Solvothermal Self‐Assembly of Hollow Square‐Tubular Polyimides for Aqueous Batteries
Ya Zhao,
Chaoqiao Yang,
Hexiang Zhong
и другие.
Small Methods,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 30, 2025
Abstract
In
this
study,
a
straightforward
and
environmentally
benign
solvothermal
method
for
synthesizing
hollow
square‐tubular
polyimides
(HST‐PIs)
is
introduced.
The
process
utilizes
1,4,5,8‐naphthalenetetracarboxylic
anhydride
urea
as
reactants,
replacing
traditional
toxic
organic
solvents
with
water
ethanol.
This
investigation
explores
the
effects
of
various
reaction
conditions,
such
water‐to‐ethanol
volume
ratio,
time,
temperature,
on
product
morphology,
resulting
in
distinct
structures
like
sheets,
columns,
layers.
Notably,
are
synthesized
under
specific
conditions:
2:1
24
h
200
°C
temperature.
study
attributes
self‐assembly
to
three
primary
non‐covalent
interactions:
hydrogen
bonding,
π–π
stacking,
hydrophobic
interactions.
gel
permeation
chromatography
(GPC)
analysis
indicates
that
PIs
molecular
weight
predominantly
ranges
from
10
000
15
000.
As
an
electrode
material,
square
tubular
exhibit
initial
discharge
capacity
297.9
mAh·g
−1
at
current
rate
0.1
C,
coulombic
efficiency
79%.
After
ten
cycles,
improves
97%
maintains
above
98%
subsequent
cycles.
presents
innovative
friendly
polymers.
Язык: Английский
Cold Atmospheric Plasma-Driven Structural Transformation of Self-Assembled Fmoc-Trp and Fmoc-Phe into Supramolecular Aggregated Assemblies
Langmuir,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 5, 2025
Supramolecular
chemistry
plays
a
key
role
in
the
design
of
functional
nanomaterials,
and
self-assembly
behavior
amino
acids
modified
with
Fmoc
group
has
gained
significant
attention
for
its
potential
nanotechnology
biomedicine.
This
study
investigates
N-9-fluorenylmethoxycarbonyl(Fmoc)-modified
impact
cold
atmospheric
plasma
(CAP)
on
their
transformation
from
2D
into
3D
supramolecular
aggregates.
Fmoc-phenylalanine
(Fmoc-F),
derivative
phenylalanine,
primarily
relies
π-π
stacking
interactions
to
form
structures
while
Fmoc-tryptophan
(Fmoc-W),
tryptophan,
engages
both
hydrogen
bonding
due
presence
an
indole
ring
nitrogen
atom,
leading
stronger
more
stable
Upon
CAP
treatment,
Fmoc-F
forms
aggregates
containing
β-sheet
moieties
binding
thioflavin
T
(dye)
at
concentrations
as
low
10
μM,
whereas
Fmoc-W
68
μM.
These
differences
aggregation
behaviors
can
be
attributed
distinct
molecular
two
derivatives.
The
rapid
treatment
time
nonthermal
properties
regulate
direct
process,
promoting
formation
complex
structures,
fluorescence
spectra
revealing
aggregation-induced
quenching
(ACQ).
Characterization
techniques
confirm
assemblies,
offering
valuable
insights
Fmoc-amino
acid-based
materials
applications
biomimetic
materials,
cationic
dye
binding,
drug
delivery,
tissue
engineering.
Язык: Английский
Stimuli-Responsive Polymer Actuator for Soft Robotics
Polymers,
Год журнала:
2024,
Номер
16(18), С. 2660 - 2660
Опубликована: Сен. 21, 2024
Polymer
actuators
are
promising,
as
they
widely
used
in
various
fields,
such
sensors
and
soft
robotics,
for
their
unique
properties,
ability
to
form
high-quality
films,
sensitivity,
flexibility.
In
recent
years,
advances
structural
fabrication
processes
have
significantly
improved
the
reliability
of
polymer
sensing-based
actuators.
attracted
considerable
attention
use
artificial
or
biohybrid
systems,
potential
operate
under
diverse
conditions
with
high
durability.
This
review
briefly
describes
different
types
provides
an
understanding
working
mechanisms.
It
focuses
on
actuation
modes
controlled
by
multiple
stimuli.
Furthermore,
it
discusses
actuators;
process
is
important
consideration
development
sensing
properties
a
wide
range
applications
robotics.
Additionally,
technology
examined,
latest
developments
field
actuators,
polymers
4D
printing,
described.
Язык: Английский
Trends in Protein Derived Materials for Wound Care Applications
Biomaterials Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 1, 2024
Natural
resource
based
polymers,
especially
those
derived
from
proteins,
have
attracted
significant
attention
for
their
potential
utilization
in
advanced
wound
care
applications.
Protein
materials
provide
superior
biocompatibility,
biodegradability,
and
other
functionalities
compared
to
conventional
dressings.
The
effectiveness
of
various
fabrication
techniques,
such
as
electrospinning,
phase
separation,
self-assembly,
ball
milling,
is
examined
the
context
developing
protein-based
healing.
These
methods
produce
a
wide
range
forms,
including
hydrogels,
scaffolds,
sponges,
films,
bioinspired
nanomaterials,
each
designed
specific
types
wounds
different
stages
This
review
presents
comprehensive
analysis
recent
research
that
investigates
transformation
proteins
into
healing
Our
focus
on
essential
keratin,
collagen,
gelatin,
silk,
zein,
albumin,
we
emphasize
distinct
traits
roles
management.
Protein-based
show
promising
biomedical
engineering,
offering
improved
capabilities
reduced
risks
infection.
It
crucial
explore
use
these
clinical
settings
while
also
addressing
challenges
may
arise
commercialization
future.
Язык: Английский
Review on polydopamine supramolecular ordering – mechanism elucidation and application in 2D nanocomposites fabrication
European Polymer Journal,
Год журнала:
2024,
Номер
221, С. 113530 - 113530
Опубликована: Окт. 30, 2024
Язык: Английский
Theoretical investigations on the Energy gap, UV- Vis Spectrum and Thermochemical Properties of PVA doped with ZnO andTiO2
Wasit Journal of Pure sciences,
Год журнала:
2024,
Номер
3(4), С. 289 - 298
Опубликована: Дек. 30, 2024
Different
polymers
have
attractive
multiple
properties
due
to
their
uses
in
many
fields.
The
synthesized
polymer
polyvinly
alcohol
(PVA)
with
metal
oxide
nanoparticles
has
applications
different
approaches,
such
as
electronics,
sensors,
optical,
optoelectronics,
and
biomedical
study
was
carried
out
within
the
framework
of
density
functional
theory
B3LYP
exchange-
correlation
energy
functionals
6-31G(d,
p).
Three
compounds
were
PVA
zinc
(ZnO)
Titanium
dioxide
(TiO2)
nanocomposites.
results
proved
that
using
these
oxides
is
a
good
way
improve
electronic
gap
decreased
from
3.8
3.4
eV
3.3
PVA/TiO2
PVA/ZnO,
respectively.
This
demonstrates
semiconductor
character
related
solar
cell
manufacturing.
photosensitivity
both
PVA/ZnO
samples
FTIR
UV-Vis
indicated
TiO2
ZnO
interacted
strongly
PVA.
So
they
can
be
used
other
applications,
storage
capacitors.
vibrational
mode
then
analyzed
terms
force
constant
reduced
mass,
which
relatively
hydrogen
vibrations.
Язык: Английский