ACS Materials Letters,
Год журнала:
2023,
Номер
6(1), С. 182 - 193
Опубликована: Дек. 11, 2023
Although
the
stimulus-responsive
nanoplatform
shows
excellent
drug
delivery
preponderance
in
controlling
release,
its
application
is
still
inevitably
restricted
by
exogenous
uncontrollability,
scarce
biocompatibility,
and
a
complex
tumor
microenvironment.
Here,
photodriven
self-augmented
precision
controllable
was
constructed
designing
novel
pump-type
switch
cross-linker
with
1O2-activation
to
covalently
cross-link
topoisomerase
I
of
7-ethyl-10-hydroxycamptothecin
(SN38)
concurrently
loading
chlorin
e6
(Ce6)
obtain
anticipative
nanopump-CNs.
After
laser
irradiation,
nanopump
can
be
controllably
unlocked,
realizing
self-enhanced
cascade
amplification
process
producing
reactive
oxygen
species
(ROS)
while
releasing
chemotherapy
drug.
Significantly,
SN38
effectively
increase
sensitivity
tumor-related
organelles
ROS
inducing
DNA
damage
cells,
thus,
amplifying
efficacy
photodynamics
caused
Ce6.
This
nanosystem
based
on
controlled
photodynamic
therapy
expected
provide
new
perspective
for
nanomedicine
precise
regulation
model
malignant
therapy.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(29)
Опубликована: Март 30, 2023
Abstract
The
advances
made
in
the
field
of
stimuli‐responsive
catalysis
during
last
five
years
with
a
focus
on
novel
recently‐emerged
directions
and
applications
have
been
surveyed.
Metal‐free
catalysts
organometallic
complexes,
as
well
biomimetic
systems
extended
structures,
which
display
switchable
catalytic
activity
for
variety
organic
transformations,
are
discussed.
Light‐activated
comprised
photochromic
molecules
capable
modulating
reaction
rate,
yield,
or
enantioselectivity
based
geometric
electronic
changes
associated
photoisomerization
detailed
discussion.
Alternative
stimuli,
including
pH
temperature,
could
be
applied
either
alone
combination
light,
also
addressed.
Recent
clearly
demonstrate
that
capability
to
finely
tune
catalyst
behavior
via
an
external
stimulus
is
powerful
tool
alter
landscape
sustainable
chemistry.
Crystal Growth & Design,
Год журнала:
2024,
Номер
24(14), С. 6060 - 6080
Опубликована: Апрель 17, 2024
The
assembly
of
(nano)particles
into
compact
hierarchical
structures
yields
emergent
properties
not
found
in
the
individual
constituents.
formation
these
relies
on
a
profound
knowledge
nanoscale
interactions
between
(nano)particles,
which
are
often
designed
by
researchers
aided
computational
studies.
These
have
an
effect
when
brought
close
proximity,
yet
relying
only
diffusion
to
reach
closer
distances
may
be
inefficient.
Recently,
physical
confinement
has
emerged
as
efficient
methodology
increase
volume
fraction
rapidly
accelerating
time
scale
assembly.
Specifically,
high
surface
area
droplets
one
immiscible
fluid
another
facilitates
controlled
removal
dispersed
phase,
resulting
spherical,
ordered,
(nano)particle
assemblies.
In
this
review,
we
discuss
design
strategies,
approaches,
and
methods
for
confined
spaces
therein,
such
trigger-directed
assembly,
lasing
behavior,
structural
photonic
color.
Finally,
provide
brief
outlook
current
challenges,
both
experimental
computational,
farther
afield
application
possibilities.
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
12(30), С. 11285 - 11318
Опубликована: Янв. 1, 2024
The
development
and
ongoing
discovery
of
2D
materials
their
optical
electronic
properties
led
to
interest
in
the
stacking
different
into
layered
heterostructures,
giving
rise
a
number
colloidal
approaches.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(18)
Опубликована: Фев. 26, 2024
Self-assembly
of
inorganic
nanoparticles
(NPs)
is
an
essential
tool
for
constructing
structured
materials
with
a
wide
range
applications.
However,
achieving
ordered
assembly
structures
externally
programmable
properties
in
binary
NP
systems
remains
challenging.
In
this
work,
we
assemble
NPs
into
hierarchically
pH-responsive
alternating
copolymer-like
nanostructures
aqueous
medium
by
engineering
the
interparticle
electrostatic
interactions.
The
polymer-grafted
bearing
opposite
charges
are
viewed
as
nanoscale
monomers
("nanomers"),
and
copolymerized
nano-copolymers
(ANCPs)
driven
formation
"bonds"
between
nanomers.
resulting
ANCPs
exhibit
reversibly
responsive
"bond"
length
(i.e.,
distance
nanomers)
response
to
variation
pH
~7-10,
allowing
precise
control
over
surface
plasmon
resonance
ANCPs.
Moreover,
specific
can
break
up
at
pH≥11,
leading
dis-assembly
molecule-like
dimers
trimers.
These
dimeric
trimeric
reassemble
form
owing
resuming
"bonds",
when
value
solution
changes
from
11
7.
may
find
applications
such
biosensing,
optical
waveguide,
electronic
devices.
