ACS Nano,
Journal Year:
2021,
Volume and Issue:
15(12), P. 19600 - 19612
Published: Nov. 17, 2021
As
interest
continues
to
grow
in
Ti3C2Tx
and
other
related
MXenes,
advancement
methods
of
manipulation
their
surface
functional
groups
beyond
synthesis-based
terminations
(Tx:
-F,
-OH,
═O)
can
provide
mechanisms
enhance
solution
processability
as
well
produce
improved
solid-state
device
architectures
coatings.
Here,
we
report
a
chemically
important
modification
approach
which
"solvent-like"
polymers,
polyethylene
glycol
carboxylic
acid
(PEG6-COOH),
are
covalently
attached
onto
MXenes
via
esterification
chemistry.
Surface
with
PEG6-COOH
large
ligand
loading
(up
14%
by
mass)
greatly
enhances
dispersibility
wide
range
nonpolar
organic
solvents
(e.g.,
2.88
mg/mL
chloroform)
without
oxidation
two-dimensional
flakes
or
changes
the
structure
ordering.
Furthermore,
cooperative
interactions
between
polymer
chains
improve
nanoscale
assembly
uniform
microstructures
stacked
MXene-PEG6
into
ordered
thin
films
excellent
electrical
conductivity
(∼16,200
S·cm-1).
Most
importantly,
our
covalent
ω-functionalized
PEG6
ligands
(ω-PEG6-COOH,
where
ω:
-NH2,
-N3,
-CH═CH2)
allows
for
control
over
degree
functionalization
(incorporation
valency)
MXene.
We
believe
that
installing
valency
through
short,
ion
conducting
PEG
compromising
MXenes'
features
such
processability,
structural
stability,
further
chemistry
tunability
performance
widens
applications.
Journal of Functional Biomaterials,
Journal Year:
2022,
Volume and Issue:
13(1), P. 27 - 27
Published: March 9, 2022
Two-dimensional
(2D)
nanomaterials
(e.g.,
graphene)
have
shown
to
a
high
potential
in
future
biomedical
applications
due
their
unique
physicochemical
properties
such
as
unusual
electrical
conductivity,
biocompatibility,
large
surface
area,
and
extraordinary
thermal
mechanical
properties.
Although
the
of
graphene
most
common
2D
has
been
extensively
investigated,
practical
use
other
nanoengineered
materials
beyond
transition
metal
dichalcogenides
(TMDs),
topological
insulators
(TIs),
phosphorene,
antimonene,
bismuthene,
metal–organic
frameworks
(MOFs)
MXenes
for
not
appreciated
so
far.
This
review
highlights
only
opportunities
various
research
areas
bioelectronics,
imaging,
drug
delivery,
tissue
engineering,
regenerative
medicine
but
also
addresses
risk
factors
challenges
ahead
from
medical
perspective
clinical
translation
materials.
In
conclusion,
perspectives
roadmap
are
outlined
applications.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(38)
Published: July 13, 2022
Abstract
There
is
growing
interest
in
transitioning
electronic
components
and
circuitry
from
stiff
rigid
substrates
to
more
flexible
stretchable
platforms,
such
as
thin
plastics,
textiles,
foams.
In
parallel,
the
push
for
sustainable,
biocompatible,
cost‐efficient
conductive
inks
coat
these
has
led
development
of
formulations
with
novel
nanomaterials.
Among
these,
2D
materials,
particularly
graphene
MXenes,
have
received
intense
research
due
their
increasingly
facile
scalable
production,
high
electrical
conductivity,
compatibility
existing
manufacturing
techniques.
They
enable
a
range
devices,
including
strain
pressure
sensors,
supercapacitors,
thermoelectric
generators,
heaters.
These
new
devices
developed
material
coatings
are
poised
unlock
exciting
applications
wearable,
healthcare
Internet
Things
sectors.
This
review
surveys
key
data
than
200
articles
published
over
past
6
years
provide
quantitative
analysis
recent
progress
field
shed
light
on
future
directions
prospects
this
technology.
It
found
that
despite
different
chemical
origins
shared
properties
morphology
guarantee
intriguing
performance
end
applications,
leaving
plenty
space
advancements
future.
