
linear
correlations
(from
100
ng
cm
−2
)
agreement
terms
K
D
values.
Finally,
performance
fabricated
strategy
compared
those
obtained
widely
monopyrene
approach,
showing
sensitivity.
Advanced Materials,
Год журнала:
2021,
Номер
34(3)
Опубликована: Ноя. 9, 2021
A
major
challenge
for
graphene
applications
is
the
lack
of
mass
production
technology
large-scale
and
high-quality
growth
transfer.
Here,
a
roll-to-roll
(R2R)
dry
transfer
process
grown
by
chemical
vapor
deposition
reported.
The
fast,
controllable,
environmentally
benign.
It
avoids
contamination
allows
reuse
substrates.
By
controlling
tension
speed
R2R
process,
electrical
sheet
resistance
achieved
as
9.5
kΩ
sq-1
,
lowest
ever
reported
among
transferred
samples.
samples
are
used
to
fabricate
graphene-based
field-effect
transistors
(GFETs)
on
polymer.
demonstrated
that
these
flexible
GFETs
feature
near-zero
doping
level
gate
leakage
current
one
two
orders
magnitude
lower
than
those
fabricated
using
wet-chemical
etched
scalability
uniformity
further
successfully
transferring
3
×
in2
sample
measuring
its
mobility
with
36
millimeter-scaled
evenly
spaced
sample.
determined
be
205
±
cm2
V-1
.
Harnessing
new
materials
for
developing
high-energy
storage
devices
set
off
research
in
the
field
of
organic
supercapacitors.
Various
attractive
properties
like
high
energy
density,
lower
device
weight,
excellent
cycling
stability,
and
impressive
pseudocapacitive
nature
make
supercapacitors
suitable
candidates
high-end
applications.
This
review
highlights
overall
progress
future
Sustainable
production
depend
on
low
cost,
large
supercapacitor
packs
with
density.
Organic
pseudocapacitance,
lightweight
form
factor,
higher
potential
are
alternatives
to
other
devices.
There
many
recent
ongoing
works
that
focus
electrolytes
along
material
aspect
summarizes
current
status
chemistry
behind
mechanism
overcome
challenges
achieve
superior
performance
opportunities.
Van
der
Waals
(vdW)
heterostructures
composed
of
atomically
thin
two-dimensional
(2D)
materials
have
more
potential
than
conventional
metal-oxide
semiconductors
because
their
tunable
bandgaps,
and
sensitivities.
The
remarkable
features
these
amazing
vdW
are
leading
to
multi-functional
logic
devices,
photodetectors,
negative
differential
resistance
(NDR)
Esaki
diodes.
Here,
an
stacking
p-type
black
arsenic
(b-As)
n-type
tin
disulfide
(n-SnS
Nano Letters,
Год журнала:
2022,
Номер
22(8), С. 3307 - 3316
Опубликована: Апрель 15, 2022
Accurate
and
population-scale
screening
technology
is
crucial
in
the
control
prevention
of
COVID-19,
such
as
pooled
testing
with
high
overall
efficiency.
Nevertheless,
faces
challenges
sensitivity
specificity
due
to
diluted
targets
increased
contaminations.
Here,
we
develop
a
graphene
field-effect
transistor
sensor
modified
triple-probe
tetrahedral
DNA
framework
(TDF)
dimers
for
10-in-1
SARS-CoV-2
RNA.
The
synergy
effect
triple
probes
well
special
nanostructure
achieve
higher
binding
affinity,
faster
response,
better
specificity.
detectable
concentration
reaches
0.025–0.05
copy
μL–1
unamplified
samples,
lower
than
that
reverse
transcript-polymerase
chain
reaction.
Without
requirement
nucleic-acid
amplification,
sensors
identify
all
14
positive
cases
30
nasopharyngeal
swabs
within
an
average
diagnosis
time
74
s.
Unamplified
enabled
by
TDF
dimer
has
great
potential
COVID-19
other
epidemic
diseases.
ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(5), С. 7610 - 7626
Опубликована: Янв. 26, 2023
Hybrid
organic-inorganic
materials
are
attracting
enormous
interest
in
science
due
to
the
combination
of
multiple
advantageous
properties
both
organic
and
inorganic
components.
