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
The Journal of Physical Chemistry C,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 6, 2025
Handedness
classification
plays
a
crucial
role
in
the
synthesis
and
application
of
chiral
nanomaterials,
while
currently,
it
usually
relies
on
manual
detection
identification.
Artificial
intelligence
is
increasingly
being
integrated
into
scientific
discovery
to
achieve
goals
that
might
not
have
been
possible
using
traditional
methods
alone.
Here,
we
introduce
novel
framework
automatically
recognize
classify
nanoparticles
based
their
asymmetric
morphology
scanning
electron
microscope
images.
By
combining
image
segmentation
models
with
convolutional
neural
networks,
create
workflow
high
accuracy
real
SEM
images
minimal
labeling.
The
approach
has
successfully
applied
two
demonstrating
its
robustness
potential
for
integration
high-throughput
analysis
workflows
further
studies
materials.
Materials Horizons,
Год журнала:
2024,
Номер
11(17), С. 3975 - 3995
Опубликована: Янв. 1, 2024
Establishing
an
intimate
relationship
between
similar
individuals
is
the
beginning
of
self-extension.
Various
self-similar
chiral
nanomaterials
can
be
designed
using
individual-to-family
approach,
accomplishing
This
self-similarity
facilitates
communication,
transmission,
and
amplification
synthons.
We
focus
on
describing
marriage
discrete
cages
to
develop
extended
frameworks.
The
advantages
utilizing
cage-based
frameworks
for
recognition,
enantioseparation,
catalysis
sensing
are
highlighted.
To
further
promote
self-extension,
fractal
with
iterated
architectures
have
attracted
tremendous
attention.
beauty
a
family
tree
lies
in
its
ability
capture
complexity
interconnectedness
family's
lineage.
As
type
material,
nanoflowers
possess
overarching
importance
due
their
large
surface-to-volume
ratio.
review
summarizes
design
application
state-of-the-art
including
frameworks,
nanomaterials,
nanoflowers.
hope
this
formation
process
from
families
will
inherit
broaden
great
chirality.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(45)
Опубликована: Июль 26, 2024
Abstract
Advancing
catalyst
design
is
pivotal
for
the
enhancement
of
photocatalytic
processes
in
renewable
energy
conversion.
The
incorporation
structural
chirality
into
conventional
inorganic
solar
hydrogen
nanocatalysts
promises
a
significant
transformation
catalysis,
feature
absent
this
field.
Here
we
unveil
unexplored
potential
geometric
by
creating
chiral
composite
that
integrates
Au
nanoparticles
(NPs)
with
two‐dimensional
C
3
N
4
nanosheets,
significantly
boosting
H
2
evolution
beyond
achiral
counterparts.
superior
performance
driven
NPs,
which
facilitates
efficient
charge
carrier
separation
through
favorable
‐chiral
NP
interface
and
induced
spin
polarization,
exploits
high‐activity
facets
within
concave
surfaces
NPs.
resulting
synergistic
effect
leads
to
remarkable
increase
evolution,
an
apparent
quantum
yield
44.64
%
at
400
nm.
Furthermore,
explore
selective
polarized
photo‐induced
behavior,
revealing
distinct
chiral‐dependent
HER
performance.
Our
work
advances
utilization
nanostructures
conversion
processes.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(12)
Опубликована: Дек. 8, 2023
Abstract
Immune
response
regulates
implanted
biomaterial−tissue
integration
and
tissue
regeneration,
in
which
macrophages
play
a
key
role
due
to
their
plasticity
polarization.
Chirality,
an
inherent
property
of
carbon‐based
life,
can
also
exist
biomaterials
such
as
gold
monolayer.
Constructing
chiral
nanostructured
surfaces
implants
imitate
the
chirality
extracellular
environment
biomimetic
manner,
but
manipulation
mechanism
nanotopography
on
remain
poorly
understood.
Here,
highly
ordered
nanoparticle
arrays
with
300
or
900
nm
spacing
are
fabricated
modified
L‐
D‐chirality.
The
D‐nanoarrays
promote
M2
polarization
related
cytokine
secretion
macrophages,
thus
facilitating
reduction
inflammatory
reaction
promoting
healing
regeneration.
mechanistic
analysis
further
suggests
that
D
‐nanoarrays
proceeded
these
regulations
through
enhancing
expression
integrin
α
v/
8/
β
3‐p‐FAK
pathway
may
be
largely
attributed
its
higher
stereo‐affinity
for
fibronectin
revealed
by
quantitative
experiments
molecular
dynamics
simulations.
Overall,
this
study
demonstrates
manipulating
macrophage
phenotype,
bringing
novel
strategy
immunomodulation.
Advanced Optical Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 11, 2024
Abstract
This
study
demonstrates
effective
manipulation
of
exciton
spin
dynamics
in
a
prototypical
chiral
inorganic
nanosystem,
i.e.,
cadmium
selenide
(CdSe)
nanosheets
capped
with
cysteine
ligands
aqueous
solution,
via
facile
pH‐regulation
that
can
directly
modify
the
electronic
coupling
between
CdSe
and
cysteine's
thiol
group
through
Cd─S
bonding.
The
comparative
scrutiny
by
using
transient
circular
dichroism
spectroscopy
enables
to
decipher
pertinent
mechanisms
behind
pH‐regulated
spin‐flip
dynamics.
hole‐trapping
interaction
valence‐band
heavy‐hole
state
cysteine‐induced
“extrinsic”
surface
is
found
play
dominant
role
prolonging
hole
relaxation
lifetime
(by
more
than
threefold).
also
relevant
application
modulating
sensitivity
circularly
polarized
light
detection.
work
sets
paradigm
for
harnessing
elusive
interactions
nanosystems
achieve
desired
spin‐polarization
regulation,
refreshing
fundamental
understanding
about
involved
therein.
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