Accounts of Materials Research,
Journal Year:
2022,
Volume and Issue:
3(8), P. 785 - 798
Published: July 18, 2022
ConspectusThe
rise
of
two-dimensional
(2D)
materials
has
led
to
significant
interest
in
their
potential
applications
for
nanomedicine
and
biomaterials
the
hope
that
they
can
overcome
some
intrinsic
limitations
conventional
theranostic
materials.
MXenes,
an
emerging
family
2D
mainly
made
transition
metal
carbides/nitrides,
have
drawn
substantial
biomedical
because
unique
physicochemical
properties.
The
remarkable
photothermal
energy-converting
capability
MXenes
allows
photonic
hyperthermia
treatment
second
near-infrared
biowindow
with
deep
tissue
penetration.
diverse
choice
elements
endows
them
aptitudes
act
as
contrast
agents
computed
tomography
magnetic
resonance
imaging.
As
understanding
pathological
characteristics
is
improved,
desirable
properties
performances
become
more
comprehensive,
which
unlikely
be
accomplished
formulation
alone.In
this
Account,
we
highlight
recent
progress
ranging
from
biomaterials.
We
will
start
by
introducing
major
synthetic
techniques
fabricating
ultrathin
structures
nanoscale
sizes
purposes.
then
elaborate
how
differ
other
materials,
showing
exclusive
applications.
surface
compositions
allow
tuning
bandgap
plasmon
effect,
essential
nanodynamic
therapy.
could
render
enzymatic
activities
nanocatalytic
also
possess
favorable
biodegradability
biocompatibility,
facilitating
clinical
translation.However,
might
insufficient
fulfill
specific
requirements
advanced
For
instance,
therapeutic
efficiency
alone
would
impaired
reasons
such
low
tumor
accumulation
nanomedicine,
inclined
thermal
resistance
cancer
cells,
hypoxic
microenvironment.
In
addition,
are
limited
therapy
or
theranostics.
been
integrated
functional
components
tackle
these
issues.
Thus,
further
discuss
strategies
fabricate
MXene-based
different
dimensional
a
broad
range
applications,
localized
regeneration.
Several
methods
modify
demonstrated
increase
stability
MXene
physiological
media.
Decorating
0D
nanoparticles
enables
combination
imaging
modalities.
Integrating
layered
improved
efficiency,
3D
implantable
discussed.
Nanomaterials,
Journal Year:
2022,
Volume and Issue:
12(23), P. 4280 - 4280
Published: Dec. 1, 2022
The
unique
properties
of
MXenes
have
been
deemed
to
be
significant
interest
in
various
emerging
applications.
However,
provide
a
major
drawback
involving
environmentally
harmful
and
toxic
substances
for
its
general
fabrication
large-scale
production
employing
high-temperature
solid-state
reaction
followed
by
selective
etching.
Meanwhile,
how
are
synthesized
is
essential
directing
their
end
uses.
Therefore,
making
strategic
approaches
synthesize
greener,
safer,
more
sustainable,
friendly
imperative
commercialize
at
competitive
price.
With
increasing
reports
green
synthesis
that
promote
advanced
technologies
non-toxic
agents,
it
critical
compile,
summarize,
the
latest
development
green-related
technology
MXenes.
We
review
recent
progress
sustainable
MXene
with
focus
on
fundamental
synthetic
process,
mechanism,
advantages,
emphasis
inherited
from
such
techniques.
use
so-called
energy
conversion
storage,
environmental
remediation,
biomedical
applications
presented.
Finally,
remaining
challenges
prospects
greener
discussed.
Advanced Science,
Journal Year:
2022,
Volume and Issue:
9(10)
Published: Feb. 15, 2022
The
2D
transition
metal
carbides/nitrides
(2D
MXenes)
are
a
versatile
class
of
materials
for
photovoltaic
(PV)
systems.
numerous
advantages
MXenes,
including
their
excellent
metallic
conductivity,
high
optical
transmittance,
solution
processability,
tunable
work-function,
and
hydrophilicity,
make
them
suitable
deployment
in
PV
technology.
This
comprehensive
review
focuses
on
the
synthesis
methodologies
properties
MXenes
MXene-based
Titanium
carbide
MXene
(Ti
