Self-assembled Nanostructures of Noncovalent Giant Amphiphilic Molecules Composed of Hydrophobic Isobutyl BPOSS and Hydrophilic POM in Different Cosolvents
Fengfeng Feng,
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Dongcheng Xiao,
No information about this author
Fan Yang
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et al.
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 21, 2025
The
self-assembly
of
giant
amphiphilic
molecules
with
diverse
topological
structures
has
been
widely
investigated
in
bulk,
solution,
and
interfacial
environments
because
it
can
lead
to
interesting
geometric
patterns.
However,
many
or
their
self-assembling
units
are
built
by
covalent
bonds,
which
may
limit
the
movement
molecular
blocks,
affecting
process
microstructure.
In
contrast,
noncovalent
interactions
nanomorphologies
nanostructures.
this
study,
we
(BPOSS&POM)
forming
electrostatic
between
hydrophobic
isobutyl
polyhedral
oligomeric
silsesquioxanes
(BPOSSs)
hydrophilic
polyoxometalates
(POMs)
investigate
behavior
water/acetone,
water/THF,
hexane/acetone
cosolvents.
By
controlling
solvent
parameters,
BPOSS&POM
self-assembled
into
nanosheet,
nanobelt,
nanosphere,
nanocrumb
structures.
morphology
detailed
nanostructure
different
self-assemblies
were
revealed
performing
transmission
electron
microscopy
(TEM),
scanning
(SEM),
small-angle
X-ray
scattering
(SAXS)
measurements.
TEM
SAXS
results
indicated
that
microphase
exhibited
a
lamellar
structure
an
interlayer
distance
about
3
nm.
was
alternatively
organized
layers
BPOSS
POM
according
size
dimension.
polarity
solvents
substantially
affected
nanoassemblies
but
not
aggregation
POM.
This
research
offers
insights
preparation
nanomaterials
micromorphologies
simply
adjusting
solution
components.
Language: Английский
Regulating Enol-to-Keto Tautomerization of Pillararene-Based Conjugated Macrocycle Polymers for H2O2 Photosynthesis
Zhuo-Qin Wang,
No information about this author
Menghao Li,
No information about this author
Shuang Liang
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et al.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 10, 2025
Porous
organic
polymers
have
emerged
as
promising
materials
for
energy
conversion,
pollutant
adsorption,
and
heterogeneous
catalysis
because
of
their
tunable
pore
structures
high
surface
areas.
However,
most
porous
are
still
limited
by
insufficient
conjugation
inefficient
electron-hole
separation,
hindering
the
tunability
photoelectric
properties
overall
functionality.
By
integrating
macrocyclic
compounds
a
new
building
block,
which
feature
electron-rich
cavities
rigid
ring
structures,
into
polymer
network,
resulting
conjugated
macrocycle
expected
to
provide
an
innovative
approach
enrich
functionalities
polymers.
Herein,
enaminone-based
pillararene
photocatalyst,
TpAP[5],
is
constructed
covalently
linking
functionalized
pillar[5]arene
through
Schiff
base
condensation
efficient
photocatalytic
reactions.
This
material
demonstrates
exceptional
performance
in
production
hydrogen
peroxide,
achieving
rate
2343
μmol
g-1
h-1.
In-depth
investigations
reveal
that
incorporation
pillararenes
enables
synergistic
water
oxidation
oxygen
reduction
reactions
significantly
enhances
catalyst
stability
regulating
molecular
tautomerization.
work
opens
avenues
designing
high-performance
multifunctional
with
significant
potential
clean
conversion.
Language: Английский
Anthracene and pyrene containing fluorescent metallacycles/cages (MOCs) and their applications
Jiaxing Du,
No information about this author
Meng Yu,
No information about this author
Wei Tuo
No information about this author
et al.
APL Materials,
Journal Year:
2025,
Volume and Issue:
13(5)
Published: May 1, 2025
Metal–organic
cycle/cages
(MOCs)
are
a
class
of
molecular
structures
characterized
by
their
unique
shapes
and
dimensions,
created
using
the
systematic
combination
an
organic
donor
metal
center.
Due
to
versatile
properties,
MOCs
highly
useful
in
materials
science.
Owing
structural
photoelectric
polycyclic
aromatic
hydrocarbons
have
significant
application
potential
optoelectronic
devices,
chemical
sensing,
biomedical
fields.