Taking
advantage
a
simple,
scalable,
solvent-free
hard-sacrificial
method,
we
report
successful
fabrication
three-dimensional
hybrid
porous
foams
by
integrating
two
types
fillers
into
poly(dimethylsiloxane)
(PDMS)
framework.
These
consist
hydrophobic
electrically
conductive
graphene
(GR)
nanoplatelets
bactericidal
copper
(Cu)
microparticles.
The
were
utilized
create
hierarchical
rough
structure
with
low-surface-energy
on
PDMS
foam
surfaces,
leading
remarkable
superhydrophobicity/superoleophilicity
contact
angles
158
0°
for
water
oil,
respectively.
interconnected
structures
facilitated
high
oil
adsorption
capacity
excellent
reusability
as
well
highly
efficient
oil/organic
solvent-water
separation
turbulent,
corrosive,
saline
environments.
Moreover,
introduction
led
significant
improvement
electrical
conductivity
biofouling
resistance
(vs
whole
blood,
fibrinogen,
platelet
cells,
Escherichia
coli)
foams.
We
envision
that
developed
composite
strategy
will
pave
facile,
effective
way
fabricating
novel
multifunctional
ideal
may
find
potential
use
broad
range
biomedical,
energy,
environmental
applications.
Abstract
Exploiting
pseudocapacitance
in
rationally
engineered
nanomaterials
offers
greater
energy
storage
capacities
at
faster
rates.
The
present
research
reports
a
high‐performance
Molybdenum
Oxynitride
(MoON)
nanostructured
material
deposited
directly
over
stainless‐steel
mesh
(SSM)
via
reactive
magnetron
sputtering
technique
for
flexible
symmetric
supercapacitor
(FSSC)
application.
MoON/SSM
electrode
manifests
remarkable
Na
+
‐ion
pseudocapacitive
kinetics,
delivering
exceptional
≈881.83
F
g
−1
capacitance,
thanks
to
the
synergistically
coupled
interfaces
and
junctions
between
nanostructures
of
Mo
2
N,
MoO
,
3
co‐existing
phases,
resulting
enhanced
specific
surface
area,
increased
electroactive
sites,
improved
ionic
electronic
conductivity.
Employing
3D
Bode
plots,
b
‐value,
Dunn's
analysis,
comprehensive
insight
into
charge‐storage
mechanism
has
been
presented,
revealing
superiority
surface‐controlled
capacitive
kinetics.
Utilizing
PVA‐Na
SO
4
gel
electrolyte,
assembled
all‐solid‐state
FSSC
(MoON/SSM||MoON/SSM)
exhibits
impressive
cell
capacitance
30.7
mF
cm
−2
(438.59
)
0.125
mA
.
Moreover,
device
outputs
superior
density
4.26
µWh
(60.92
Wh
kg
high
power
2.5
mW
(35.71
kW
).
flexibility
excellent
electrochemical
cyclability
≈91.94%
10,000
continuous
charge–discharge
cycles.
These
intriguing
performances
combined
with
lightweight,
cost‐effective,
industry‐feasible,
environmentally
sustainable
attributes
make
MoON‐based
potential
candidate
energy‐storage
applications
electronics.
Advanced Materials,
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 4, 2023
Promising
advances
in
molecular
medicine
have
promoted
the
urgent
requirement
for
reliable
and
sensitive
diagnostic
tools.
Electronic
biosensing
devices
based
on
field-effect
transistors
(FETs)
exhibit
a
wide
range
of
benefits,
including
rapid
label-free
detection,
high
sensitivity,
easy
operation,
capability
integration,
possessing
significant
potential
application
disease
screening
health
monitoring.
In
this
perspective,
tremendous
efforts
achievements
development
high-performance
FET
biosensors
past
decade
are
summarized,
with
emphasis
interface
engineering
FET-based
electrical
platforms
biomolecule
identification.
First,
an
overview
strategies
modulation
recognition
element
design
is
discussed
detail.
For
further
step,
applications
vitro
detection
real-time
monitoring
biological
systems
comprehensively
reviewed.
Finally,
key
opportunities
challenges
electronic
discussed.
It
anticipated
that
comprehensive
understanding
will
inspire
additional
techniques
developing
highly
sensitive,
specific,
stable
as
well
emerging
designs
next-generation
electronics.
