ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(28), С. 37308 - 37317
Опубликована: Июль 8, 2024
The
chiroptical
activity
of
various
semiconductor
inorganic
nanocrystalline
materials
has
typically
been
tested
using
circular
dichroism
or
circularly
polarized
luminescence.
Herein,
we
report
on
a
high-throughput
screening
method
for
identifying
and
differentiating
chiroptically
active
quantum-sized
ZnO
crystals
Raman
spectroscopy
combined
with
principal
component
analysis.
quantum
dots
(QDs)
coated
by
structurally
diverse
homo-
heterochiral
aminoalcoholate
ligands
(cis-
trans-1-amino-2-indanolate,
2-amino-1-phenylethanolate,
diphenyl-2-pyrrolidinemethanolate)
were
prepared
the
one-pot
self-supporting
organometallic
procedure
then
extensively
studied
toward
identification
specific
fingerprints
spectral
variations.
direct
comparison
between
spectra
demonstrates
that
it
is
very
difficult
to
make
definite
recognition
QDs
enantiomers
based
only
differences
in
respective
bands'
position
shifts
their
intensities.
However,
applied
approach
involving
analysis
performed
allows
simultaneous
differentiation
QDs.
first
second
components
explain
98,
97,
87%
variability
among
families
demonstrate
possibility
presented
as
qualitative
assay.
Thus,
reported
multivariate
paves
way
chirotopically
nanocrystals.
ACS Applied Nano Materials,
Год журнала:
2023,
Номер
6(21), С. 19632 - 19638
Опубликована: Окт. 19, 2023
Chiroptical
activity
over
a
broad
range
is
expected
to
enable
numerous
applications
including
bioimaging
and
nanothermometers.
However,
understanding
the
chemical
mechanism
behind
producing
multiscale
chirality
for
chiroptical
activities
remains
challenging.
Here,
we
present
simple
chiral
synthesis
elucidate
underlying
self-assembly
of
achiral
copper
sulfide
nanoparticles
(NPs).
The
initially
NPs
assemble
into
anisotropically
twisted
structures
with
distinct
handedness
depending
on
molecules
in
solution.
Importantly,
reveal
first
time,
our
knowledge,
that
metal
ions
act
as
messengers
transfer
information
from
small
microstructures.
resulting
exhibit
strong
ranging
ultraviolet
infrared.
This
study
not
only
enhances
but
also
offers
effective
approaches
inorganic
materials
next-generation
material-based
applications.
Nanotechnology Reviews,
Год журнала:
2024,
Номер
13(1)
Опубликована: Янв. 1, 2024
Abstract
Chiral
biomimetic
nanostructures
were
successfully
synthesized
through
the
oxidative
polymerization
of
chiral
and
achiral
catecholamines
in
presence
optically
active
1,2-diaminocyclohexane
(DACH).
Analysis
these
using
circular
dichroism
confirmed
their
nature,
demonstrating
feasibility
inducing
chirality
polycatecholamine
materials.
Furthermore,
exhibited
self-assembly
behaviour,
forming
distinctive
patterns
or
curly
carpets-like
structures
on
silicon
surfaces.
The
arrangement
morphology
closely
linked
to
amount
DACH
its
inherent
chirality.
Additionally,
process
was
shown
be
significantly
influenced
by
pH
reaction
choice
supporting
These
findings
are
particularly
relevant
context
molecular
nanoaggregates/particles
generated
during
dopamine
polymerization,
suggesting
a
promising
avenue
for
development
novel
polycatechols-based
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Фев. 12, 2024
Abstract
Background
Molybdenum
disulfide
(MoS2)
has
excellent
physical
and
chemical
properties.
Further,
chiral
MoS2
(CMS)
exhibits
chiroptical
enantioselective
effects,
the
properties
of
CMS
have
been
studied
for
treatment
neurodegenerative
diseases.
Intriguingly,
left-
right-handed
materials
different
effects
on
promoting
differentiation
neural
stem
cells
into
neurons.