Nanomaterials,
Год журнала:
2023,
Номер
13(18), С. 2562 - 2562
Опубликована: Сен. 15, 2023
Photo-controlled
self-assembly
of
nanoparticles
(NPs)
is
an
advanced
and
promising
approach
to
address
a
series
material
issues
from
the
molecular
level
nano/micro
scale,
owing
fact
that
light
stimulus
typically
precise
rapid,
can
provide
contactless
spatial
temporal
control.
The
traditional
photo-controlled
assembly
NPs
based
on
photochemical
processes
through
modified
by
photo-responsive
molecules,
which
are
realized
change
in
chemical
structure
under
irradiation.
Moreover,
photoexcitation-induced
another
physical
strategy,
such
strategy
aims
employ
conformational
excited
state
(rather
than
structure)
drive
motion
assembly.
exploration
control
NP
open
new
paradigm
for
scientists
deal
with
“bottom-up”
behaviors
develop
unprecedented
optoelectronic
functional
materials.
Chemical Communications,
Год журнала:
2023,
Номер
59(93), С. 13800 - 13819
Опубликована: Янв. 1, 2023
This
feature
article
highlights
the
potential
of
precision
nanoengineering
in
enabling
functional
self-assemblies
across
length
scales
using
atomically
precise
nanoparticles.
Analytical Chemistry,
Год журнала:
2023,
Номер
95(48), С. 17426 - 17437
Опубликована: Ноя. 16, 2023
UV–vis
spectrophotometry
and
spectrofluorometry
are
indispensable
tools
in
education,
research,
industrial
process
controls
with
widespread
applications
nanoscience
encompassing
diverse
nanomaterials
fields.
Nevertheless,
the
prevailing
spectroscopic
interpretations
analyses
often
exhibit
ambiguity
errors,
particularly
evident
literature.
This
analytical
chemistry
Perspective
focuses
on
fostering
evidence-based
data
interpretation
experimental
studies
of
materials'
absorption,
scattering,
fluorescence
properties.
We
begin
by
outlining
common
issues
observed
analysis.
Subsequently,
we
provide
a
summary
recent
advances
commercial
spectrophotometric
spectrofluorometric
instruments,
emphasizing
their
potential
to
enhance
scientific
rigor
Furthermore,
propose
avenues
for
future
developments
instrumentation
measurement
strategies,
aiming
further
augment
utility
optical
spectroscopy
nano
research
samples
where
complexity
surpasses
existing
tools.
Through
targeted
focus
critical
related
properties
nanomaterials,
this
can
serve
as
valuable
resource
researchers,
educators,
practitioners.
Self-organization
of
inorganic
matter
enables
bottom-up
construction
materials
with
targetted
shapes
suited
to
their
function.
Positioning
the
building
blocks
in
growth
process
involves
a
well-balanced
interplay
reaction
and
diffusion.
Whereas
(supra)molecular
structures
have
been
used
template
such
processes,
we
reasoned
that
molecular
assemblies
can
be
employed
actively
create
concentration
gradients
which
shape
deposition
solid,
wire-like
structures.
The
core
our
approach
comprises
interaction
between
myelin
deliver
copper(II)
ions
tips
copper
dendrites,
turn
grow
along
Cu2+-gradient
upon
electrodeposition.
First,
successfully
include
Cu2+
amongst
amphiphile
bilayers
filaments,
from
C12E3-based
source
droplets
over
air-water
interfaces.
Second,
characterize
dendritic
electrodeposition
negative
electrode
at
sub-mM
concentrations
are
anticipated
release
loaded
myelins.
Third,
assess
intricate
dendrites
electrodeposition,
when
combined
myelins
electrode,
feeding
dendrite
Intriguingly,
follow
gradient
towards
myelins,
them
droplet.
We
demonstrate
dynamic
connections
electrodes
surfactant
reconfigurabe
setups
–
featuring
unique
inorganic,
solid
With
growing
interest
neuromorphic
circuitry,
envision
self-organizing
system
opening
entirely
new
pathways
for
interconnected
networks
(semi)conductive
wires
integrated
soft-matter
based
systems.
ABSTRACT
Physically
unclonable
functions
(PUFs)
are
essential
for
anticounterfeiting.
Creating
high‐stability,
multimode,
and
secure
labels
remains
challenging.
Herein,
we
present
a
novel
self‐assembly
method
modulating
the
optical
signals
of
rare‐earth
(RE)
complexes
via
interactions
with
Ag
nanoparticles
(Ag‐NPs).
Initially,
engineered
positively
charged
Eu
3+
complex
([EuL
3
]
),
which
promotes
negatively
Ag‐NPs
to
form
Eu/Ag‐NPs
composites.
The
assembly
induces
surface
plasmon
effect
that
boosts
luminescent
quantum
yield
Raman
signal
intensities,
modifies
luminescence
lifetime
[EuL
.
Crucially,
these
micron‐scale
can
be
applied
substrates,
facilitating
high‐resolution
acquisition
diverse
information
encoding
within
limited
space.
Validation
experiments
reveal
PUF
crafted
using
exhibit
inherent
randomness
uniqueness,
along
stable
repeatable
output.
strategic
Ag‐NPs,
mediated
by
,
effective
modulation
material
properties,
paves
way
advancing
high‐resolution,
high‐information‐density
solutions
in
anticounterfeiting
technologies.