Fluorescent
constructed
with
units
such
as
anthracene
pyrene
backbones
show
fluorescence
properties
broad
applications
recognition,
bioimaging,
functional
materials.
This
review
highlights
latest
research
progress
on
these
multiple
areas,
including
luminescence,
resonance
energy
transfer,
host–guest
chemistry,
bioimaging.
In
addition,
design
strategies
related
involving
conformational
distortions
cycloaddition
reactions
discussed.
provides
summary
advances
this
field
during
past
three
years.
Language: Английский
Sensitive discrimination of hazardous explosives by a sensor array based on siloles with aggregate-induced emission
Hongbin Zhou,
No information about this author
Shengwen Yang,
No information about this author
Fei Chen
No information about this author
et al.
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy,
Journal Year:
2025,
Volume and Issue:
341, P. 126386 - 126386
Published: May 10, 2025
Language: Английский
Chiral Amplification and Regulation: Design and Applications of Circularly Polarized Luminescence‐Active Materials Derived From Macrocyclic Compounds
Wei Zhang,
No information about this author
Mao‐Qin Liu,
No information about this author
Yang Luo
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et al.
Aggregate,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 9, 2025
ABSTRACT
Chirality
is
a
fundamental
property
in
molecules
and
biological
systems,
characterized
by
asymmetric
configurational
features.
Circularly
polarized
luminescence
(CPL)
materials
have
gained
significant
attention
due
to
their
unique
optical
activities,
with
applications
3D
displays,
chiral
sensors,
catalysis,
more.
Chiral
transfer
amplification
typically
involve
the
generation
of
chirality
excited
state,
facilitated
interactions
like
energy
transfer,
electron
or
induction.
Supramolecular
self‐assembly
strategies,
particularly
macrocyclic
compounds,
enable
linking
achiral
luminescent
units
through
intermolecular
interactions.
Macrocyclic
hosts—cyclodextrins,
calix[
n
]arenes,
pillar[
cyclophanes,
cucurbit[
]urils—are
especially
promising
stable
structures
adjustable
cavities
for
guest
encapsulation.
These
compounds
induce
photophysical
properties
host–guest
complexation,
making
them
ideal
constructing
amplification,
CPL‐active
materials.
This
review
summarizes
advancements
multicolor
CPL
materials,
sensing,
induction,
separation,
highlighting
potential
supramolecular
material
design.
The
challenges
future
directions
this
field
are
also
discussed,
aiming
guide
further
research
application
systems.
Language: Английский
Self‐Assembled Fluorescent Peptide Nanoprobes for Disease Diagnosis
Small Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: June 1, 2025
Abstract
Benefiting
from
the
advantages
of
simple
reactions,
low
energy
consumption,
and
uniform
properties,
self‐assembly
has
been
widely
utilized
for
preparation
nanoprobes.
Peptides
have
chosen
as
“bricks”
self‐assembling
nano‐biomaterials
due
to
their
easy
drug
formation,
highly
variable
sequence,
good
biocompatibility
biodegradability.
can
efficiently
self‐assemble
through
noncovalent
interactions,
such
hydrogen
bonding,
electrostatic
π–π
stacking,
hydrophobic
van
der
Waals
forces.
Based
on
this,
many
ex
situ
in
strategies
are
developed.
The
former
self‐assembles
into
stable
nanomaterials
beforehand,
while
latter
undergoes
at
target
site
response
its
specific
stimulus‐responsive
modules.
As
probe
sizes
miniaturized
nanometer
scale,
they
gain
high
sensitivity,
detection
limits,
capability
detection.
Nanoprobes
created
self‐assembly,
usually
possess
targeted
accumulation
tissues,
prolonged
elimination
half‐life,
multimodal
imaging
capabilities,
making
them
effective
disease
diagnosis.
This
review
introduces
types
self‐assembled
fluorescent
peptide
nanoprobes
according
source
fluorescence
properties
summarizes
progress
application
diagnosis,
cancer,
neurodegenerative
disease,
bacterial
infection.
In
addition,
limitations
will
be
discussed,
new
proposed
development
advanced
peptide‐based
nanoprobes,
aimed
improving
potential
clinical
translation.
Language: Английский