However,
effect
enantioselectivity
peripheral
nerve
regeneration
remains
unclear.
Methods
In
this
study,
CMS@bacterial-cellulose
(BC)
scaffolds
were
fabricated
using
a
hydrothermal
approach.
The
CMS@BC
films
synthesized
with
L-2-amino-3-phenyl-1-propanol
was
defined
as
L-CMS.
D-2-amino-3-phenyl-1-propanol
D-CMS.
biocompatibility
their
Schwann
(SCs)
validated
by
cellular
experiments.
addition,
we
implanted
these
in
rat
sciatic
defect
sites
three
months.
Results
These
display
high
hydrophilicity,
good
mechanical
properties,
low
cytotoxicity.
found
that
L-CMS
scaffold
superior
to
D-CMS
cell
(SC)
proliferation.
After
3
months,
showed
in
vivo,
conducting
velocities
51.2
26.8
m/s,
respectively.
better
regenerative
than
scaffolds.
Similarly,
function
index
motor
electrophysiological
functions
higher
Finally,
axon
diameter
myelin
sheath
thickness
regenerated
nerves
improved
group.
Conclusion
We
can
promote
regeneration,
general,
group
exhibited
repair.
Overall,
findings
study
reveal
be
used
nanomaterial
Deleted Journal,
Год журнала:
2024,
Номер
1(2), С. 89 - 102
Опубликована: Май 8, 2024
Chiral
nanomaterials
with
distinctive
physical
and
chemical
properties,
including
circular
dichroism,
circularly
polarized
photoluminescence,
nonlinear
optics,
spintronics,
have
risen
to
the
forefront
of
materials
science
research,
remarkable
potential
for
applications
in
drug
delivery
disease
diagnosis
treatment.
In
recent
years,
increasing
attention
has
been
drawn
application
chiral
study
treatment
neurodegenerative
diseases,
mainly
due
their
stereoselective
interactions
biomolecules,
such
as
DNA,
amino
acids,
peptides,
which
are
also
chiral.
Although
there
some
good
reviews
biological
nanomaterials,
little
in-depth
discussion
diseases
date.
Thus,
progress
was
summarized
discussed
this
review.
Firstly,
classification,
preparation
methods
characteristics
were
described.
The
subsequent
focused
on
mechanism
diseases.
Moreover,
current
challenges
future
prospects
filed
thoroughly
discussed.
This
review
will
provide
valuable
insights
guidance
construction
that
possess
specific
functions
alleviating
progression
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(28), С. 37308 - 37317
Опубликована: Июль 8, 2024
The
chiroptical
activity
of
various
semiconductor
inorganic
nanocrystalline
materials
has
typically
been
tested
using
circular
dichroism
or
circularly
polarized
luminescence.
Herein,
we
report
on
a
high-throughput
screening
method
for
identifying
and
differentiating
chiroptically
active
quantum-sized
ZnO
crystals
Raman
spectroscopy
combined
with
principal
component
analysis.
quantum
dots
(QDs)
coated
by
structurally
diverse
homo-
heterochiral
aminoalcoholate
ligands
(cis-
trans-1-amino-2-indanolate,
2-amino-1-phenylethanolate,
diphenyl-2-pyrrolidinemethanolate)
were
prepared
the
one-pot
self-supporting
organometallic
procedure
then
extensively
studied
toward
identification
specific
fingerprints
spectral
variations.
direct
comparison
between
spectra
demonstrates
that
it
is
very
difficult
to
make
definite
recognition
QDs
enantiomers
based
only
differences
in
respective
bands'
position
shifts
their
intensities.
However,
applied
approach
involving
analysis
performed
allows
simultaneous
differentiation
QDs.
first
second
components
explain
98,
97,
87%
variability
among
families
demonstrate
possibility
presented
as
qualitative
assay.
Thus,
reported
multivariate
paves
way
chirotopically
nanocrystals.
