Molecules,
Journal Year:
2024,
Volume and Issue:
29(24), P. 5990 - 5990
Published: Dec. 19, 2024
Specific
ion
effects
on
the
structure
and
function
of
many
biological
macromolecules,
their
associations,
colloidal
systems,
interfacial
phenomena,
even
“simple”
electrolytes
solutions
are
ubiquitous.
The
molecular
origin
such
phenomena
is
discussed
either
as
a
salt-induced
change
water
(the
hydrogen
bond
network)
or
some
specific
(solvent
mediated)
interactions
one
both
ions
electrolyte
with
investigated
co-solute
(macromolecules
particles).
case
hydrogels
high
interest
but
only
marginally
explored
respect
to
other
physico-chemical
systems
because
they
formed
through
gelling
agents
in
presence
added
electrolyte.
In
addition,
physiological
environment,
which
used
for
biomedical
applications,
may
be
subjected
fluctuations
ionic
environment.
this
review,
properties
(made
from
macromolecules
small-molecular-weight
gelators)
reviewed
discussed.
particular,
importance
binding
molecules
constituting
gel
network
versus
effect
same
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 29, 2024
Abstract
Designing
room‐temperature
phosphorescent
(RTP)
hydrogels
presents
a
unique
challenge
in
comparison
to
RTP
polymeric
films
and
powders,
due
the
quenching
of
phosphorescence
by
water
molecules
within
hydrogel
their
inherent
softness.
This
study
first
example
intrinsic
without
doping
luminophores
or
stiffening
agents.
The
is
synthesized
copolymerizing
acrylamide
(Am)
with
N
‐acryloyl‐aminoundecanoic
acid
(NAUA).
hydrophobic
NAUA
induces
phase
separation
network
glass
transition
can
stiffen
structure
constrain
mobility
chain
segments.
Under
such
condition,
clustering
amide
carboxylic
groups
triggers
emission
persistent
afterglow
exceeding
1.5
s,
which
as
good
reported
dopants.
When
heated
above
its
temperature,
modulus
drops
quickly
from
20.0
0.026
MPa
2
s
also
diminishes.
Taking
advantage
temperature‐switchable
rigidity
behavior,
are
endowed
functions
shape
memory,
temperature‐sensing,
information
concealment.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 6, 2024
Abstract
The
further
development
of
aqueous
zinc
(Zn)‐ion
batteries
(AZIBs)
is
constrained
by
the
high
freezing
points
and
instability
on
Zn
anodes.
Current
improvement
strategies
mainly
focus
regulating
hydrogen
bond
(HB)
donors
(H)
solvent
water
to
disrupt
HBs,
while
neglecting
environment
HB‐acceptors
(O).
Herein,
we
propose
a
mechanism
chaotropic
cation‐regulated
HB‐acceptor
via
“super
hydrous
solvated”
structure.
Chaotropic
Ca
2+
can
form
solvated
structure
competitively
binding
O
atoms
in
H
2
O,
effectively
breaking
HBs
among
molecules,
thereby
reducing
glass
transition
temperature
hybrid
1
mol
L
−1
(M)
ZnCl
+4
M
CaCl
electrolyte
(−113.2
°C).
Meanwhile,
hydratability
contributes
water‐poor
,
suppressing
side
reactions
uneven
deposition.
Benefiting
from
anti‐freezing
reversible
anode,
Zn||Pyrene‐4,5,9,10‐tetraone
(PTO)
deliver
an
ultrahigh
capacity
183.9
mAh
g
at
1.0
A
over
1600‐time
stable
cycling
−60
°C.
This
work
presents
cheap
efficient
simultaneously
improve
low‐temperature
performances
stability,
broadening
design
concepts
for
antifreeze
electrolytes.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 10, 2024
Abstract
Natural
materials
possess
inherent
multilength‐scale
structures,
showcasing
outstanding
mechanical
properties
such
as
strain‐stiffening,
high
damping,
and
shape‐memory
features
under
ambient
conditions.
Such
integrated
are
highly
desirable
for
advanced
in
biomedical
devices
soft
robots
but
remain
challenging
synthetic
materials.
Herein,
a
novel
strategy
of
sequential
ion
treatment
is
employed
to
introduce
micro/nanoscale‐ordered
structures
molecular‐scale
stimulus
responses
into
hydrogel‐derived
self‐assembly
fibers
The
treated
exhibit
strain‐stiffening
with
toughness
257
MJ
m
−3
73%
damping
capacity
comparable
spider
silk.
Owing
their
cross‐linking
network
reversible
secondary
structure,
those
water‐stability,
wet
stretchability,
hydration‐responsive
performance,
ultimate
elongation
407%,
shape‐fixity
ratio
94%,
shape‐recovery
rate
97%.
This
work
furthers
the
green
fabrication
smart
multifunction
presents
promising
applications
diverse
fields,
including
biomimetics
biomedicine.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(24), P. 5990 - 5990
Published: Dec. 19, 2024
Specific
ion
effects
on
the
structure
and
function
of
many
biological
macromolecules,
their
associations,
colloidal
systems,
interfacial
phenomena,
even
“simple”
electrolytes
solutions
are
ubiquitous.
The
molecular
origin
such
phenomena
is
discussed
either
as
a
salt-induced
change
water
(the
hydrogen
bond
network)
or
some
specific
(solvent
mediated)
interactions
one
both
ions
electrolyte
with
investigated
co-solute
(macromolecules
particles).
case
hydrogels
high
interest
but
only
marginally
explored
respect
to
other
physico-chemical
systems
because
they
formed
through
gelling
agents
in
presence
added
electrolyte.
In
addition,
physiological
environment,
which
used
for
biomedical
applications,
may
be
subjected
fluctuations
ionic
environment.
this
review,
properties
(made
from
macromolecules
small-molecular-weight
gelators)
reviewed
discussed.
particular,
importance
binding
molecules
constituting
gel
network
versus
effect
same
